Hey Graham:
Just had another freeze, this time with flock -- backtraces from two
of the WSGI processes below.
The Apaches are in the same state as with the SysV mutex, blocking on
this connect:
connect(69, {sa_family=AF_FILE, path="/home/actionkit/releases/
stable/apache/logs/.2028.61.7.sock"}, 110
Let me know if you need more info!
Thread 4 (Thread 0x41d73940 (LWP 32370)):
#0 0x000000330accc5e2 in select () from /lib64/libc.so.6
#1 0x00002acda115f2f5 in apr_sleep () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa1735bf in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x000000330b406367 in start_thread () from /lib64/libpthread.so.0
#4 0x000000330acd309d in clone () from /lib64/libc.so.6
Thread 3 (Thread 0x42774940 (LWP 32371)):
#0 0x000000330accc5e2 in select () from /lib64/libc.so.6
#1 0x00002acda115f2f5 in apr_sleep () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa173808 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x000000330b406367 in start_thread () from /lib64/libpthread.so.0
#4 0x000000330acd309d in clone () from /lib64/libc.so.6
Thread 2 (Thread 0x43175940 (LWP 32372)):
#0 0x000000330acc5c57 in flock () from /lib64/libc.so.6
#1 0x00002acda11546b5 in ?? () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa17ab5e in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x000000330b406367 in start_thread () from /lib64/libpthread.so.0
#4 0x000000330acd309d in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x2acda1e08a90 (LWP 32369)):
#0 0x000000330acca556 in poll () from /lib64/libc.so.6
#1 0x00002acda115b0d1 in apr_poll () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa178377 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x00002acdaa178ce7 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#4 0x00002acdaa17b0e1 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#5 0x00002acda1156a3d in apr_proc_other_child_alert ()
from /usr/lib64/libapr-1.so.0
#6 0x0000000000446404 in ap_mpm_run ()
#7 0x0000000000421b11 in main ()
(gdb) thread apply all bt
Thread 4 (Thread 0x41d73940 (LWP 32370)):
#0 0x000000330accc5e2 in select () from /lib64/libc.so.6
#1 0x00002acda115f2f5 in apr_sleep () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa1735bf in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x000000330b406367 in start_thread () from /lib64/libpthread.so.0
#4 0x000000330acd309d in clone () from /lib64/libc.so.6
Thread 3 (Thread 0x42774940 (LWP 32371)):
#0 0x000000330accc5e2 in select () from /lib64/libc.so.6
#1 0x00002acda115f2f5 in apr_sleep () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa173808 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x000000330b406367 in start_thread () from /lib64/libpthread.so.0
#4 0x000000330acd309d in clone () from /lib64/libc.so.6
Thread 2 (Thread 0x43175940 (LWP 32372)):
#0 0x000000330acc5c57 in flock () from /lib64/libc.so.6
#1 0x00002acda11546b5 in ?? () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa17ab5e in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x000000330b406367 in start_thread () from /lib64/libpthread.so.0
#4 0x000000330acd309d in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x2acda1e08a90 (LWP 32369)):
#0 0x000000330acca556 in poll () from /lib64/libc.so.6
#1 0x00002acda115b0d1 in apr_poll () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa178377 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x00002acdaa178ce7 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#4 0x00002acdaa17b0e1 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#5 0x00002acda1156a3d in apr_proc_other_child_alert ()
from /usr/lib64/libapr-1.so.0
#6 0x0000000000446404 in ap_mpm_run ()
#7 0x0000000000421b11 in main ()
--------------
Thread 4 (Thread 0x41c2f940 (LWP 12879)):
#0 0x000000330accc5e2 in select () from /lib64/libc.so.6
#1 0x00002acda115f2f5 in apr_sleep () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa1735bf in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x000000330b406367 in start_thread () from /lib64/libpthread.so.0
#4 0x000000330acd309d in clone () from /lib64/libc.so.6
Thread 3 (Thread 0x42630940 (LWP 12880)):
#0 0x000000330accc5e2 in select () from /lib64/libc.so.6
#1 0x00002acda115f2f5 in apr_sleep () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa173808 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x000000330b406367 in start_thread () from /lib64/libpthread.so.0
#4 0x000000330acd309d in clone () from /lib64/libc.so.6
Thread 2 (Thread 0x43031940 (LWP 12881)):
#0 0x000000330acc5c57 in flock () from /lib64/libc.so.6
#1 0x00002acda11546b5 in ?? () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa17ab5e in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x000000330b406367 in start_thread () from /lib64/libpthread.so.0
#4 0x000000330acd309d in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x2acda1e08a90 (LWP 12878)):
#0 0x000000330acca556 in poll () from /lib64/libc.so.6
#1 0x00002acda115b0d1 in apr_poll () from /usr/lib64/libapr-1.so.0
#2 0x00002acdaa178377 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#3 0x00002acdaa178ce7 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#4 0x00002acdaa17b0e1 in ?? ()
from /home/actionkit/releases/stable/apache/conf/libexec/
mod_wsgi.so
#5 0x00002acda1156a3d in apr_proc_other_child_alert ()
from /usr/lib64/libapr-1.so.0
#6 0x0000000000446404 in ap_mpm_run ()
#7 0x0000000000421b11 in main ()
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