 14 Dec 2004, Konstantin Olchanski, Forum, use of assert in mhttpd
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> We've had mhttpd aborting regularly since upgrading from midas-1.9.3. This
> happens during elog queries, and is due to an elog file that was incorrectly
> modified by hand.
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 14 Dec 2004, Konstantin Olchanski, Info, Commit local TWIST modifications
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I am commiting MIDAS modification accumulated during the last few months of running TWIST:
1) system.c::ss_shm_open() fail if trying to map a file that is smaller than we expect.
2) midas.c::bm_lock_buffer(), el_submit(), el_delete_message(): do not wait for mutexes forever, use a 5
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14 Dec 2004, Konstantin Olchanski, Info, Commit local TWIST modifications
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> I am commiting MIDAS modification accumulated during the last few months of running TWIST:
More:
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14 Dec 2004, Konstantin Olchanski, Info, mhttpd: Commit local TWIST modifications
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> > I am commiting MIDAS modification accumulated...
mhttpd changes:
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16 Dec 2004, Konstantin Olchanski, Info, "cd /" in ss_daemon_init(), was- Commit local TWIST modifications
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> > - system.c: do not chdir("/") in ss_daemon_init()- it prevents us from ever
> > getting core dumps from midas daemons.
>
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20 Jan 2005, Konstantin Olchanski, Suggestion, HOWTO create ROOT objects in the MIDAS analyzer
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With recent changes to mana.c, creation of user ROOT objects in the MIDAS
analyser has changed. Here is the new example code for creating ROOT objects
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20 Jan 2005, Konstantin Olchanski, Bug Report, Persistency problem with h1_book() & co
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The current h1_book() macros (and the previous example analyzer code) have an
odd persistency problem: for example, the user wants to change some histogram
limits, edits the h1_book() calls, rebuilds and restarts the analyzer, starts a
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25 Feb 2005, Konstantin Olchanski, Bug Fix, fixed: double free in FORMAT_MIDAS ybos.c causing lazylogger crashes
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We stumbled upon and fixed a "double free" bug in src/ybos.c causing crashes in
lazylogger writing .mid files in the FORMAT_MIDAS format (why does it use
ybos.c? Pierre says- for generic file i/o). Why this code had ever worked before
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31 Mar 2005, Konstantin Olchanski, Info, ODB dump format switched to XML
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> > All the XML functionality is implemented in the new mxml.c/h library
>
> mxml.c/h ... I separated it's CVS tree.
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21 Apr 2005, Konstantin Olchanski, Bug Report, pointers and segfault in yb_any_file_rclose
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> I'm getting segfaults in yb_any_file_rclose (closing a file opened with
> yb_any_file_ropen with type MIDAS).
>
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21 Apr 2005, Konstantin Olchanski, Suggestion, Correct MIDASSYS setting?
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Current MIDAS versions nag me about setting the env.variable MIDASSYS to the
"midas installation directory", but I do not have one, so what should I set
MIDASSYS to? I checkout MIDAS from cvs into /home/olchansk/daq/midas, build it
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05 May 2005, Konstantin Olchanski, Bug Fix, fix: minor bit rot in the example experiment
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I fixed some minor bit rot in the example experiment: a few minor Makefile
problems, make the analyzer use the current histogram creation macros, etc. I
also added startup and shutdown scripts. These will be documented as we work
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02 Aug 2005, Konstantin Olchanski, Bug Fix, fix odb corruption when running analzer for the first time
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I have been plagued by ODB corruption when I run the analyzer for the first time
after setting up the new experiment. Some time ago, I traced this to
mana.c::book_ttree() and now I found and fixed the bug, fix now commited to
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18 Aug 2005, Konstantin Olchanski, Info, midas Makefile changes
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Minor Makefile changes:
- add "-m32" gcc flag to force 32-bit compilation on 64-bit Linux.
- do not link ybos.o into lazylogger and mdump.
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18 Aug 2005, Konstantin Olchanski, Info, CAMAC register_cnaf_callback()
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Some time ago, the "remote CAMAC" functionality in mfe.c was made conditional on
HAVE_CAMAC. This flag is not set by default so remote camac calls silently do
not work, unless midas is compiled in a special way. I am too lazy to compile
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18 Aug 2005, Konstantin Olchanski, Info, minor changes to run transition code
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Minor changes to run transitions code:
- improve debug messages
- fail transition if cannot connect to one of the clients
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18 Aug 2005, Konstantin Olchanski, Bug Fix, fix race condition between clients on run start/stop, pause/resume
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It turns out that the new priority sequencing of run state transitions had a
flaw: the frontends, the analyzer and the logger all registered at priority 500
and were invoked in essentially a random order. For example the frontend could
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23 Aug 2005, Konstantin Olchanski, Info, new mvmestd api
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For some time now, we have been thinking of updating the programming interface
for the VME bus interface drivers- mvmestd.h.
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10 Sep 2005, Konstantin Olchanski, Info, new mvmestd api
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> Good that you brought up the MIDAS VME API again, since this is still not complete, but
> has to be completed soon.
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19 Sep 2005, Konstantin Olchanski, Info, Added driver for the Wiener CC-USB CAMAC interface
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Commited to CVS is the preliminary driver for the Wiener CC-USB CAMAC interface.
The driver implements all the mcstd.h camac access functions, except for those
not supported by hardware (8-bit operations, interrupts) and a few esoteric
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