Meh. Stefan: once during the last 2 days or several?
This is accessing r->useragent_addr by mod_access_compat which is, for h2 slaves, initialized with c->client_addr. Since c->client_addr is always initialized by the master connection, I did not see any race issues with sharing this across multiple slaves. Anyone has an idea? > Am 24.02.2017 um 12:33 schrieb Stefan Priebe - Profihost AG > <s.pri...@profihost.ag>: > > Hi Yann, > Hi Stefan, > > new trace: > Core was generated by `/usr/local/apache/bin/httpd -DFOREGROUND'. > Program terminated with signal SIGSEGV, Segmentation fault. > #0 0x00007f459699740c in apr_ipsubnet_test (ipsub=0x7f44c003d070, > sa=0x7f4570021950) at network_io/unix/sockaddr.c:1090 > #0 0x00007f459699740c in apr_ipsubnet_test (ipsub=0x7f44c003d070, > sa=0x7f4570021950) at network_io/unix/sockaddr.c:1090 > #1 0x00007f459573b400 in find_allowdeny (r=r@entry=0x7f44c002c250, > method=method@entry=0, a=<optimized out>, a=<optimized out>) > at mod_access_compat.c:270 > #2 0x00007f459573b59a in check_dir_access (r=0x7f44c002c250) > at mod_access_compat.c:324 > #3 0x0000560ce8333fd0 in ap_run_access_checker (r=0x7f44c002c250) > at request.c:87 > #4 0x0000560ce8336ea8 in ap_process_request_internal (r=0x7f44c002c250) > at request.c:265 > #5 0x0000560ce8377b40 in ap_process_async_request (r=0x7f44c002c250) > at http_request.c:434 > #6 0x0000560ce8377cf0 in ap_process_request (r=0x7f44c002c250) > at http_request.c:471 > #7 0x0000560ce83b8aad in h2_task_process_request (c=<optimized out>, > task=<optimized out>) at h2_task.c:612 > #8 h2_task_process_conn (c=0x7f44c003d070) at h2_task.c:659 > #9 0x0000560ce8347fd0 in ap_run_process_connection (c=0x7f44c0026220) > at connection.c:42 > #10 0x0000560ce83b9eaf in h2_task_do (task=0x7f44c002a240, > thread=0x560ce8afc900, worker_id=365015362) at h2_task.c:578 > #11 0x0000560ce83c362f in execute (thread=0x560ce8afc900, > wctx=0x560ce8afc8c0) > at h2_worker.c:46 > #12 0x00007f45967610a4 in start_thread () > from /lib/x86_64-linux-gnu/libpthread.so.0 > #13 0x00007f459649662d in clone () from /lib/x86_64-linux-gnu/libc.so.6 > > Stefan > > Am 23.02.2017 um 07:59 schrieb Stefan Priebe - Profihost AG: >> Am 22.02.2017 um 12:22 schrieb Yann Ylavic: >>> Hi Stefan, >>> >>> On Wed, Feb 22, 2017 at 11:32 AM, Stefan Priebe - Profihost AG >>> <s.pri...@profihost.ag> wrote: >>>> >>>> @Yann how should i test? Vanilla 2.4.25 + MPM V7 + mod_http2 v1.9.1? >>> >>> Yes, I think this is the right thing to do for now (no more patches than >>> v7). >>> >>>> Or >>>> do i need V8 or something else? >>> >>> Not ready yet, I'll propose it when that's the case if you can test it then. >>> That's an mpm_event optimization (hopefully) only, v7 is good from >>> correctness POV... >> >> OK it's running. Will report back. >> >> Greets, >> Stefan >> >>> Thanks for testing, still! >>> >>> Regards, >>> Yann. >>> Stefan Eissing <green/>bytes GmbH Hafenstrasse 16 48155 Münster www.greenbytes.de
