>06/13/2004 20:12:07 B/A Txn Producer thread, fatal error, signal 11
>06/13/2004 23:04:40 B/A Txn Producer thread, fatal error, signal 11
>
>Can anyone give me a clue what/where to look for, on these errors ?
>
>TSM Linux 5.2.2.6 client. RH 8 2.4.18-27 kernel.
>
>FWIW, I saw an old message in the archives, with a similar problem, to
>which Richard replied with:
>
>"check the Unix Resource Limits under which that Linux client runs"
>
>but I don't know what that means or how to check it !
Now, now, you can always do a web search on topics like "resource limits". :-)
Resource Limits are a basic reasonable usage control mechanism in Unix systems.
Here are my notes, which may help:
Unix Resource Limits Unix systems observe resource limit
settings, to prevent runaway usage which
may be detrimental to the system and
other users sharing it. In AIX, resource
limits are globally defined in the
/etc/security/limits file.
By default, the root user is unlimited.
At the system level, resource limits are
controlled via the setrlimit() system
call, per RLIMIT_* subject function
values defined in
/usr/include/sys/resource.h:
RLIMIT_CPU CPU time in milliseconds
RLIMIT_FSIZE Maximum file size
RLIMIT_DATA Data size
RLIMIT_STACK Stack size
RLIMIT_CORE Core file size
RLIMIT_RSS Resident set size
RLIMIT_AS Process max total memory
RLIMIT_NOFILE Max file descriptors
At the user level, these areas are
adjusted via the Cshell 'limit' and
'unlimit' csh commands. (Do 'limit' to
see your current values.)
In RedHat Linux, global settings are in
/etc/security/limits.conf .
"Signal 11" is included in ADSM.QuickFacts, where it is explained to be a
programming error: you may feel justified to report to IBM as a TSM defect.
(The Linux TSM is still the junior member of the TSM family, going through
growing pains which its brethern have experienced and overcome in the past.)
Searching IBM for +"segfault" +"producer thread" turns up only an old APAR, so
I would advise calling in this new one.
Richard Sims http://people.bu.edu/rbs
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