I can often see in the error log that it segfaults, but it does not core-dump. mod_whatkilledus is mostly inconclusive, and mod_backtrace doesn't seem to hook in:Confusing!
I wrote this mail over the last two days while collecting data, so maybe the wording is a bit off the track ;)
Couple of thoughts: * Does this persist if you switch back to APR-1.2.latest?
I don't know, haven't tried yet, right now I also don't have a possibility to try it out.
* You said on IRC that you got the crash with a traceback with prefork. Does the traceback reveal anything?
I have a couple of core dumps from different domains, and now I even found one from yesterday that was caused by the proxy (the log does't say that it core dumped):
Core was generated by `/opt/bw/bin/httpd-worker -f /opt/bw/etc/apache/proxy/reverse_proxy-httpd.conf'. Program terminated with signal 11, Segmentation fault. #0 0x00002b61978fd86b in ?? () (gdb) where #0 0x00002b61978fd86b in ?? () #1 0x00007fff00000000 in ?? () #2 0x00000000006b1e78 in ?? () #3 0x0000000000000003 in ?? () #4 0x0000000000000028 in ?? () #5 0x000000001f5cfd7f in ?? () #6 0x00002b61978fdcdd in ?? () #7 0x0000000000000040 in ?? () #8 0x0000000000000010 in ?? () #9 0x000000029cb46fa0 in ?? () #10 0x0000003f00000028 in ?? () #11 0x00000000007d73f5 in ?? () #12 0x00007fff131b31e0 in ?? () #13 0x00007fff131b3368 in ?? () #14 0x0000000000000c70 in ?? () #15 0x0000000000000000 in ?? () (gdb) thread apply all bt Thread 1 (process 22492): #0 0x00002b61978fd86b in ?? () #1 0x00007fff00000000 in ?? () #2 0x00000000006b1e78 in ?? () #3 0x0000000000000003 in ?? () #4 0x0000000000000028 in ?? () #5 0x000000001f5cfd7f in ?? () #6 0x00002b61978fdcdd in ?? () #7 0x0000000000000040 in ?? () #8 0x0000000000000010 in ?? () #9 0x000000029cb46fa0 in ?? () #10 0x0000003f00000028 in ?? () #11 0x00000000007d73f5 in ?? () #12 0x00007fff131b31e0 in ?? () #13 0x00007fff131b3368 in ?? () #14 0x0000000000000c70 in ?? () #15 0x0000000000000000 in ?? ()
-- Nick Kew
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