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ID Date Author Topicup Subject
  1719   06 Oct 2019 Nik BergerBug ReportHistory data size mismatch
Logging a list of variables to the history via links in the history ODB subtree,
we get messages as follows at every run start:

19:43:24.009 2019/10/06 [Logger,ERROR] [history_schema.cxx:2676:hs_write_event,ERROR] Event 'System' data size mismatch: expected 412 bytes, got 416 bytes

19:43:24.008 2019/10/06 [Logger,ERROR] [history_schema.cxx:2676:hs_write_event,ERROR] Event 'System' data size mismatch: expected 412 bytes, got 416 bytes

19:43:23.850 2019/10/06 [Logger,ERROR] [history_schema.cxx:455:hs_write_event,ERROR] Event 'System' data size mismatch count: 25, expected 412 bytes, hs_write_event() called with as much as 416 bytes

19:43:23.850 2019/10/06 [Logger,ERROR] [history_schema.cxx:455:hs_write_event,ERROR] Event 'System' data size mismatch count: 25, expected 412 bytes, hs_write_event() called with as much as 416 bytes

The history calculates the size of a record from the size of the individual variables, (history_schema.cxx, L2666 ff), whereas the ODB delivers the data aligned/padded to the size of the largest value in the record.
In our history, a long list of doubles (64 Bit) fas followed by three floats (32 bit), leading to a padded response from the ODB, 4 byte longer than the history expects.
Quick fix: Add another 32 bit dummy variable to the history. Gets rid of the error messages...
Should probably be fixed at a deeper level...
  1720   06 Oct 2019 Stefan RittBug ReportHistory data size mismatch
I wonder why do you this via ODB links. The "standard" way of writing to the history should be to create events for an equipment and flag this equipment as being written to the
history. All variables under /Equipment/<name>/Variables then automatically go into the history and you don't have to worry about ODB links. Only variables not fitting the
equipment/variables scheme should be dealt with via ODB links, like variables under equipment/statistics or parameters in another ODB tree. In a typical midas experiment, only
very few variables typically go into the 'System' event. This is however probably not a solution to your problem. If you have a similar structure (doubles plus an odd number of floats)
under 'variables', you might get the same error. I'n in contact with KO to fix this problem at the root level.

Stefan

> Logging a list of variables to the history via links in the history ODB subtree,
> we get messages as follows at every run start:
> 
> 19:43:24.009 2019/10/06 [Logger,ERROR] [history_schema.cxx:2676:hs_write_event,ERROR] Event 'System' data size mismatch: expected 412 bytes, got 416 bytes
> 
> 19:43:24.008 2019/10/06 [Logger,ERROR] [history_schema.cxx:2676:hs_write_event,ERROR] Event 'System' data size mismatch: expected 412 bytes, got 416 bytes
> 
> 19:43:23.850 2019/10/06 [Logger,ERROR] [history_schema.cxx:455:hs_write_event,ERROR] Event 'System' data size mismatch count: 25, expected 412 bytes, hs_write_event() called with as much as 416 bytes
> 
> 19:43:23.850 2019/10/06 [Logger,ERROR] [history_schema.cxx:455:hs_write_event,ERROR] Event 'System' data size mismatch count: 25, expected 412 bytes, hs_write_event() called with as much as 416 bytes
> 
> The history calculates the size of a record from the size of the individual variables, (history_schema.cxx, L2666 ff), whereas the ODB delivers the data aligned/padded to the size of the largest value in the record.
> In our history, a long list of doubles (64 Bit) fas followed by three floats (32 bit), leading to a padded response from the ODB, 4 byte longer than the history expects.
> Quick fix: Add another 32 bit dummy variable to the history. Gets rid of the error messages...
> Should probably be fixed at a deeper level...
  1721   10 Oct 2019 Konstantin OlchanskiBug ReportHistory data size mismatch
>
> In our history, a long list of doubles (64 Bit) fas followed by three floats (32 bit)
>

Padding trouble, mixing "double" and "float" trouble. Ouch.

Best wisdom I received on this: never use "float", always use "double".

I was burned by "float" with following code, which produced the same result from
analyzing 100 files as from analyzing 1000 files. (why did we take data for 10 weeks
instead of 1 week?). Hint: "float" overflows way too quickly, after overflow sum+=1 does not change
the value of "sum". The actual code used ROOT TH1F. Lesson: always use TH1D.

float sum = 0; // should always be "double" !!!
foreach data_file {
    foreach data from current data file {
        sum += data;
    }   
}
print sum;

K.O.
  1722   10 Oct 2019 Nik BergerBug ReportHistory data size mismatch
>I wonder why do you this via ODB links. The "standard" way of writing to the history should be to create events for an equipment and flag this equipment as being written to the
>history. All variables under /Equipment/<name>/Variables then automatically go into the history and you don't have to worry about ODB links. Only variables not fitting the
>equipment/variables scheme should be dealt with via ODB links, like variables under equipment/statistics or parameters in another ODB tree. In a typical midas experiment, only
>very few variables typically go into the 'System' event. This is however probably not a solution to your problem. If you have a similar structure (doubles plus an odd number of floats)
>under 'variables', you might get the same error.

>
> In our history, a long list of doubles (64 Bit) fas followed by three floats (32 bit)
>

We do this in the MuX DAQ and mix things that come directly from MIDAS (the MIDAS trigger rate) and things from the
analyzer (rates in the self-triggering detectors) and some temperatures from yet somewhere else. Yes, we could have
kept that apart, yes, in this case a double would also work (and not break things), but a bug is a bug...
I could think of senisble use cases where doubles and ints are mixed and I also know quite a few areas where it makes
sense to use floats...

Nik
  1723   10 Oct 2019 Stefan RittBug ReportHistory data size mismatch
> Yes, we could have
> kept that apart, yes, in this case a double would also work (and not break things), but a bug is a bug...
> I could think of senisble use cases where doubles and ints are mixed and I also know quite a few areas where it makes
> sense to use floats...

I agree with Nik that we should fix this on the midas level. Since it happens in history_schema.cxx which was written by KO, maybe he can have a look.

Stefan
  1724   14 Oct 2019 Stefan RittBug Reportlazylogger in cmake & max_event_size
> > The compile option -DHAVE_FTPLIB checked in mdsupport.cxx disappeared if you 
> > compile with cmake.
> 
> Hi, Stefan - do we still need to support FTP in the logger? In the lazylogger, special support for 
> FTP is not needed, they can you the "script" method and do FTP without our help.
> 
> I move to remove FTP support from MIDAS. (second? other opinions?)

I oppose to remove FTP support from lazylogger. We still use it heavily at PSI. In comparison to the "script" method, it 
shows the current speed in MB/s which helps us to diagnose some network problem by writing this number into the 
history. The "script" method only give you an integral transfer speed after a file has be completely written.

I'm however not sure who FTP is used in lazylogger. It goes into mdsupport.cxx and I seem to remember that Pierre 
wrote the FTP code by hand, so no external library is necessary.

Stefan
Attachment 1: Screenshot_2019-10-14_at_13.54.53_.png
Screenshot_2019-10-14_at_13.54.53_.png
  1730   24 Oct 2019 Konstantin OlchanskiBug Reportlazylogger in cmake & max_event_size
> > > The compile option -DHAVE_FTPLIB checked in mdsupport.cxx disappeared if you 
> > > compile with cmake.
> > 
> > Hi, Stefan - do we still need to support FTP in the logger? In the lazylogger, special support for 
> > FTP is not needed, they can you the "script" method and do FTP without our help.
> > 
> > I move to remove FTP support from MIDAS. (second? other opinions?)
> 
> I oppose to remove FTP support from lazylogger.

Confirmed. FTP support in lazylogger stays.

K.O.
  1731   08 Nov 2019 Pierre GorelBug ReportNewly installed MIDAS on OSX: mhttpd crahes
Context: out of the box  MIDAS (using cmake) on OSX Mojave. 

Running with mongoose/opensslm installation following instruction here:
https://midas.triumf.ca/MidasWiki/index.php/Quickstart_Linux

mhttpd crashing when midas webpage opened with Safari (12.1.2). Usually when opening the "chat" tab but sometimes also with the "message" tab.
mhttpd(11109,0x70000827a000) malloc: *** error for object 0x7f8669501ef0: pointer being freed was not allocated
mhttpd(11109,0x70000827a000) malloc: *** set a breakpoint in malloc_error_break to debug

No crash if using firefox (70.0.1 (64-bit))
  1732   12 Nov 2019 Konstantin OlchanskiBug ReportNewly installed MIDAS on OSX: mhttpd crahes
> Context: out of the box  MIDAS (using cmake) on OSX Mojave. 
> 
> Running with mongoose/opensslm installation following instruction here:
> https://midas.triumf.ca/MidasWiki/index.php/Quickstart_Linux
> 
> mhttpd crashing when midas webpage opened with Safari (12.1.2). Usually when opening the "chat" tab but sometimes also with the "message" tab.
> mhttpd(11109,0x70000827a000) malloc: *** error for object 0x7f8669501ef0: pointer being freed was not allocated
> mhttpd(11109,0x70000827a000) malloc: *** set a breakpoint in malloc_error_break to debug
> 
> No crash if using firefox (70.0.1 (64-bit))

I think we also have reports of mhttpd crash on macos with safari from the Dragon experiment,
but cannot reproduce the problem.

If you can reproduce this, can you capture the crash stack trace?

One way to do this is to enable core dumps in odb "/expt/enable core dumps" set to "y", restart mhttpd,
wait for the crash. I think macos writes core dumps into /cores/... Or you can run mhttpd inside lldb
and wait for the crash. the lldb command to show the stack trace is "bt", but you may need
to switch to different threads to see which one actually crashed. I forget what the command
for that is.

BTW, the mhttpd networking code has not changed in a long time, but an update
of mongoose web server library is overdue (to fix a memory leak, at least).

K.O.
  1734   15 Nov 2019 Pierre GorelBug ReportNewly installed MIDAS on OSX: mhttpd crahes
It is reproducible alright.
Here are the core dump and the backtrace (I think  the former is more informative).



> > Context: out of the box  MIDAS (using cmake) on OSX Mojave. 
> > 
> > Running with mongoose/opensslm installation following instruction here:
> > https://midas.triumf.ca/MidasWiki/index.php/Quickstart_Linux
> > 
> > mhttpd crashing when midas webpage opened with Safari (12.1.2). Usually when opening the "chat" tab but sometimes also with the "message" tab.
> > mhttpd(11109,0x70000827a000) malloc: *** error for object 0x7f8669501ef0: pointer being freed was not allocated
> > mhttpd(11109,0x70000827a000) malloc: *** set a breakpoint in malloc_error_break to debug
> > 
> > No crash if using firefox (70.0.1 (64-bit))
> 
> I think we also have reports of mhttpd crash on macos with safari from the Dragon experiment,
> but cannot reproduce the problem.
> 
> If you can reproduce this, can you capture the crash stack trace?
> 
> One way to do this is to enable core dumps in odb "/expt/enable core dumps" set to "y", restart mhttpd,
> wait for the crash. I think macos writes core dumps into /cores/... Or you can run mhttpd inside lldb
> and wait for the crash. the lldb command to show the stack trace is "bt", but you may need
> to switch to different threads to see which one actually crashed. I forget what the command
> for that is.
> 
> BTW, the mhttpd networking code has not changed in a long time, but an update
> of mongoose web server library is overdue (to fix a memory leak, at least).
> 
> K.O.
Attachment 1: mhttpd_lldb_bt.txt
SnoGlobe:~/packages/midas/build> lldb mhttpd
(lldb) target create "mhttpd"
Current executable set to 'mhttpd' (x86_64).
(lldb) r
Process 15988 launched: '/Users/acquis/packages/midas/bin/mhttpd' (x86_64)
Mongoose web server will use SSL certificate file "/Users/acquis/online/ssl_cert.pem"
Mongoose web server will use authentication realm "snoglobe", password file "/Users/acquis/online/htpasswd.txt"
mongoose web server is redirecting HTTP port 8080 to https://SnoGlobe.local:8443
mongoose web server is listening on the HTTP port 8080
mongoose web server is listening on the HTTPS port 8443
mhttpd(15988,0x70000146e000) malloc: *** error for object 0x100608790: pointer being freed was not allocated
mhttpd(15988,0x70000146e000) malloc: *** set a breakpoint in malloc_error_break to debug
Process 15988 stopped
* thread #2, stop reason = signal SIGABRT
    frame #0: 0x00007fff7456c2c6 libsystem_kernel.dylib`__pthread_kill + 10
libsystem_kernel.dylib`__pthread_kill:
->  0x7fff7456c2c6 <+10>: jae    0x7fff7456c2d0            ; <+20>
    0x7fff7456c2c8 <+12>: movq   %rax, %rdi
    0x7fff7456c2cb <+15>: jmp    0x7fff74566457            ; cerror_nocancel
    0x7fff7456c2d0 <+20>: retq   
Target 0: (mhttpd) stopped.
(lldb) bt
* thread #2, stop reason = signal SIGABRT
  * frame #0: 0x00007fff7456c2c6 libsystem_kernel.dylib`__pthread_kill + 10
    frame #1: 0x00007fff74627bf1 libsystem_pthread.dylib`pthread_kill + 284
    frame #2: 0x00007fff744d66a6 libsystem_c.dylib`abort + 127
    frame #3: 0x00007fff745e5077 libsystem_malloc.dylib`malloc_vreport + 545
    frame #4: 0x00007fff745e4e38 libsystem_malloc.dylib`malloc_report + 151
    frame #5: 0x000000010004fe53 mhttpd`AuthEntry::~AuthEntry(this=0x0000000101300220) at mhttpd.cxx:16983:8
    frame #6: 0x000000010004fe25 mhttpd`AuthEntry::~AuthEntry(this=0x0000000101300220) at mhttpd.cxx:16983:8
    frame #7: 0x000000010004fe09 mhttpd`std::__1::allocator<AuthEntry>::destroy(this=0x00000001001b0f10, __p=0x0000000101300220) at memory:1880:64
    frame #8: 0x000000010004fddd mhttpd`void std::__1::allocator_traits<std::__1::allocator<AuthEntry> >::__destroy<AuthEntry>((null)=std::__1::true_type @ 0x000070000146cc28, __a=0x00000001001b0f10, __p=0x0000000101300220) at memory:1742:18
    frame #9: 0x000000010004fd9d mhttpd`void std::__1::allocator_traits<std::__1::allocator<AuthEntry> >::destroy<AuthEntry>(__a=0x00000001001b0f10, __p=0x0000000101300220) at memory:1595:14
    frame #10: 0x000000010004fd58 mhttpd`std::__1::__vector_base<AuthEntry, std::__1::allocator<AuthEntry> >::__destruct_at_end(this=0x00000001001b0f00, __new_last=0x0000000101300220) at vector:421:9
    frame #11: 0x000000010004fc68 mhttpd`std::__1::__vector_base<AuthEntry, std::__1::allocator<AuthEntry> >::clear(this=0x00000001001b0f00) at vector:364:29
    frame #12: 0x000000010004ff76 mhttpd`std::__1::vector<AuthEntry, std::__1::allocator<AuthEntry> >::clear(this=0x00000001001b0f00 size=1) at vector:766:17
    frame #13: 0x00000001000494d3 mhttpd`read_passwords(auth=0x00000001001b0ec8) at mhttpd.cxx:17047:20
    frame #14: 0x00000001000519d5 mhttpd`handle_http_message(nc=0x0000000100608860, msg=0x000070000146d5a0) at mhttpd.cxx:17719:20
    frame #15: 0x00000001000499e0 mhttpd`handle_http_event_mg(nc=0x0000000100608860, ev=100, ev_data=0x000070000146d5a0) at mhttpd.cxx:17765:7
    frame #16: 0x00000001000650db mhttpd`mg_call(nc=0x0000000100608860, ev_handler=(mhttpd`handle_http_event_mg(mg_connection*, int, void*) at mhttpd.cxx:17760), ev=100, ev_data=0x000070000146d5a0)(mg_connection*, int, void*), int, void*) at mongoose6.cxx:2120:5
    frame #17: 0x000000010006c92b mhttpd`mg_http_call_endpoint_handler(nc=0x0000000100608860, ev=100, hm=0x000070000146d5a0) at mongoose6.cxx:4945:3
    frame #18: 0x000000010006c7c5 mhttpd`mg_http_handler(nc=0x0000000100608860, ev=3, ev_data=0x000070000146dbcc) at mongoose6.cxx:5139:5
    frame #19: 0x00000001000650db mhttpd`mg_call(nc=0x0000000100608860, ev_handler=(mhttpd`mg_http_handler(mg_connection*, int, void*) at mongoose6.cxx:4974), ev=3, ev_data=0x000070000146dbcc)(mg_connection*, int, void*), int, void*) at mongoose6.cxx:2120:5
    frame #20: 0x00000001000670c8 mhttpd`mg_recv_common(nc=0x0000000100608860, buf=0x0000000100801000, len=401) at mongoose6.cxx:2676:3
    frame #21: 0x0000000100066f83 mhttpd`mg_if_recv_tcp_cb(nc=0x0000000100608860, buf=0x0000000100801000, len=401) at mongoose6.cxx:2680:3
    frame #22: 0x0000000100069d32 mhttpd`mg_read_from_socket(conn=0x0000000100608860) at mongoose6.cxx:3378:7
    frame #23: 0x00000001000695f6 mhttpd`mg_mgr_handle_conn(nc=0x0000000100608860, fd_flags=1, now=1573832400.4958119) at mongoose6.cxx:3511:9
    frame #24: 0x0000000100065b74 mhttpd`::mg_mgr_poll(mgr=0x000070000146ded8, timeout_ms=1000) at mongoose6.cxx:3687:5
    frame #25: 0x0000000100076087 mhttpd`per_connection_thread_function(param=0x0000000100608860) at mongoose6.cxx:3805:5
    frame #26: 0x00007fff746252eb libsystem_pthread.dylib`_pthread_body + 126
    frame #27: 0x00007fff74628249 libsystem_pthread.dylib`_pthread_start + 66
    frame #28: 0x00007fff7462440d libsystem_pthread.dylib`thread_start + 13
(lldb) .q
Attachment 2: mhttpd_2019-11-15-104252_SnoGlobe.crash
Process:               mhttpd [16037]
Path:                  /Users/USER/*/mhttpd
Identifier:            mhttpd
Version:               0
Code Type:             X86-64 (Native)
Parent Process:        tcsh [16008]
Responsible:           mhttpd [16037]
User ID:               501

Date/Time:             2019-11-15 10:42:51.751 -0500
OS Version:            Mac OS X 10.14.6 (18G95)
Report Version:        12
Anonymous UUID:        27D16641-6679-1AAE-440D-3CF11831B5B1

Sleep/Wake UUID:       6841695D-3153-4F9B-A340-F98C52E55F40

Time Awake Since Boot: 760000 seconds
Time Since Wake:       69000 seconds

System Integrity Protection: enabled

Crashed Thread:        4

Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000
Exception Note:        EXC_CORPSE_NOTIFY

Application Specific Information:
abort() called
mhttpd(16037,0x70000256e000) malloc: *** error for object 0x7fe8ba000030: pointer being freed was not allocated
 

Thread 0:: Dispatch queue: com.apple.main-thread
0   libsystem_kernel.dylib        	0x00007fff7456d61a __select + 10
1   mhttpd                        	0x00000001003719ae mg_mgr_poll + 846 (mongoose6.cxx:3651)
2   mhttpd                        	0x0000000100355ca5 loop_mg() + 133 (mhttpd.cxx:18013)
3   mhttpd                        	0x00000001003567c9 main + 2825 (mhttpd.cxx:18271)
4   libdyld.dylib                 	0x00007fff744313d5 start + 1

Thread 1:
0   libsystem_kernel.dylib        	0x00007fff74569f32 __semwait_signal + 10
1   libsystem_c.dylib             	0x00007fff744f5914 nanosleep + 199
2   mhttpd                        	0x00000001003efa3e ss_sleep(int) + 126 (system.cxx:3310)
3   mhttpd                        	0x00000001003b43da cm_watchdog_thread(void*) + 90 (midas.cxx:6453)
4   libsystem_pthread.dylib       	0x00007fff746252eb _pthread_body + 126
5   libsystem_pthread.dylib       	0x00007fff74628249 _pthread_start + 66
6   libsystem_pthread.dylib       	0x00007fff7462440d thread_start + 13

Thread 2:
0   libsystem_kernel.dylib        	0x00007fff7456d61a __select + 10
1   mhttpd                        	0x00000001003719ae mg_mgr_poll + 846 (mongoose6.cxx:3651)
2   mhttpd                        	0x0000000100382087 per_connection_thread_function(void*) + 71 (mongoose6.cxx:3804)
3   libsystem_pthread.dylib       	0x00007fff746252eb _pthread_body + 126
4   libsystem_pthread.dylib       	0x00007fff74628249 _pthread_start + 66
5   libsystem_pthread.dylib       	0x00007fff7462440d thread_start + 13

Thread 3:
0   mhttpd                        	0x0000000100405477 std::__1::enable_if<(is_move_constructible<MJsonNode**>::value) && (is_move_assignable<MJsonNode**>::value), void>::type std::__1::swap<MJsonNode**>(MJsonNode**&, MJsonNode**&) + 55 (type_traits:4506)
1   mhttpd                        	0x0000000100404fbd std::__1::vector<MJsonNode*, std::__1::allocator<MJsonNode*> >::__swap_out_circular_buffer(std::__1::__split_buffer<MJsonNode*, std::__1::allocator<MJsonNode*>&>&) + 125 (vector:934)
2   mhttpd                        	0x0000000100404d8c void std::__1::vector<MJsonNode*, std::__1::allocator<MJsonNode*> >::__push_back_slow_path<MJsonNode* const&>(MJsonNode* const&&&) + 172 (vector:1615)
3   mhttpd                        	0x00000001003ff204 std::__1::vector<MJsonNode*, std::__1::allocator<MJsonNode*> >::push_back(MJsonNode* const&) + 164 (vector:1633)
4   mhttpd                        	0x00000001003ff781 MJsonNode::AddToObject(char const*, MJsonNode*) + 113 (mjson.cxx:899)
5   mhttpd                        	0x0000000100410112 js_db_get_values(MJsonNode const*) + 4258 (mjsonrpc.cxx:767)
6   mhttpd                        	0x000000010042208b mjsonrpc_handle_request(MJsonNode const*) + 2475 (mjsonrpc.cxx:4150)
7   mhttpd                        	0x00000001004213dd mjsonrpc_decode_post_data(char const*) + 1293 (mjsonrpc.cxx:4265)
8   mhttpd                        	0x000000010035fa4a handle_http_post(mg_connection*, http_message const*, char const*, RequestTrace*) + 858 (mhttpd.cxx:17545)
9   mhttpd                        	0x000000010035dd41 handle_http_message(mg_connection*, http_message*) + 1745 (mhttpd.cxx:17744)
10  mhttpd                        	0x00000001003559e0 handle_http_event_mg(mg_connection*, int, void*) + 96 (mhttpd.cxx:17766)
11  mhttpd                        	0x00000001003710db mg_call(mg_connection*, void (*)(mg_connection*, int, void*), int, void*) + 427 (mongoose6.cxx:2121)
12  mhttpd                        	0x000000010037892b mg_http_call_endpoint_handler(mg_connection*, int, http_message*) + 203 (mongoose6.cxx:4947)
13  mhttpd                        	0x00000001003787c5 mg_http_handler(mg_connection*, int, void*) + 1365 (mongoose6.cxx:5141)
14  mhttpd                        	0x00000001003710db mg_call(mg_connection*, void (*)(mg_connection*, int, void*), int, void*) + 427 (mongoose6.cxx:2121)
15  mhttpd                        	0x00000001003730c8 mg_recv_common(mg_connection*, void*, int) + 312 (mongoose6.cxx:2677)
16  mhttpd                        	0x0000000100372f83 mg_if_recv_tcp_cb(mg_connection*, void*, int) + 35 (mongoose6.cxx:2681)
17  mhttpd                        	0x0000000100375d32 mg_read_from_socket(mg_connection*) + 514 (mongoose6.cxx:3379)
18  mhttpd                        	0x00000001003755f6 mg_mgr_handle_conn(mg_connection*, int, double) + 486
19  mhttpd                        	0x0000000100371b74 mg_mgr_poll + 1300 (mongoose6.cxx:3663)
20  mhttpd                        	0x0000000100382087 per_connection_thread_function(void*) + 71 (mongoose6.cxx:3804)
21  libsystem_pthread.dylib       	0x00007fff746252eb _pthread_body + 126
22  libsystem_pthread.dylib       	0x00007fff74628249 _pthread_start + 66
23  libsystem_pthread.dylib       	0x00007fff7462440d thread_start + 13

Thread 4 Crashed:
0   libsystem_kernel.dylib        	0x00007fff7456c2c6 __pthread_kill + 10
1   libsystem_pthread.dylib       	0x00007fff74627bf1 pthread_kill + 284
2   libsystem_c.dylib             	0x00007fff744d66a6 abort + 127
3   libsystem_malloc.dylib        	0x00007fff745e5077 malloc_vreport + 545
4   libsystem_malloc.dylib        	0x00007fff745e4e38 malloc_report + 151
5   mhttpd                        	0x000000010035be53 HsSchemaEntry::~HsSchemaEntry() + 35 (mhttpd.cxx:16983)
6   mhttpd                        	0x000000010035be25 HsSchemaEntry::~HsSchemaEntry() + 21 (mhttpd.cxx:16983)
7   mhttpd                        	0x000000010035be09 std::__1::allocator<AuthEntry>::destroy(AuthEntry*) + 25 (memory:1880)
8   mhttpd                        	0x000000010035bddd void std::__1::allocator_traits<std::__1::allocator<AuthEntry> >::__destroy<AuthEntry>(std::__1::integral_constant<bool, true>, std::__1::allocator<AuthEntry>&, AuthEntry*) + 29 (memory:1742)
9   mhttpd                        	0x000000010035bd9d void std::__1::allocator_traits<std::__1::allocator<AuthEntry> >::destroy<AuthEntry>(std::__1::allocator<AuthEntry>&, AuthEntry*) + 29 (memory:1595)
10  mhttpd                        	0x000000010035bd58 std::__1::__vector_base<AuthEntry, std::__1::allocator<AuthEntry> >::__destruct_at_end(AuthEntry*) + 88 (vector:421)
11  mhttpd                        	0x000000010035bc68 std::__1::__vector_base<AuthEntry, std::__1::allocator<AuthEntry> >::clear() + 24 (vector:364)
12  mhttpd                        	0x000000010035bf76 std::__1::vector<AuthEntry, std::__1::allocator<AuthEntry> >::clear() + 38 (vector:767)
13  mhttpd                        	0x00000001003554d3 read_passwords(Auth*) + 195 (mhttpd.cxx:17049)
14  mhttpd                        	0x000000010035d9d5 handle_http_message(mg_connection*, http_message*) + 869 (mhttpd.cxx:17719)
15  mhttpd                        	0x00000001003559e0 handle_http_event_mg(mg_connection*, int, void*) + 96 (mhttpd.cxx:17766)
16  mhttpd                        	0x00000001003710db mg_call(mg_connection*, void (*)(mg_connection*, int, void*), int, void*) + 427 (mongoose6.cxx:2121)
17  mhttpd                        	0x000000010037892b mg_http_call_endpoint_handler(mg_connection*, int, http_message*) + 203 (mongoose6.cxx:4947)
18  mhttpd                        	0x00000001003787c5 mg_http_handler(mg_connection*, int, void*) + 1365 (mongoose6.cxx:5141)
19  mhttpd                        	0x00000001003710db mg_call(mg_connection*, void (*)(mg_connection*, int, void*), int, void*) + 427 (mongoose6.cxx:2121)
20  mhttpd                        	0x00000001003730c8 mg_recv_common(mg_connection*, void*, int) + 312 (mongoose6.cxx:2677)
21  mhttpd                        	0x0000000100372f83 mg_if_recv_tcp_cb(mg_connection*, void*, int) + 35 (mongoose6.cxx:2681)
22  mhttpd                        	0x0000000100375d32 mg_read_from_socket(mg_connection*) + 514 (mongoose6.cxx:3379)
23  mhttpd                        	0x00000001003755f6 mg_mgr_handle_conn(mg_connection*, int, double) + 486
24  mhttpd                        	0x0000000100371b74 mg_mgr_poll + 1300 (mongoose6.cxx:3663)
25  mhttpd                        	0x0000000100382087 per_connection_thread_function(void*) + 71 (mongoose6.cxx:3804)
26  libsystem_pthread.dylib       	0x00007fff746252eb _pthread_body + 126
27  libsystem_pthread.dylib       	0x00007fff74628249 _pthread_start + 66
28  libsystem_pthread.dylib       	0x00007fff7462440d thread_start + 13

Thread 5:
0   libsystem_kernel.dylib        	0x00007fff7456d61a __select + 10
1   mhttpd                        	0x00000001003719ae mg_mgr_poll + 846 (mongoose6.cxx:3651)
2   mhttpd                        	0x0000000100382087 per_connection_thread_function(void*) + 71 (mongoose6.cxx:3804)
3   libsystem_pthread.dylib       	0x00007fff746252eb _pthread_body + 126
4   libsystem_pthread.dylib       	0x00007fff74628249 _pthread_start + 66
5   libsystem_pthread.dylib       	0x00007fff7462440d thread_start + 13

Thread 6:
0   libsystem_kernel.dylib        	0x00007fff7456d61a __select + 10
1   mhttpd                        	0x00000001003719ae mg_mgr_poll + 846 (mongoose6.cxx:3651)
2   mhttpd                        	0x0000000100382087 per_connection_thread_function(void*) + 71 (mongoose6.cxx:3804)
3   libsystem_pthread.dylib       	0x00007fff746252eb _pthread_body + 126
4   libsystem_pthread.dylib       	0x00007fff74628249 _pthread_start + 66
5   libsystem_pthread.dylib       	0x00007fff7462440d thread_start + 13

Thread 4 crashed with X86 Thread State (64-bit):
  rax: 0x0000000000000000  rbx: 0x000070000256e000  rcx: 0x000070000256c9f8  rdx: 0x0000000000000000
  rdi: 0x0000000000000d07  rsi: 0x0000000000000006  rbp: 0x000070000256ca30  rsp: 0x000070000256c9f8
   r8: 0x0000000000000000   r9: 0x000070000256c950  r10: 0x0000000000000000  r11: 0x0000000000000206
  r12: 0x0000000000000d07  r13: 0x0000000100ee1000  r14: 0x0000000000000006  r15: 0x000000000000002d
  rip: 0x00007fff7456c2c6  rfl: 0x0000000000000206  cr2: 0x000000072c967008
  
Logical CPU:     0
Error Code:      0x0200005d
Trap Number:     133


Binary Images:
       0x10030c000 -        0x1004afff7 +mhttpd (0) <7F574F87-D453-37BF-B8C0-97FD8E8A6C84> /Users/USER/*/mhttpd
       0x104f06000 -        0x104f7070f  dyld (655.1.1) <DFC3C4AF-6F97-3B34-B18D-7DCB23F2A83A> /usr/lib/dyld
    0x7fff6f14e000 -     0x7fff6f14ffff  com.apple.TrustEvaluationAgent (2.0 - 31.200.1) <15DF9C73-54E4-3C41-BCF4-378338C55FB4> /System/Library/PrivateFrameworks/TrustEvaluationAgent.framework/Versions/A/TrustEvaluationAgent
    0x7fff71418000 -     0x7fff71419ffb  libSystem.B.dylib (1252.250.1) <B1006948-7AD0-3CA9-81E0-833F4DD6BFB4> /usr/lib/libSystem.B.dylib
    0x7fff7165b000 -     0x7fff716aeff7  libc++.1.dylib (400.9.4) <9A60A190-6C34-339F-BB3D-AACE942009A4> /usr/lib/libc++.1.dylib
    0x7fff716af000 -     0x7fff716c4ff7  libc++abi.dylib (400.17) <38C09CED-9090-3719-90F3-04A2749F5428> /usr/lib/libc++abi.dylib
    0x7fff71b1a000 -     0x7fff71c12ff7  libcrypto.35.dylib (22.260.1) <91C3D71A-4D1D-331D-89CC-67863DF10574> /usr/lib/libcrypto.35.dylib
    0x7fff72c4f000 -     0x7fff733d4fdf  libobjc.A.dylib (756.2) <7C312627-43CB-3234-9324-4DEA92D59F50> /usr/lib/libobjc.A.dylib
    0x7fff737e0000 -     0x7fff73813ff3  libssl.35.dylib (22.260.1) <EEBCC1DE-A2C2-30CC-AEA3-1B2193B11DAA> /usr/lib/libssl.35.dylib
    0x7fff73abe000 -     0x7fff73ad0ff7  libz.1.dylib (70.200.4) <B048FC1F-058F-3A08-A1FE-81D5308CB3E6> /usr/lib/libz.1.dylib
    0x7fff742b4000 -     0x7fff742b8ff3  libcache.dylib (81) <1987D1E1-DB11-3291-B12A-EBD55848E02D> /usr/lib/system/libcache.dylib
    0x7fff742b9000 -     0x7fff742c3ff3  libcommonCrypto.dylib (60118.250.2) <1765BB6E-6784-3653-B16B-CB839721DC9A> /usr/lib/system/libcommonCrypto.dylib
    0x7fff742c4000 -     0x7fff742cbff7  libcompiler_rt.dylib (63.4) <5212BA7B-B7EA-37B4-AF6E-AC4F507EDFB8> /usr/lib/system/libcompiler_rt.dylib
    0x7fff742cc000 -     0x7fff742d5ff7  libcopyfile.dylib (146.250.1) <98CD00CD-9B91-3B5C-A9DB-842638050FA8> /usr/lib/system/libcopyfile.dylib
    0x7fff742d6000 -     0x7fff7435afc3  libcorecrypto.dylib (602.260.2) <01464D24-570C-3B83-9D18-467769E0FCDD> /usr/lib/system/libcorecrypto.dylib
    0x7fff743e1000 -     0x7fff7441aff7  libdispatch.dylib (1008.270.1) <97273678-E94C-3C8C-89F6-2E2020F4B43B> /usr/lib/system/libdispatch.dylib
    0x7fff7441b000 -     0x7fff74447ff7  libdyld.dylib (655.1.1) <002418CC-AD11-3D10-865B-015591D24E6C> /usr/lib/system/libdyld.dylib
    0x7fff74448000 -     0x7fff74448ffb  libkeymgr.dylib (30) <0D0F9CA2-8D5A-3273-8723-59987B5827F2> /usr/lib/system/libkeymgr.dylib
    0x7fff74456000 -     0x7fff74456ff7  liblaunch.dylib (1336.261.2) <2B07E27E-D404-3E98-9D28-BCA641E5C479> /usr/lib/system/liblaunch.dylib
    0x7fff74457000 -     0x7fff7445cfff  libmacho.dylib (927.0.3) <A377D608-77AB-3F6E-90F0-B4F251A5C12F> /usr/lib/system/libmacho.dylib
    0x7fff7445d000 -     0x7fff7445fffb  libquarantine.dylib (86.220.1) <6D0BC770-7348-3608-9254-F7FFBD347634> /usr/lib/system/libquarantine.dylib
    0x7fff74460000 -     0x7fff74461ff7  libremovefile.dylib (45.200.2) <9FBEB2FF-EEBE-31BC-BCFC-C71F8D0E99B6> /usr/lib/system/libremovefile.dylib
    0x7fff74462000 -     0x7fff74479ff3  libsystem_asl.dylib (356.200.4) <A62A7249-38B8-33FA-9875-F1852590796C> /usr/lib/system/libsystem_asl.dylib
    0x7fff7447a000 -     0x7fff7447aff7  libsystem_blocks.dylib (73) <A453E8EE-860D-3CED-B5DC-BE54E9DB4348> /usr/lib/system/libsystem_blocks.dylib
    0x7fff7447b000 -     0x7fff74502fff  libsystem_c.dylib (1272.250.1) <7EDACF78-2FA3-35B8-B051-D70475A35117> /usr/lib/system/libsystem_c.dylib
    0x7fff74503000 -     0x7fff74506ffb  libsystem_configuration.dylib (963.270.3) <2B4A836D-68A4-33E6-8D48-CD4486B03387> /usr/lib/system/libsystem_configuration.dylib
    0x7fff74507000 -     0x7fff7450aff7  libsystem_coreservices.dylib (66) <719F75A4-74C5-3BA6-A09E-0C5A3E5889D7> /usr/lib/system/libsystem_coreservices.dylib
    0x7fff7450b000 -     0x7fff74511fff  libsystem_darwin.dylib (1272.250.1) <EC9B39A5-9592-3577-8997-7DC721D20D8C> /usr/lib/system/libsystem_darwin.dylib
    0x7fff74512000 -     0x7fff74518ff7  libsystem_dnssd.dylib (878.270.2) <E9A5ACCF-E35F-3909-AF0A-2A37CD217276> /usr/lib/system/libsystem_dnssd.dylib
    0x7fff74519000 -     0x7fff74564ffb  libsystem_info.dylib (517.200.9) <D09D5AE0-2FDC-3A6D-93EC-729F931B1457> /usr/lib/system/libsystem_info.dylib
    0x7fff74565000 -     0x7fff7458dff7  libsystem_kernel.dylib (4903.271.2) <EA204E3C-870B-30DD-B4AF-D1BB66420D14> /usr/lib/system/libsystem_kernel.dylib
    0x7fff7458e000 -     0x7fff745d9ff7  libsystem_m.dylib (3158.200.7) <F19B6DB7-014F-3820-831F-389CCDA06EF6> /usr/lib/system/libsystem_m.dylib
    0x7fff745da000 -     0x7fff74604fff  libsystem_malloc.dylib (166.270.1) <011F3AD0-8E6A-3A89-AE64-6E5F6840F30A> /usr/lib/system/libsystem_malloc.dylib
    0x7fff74605000 -     0x7fff7460fff7  libsystem_networkextension.dylib (767.250.2) <FF06F13A-AEFE-3A27-A073-910EF78AEA36> /usr/lib/system/libsystem_networkextension.dylib
    0x7fff74610000 -     0x7fff74617fff  libsystem_notify.dylib (172.200.21) <145B5CFC-CF73-33CE-BD3D-E8DDE268FFDE> /usr/lib/system/libsystem_notify.dylib
    0x7fff74618000 -     0x7fff74621fef  libsystem_platform.dylib (177.270.1) <9D1FE5E4-EB7D-3B3F-A8D1-A96D9CF1348C> /usr/lib/system/libsystem_platform.dylib
    0x7fff74622000 -     0x7fff7462cff7  libsystem_pthread.dylib (330.250.2) <2D5C08FF-484F-3D59-9132-CE1DCB3F76D7> /usr/lib/system/libsystem_pthread.dylib
    0x7fff7462d000 -     0x7fff74630ff7  libsystem_sandbox.dylib (851.270.1) <9494594B-5199-3186-82AB-5FF8BED6EE16> /usr/lib/system/libsystem_sandbox.dylib
    0x7fff74631000 -     0x7fff74633ff3  libsystem_secinit.dylib (30.260.2) <EF1EA47B-7B22-35E8-BD9B-F7003DCB96AE> /usr/lib/system/libsystem_secinit.dylib
    0x7fff74634000 -     0x7fff7463bff3  libsystem_symptoms.dylib (820.267.1) <03F1C2DD-0F5A-3D9D-88F6-B26C0F94EB52> /usr/lib/system/libsystem_symptoms.dylib
    0x7fff7463c000 -     0x7fff74651fff  libsystem_trace.dylib (906.260.1) <FC761C3B-5434-3A52-912D-F1B15FAA8EB2> /usr/lib/system/libsystem_trace.dylib
    0x7fff74653000 -     0x7fff74658ffb  libunwind.dylib (35.4) <24A97A67-F017-3CFC-B0D0-6BD0224B1336> /usr/lib/system/libunwind.dylib
    0x7fff74659000 -     0x7fff74688fff  libxpc.dylib (1336.261.2) <7DEE2300-6D8E-3C00-9C63-E3E80D56B0C4> /usr/lib/system/libxpc.dylib

External Modification Summary:
  Calls made by other processes targeting this process:
    task_for_pid: 1
    thread_create: 0
    thread_set_state: 0
  Calls made by this process:
    task_for_pid: 0
    thread_create: 0
    thread_set_state: 0
  Calls made by all processes on this machine:
    task_for_pid: 402898
    thread_create: 0
    thread_set_state: 9

VM Region Summary:
ReadOnly portion of Libraries: Total=238.2M resident=0K(0%) swapped_out_or_unallocated=238.2M(100%)
Writable regions: Total=174.0M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=174.0M(100%)
 
                                VIRTUAL   REGION 
REGION TYPE                        SIZE    COUNT (non-coalesced) 
===========                     =======  ======= 
Kernel Alloc Once                    8K        1 
MALLOC                           136.6M       15 
Stack                             67.1M       14 
VM_ALLOCATE                         12K        2 
__DATA                            3488K       44 
__LINKEDIT                       223.7M        3 
__TEXT                            14.5M       47 
shared memory                     1288K        5 
===========                     =======  ======= 
TOTAL                            446.5M      131 

  1736   15 Nov 2019 Konstantin OlchanskiBug ReportNewly installed MIDAS on OSX: mhttpd crahes
> It is reproducible alright.

Thanks. At first blush, a guess, read_passwords() is not thread-safe and is called from multiple threads, not protected by semaphore. Crash report shows 2 active threads 
(one made it is far as processing the mjson rpc, the other one crashed in read_passwords()).

K.O.


> Here are the core dump and the backtrace (I think  the former is more informative).
> 
> 
> 
> > > Context: out of the box  MIDAS (using cmake) on OSX Mojave. 
> > > 
> > > Running with mongoose/opensslm installation following instruction here:
> > > https://midas.triumf.ca/MidasWiki/index.php/Quickstart_Linux
> > > 
> > > mhttpd crashing when midas webpage opened with Safari (12.1.2). Usually when opening the "chat" tab but sometimes also with the "message" tab.
> > > mhttpd(11109,0x70000827a000) malloc: *** error for object 0x7f8669501ef0: pointer being freed was not allocated
> > > mhttpd(11109,0x70000827a000) malloc: *** set a breakpoint in malloc_error_break to debug
> > > 
> > > No crash if using firefox (70.0.1 (64-bit))
> > 
> > I think we also have reports of mhttpd crash on macos with safari from the Dragon experiment,
> > but cannot reproduce the problem.
> > 
> > If you can reproduce this, can you capture the crash stack trace?
> > 
> > One way to do this is to enable core dumps in odb "/expt/enable core dumps" set to "y", restart mhttpd,
> > wait for the crash. I think macos writes core dumps into /cores/... Or you can run mhttpd inside lldb
> > and wait for the crash. the lldb command to show the stack trace is "bt", but you may need
> > to switch to different threads to see which one actually crashed. I forget what the command
> > for that is.
> > 
> > BTW, the mhttpd networking code has not changed in a long time, but an update
> > of mongoose web server library is overdue (to fix a memory leak, at least).
> > 
> > K.O.
  1742   28 Nov 2019 Konstantin OlchanskiBug Reportmidas alarm sound unreliable in google-chrome
I accidentally discovered a problem with the alarm sounds played by midas.

The javascript code is very simple: var audio=new Audio("alarm.mp3"); audio.play();

In the past, this reliably played a sound.

More recently, I started seeing javascript log messages about "unhandled exception" from audio.play(). (for me, they often
interrupt my javascript debugger sessions, in a very annoying way).

Adding an exception handler to audio.play() was not effective: it turns out, these days, audio.play() returns a Promise
and one must handle the Promise rejection case. (also it turns out that in the rejection handler
one *must* clear audio.src to avoid problems with excessive memory and cpu use).

But why does audio.play() throw a rejected promise?!?

This is the error message provided: "play() failed because the user didn't interact with the document first. https://goo.gl/xX8pDD"
name: "NotAllowedError".

The link takes us to https://developers.google.com/web/updates/2017/09/autoplay-policy-changes. This web page seems to explain
everything neatly, but most of the information turns out to be wrong and unhelpful:

a) "Muted autoplay is always allowed" - wrong - I see audio.play() rejection from muted tabs
b) "User has interacted with the domain (click, tap, etc.)." - wrong - I see rejection in the javascript debugger even as I debug the web page
c) "user's Media Engagement Index threshold has been crossed" - broken - playback count and MEI is always 0 (zero) for midas - per chrome://media-engagement/
d) "user has added the site to their home screen on mobile or installed the PWA on desktop" - what ?!?
e) chrome://flags/#autoplay-policy does not exist (was removed)

There may be a way to start google-chrome with special flags to globally enable autoplay, but it seems
to be aimed at "kiosk" type applications, not for general use browsers:
https://stackoverflow.com/questions/57455849/chrome-autoplay-policy-chrome-76

The bottom line:

there is no way to ensure that the alarm sound will always play

K.O.

P.S. I am tracking this problem here:
https://bitbucket.org/tmidas/midas/issues/191/exception-on-audioplay
  1743   28 Nov 2019 Stefan RittBug Reportmidas alarm sound unreliable in google-chrome
The document

https://docs.google.com/document/d/1_278v_plodvgtXSgnEJ0yjZJLg14Ogf-ekAFNymAJoU/edit

says that the "... playback must be at lest 7 seconds long" to signal significant playback.

I attached a modified alarm sound file with 3 seconds of sound followed by 5 seconds of silence. Try that one and let me know if this changes anything. If successful, I can modify the 
other sound files as well.

Stefan
Attachment 1: beep.mp3
  1788   23 Jan 2020 Berta BeltranBug Reportget an open ssl error while trying to compile Midas
Hi all, 

I have a Mac with OS 10.13.6 and Xcode 10.1. I am following the instructions in the wiki to install Midas. 
I have installed openssl via MacPorts as per the instructions. But then I get an error related to open ssl 
when I try to compile Midas. See the results of cmake .. and make install 

Darrens-Mac-mini:build betacage$ cmake ..
-- MIDAS: cmake version: 3.16.3
-- MIDAS: CMAKE_INSTALL_PREFIX: /Users/betacage/packages/midas
-- MIDAS: Found ROOT version 6.18/04
-- MIDAS: Found ZLIB version 1.2.11
-- MIDAS: Found OpenSSL version 1.1.1d
-- MIDAS: MySQL not found
-- MIDAS: ODBC not found
-- MIDAS: Found SQLITE /usr/include/sqlite3.h
-- MIDAS: nvidia-smi not found
-- MIDAS example/experiment: MIDAS in-tree-build
-- MIDAS: Found ZLIB version 1.2.11
-- MIDAS example/experiment: Found ROOT version 6.18/04
-- Configuring done
-- Generating done
-- Build files have been written to: /Users/betacage/packages/midas/build
Darrens-Mac-mini:build betacage$ make install 
[  1%] Built target mfeo
[  3%] Built target mfe
[  4%] Built target rmana
[  5%] Built target manao
[  6%] Built target mana
[  6%] Built target git_revision_h
[ 30%] Built target objlib
[ 31%] Built target midas
[ 32%] Built target rmanao
[ 32%] Built target objlib-c-compat
[ 32%] Built target midas-c-compat
[ 33%] Built target midas-shared
[ 35%] Built target rmlogger
[ 36%] Linking CXX executable mhttpd
Undefined symbols for architecture x86_64:
  "_OPENSSL_init_ssl", referenced from:
      _mg_mgr_init in mongoose6.cxx.o
  "_SSL_CTX_set_options", referenced from:
      _mg_set_ssl in mongoose6.cxx.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [progs/mhttpd] Error 1
make[1]: *** [progs/CMakeFiles/mhttpd.dir/all] Error 2
make: *** [all] Error 2


I hope that this is the right forum to submit this kind of reports.
Any idea what do I have to do to continue ? Thanks is advance !

Berta 
  1789   23 Jan 2020 Konstantin OlchanskiBug Reportget an open ssl error while trying to compile Midas
Hi, yes, this is the right place to report problems and to ask questions about midas.

As for your trouble, I have the same macos 10.13.6, so we should be able to figure out what goes wrong.

Unfortunately, the posted instructions (to run cmake directly) hide all the information needed to debug build problems.

Instead of "cd build; cmake ..", please run "make cmake" and post the output. Printed should be all the compiler
and linker commands executed by the build. You can examine the mhttpd linker command to see if somehow
the wrong openssl library is being used.

If you do not need built-in https support in mhttpd, you can run "make cmake NO_SSL=1".

K.O.

> Hi all, 
> 
> I have a Mac with OS 10.13.6 and Xcode 10.1. I am following the instructions in the wiki to install Midas. 
> I have installed openssl via MacPorts as per the instructions. But then I get an error related to open ssl 
> when I try to compile Midas. See the results of cmake .. and make install 
> 
> Darrens-Mac-mini:build betacage$ cmake ..
> -- MIDAS: cmake version: 3.16.3
> -- MIDAS: CMAKE_INSTALL_PREFIX: /Users/betacage/packages/midas
> -- MIDAS: Found ROOT version 6.18/04
> -- MIDAS: Found ZLIB version 1.2.11
> -- MIDAS: Found OpenSSL version 1.1.1d
> -- MIDAS: MySQL not found
> -- MIDAS: ODBC not found
> -- MIDAS: Found SQLITE /usr/include/sqlite3.h
> -- MIDAS: nvidia-smi not found
> -- MIDAS example/experiment: MIDAS in-tree-build
> -- MIDAS: Found ZLIB version 1.2.11
> -- MIDAS example/experiment: Found ROOT version 6.18/04
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /Users/betacage/packages/midas/build
> Darrens-Mac-mini:build betacage$ make install 
> [  1%] Built target mfeo
> [  3%] Built target mfe
> [  4%] Built target rmana
> [  5%] Built target manao
> [  6%] Built target mana
> [  6%] Built target git_revision_h
> [ 30%] Built target objlib
> [ 31%] Built target midas
> [ 32%] Built target rmanao
> [ 32%] Built target objlib-c-compat
> [ 32%] Built target midas-c-compat
> [ 33%] Built target midas-shared
> [ 35%] Built target rmlogger
> [ 36%] Linking CXX executable mhttpd
> Undefined symbols for architecture x86_64:
>   "_OPENSSL_init_ssl", referenced from:
>       _mg_mgr_init in mongoose6.cxx.o
>   "_SSL_CTX_set_options", referenced from:
>       _mg_set_ssl in mongoose6.cxx.o
> ld: symbol(s) not found for architecture x86_64
> clang: error: linker command failed with exit code 1 (use -v to see invocation)
> make[2]: *** [progs/mhttpd] Error 1
> make[1]: *** [progs/CMakeFiles/mhttpd.dir/all] Error 2
> make: *** [all] Error 2
> 
> 
> I hope that this is the right forum to submit this kind of reports.
> Any idea what do I have to do to continue ? Thanks is advance !
> 
> Berta 
  1790   23 Jan 2020 Stefan RittBug Reportget an open ssl error while trying to compile Midas
I tried on my Mac (macOS 10.14.6, Xcode 11.3.1, current develop branch, openssl 1.1.1d) and it woks fine. Below is the transcript. I 
see that your cmake output is much shorter (no C compiler listed etc.). Did you remove some lines? For such comparisons, it's 
always good to start with an empty build directory.

OpenSSL libraries are the same (1.1.1d). Just for comparison, I run the build process with "make VERBOSE=1" and extract the line 
which fails for you when linking mhttp, so maybe you can compare.

Linking mhttpd
---------------

/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++  -O2 -g -DNDEBUG -isysroot 
/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -mmacosx-version-
min=10.14 -Wl,-search_paths_first -Wl,-headerpad_max_install_names  CMakeFiles/mhttpd.dir/mhttpd.cxx.o 
CMakeFiles/mhttpd.dir/mongoose6.cxx.o CMakeFiles/mhttpd.dir/mgd.cxx.o CMakeFiles/mhttpd.dir/__/mscb/src/mscb.cxx.o  -o 
mhttpd  -L/opt/local/lib/mysql57/mysql -lmysqlclient -lz ../libmidas.a /opt/local/lib/libssl.dylib /opt/local/lib/libcrypto.dylib -lz -
L/opt/local/lib/mysql57/mysql -lmysqlclient -lz 


Here is the full transcript
-------------------------

/midas/build$ cmake ..
-- MIDAS: cmake version: 3.16.3
-- The C compiler identification is AppleClang 11.0.0.11000033
-- The CXX compiler identification is AppleClang 11.0.0.11000033
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- 
works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: 
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
-- Check for working CXX compiler: 
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- MIDAS: CMAKE_INSTALL_PREFIX: /midas
-- MIDAS: Found ROOT version 6.16/00
-- Found ZLIB: /opt/local/lib/libz.dylib (found version "1.2.11") 
-- MIDAS: Found ZLIB version 1.2.11
-- Found OpenSSL: /opt/local/lib/libcrypto.dylib (found version "1.1.1d")  
-- MIDAS: Found OpenSSL version 1.1.1d
-- MIDAS: Found MySQL version 5.7.26
-- MIDAS: ODBC not found
-- MIDAS: SQLITE not found
-- MIDAS: nvidia-smi not found
-- Setting default build type to "RelWithDebInfo"
-- Found Git: /usr/bin/git (found version "2.21.1 (Apple Git-122.3)") 
-- MIDAS example/experiment: MIDAS in-tree-build
-- MIDAS: Found ZLIB version 1.2.11
-- MIDAS example/experiment: Found ROOT version 6.16/00
-- Configuring done
-- Generating done
-- Build files have been written to: /midas/build
/midas/build$ make
Scanning dependencies of target rmana
Scanning dependencies of target git_revision_h
Scanning dependencies of target mfe
Scanning dependencies of target manao
Scanning dependencies of target mfeo
Scanning dependencies of target objlib-c-compat
Scanning dependencies of target mana
Scanning dependencies of target rmanao
[  0%] Building CXX object CMakeFiles/objlib-c-compat.dir/src/midas_c_compat.cxx.o
[  2%] Building CXX object CMakeFiles/mfe.dir/src/mfe.cxx.o
[  2%] Building CXX object CMakeFiles/mfeo.dir/src/mfe.cxx.o
[  3%] Building CXX object CMakeFiles/mana.dir/src/mana.cxx.o
[  4%] Building CXX object CMakeFiles/manao.dir/src/mana.cxx.o
[  5%] Building CXX object CMakeFiles/rmanao.dir/src/mana.cxx.o
[  6%] Building CXX object CMakeFiles/rmana.dir/src/mana.cxx.o
[  6%] Built target git_revision_h
Scanning dependencies of target objlib
[  7%] Building CXX object CMakeFiles/objlib.dir/src/midas.cxx.o
[  7%] Built target objlib-c-compat
[  8%] Building CXX object CMakeFiles/objlib.dir/src/midas_cxx.cxx.o
[  8%] Linking CXX static library libmana.a
[  8%] Built target manao
[  8%] Building CXX object CMakeFiles/objlib.dir/src/odb.cxx.o
[  8%] Built target mana
[  9%] Building CXX object CMakeFiles/objlib.dir/src/device_driver.cxx.o
[  9%] Built target mfeo
[ 10%] Linking CXX static library libmfe.a
[ 11%] Building CXX object CMakeFiles/objlib.dir/src/system.cxx.o
[ 11%] Built target mfe
[ 11%] Building CXX object CMakeFiles/objlib.dir/src/alarm.cxx.o
[ 12%] Building CXX object CMakeFiles/objlib.dir/src/elog.cxx.o
[ 13%] Building CXX object CMakeFiles/objlib.dir/src/mrpc.cxx.o
[ 13%] Building CXX object CMakeFiles/objlib.dir/src/mjson.cxx.o
[ 14%] Building CXX object CMakeFiles/objlib.dir/src/tmfe.cxx.o
[ 15%] Building CXX object CMakeFiles/objlib.dir/src/mvodb.cxx.o
[ 15%] Built target rmanao
[ 15%] Linking CXX static library librmana.a
[ 16%] Building CXX object CMakeFiles/objlib.dir/src/nullodb.cxx.o
[ 16%] Building CXX object CMakeFiles/objlib.dir/src/midasodb.cxx.o
[ 16%] Built target rmana
[ 17%] Building CXX object CMakeFiles/objlib.dir/src/mxmlodb.cxx.o
[ 18%] Building CXX object CMakeFiles/objlib.dir/src/mjsonodb.cxx.o
[ 18%] Building CXX object CMakeFiles/objlib.dir/src/json_paste.cxx.o
[ 19%] Building CXX object CMakeFiles/objlib.dir/src/mjsonrpc.cxx.o
[ 20%] Building CXX object CMakeFiles/objlib.dir/src/mjsonrpc_user.cxx.o
[ 21%] Building CXX object CMakeFiles/objlib.dir/src/history.cxx.o
[ 21%] Building CXX object CMakeFiles/objlib.dir/src/history_common.cxx.o
[ 22%] Building CXX object CMakeFiles/objlib.dir/src/history_odbc.cxx.o
[ 23%] Building CXX object CMakeFiles/objlib.dir/src/history_schema.cxx.o
[ 23%] Building CXX object CMakeFiles/objlib.dir/src/lz4.cxx.o
[ 24%] Building CXX object CMakeFiles/objlib.dir/src/lz4frame.cxx.o
[ 25%] Building CXX object CMakeFiles/objlib.dir/src/lz4hc.cxx.o
[ 26%] Building CXX object CMakeFiles/objlib.dir/src/xxhash.cxx.o
[ 26%] Building CXX object CMakeFiles/objlib.dir/src/crc32c.cxx.o
[ 27%] Building CXX object CMakeFiles/objlib.dir/src/sha256.cxx.o
[ 28%] Building CXX object CMakeFiles/objlib.dir/src/sha512.cxx.o
[ 28%] Building CXX object CMakeFiles/objlib.dir/src/ftplib.cxx.o
[ 29%] Building CXX object CMakeFiles/objlib.dir/src/mdsupport.cxx.o
[ 30%] Building CXX object CMakeFiles/objlib.dir/mxml/mxml.cxx.o
[ 31%] Building CXX object CMakeFiles/objlib.dir/mxml/strlcpy.cxx.o
[ 31%] Built target objlib
Scanning dependencies of target midas-shared
Scanning dependencies of target midas
[ 33%] Linking CXX shared library libmidas-shared.dylib
[ 33%] Linking CXX static library libmidas.a
[ 33%] Built target midas-shared
[ 33%] Built target midas
Scanning dependencies of target mhttpd
Scanning dependencies of target feudp
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Scanning dependencies of target rmlogger
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[ 33%] Building CXX object progs/CMakeFiles/mfe_link_test.dir/mfe_link_test.cxx.o
[ 33%] Linking CXX shared library libmidas-c-compat.dylib
[ 34%] Building CXX object progs/CMakeFiles/feudp.dir/feudp.cxx.o
[ 35%] Building CXX object progs/CMakeFiles/msysmon.dir/msysmon.cxx.o
[ 36%] Building CXX object progs/CMakeFiles/mchart.dir/mchart.cxx.o
[ 37%] Building CXX object progs/CMakeFiles/odb_lock_test.dir/odb_lock_test.cxx.o
[ 38%] Building CXX object progs/CMakeFiles/rmlogger.dir/mlogger.cxx.o
[ 39%] Building CXX object progs/CMakeFiles/mhttpd.dir/mhttpd.cxx.o
[ 39%] Built target midas-c-compat
[ 40%] Building CXX object progs/CMakeFiles/mhttpd.dir/mongoose6.cxx.o
[ 41%] Linking CXX executable mfe_link_test
[ 42%] Linking CXX executable odb_lock_test
[ 42%] Built target mfe_link_test
Scanning dependencies of target mjson_test
[ 43%] Building CXX object progs/CMakeFiles/mjson_test.dir/mjson_test.cxx.o
[ 43%] Linking CXX executable mchart
[ 43%] Built target odb_lock_test
Scanning dependencies of target odbinit
[ 44%] Building CXX object progs/CMakeFiles/odbinit.dir/odbinit.cxx.o
[ 45%] Linking CXX executable feudp
[ 45%] Built target mchart
[ 46%] Building CXX object progs/CMakeFiles/mhttpd.dir/mgd.cxx.o
[ 46%] Built target feudp
[ 46%] Building CXX object progs/CMakeFiles/mhttpd.dir/__/mscb/src/mscb.cxx.o
[ 47%] Linking CXX executable mjson_test
[ 47%] Built target mjson_test
Scanning dependencies of target fetest_tmfe_thread
[ 47%] Building CXX object progs/CMakeFiles/fetest_tmfe_thread.dir/fetest_tmfe_thread.cxx.o
[ 47%] Linking CXX executable msysmon
[ 47%] Built target msysmon
[ 48%] Linking CXX executable odbinit
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[ 49%] Building CXX object progs/CMakeFiles/fetest_tmfe.dir/fetest_tmfe.cxx.o
[ 49%] Built target odbinit
[ 50%] Linking CXX executable fetest_tmfe_thread
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[ 51%] Building CXX object progs/CMakeFiles/mh2sql.dir/mh2sql.cxx.o
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[ 51%] Building CXX object progs/CMakeFiles/odbhist.dir/odbhist.cxx.o
[ 51%] Built target fetest_tmfe_thread
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[ 51%] Building CXX object progs/CMakeFiles/melog.dir/melog.cxx.o
[ 52%] Linking CXX executable odbhist
[ 53%] Built target odbhist
[ 53%] Linking CXX executable melog
[ 54%] Linking CXX executable fetest_tmfe
Scanning dependencies of target mfe_link_test_cxx
[ 55%] Building CXX object progs/CMakeFiles/mfe_link_test_cxx.dir/mfe_link_test_cxx.cxx.o
[ 55%] Built target melog
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[ 57%] Linking CXX executable crc32c_sum
[ 58%] Linking CXX executable mh2sql
[ 58%] Built target crc32c_sum
[ 59%] Building CXX object progs/CMakeFiles/odbedit.dir/cmdedit.cxx.o
[ 59%] Linking CXX executable mfe_link_test_cxx
Scanning dependencies of target mdump
[ 59%] Built target mh2sql
Scanning dependencies of target mhdump
[ 60%] Building CXX object progs/CMakeFiles/mdump.dir/mdump.cxx.o
[ 60%] Building CXX object progs/CMakeFiles/mhdump.dir/mhdump.cxx.o
[ 60%] Built target mfe_link_test_cxx
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[ 61%] Building CXX object progs/CMakeFiles/lazylogger.dir/lazylogger.cxx.o
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[ 61%] Building CXX object progs/CMakeFiles/mtransition.dir/mtransition.cxx.o
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[ 82%] Built target analyzer
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[ 83%] Built target mtfe
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[ 94%] Built target mlogger
Scanning dependencies of target produce
[ 94%] Built target rpc_test
[ 94%] Building CXX object examples/lowlevel/CMakeFiles/produce.dir/produce.cxx.o
[ 95%] Building CXX object examples/slowcont/CMakeFiles/scfe.dir/__/__/mscb/src/mscb.cxx.o
[ 96%] Linking CXX executable msequencer
[ 96%] Built target msequencer
[ 96%] Linking CXX executable consume
[ 96%] Built target consume
[ 97%] Linking CXX executable produce
[ 97%] Built target produce
[ 98%] Linking CXX executable mscb_fe
[ 98%] Built target mscb_fe
[ 99%] Linking CXX executable scfe
[ 99%] Built target scfe
[100%] Linking CXX executable mhttpd
[100%] Built target mhttpd
/midas/build$ 
  Draft   26 Jan 2020 Konstantin OlchanskiBug Reportrequest to ease debugging build problems
Request:

Please use "make cmake" ("make cmake3") to report build problems.

cmake with VERBOSE=1 prints way too much stuff and I find it is impossible to use.

"make cmake" filters out all the gunk to make it easy to see the relevant information:
- the compiler command lines (CFLAGS, library paths, etc)
- the compiler output (error messages, etc).

The best I can tell, cmake "VERBOSE=1" in only useful for cmake developers to debug cmake itself.

K.O.

> I tried on my Mac (macOS 10.14.6, Xcode 11.3.1, current develop branch, openssl 1.1.1d) and it woks fine. Below is the transcript. I 
> see that your cmake output is much shorter (no C compiler listed etc.). Did you remove some lines? For such comparisons, it's 
> always good to start with an empty build directory.
> 
> OpenSSL libraries are the same (1.1.1d). Just for comparison, I run the build process with "make VERBOSE=1" and extract the line 
> which fails for you when linking mhttp, so maybe you can compare.
> 
> Linking mhttpd
> ---------------
> 
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++  -O2 -g -DNDEBUG -isysroot 
> /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.15.sdk -mmacosx-version-
> min=10.14 -Wl,-search_paths_first -Wl,-headerpad_max_install_names  CMakeFiles/mhttpd.dir/mhttpd.cxx.o 
> CMakeFiles/mhttpd.dir/mongoose6.cxx.o CMakeFiles/mhttpd.dir/mgd.cxx.o CMakeFiles/mhttpd.dir/__/mscb/src/mscb.cxx.o  -o 
> mhttpd  -L/opt/local/lib/mysql57/mysql -lmysqlclient -lz ../libmidas.a /opt/local/lib/libssl.dylib /opt/local/lib/libcrypto.dylib -lz -
> L/opt/local/lib/mysql57/mysql -lmysqlclient -lz 
> 
> 
> Here is the full transcript
> -------------------------
> 
> /midas/build$ cmake ..
> -- MIDAS: cmake version: 3.16.3
> -- The C compiler identification is AppleClang 11.0.0.11000033
> -- The CXX compiler identification is AppleClang 11.0.0.11000033
> -- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
> -- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- 
> works
> -- Detecting C compiler ABI info
> -- Detecting C compiler ABI info - done
> -- Detecting C compile features
> -- Detecting C compile features - done
> -- Check for working CXX compiler: 
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
> -- Check for working CXX compiler: 
> /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- works
> -- Detecting CXX compiler ABI info
> -- Detecting CXX compiler ABI info - done
> -- Detecting CXX compile features
> -- Detecting CXX compile features - done
> -- MIDAS: CMAKE_INSTALL_PREFIX: /midas
> -- MIDAS: Found ROOT version 6.16/00
> -- Found ZLIB: /opt/local/lib/libz.dylib (found version "1.2.11") 
> -- MIDAS: Found ZLIB version 1.2.11
> -- Found OpenSSL: /opt/local/lib/libcrypto.dylib (found version "1.1.1d")  
> -- MIDAS: Found OpenSSL version 1.1.1d
> -- MIDAS: Found MySQL version 5.7.26
> -- MIDAS: ODBC not found
> -- MIDAS: SQLITE not found
> -- MIDAS: nvidia-smi not found
> -- Setting default build type to "RelWithDebInfo"
> -- Found Git: /usr/bin/git (found version "2.21.1 (Apple Git-122.3)") 
> -- MIDAS example/experiment: MIDAS in-tree-build
> -- MIDAS: Found ZLIB version 1.2.11
> -- MIDAS example/experiment: Found ROOT version 6.16/00
> -- Configuring done
> -- Generating done
> -- Build files have been written to: /midas/build
> /midas/build$ make
> Scanning dependencies of target rmana
> Scanning dependencies of target git_revision_h
> Scanning dependencies of target mfe
> Scanning dependencies of target manao
> Scanning dependencies of target mfeo
> Scanning dependencies of target objlib-c-compat
> Scanning dependencies of target mana
> Scanning dependencies of target rmanao
> [  0%] Building CXX object CMakeFiles/objlib-c-compat.dir/src/midas_c_compat.cxx.o
> [  2%] Building CXX object CMakeFiles/mfe.dir/src/mfe.cxx.o
> [  2%] Building CXX object CMakeFiles/mfeo.dir/src/mfe.cxx.o
> [  3%] Building CXX object CMakeFiles/mana.dir/src/mana.cxx.o
> [  4%] Building CXX object CMakeFiles/manao.dir/src/mana.cxx.o
> [  5%] Building CXX object CMakeFiles/rmanao.dir/src/mana.cxx.o
> [  6%] Building CXX object CMakeFiles/rmana.dir/src/mana.cxx.o
> [  6%] Built target git_revision_h
> Scanning dependencies of target objlib
> [  7%] Building CXX object CMakeFiles/objlib.dir/src/midas.cxx.o
> [  7%] Built target objlib-c-compat
> [  8%] Building CXX object CMakeFiles/objlib.dir/src/midas_cxx.cxx.o
> [  8%] Linking CXX static library libmana.a
> [  8%] Built target manao
> [  8%] Building CXX object CMakeFiles/objlib.dir/src/odb.cxx.o
> [  8%] Built target mana
> [  9%] Building CXX object CMakeFiles/objlib.dir/src/device_driver.cxx.o
> [  9%] Built target mfeo
> [ 10%] Linking CXX static library libmfe.a
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> /midas/build$ 
  1792   26 Jan 2020 Konstantin OlchanskiBug Reportget an open ssl error while trying to compile Midas
>
> .../c++  ...  /opt/local/lib/libssl.dylib
>

I get the same, libssl from /opt/local, so we are not using openssl shipped with mac os.

We still do not know were OP's libssl comes from and if there is a mismatch between
openssl header files and library (header files from one openssl, library from a different openssl).

OP's cmake output: (no VERBOSE=1)
> -- MIDAS: cmake version: 3.16.3
> -- MIDAS: Found OpenSSL version 1.1.1d

Stefan's and my cmake output: (VERBOSE=1)
> -- MIDAS: cmake version: 3.16.3
> -- Found OpenSSL: /opt/local/lib/libcrypto.dylib (found version "1.1.1d")  
> -- MIDAS: Found OpenSSL version 1.1.1d

Without VERBOSE=1 cmake does not tell is which OpenSSL it found (not useful).
With VERBOSE=1 cmake outputs a flood of gunk (not useful).

My solution is to filter the cmake output with grep in "make cmake" ("make cmake3").

So please use that: "make cmake" - the output is roughly the same as normal make - compiler command lines (CFLAGS, library paths, etc),
compiler error message and all of the useful cmake output.

K.O.
  1793   26 Jan 2020 Konstantin OlchanskiBug Reportsupport for mbedtls - get an open ssl error while trying to compile Midas
> >
> > .../c++  ...  /opt/local/lib/libssl.dylib
> >
> 
> I get the same, libssl from /opt/local, so we are not using openssl shipped with mac os.
> 

I note that latest mongoose 6.16 finally has a virtual ssl layer and appears to support mbedtls (polarssl) in addition to openssl.

I now think I should see if it works - as it gives us a way to support https without relying on the user having
pre-installed working openssl packages - we consistently run into problems with openssl on macos, and even
on linux there was trouble with preinstalled openssl packages and libraries.

With mbedtls, one will have to "git pull" and "make" it, but historically this causes much less trouble.

Also, with luck, mbedtls has better support for certificate expiration (I would really love to have openssl report an error
or a warning or at least some hint if I feed it an expired certificate) and (gasp!) certbot integration.

K.O.
  1794   26 Jan 2020 Konstantin OlchanskiBug Reportsupport for mbedtls - get an open ssl error while trying to compile Midas
> ... support for certbot

The certbot tool to use instead of certbot is this: https://github.com/ndilieto/uacme

K.O.
ELOG V3.1.4-2e1708b5