Hi Stefan, Hi Yann, after applying the event patch to 2.4.25 from https://bz.apache.org/bugzilla/show_bug.cgi?id=57399.
I'm seeing segfaults in the mod_http2 code. I already bumped mod_http2 to v1.8.8. But the segfaults are still happening. gdb shows this: Core was generated by `/usr/local/apache2/bin/httpd -k start'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007fb75242cd45 in apr_pool_cleanup_kill () from /usr/lib/x86_64-linux-gnu/libapr-1.so.0 (gdb) bt #0 0x00007fb75242cd45 in apr_pool_cleanup_kill () from /usr/lib/x86_64-linux-gnu/libapr-1.so.0 #1 0x00007fb75242ce21 in apr_pool_cleanup_run () from /usr/lib/x86_64-linux-gnu/libapr-1.so.0 #2 0x000000000051f268 in stream_pool_cleanup () #3 0x00007fb7327eb270 in ?? () #4 0x00007fb730c180a0 in ?? () #5 0x00007fb7327eb294 in ?? () #6 0x00007fb7309046c0 in ?? () #7 0x00007fb730c180a0 in ?? () #8 0x0000000030c18028 in ?? () #9 0x00007fb730c18028 in ?? () #10 0x00007fb75242b9be in apr_pool_destroy () from /usr/lib/x86_64-linux-gnu/libapr-1.so.0 #11 0x000000000051fe61 in h2_stream_destroy () #12 0x0000002d317482d8 in ?? () #13 0x00007fb730c180a0 in ?? () #14 0x00007fb7327eb300 in ?? () #15 0x0000000000507ab7 in stream_done () #16 0x0000000000000000 in ?? () and or this: Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007fd2e9034014 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 (gdb) bt #0 0x00007fd2e9034014 in ?? () from /lib/x86_64-linux-gnu/libc.so.6 #1 0x00007fd2e94c7036 in ?? () from /usr/lib/x86_64-linux-gnu/libapr-1.so.0 #2 0x00007fd2e94c746f in apr_hash_set () from /usr/lib/x86_64-linux-gnu/libapr-1.so.0 #3 0x000000000052a238 in h2_ihash_remove () #4 0x0000004b00000000 in ?? () #5 0x00007fd2c8d60328 in ?? () #6 0x00007fd2c97e9300 in ?? () #7 0x0000000000506b24 in purge_stream () #8 0x00007fd2d82140a0 in ?? () #9 0x00007fd2c831e2d8 in ?? () #10 0x00007fd20352c0a0 in ?? () #11 0x0000004b00000000 in ?? () #12 0x00007fd2d82140a0 in ?? () #13 0x00007fd2c831e2d8 in ?? () #14 0x00007fd2c97e9340 in ?? () #15 0x000000000052a18f in ihash_iter () #16 0x00007fd2d82140a0 in ?? () #17 0x0000000000000004 in ?? () #18 0x00007fd2d82140a0 in ?? () #19 0x00007fd2c97e93c0 in ?? () #20 0x0000000000000000 in ?? () Greets, Stefan Am 17.01.2017 um 21:53 schrieb Stefan Priebe: > Hi Yann, > > while testing V6 i'm experiencing segfaults. > > exit signal Segmentation > > server-error.log: > AH00052: child pid 14110 exit signal Segmentation fault (11) > > currently i'm trying to grab a core dump. > > Greets, > Stefan > > Am 26.12.2016 um 21:18 schrieb Stefan Priebe - Profihost AG: >> Am 23.12.2016 um 01:41 schrieb Yann Ylavic: >>> Hi Stefan, >>> >>> On Tue, Dec 20, 2016 at 1:52 PM, Stefan Priebe - Profihost AG >>> <[email protected]> wrote: >>>> >>>> Today i had another server giving no answers to any requests. apache >>>> fullstatus did not respond. >>> >>> Since v5 of the patch, I committed another related change in trunk, >>> namely: http://svn.apache.org/r1774538 >>> It's about lingering keepalive connections on graceful restart which >>> may not cause a wakeup. >>> Does it help? >> >> I'll try that but wanted to rebuild based on http 2.4.25. But your >> mpm_event_listener_wakeup_bug57399_V5 patch does no longer apply to http >> 2.2.25. Can you rebase it? >> >>>> gdb bt shows this for all httpd childs: >>> >>> These backtraces are the ones of the main thread, probably not the >>> culprit. >>> What does "thread apply all bt" say? >> >> Will redo / save that output next time. >> >> Thanks! >> >> Greets, >> Stefan >> >>> Regards, >>> Yann. >>>
