Description of problem: Upgrading my home server to Fedora 23 causing it to consume 100 % CPU after a while just running apache with php, gallery3 and an owncloud instance. Debugging into it shows all apache processes to hang at some mod_gnutls operation. Version-Release number of selected component (if applicable): Fedora 23 fully upt-to-date: kernel-4.4.9-300.fc23.x86_64 httpd-2.4.18-1.fc23.x86_64 mod_gnutls-0.7-2.fc23.x86_64 gnutls-3.4.11-1.fc23.x86_64 gallery3-3.0.9-5.fc23.noarch owncloud-8.2.4-1.fc23.noarch php-5.6.21-1.fc23.x86_64 How reproducible: restart httpd, wait a few minutes, do some https accesses and the first few apache processes will consume 100 % CPU Steps to Reproduce: 1. sudo systemctl restart httpd 2. wget --no-check-certificate https://localhost 3. top Actual results: Tasks: 379 total, 4 running, 375 sleeping, 0 stopped, 0 zombie %Cpu(s): 4.2 us, 0.1 sy, 0.0 ni, 95.7 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem : 98994728 total, 82720880 free, 1201508 used, 15072340 buff/cache KiB Swap: 24780796 total, 24780796 free, 0 used. 97535424 avail Mem PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 10109 apache 20 0 804756 25956 13136 R 100.0 0.0 0:09.43 httpd Expected results: apache should not consume 100 % CPU Additional info: [user@host ~]$ sudo pstack 10109 Thread 2 (Thread 0x7efef88c2700 (LWP 10110)): #0 0x00007eff20abfb10 in pthread_cond_wait@@GLIBC_2.3.2 () from target:/lib64/libpthread.so.0 #1 0x00007eff19cbf07a in get_mplx_next () from target:/etc/httpd/modules/mod_http2.so #2 0x00007eff19cbe8ac in execute () from target:/etc/httpd/modules/mod_http2.so #3 0x00007eff20aba60a in start_thread () from target:/lib64/libpthread.so.0 #4 0x00007eff205f059d in clone () from target:/lib64/libc.so.6 Thread 1 (Thread 0x7eff21f508c0 (LWP 10109)): #0 0x00007eff1093c0bb in _gnutls_recv_in_buffers () from target:/lib64/libgnutls.so.30 #1 0x00007eff1093da38 in _gnutls_recv_int () from target:/lib64/libgnutls.so.30 #2 0x00007eff1093df64 in gnutls_record_recv () from target:/lib64/libgnutls.so.30 #3 0x00007eff10c4af2a in gnutls_io_input_read () from target:/etc/httpd/modules/mod_gnutls.so #4 0x00007eff10c4bb40 in mgs_filter_input () from target:/etc/httpd/modules/mod_gnutls.so #5 0x0000559be5e5efc7 in ap_process_request_after_handler () #6 0x0000559be5e604b0 in ap_process_request () #7 0x0000559be5e5c59e in ap_process_http_connection () #8 0x0000559be5e53950 in ap_run_process_connection () #9 0x00007eff15964b21 in child_main () from target:/etc/httpd/modules/mod_mpm_prefork.so #10 0x00007eff15964db3 in make_child () from target:/etc/httpd/modules/mod_mpm_prefork.so #11 0x00007eff15964e2b in startup_children () from target:/etc/httpd/modules/mod_mpm_prefork.so #12 0x00007eff15965e07 in prefork_run () from target:/etc/httpd/modules/mod_mpm_prefork.so #13 0x0000559be5e2ddae in ap_run_mpm () #14 0x0000559be5e27437 in main () I found a report of a similar problem upstream unfortunately at the time of this writing their OpenID Login did not work for me: https://mod.gnutls.org/ticket/136
OK, looking at upstream changelog shows this to be a known issue fixed in version 0.7.2 (2015-11-21): https://mod.gnutls.org/browser/mod_gnutls/CHANGELOG I rebuilt 0.7.3 from FC24 beta on FC23 and can confirm that this fixes the issue. Finally! I would strongly suggest for at least 0.7.2 with this fix to be officially backported to FC23.
mod_gnutls-0.7.5-1.fc24 has been submitted as an update to Fedora 24. https://bodhi.fedoraproject.org/updates/FEDORA-2016-47d118a74b
mod_gnutls-0.7.5-1.fc23 has been submitted as an update to Fedora 23. https://bodhi.fedoraproject.org/updates/FEDORA-2016-dcfa6b6e51
mod_gnutls-0.7.5-1.fc22 has been submitted as an update to Fedora 22. https://bodhi.fedoraproject.org/updates/FEDORA-2016-e7f8326a78
mod_gnutls-0.7.5-1.fc24 has been pushed to the Fedora 24 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-47d118a74b
mod_gnutls-0.7.5-1.fc23 has been pushed to the Fedora 23 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-dcfa6b6e51
mod_gnutls-0.7.5-1.fc22 has been pushed to the Fedora 22 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2016-e7f8326a78
mod_gnutls-0.7.5-1.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.
mod_gnutls-0.7.5-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.
mod_gnutls-0.7.5-1.fc22 has been pushed to the Fedora 22 stable repository. If problems still persist, please make note of it in this bug report.