With a vanilla apache 2.4.25 i got this one: Core was generated by `/usr/local/apache2/bin/httpd -k start'. Program terminated with signal SIGSEGV, Segmentation fault. #0 0x00007fe2bb7b8add in read () from /lib/x86_64-linux-gnu/libpthread.so.0 (gdb) bt #0 0x00007fe2bb7b8add in read () from /lib/x86_64-linux-gnu/libpthread.so.0 #1 0x000000000048043a in ap_mpm_podx_check () #2 <signal handler called> #3 0x000000004b351bd0 in ?? () Cannot access memory at address 0x0
I'm compiling apache 2.4.25 against: libapr1: 1.5.1-3 libaprutil1: 1.5.4-1 from debian jessie and libnghttp2-14: 1.13.0-1 build from upstream sources. May this be relevant? Still not oberving any crashes running apache 2.4.23. Greets, Stefan Am 19.01.2017 um 08:22 schrieb Stefan Priebe - Profihost AG: > Hi Stefan, > > Apache 2.4.25 + mpm_event V7 and core mod_http2: > Core was generated by `/usr/local/apache2/bin/httpd -k start'. > Program terminated with signal SIGSEGV, Segmentation fault. > #0 0x0000000000521d98 in h2_stream_out_prepare () > (gdb) bt > #0 0x0000000000521d98 in h2_stream_out_prepare () > #1 0x00007f54f27eba80 in ?? () > #2 0x00007f54f27eba8c in ?? () > #3 0x00007f54f27eba90 in ?? () > #4 0x00007f54ef00e0a0 in ?? () > #5 0x00007f54ef00e9a8 in ?? () > #6 0x00007f54f27ebac0 in ?? () > #7 0x0000000000000000 in ?? () > > so it's crashing with mpm_event and without mpm_event. And it does with > core mod_http2 and mod_http2 v1.8.8. > > Is a regression in mod_http2 possible? > > Greets, > Stefan > Am 19.01.2017 um 07:55 schrieb Stefan Priebe - Profihost AG: >> Dear Stefan, >> dear Yann, >> >> a longer test run shows it's also crashing without any mpm_event patch >> at all. So I'm really sorry. It just starts crashing faster with the >> mpm_event patches. >> >> I'll now retest regarding mod_http2 core, plain apache 2.4.25 and >> mod_http v1.8.8 >> >> may be it's a regression in 2.4.25 itself or in mod_http2. >> >> Stefan >> >> Am 19.01.2017 um 00:52 schrieb Yann Ylavic: >>> On Wed, Jan 18, 2017 at 10:49 PM, Stefan Priebe - Profihost AG >>> <[email protected]> wrote: >>>> >>>> v5 does not apply to 2.4.25. If you can send me a v5 version that >>>> applies to 2.4.25 i'll test. >>> >>> Here it is (slightly modified to fix possible deadlocks, per r1762742 >>> and r1774538). >>> >>> Thanks! >>>
