Hello,
For one month, I try to debug a very strange interaction between 2.6
kernel and glibc on sparc64 boxes. All boxes run debian/testing.
I have tested all kernel betwenn 2.6.20.3 and 2.6.21.6 with glibc 2.3,
2.5 and 2.6 (2.6exp3 from debian/experimental).
Constatations:
1/ with all kernels and glibc2.3, all boxes run fine;
2/ with all kernels and glibc2.5 or 2.6, my U2/smp works fine too, but
on U60/smp and U80/smp several daemons randmoly remain in sleep state
and don't wake up anymore (named, clamd, milter-greylist, portmap...).
I have tried to isolate parameters and I have found that the trouble
comes from thread support introduced by new libc, and I though that I
have to find it in glibc. Now, I think that this bug vomes from kernel,
because I never seen this bug (with of course the same configuration) on
my U2.
Steps to reproduce:
1/ install a sendmail server with mimedefang that calls clamav-daemon
(in mimedefang.pl.conf : $Features{'Virus:CLAMD'} = 1; $ClamdSock =
"/var/run/clamav/clamd.ctl";)
2/ send or receive (by script ;-) ) huge amount of mails
3/ wait... nd see ;-)
When clamav-daemon (or all other daemons) remain in sleep mode, I
cannot quickly restart this daemon by /etc/init.d/$(daemon) restart, I
have to wait for a timeout.
Regards,
JKB
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