 07 May 2006, Konstantin Olchanski, Bug Report, cm_register_transition gyrations
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I am debugging a Rome-based DAQ system setup by Pierre A. (the system does not
work because of bugs in Rome).
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11 May 2006, Konstantin Olchanski, Bug Report, MIDAS and Fedora 4
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Fellow Midasites- we are receiving reports that current Midas sources do not compile on Fedora 4 (and 5?)
with errors "invalid lvalue in assignment". It looks like the new compilers reject what looks to my eye like
perfectly valid C code that we have been writing since the beginning of C. Any suggestions on the best fix?
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18 May 2006, Konstantin Olchanski, Bug Fix, removed a few "//" comments to fix compilation on VxWorks
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Our VxWorks C compiler (gcc-2.8-something) does not like the "//" comments. Luckily, on VxWorks, we
only compile a small subset of midas, so there is no point in banning all "//" comments. But I did have to
convert a couple of them to /* commens */ in odb.c to make it compile. Changes to odb.c commited. K.O. |
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25 May 2006, Konstantin Olchanski, Bug Fix, fix crash in xml odb load
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There is a crash in odbedit when loading some xml odb files: a missing check for NULL pointer when
loading an array of strings and one of the array elements is blank. This check is present when loading
other string values. Here is the diff:
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30 May 2006, Konstantin Olchanski, Bug Report, badness with vxworks/ppc
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It appears that the latest version of MIDAS malfunctions on PowerPC/VxWorks
machines, below are two problem reports. As reported, previous versions of MIDAS
work fine, I guess that reduces the probability of it being buggy user code. At
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31 May 2006, Konstantin Olchanski, Bug Fix, mhist could not look at array data
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When using mhist interactively, I could not look at array data:
1) if the array is the only variable, the question "what array index to use?"
was not asked, zero was assumed,
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08 Jun 2006, Konstantin Olchanski, Bug Fix, fix compilation of musbstd.h, add it back to libmidas
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I fixed the compilation of musbstd.h (it required -DHAVE_LIBUSB on Linux, but
nothing knew about defining it) and put musbstd.o back into libmidas (USB
support should be part of the standard base midas library). K.O. |
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08 Jun 2006, Konstantin Olchanski, Bug Fix, commit latest ccusb.c CAMAC-USB driver
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I commited the latest driver for the Wiener CCUSB USB-CAMAC driver. It
implements all functions from mcstd.h and has been tested to be plug-compatible
with at least one of our CAMAC frontends. K.O. |
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08 Jun 2006, Konstantin Olchanski, Bug Fix, updated vmicvme driver
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I commited the latest VMIC VME driver we use at TRIUMF. It has working support
for D32 and D64 DMA and can move data from the SIS3820 multiscaler through the
MIDAS frontend at > 30 Mbytes/sec on our VMICVME-7805 machines. The actual DMA
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08 Jun 2006, Konstantin Olchanski, Bug Report, Midas does not build on Fedora 5
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Fresh svn checkout of MIDAS does not build on Fedora 5, I get this error:
cc -c -g -O2 -Wall -Wuninitialized -Iinclude -Idrivers -I../mxml -Llinux/lib
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25 Jul 2006, Konstantin Olchanski, Bug Report, mhttpd passwords broken for MacOS 10.4 Safari
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I observe that the mhttpd passwords do not work correctly for the Safari web browser on MacOS 10.4.7:
Safari 2.0.4 (419.3). For example, I cannot submit elog messages- the system gets stuck on the
"Password" page. The Safari browser in MacOS 10.3 works fine. Mozilla/Firefox works fine. (Also would be
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28 Jul 2006, Konstantin Olchanski, Bug Fix, mhttpd: use more strlcpy(), fix a few bugs
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While investigating the mhttpd password error with the MacOS Safari browser, I
found that it was caused by an strcpy() buffer overflow. With Stefan's blessing,
I now converted most uses of strcpy() and strcat() to strlcpy() and strlcat().
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31 Jul 2006, Konstantin Olchanski, Bug Fix, Fix user memory corruption in ODB
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We have been seeing consistent user memory corruption while setting up a new
experiment. This has been traced to a user memory overwrite in ODB db_set_data()
function and this problem is now fixed. This error was triggered by our frontend
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01 Aug 2006, Konstantin Olchanski, Bug Fix, User-tunable buffer sizes
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By default, MIDAS creates shared memory event data buffers of default size
EVENT_BUFFER_SIZE defined in midas.h and until now making of large data buffers
for high data rate or large event size experiments was complicated.
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07 Aug 2006, Konstantin Olchanski, Bug Fix, Refactoring and rewrite of event buffer code
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In close cooperation with Stefan, I refactored and rewrote the MIDAS event
buffering code (bm_send_event, bm_flush_cache, bm_receive_event and bm_push_event).
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07 Aug 2006, Konstantin Olchanski, Bug Fix, Fix crash in mfe.c
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Some time ago, I accidentally introduced a bug in mfe.c- if there is data
congestion in the system, mfe.c can exit with the error "bm_flush_cache(ASYNC)
error 209" because it did not expect the valid return value BM_ASYNC_RETURN
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 09 Aug 2006, Konstantin Olchanski, Bug Fix, Refactoring and rewrite of event buffer code
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> In close cooperation with Stefan, I refactored and rewrote the MIDAS event
> buffering code (bm_send_event, bm_flush_cache, bm_receive_event and bm_push_event).
>
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17 Aug 2006, Konstantin Olchanski, Bug Report, "double" values are truncated
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The mhttpd ODB displays and mhist truncate values of "float" and "double"
floating point variables to 6 digits. In reality, "float" has 7 significant
digits and "double" has 16. I recommend that db_sprintf() in odb.c be changed to
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19 Aug 2006, Konstantin Olchanski, Bug Fix, fixes for minor mhttpd problems
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I commited fix for minor mhttpd problems (rev 3314):
- for a newly created experiment, the "history" button gave the error [history
panel "" does not exist] (new problem introduced in revision 3150)
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26 Aug 2006, Konstantin Olchanski, Bug Fix, fixes for minor mhttpd problems
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> I commited fix for minor mhttpd problems (rev 3314):
> - elog attachments did not work for file names containing character plus (+)
> (attachement URLs should be properly encoded to escape special CGI characters)
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