Hi Yann, Many thanks for the super quick response. We'll try to remove mod_http2 and other modules as you suggest to see if that helps. I'll get back to you once we've had a chance to test it.
Thanks. Patrick *--* *Patrick Verdon | Founder* Web: www.youreko.com Mobile: +44 (0)7809 296438 Skype: patrick_verdon This entire communication is sent on behalf of Youreko Ltd and is strictly confidential to and for the sole use of the intended addressee. Registered in England - 7448349 On Mon, 18 Oct 2021 at 12:57, Yann Ylavic <ylavic....@gmail.com> wrote: > Hi Patrick, > > On Mon, Oct 18, 2021 at 11:27 AM Patrick Verdon > <patrick.ver...@youreko.com> wrote: > > > > # cat /var/log/httpd/error_log > > httpd: misc/apr_reslist.c:161: reslist_cleanup: Assertion `rl->ntotal == > 0' failed. > [] > > *** Error in `/usr/sbin/httpd': corrupted size vs. prev_size: > 0x0000557f94567e4f *** > [] > > httpd: misc/apr_reslist.c:161: reslist_cleanup: Assertion `rl->ntotal == > 0' failed. > > [Sun Oct 17 15:53:47.990497 2021] [core:notice] [pid 2620] AH00052: > child pid 3166 exit signal Aborted (6) > [] > > [Sun Oct 17 15:53:47.990781 2021] [core:notice] [pid 2620] AH00052: > child pid 2741 exit signal Segmentation fault (11) > > *** Error in `/usr/sbin/httpd': corrupted size vs. prev_size: > 0x0000557f94567e4f *** > [] > > [Sun Oct 17 15:53:48.056599 2021] [core:notice] [pid 2620] AH00052: > child pid 2727 exit signal Aborted (6) > > [Sun Oct 17 15:53:48.056667 2021] [mpm_prefork:notice] [pid 2620] > AH00169: caught SIGTERM, shutting down > > The log seems to show a stop then start sequence (which is possibly > what "service httpd restart" does), anyway the stop crashes children > processes that at some point have reserved/handled mod_proxy > connections. > > We will discuss whether/how to fix this on the dev@ mailing list, in > the meantime I'd suggest that: > > > [Sun Oct 17 15:53:48.180621 2021] [http2:warn] [pid 3581] AH10034: The > mpm module (prefork.c) is not supported by mod_http2. The mpm determines > how things are processed in your server. HTTP/2 has more demands in this > regard and the currently selected mpm will just not do. This is an advisory > warning. Your server will continue to work, but the HTTP/2 protocol will be > inactive. > > .. you do not "LoadModule http2_module mod_http2.so" in your MPM > prefork configuration, because due to its multithreaded nature (unlike > MPM prefork) mod_http2 implies that mod_proxy will have to > allocate/handle multiple simultaneous connection to the backend which > is what is causing the crash here. > > > [Sun Oct 17 15:53:48.181146 2021] [lbmethod_heartbeat:notice] [pid 3581] > AH02282: No slotmem from mod_heartmonitor > > Likewise you probably don't need lbmethod_heartbeat and several > modules in your list, so I'd suggest that you cleanup your LoadModules > a bit, ideally to the strict minimum needed. > > > Regards; > Yann. > > --------------------------------------------------------------------- > To unsubscribe, e-mail: users-unsubscr...@httpd.apache.org > For additional commands, e-mail: users-h...@httpd.apache.org > >
