Hi,
(gdb) thread apply all bt
Thread 3 (Thread 0x7ff0094ed700 (LWP 31498)):
#0 pthread_cond_wait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1 0x00007ff017af0ecd in xmltooling::ReloadableXMLFile::reload_fn(void*) ()
from /usr/lib/x86_64-linux-gnu/libxmltooling-lite.so.6
#2 0x00007ff01f7ea064 in start_thread (arg=0x7ff0094ed700) at
pthread_create.c:309
#3 0x00007ff01f51f62d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 2 (Thread 0x7ff000cab700 (LWP 31510)):
#0 pthread_cond_timedwait@@GLIBC_2.3.2 () at
../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1 0x00007ff017afbec3 in
xmltooling::CondWaitImpl::timedwait(xmltooling::Mutex*, int) () from
/usr/lib/x86_64-linux-gnu/libxmltooling-lite.so.6
#2 0x00007ff0177d9241 in ?? () from
/usr/lib/x86_64-linux-gnu/libshibsp-lite.so.6
#3 0x00007ff01f7ea064 in start_thread (arg=0x7ff000cab700) at
pthread_create.c:309
#4 0x00007ff01f51f62d in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:111
Thread 1 (Thread 0x7ff020579780 (LWP 31497)):
#0 0x00007ff01f7f1489 in __libc_waitpid (pid=31518, stat_loc=0x7ffc44121764,
options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:40
#1 0x00007ff01c751b06 in itk_fork_process () from
/usr/lib/apache2/modules/mpm_itk.so
#2 0x00007ff020351f40 in ap_run_process_connection ()
#3 0x00007ff01c13f7ba in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so
#4 0x00007ff01c13fa01 in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so
#5 0x00007ff01c140667 in ?? () from /usr/lib/apache2/modules/mod_mpm_prefork.so
#6 0x00007ff02032c7ee in ap_run_mpm ()
#7 0x00007ff0203255f3 in main ()
(gdb)
Do you mean that disabling logging fixed the problem for you and there
are no hung workers in that case?
Yes, I commented out all lines in /etc/shibboleth/native.logger and
it solve my problem.
Also, please provide the output of the "thread apply all bt" gdb command
on a hung process.
This looks like a log4shib threading problem, probably inherited from
log4cpp.
--
Thanks,
Feri
Thank you Pavel Polacek
