 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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04 Sep 2006, Konstantin Olchanski, Bug Fix, Fix MIDAS on MacOS 10.4.7
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I commited minor fixes for building MIDAS on MacOS 10.4.7:
1) there is no linux/unistd.h
2) gcc 4.0.0 does not like "struct { ... } var;" although "struct Foo { ... } var;" is fine
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05 Sep 2006, Konstantin Olchanski, Forum, Forums moved from dasdevpc.triumf.ca to ladd00.triumf.ca
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For the record, the MIDAS (& co) forums have been physically moved from
dasdevpc.triumf.ca to our new server machine ladd00.triumf.ca. This change
should be transparent to all users, but if anything stops working, please let me
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23 Sep 2006, Konstantin Olchanski, Bug Report, mhttpd elog corruption via double-edit
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Aparently the mhttpd elog will corrupt the elog files if two (or more?) elog entries are being edited at the
same time. K.O. |
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23 Sep 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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27 Sep 2006, Konstantin Olchanski, Bug Report, mhttpd elog corruption via double-edit
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[quote="Stefan Ritt"][Quote="K.O.]Aparently the mhttpd elog will corrupt the
elog files if two (or more\?) elog entries are being edited at the same time.
K.O.[/quote]
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27 Sep 2006, Konstantin Olchanski, Suggestion, Increase of maximum event size
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> The current event size in midas is limited to 512k (MAX_EVENT_SIZE in midas.h)
Yes, 512 kBytes is rather small. For the T2K prototype TPC DAQ, I built and ran
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22 Jan 2007, Konstantin Olchanski, Forum, Midas on a x86_64
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> has anyone managed to get midas to work on a x86_64 processor. I followed the
> instructions for the 64-bit opteron but i am getting runtime error when trying
> the examples.
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05 Feb 2007, Konstantin Olchanski, Bug Report, wrong version in include/midas.h?
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The present .../include/midas.h contains
[alpha@laddvme06 ~/online]$ grep 1.9.5 /home/alpha/packages/midas/include/*
/home/alpha/packages/midas/include/midas.h:#define MIDAS_VERSION "1.9.5"
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