Mailing List Archive

[Bug 66205] New: httpd service reload/restart through "Segfault at 0" and httpd crash
https://bz.apache.org/bugzilla/show_bug.cgi?id=66205

Bug ID: 66205
Summary: httpd service reload/restart through "Segfault at 0"
and httpd crash
Product: Apache httpd-2
Version: 2.4.37
Hardware: Other
OS: Linux
Status: NEW
Severity: regression
Priority: P2
Component: mod_http2
Assignee: bugs@httpd.apache.org
Reporter: dilip.anand1982@gmail.com
Target Milestone: ---

Created attachment 38362
--> https://bz.apache.org/bugzilla/attachment.cgi?id=38362&action=edit
httpd and based tool's configurations are attached.

We are using below HTTPD - RPMs in AlmaLinux 8.5 and facing HTTPD “Segfault”
issue and httpd is crashing. One of the dependent pkg of httpd is mod_proxy.
Herewith, attaching the httpd configuration and tools that we are using which
is supported by “httpd”.

We are using a httpd service reload/restart during “log-rotate” in every hour.

We have updated the system to AL 8.6 as well but issue was not fixed. We have
raised the case with “Red-hat” as well and they are dined to support us, as the
AL is un-supported by Red-hat.


$ rpm -qa|egrep -i "http|mod_proxy"
------------------------------------------------------ > these are alma linux
8.5
collectd-write_http-5.11.0-1.el8.x86_64
httpd-2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma.x86_64
perl-HTTP-Tiny-0.074-1.el8.noarch
httpd-tools-2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma.x86_64
mod_proxy_html-2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma.x86_64
libnghttp2-1.33.0-3.el8_2.1.x86_64
almalinux-logos-httpd-84.5-1.el8.noarch
httpd-filesystem-2.4.37-47.module_el8.6.0+2872+fe0ff7aa.1.alma.noarch
http-parser-2.8.0-9.el8.x86_64
mod_http2-1.15.7-5.module_el8.6.0+2872+fe0ff7aa.x86_64


$ rpm -qa|egrep -i
"http|mod_proxy"------------------------------------------------------ > these
are alma linux 8.6
collectd-write_http-5.11.0-1.el8.x86_64
httpd-tools-2.4.37-47.module_el8.6.0+2935+fb177b09.2.x86_64
perl-HTTP-Tiny-0.074-1.el8.noarch
libnghttp2-1.33.0-3.el8_2.1.x86_64
almalinux-logos-httpd-84.5-1.el8.noarch
httpd-filesystem-2.4.37-47.module_el8.6.0+2935+fb177b09.2.noarch
mod_proxy_html-2.4.37-47.module_el8.6.0+2935+fb177b09.2.x86_64
httpd-2.4.37-47.module_el8.6.0+2935+fb177b09.2.x86_64
http-parser-2.8.0-9.el8.x86_64
mod_http2-1.15.7-5.module_el8.6.0+2872+fe0ff7aa.x86_64



“/var/log/messages” error log :
2022-08-01T15:00:01.627582+00:00 <Hostname> kernel: [ 7856.564252]
httpd[1488114]: segfault at 0 ip 00007f60f0ca5bc6 sp 00007ffdb9b3f9e0 error 4
in libc-2.28.so[7f60f0c20000+1bc000]
2022-08-01T16:00:01.797314+00:00 <Hostname> kernel: [11456.737690]
httpd[2849302]: segfault at 0 ip 00007f60f0ca5bc6 sp 00007ffdb9b3f9e0 error 4
in libc-2.28.so[7f60f0c20000+1bc000]
2022-08-02T01:00:01.517464+00:00 <Hostname> kernel: [43856.485259]
httpd[2481909]: segfault at 0 ip 00007f60f0ca5bc6 sp 00007ffdb9b3f9e0 error 4
in libc-2.28.so[7f60f0c20000+1bc000]
2022-08-02T02:00:01.630191+00:00 <Hostname> kernel: [47456.603374]
httpd[3831320]: segfault at 0 ip 00007f60f0ca5bc6 sp 00007ffdb9b3f9e0 error 4
in libc-2.28.so[7f60f0c20000+1bc000]
2022-08-02T02:00:01.660156+00:00 <Hostname> kernel: [47456.634199]
httpd[3831321]: segfault at 0 ip 00007f60f0ca5bc6 sp 00007ffdb9b3f9e0 error 4
in libc-2.28.so[7f60f0c20000+1bc000]
2022-08-02T03:00:01.498163+00:00 <Hostname> kernel: [51056.474481]
httpd[996752]: segfault at 0 ip 00007f60f0ca5bc6 sp 00007ffdb9b3f9e0 error 4 in
libc-2.28.so[7f60f0c20000+1bc000]

Below is the "dmesg"

[ 2649.135216] httpd[73653]: segfault at 0 ip 00007fc699a3c776 sp
00007ffeb40b1530 error 4 in libc-2.28.so[7fc6999a0000+1bc000]
[ 2649.135416] Code: 84 5d ff ff ff 0f 1f 80 00 00 00 00 48 8d 34 58 0f b7 0e
66 85 c9 0f 84 46 ff ff ff 48 8d 04 d8 83 e9 01 48 8b 90 80 00 00 00 <48> 8b 3a
48 89 b8 80 00 00 00 66 89 0e 48 c7 42 08 00 00 00 00 e9
[13449.255325] httpd[1233352]: segfault at 0 ip 00007f18ae4a2776 sp
00007fffd4db2f60 error 4 in libc-2.28.so[7f18ae406000+1bc000]
[13449.255523] Code: 84 5d ff ff ff 0f 1f 80 00 00 00 00 48 8d 34 58 0f b7 0e
66 85 c9 0f 84 46 ff ff ff 48 8d 04 d8 83 e9 01 48 8b 90 80 00 00 00 <48> 8b 3a
48 89 b8 80 00 00 00 66 89 0e 48 c7 42 08 00 00 00 00 e9
[17049.364082] httpd[1716510]: segfault at 0 ip 00007f0915462776 sp
00007ffcd6bc1900 error 4 in libc-2.28.so[7f09153c6000+1bc000]
[17049.364280] Code: 84 5d ff ff ff 0f 1f 80 00 00 00 00 48 8d 34 58 0f b7 0e
66 85 c9 0f 84 46 ff ff ff 48 8d 04 d8 83 e9 01 48 8b 90 80 00 00 00 <48> 8b 3a
48 89 b8 80 00 00 00 66 89 0e 48 c7 42 08 00 00 00 00 e9
[17049.372968] httpd[1716507]: segfault at 0 ip 00007f0915462776 sp
00007ffcd6bc1900 error 4 in libc-2.28.so[7f09153c6000+1bc000]
[17049.373163] Code: 84 5d ff ff ff 0f 1f 80 00 00 00 00 48 8d 34 58 0f b7 0e
66 85 c9 0f 84 46 ff ff ff 48 8d 04 d8 83 e9 01 48 8b 90 80 00 00 00 <48> 8b 3a
48 89 b8 80 00 00 00 66 89 0e 48 c7 42 08 00 00 00 00 e9
[27849.109207] httpd[2938433]: segfault at 0 ip 00007f9f98547776 sp
00007ffdfc01a520 error 4 in libc-2.28.so[7f9f984ab000+1bc000]
[27849.109489] Code: 84 5d ff ff ff 0f 1f 80 00 00 00 00 48 8d 34 58 0f b7 0e
66 85 c9 0f 84 46 ff ff ff 48 8d 04 d8 83 e9 01 48 8b 90 80 00 00 00 <48> 8b 3a
48 89 b8 80 00 00 00 66 89 0e 48 c7 42 08 00 00 00 00 e9
[31448.672867] httpd[3430937]: segfault at 0 ip 00007f14eb77f776 sp
00007ffcc998a320 error 4 in libc-2.28.so[7f14eb6e3000+1bc000]
[31448.673063] Code: 84 5d ff ff ff 0f 1f 80 00 00 00 00 48 8d 34 58 0f b7 0e
66 85 c9 0f 84 46 ff ff ff 48 8d 04 d8 83 e9 01 48 8b 90 80 00 00 00 <48> 8b 3a
48 89 b8 80 00 00 00 66 89 0e 48 c7 42 08 00 00 00 00 e9


Below are "journalctl -u httpd"


Aug 09 15:00:03 <hostname> systemd[1]: Started The Apache HTTP Server.
Aug 09 15:00:03 <hostname> httpd[3430934]: Server configured, listening on:
port 8008, port 80
Aug 09 16:00:01 <hostname> systemd[1]: Stopping The Apache HTTP Server...
Aug 09 16:00:02 <hostname> systemd[1]: httpd.service: Succeeded.
Aug 09 16:00:02 <hostname> systemd[1]: Stopped The Apache HTTP Server.
Aug 09 16:00:02 <hostname> systemd[1]: Starting The Apache HTTP Server...
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572573 2022]
[so:warn] [pid 3857284] AH01574: module access_compat_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572607 2022]
[so:warn] [pid 3857284] AH01574: module actions_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572613 2022]
[so:warn] [pid 3857284] AH01574: module alias_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572681 2022]
[so:warn] [pid 3857284] AH01574: module auth_basic_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572687 2022]
[so:warn] [pid 3857284] AH01574: module auth_digest_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572691 2022]
[so:warn] [pid 3857284] AH01574: module authn_anon_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572696 2022]
[so:warn] [pid 3857284] AH01574: module authn_core_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572752 2022]
[so:warn] [pid 3857284] AH01574: module authn_dbm_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572758 2022]
[so:warn] [pid 3857284] AH01574: module authn_file_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572819 2022]
[so:warn] [pid 3857284] AH01574: module authz_core_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572877 2022]
[so:warn] [pid 3857284] AH01574: module authz_dbm_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572883 2022]
[so:warn] [pid 3857284] AH01574: module authz_groupfile_module is already
loaded, skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572887 2022]
[so:warn] [pid 3857284] AH01574: module authz_host_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572891 2022]
[so:warn] [pid 3857284] AH01574: module authz_owner_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572897 2022]
[so:warn] [pid 3857284] AH01574: module authz_user_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.572902 2022]
[so:warn] [pid 3857284] AH01574: module autoindex_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573063 2022]
[so:warn] [pid 3857284] AH01574: module cache_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573323 2022]
[so:warn] [pid 3857284] AH01574: module deflate_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573336 2022]
[so:warn] [pid 3857284] AH01574: module dir_module is already loaded, skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573437 2022]
[so:warn] [pid 3857284] AH01574: module env_module is already loaded, skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573448 2022]
[so:warn] [pid 3857284] AH01574: module expires_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573453 2022]
[so:warn] [pid 3857284] AH01574: module ext_filter_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573458 2022]
[so:warn] [pid 3857284] AH01574: module filter_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573462 2022]
[so:warn] [pid 3857284] AH01574: module headers_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573467 2022]
[so:warn] [pid 3857284] AH01574: module include_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573539 2022]
[so:warn] [pid 3857284] AH01574: module log_config_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573549 2022]
[so:warn] [pid 3857284] AH01574: module logio_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573604 2022]
[so:warn] [pid 3857284] AH01574: module mime_magic_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573613 2022]
[so:warn] [pid 3857284] AH01574: module mime_module is already loaded, skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573618 2022]
[so:warn] [pid 3857284] AH01574: module negotiation_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573686 2022]
[so:warn] [pid 3857284] AH01574: module reqtimeout_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573750 2022]
[so:warn] [pid 3857284] AH01574: module rewrite_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.573760 2022]
[so:warn] [pid 3857284] AH01574: module setenvif_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.574065 2022]
[so:warn] [pid 3857284] AH01574: module substitute_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.574076 2022]
[so:warn] [pid 3857284] AH01574: module suexec_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.574137 2022]
[so:warn] [pid 3857284] AH01574: module unixd_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.574200 2022]
[so:warn] [pid 3857284] AH01574: module version_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.574210 2022]
[so:warn] [pid 3857284] AH01574: module vhost_alias_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.574309 2022]
[so:warn] [pid 3857284] AH01574: module dav_module is already loaded, skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.574320 2022]
[so:warn] [pid 3857284] AH01574: module dav_fs_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.574841 2022]
[so:warn] [pid 3857284] AH01574: module mpm_prefork_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.574878 2022]
[so:warn] [pid 3857284] AH01574: module proxy_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.575087 2022]
[so:warn] [pid 3857284] AH01574: module proxy_ajp_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.575509 2022]
[so:warn] [pid 3857284] AH01574: module proxy_http_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.575988 2022]
[so:warn] [pid 3857284] AH01574: module systemd_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.576033 2022]
[so:warn] [pid 3857284] AH01574: module cgi_module is already loaded, skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.581931 2022]
[so:warn] [pid 3857284] AH01574: module php7_module is already loaded, skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582593 2022]
[so:warn] [pid 3857284] AH01574: module proxy_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582605 2022]
[so:warn] [pid 3857284] AH01574: module proxy_balancer_module is already
loaded, skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582615 2022]
[so:warn] [pid 3857284] AH01574: module proxy_ftp_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582622 2022]
[so:warn] [pid 3857284] AH01574: module proxy_http_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582631 2022]
[so:warn] [pid 3857284] AH01574: module proxy_ajp_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582638 2022]
[so:warn] [pid 3857284] AH01574: module proxy_connect_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582657 2022]
[so:warn] [pid 3857284] AH01574: module headers_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582723 2022]
[so:warn] [pid 3857284] AH01574: module proxy_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582729 2022]
[so:warn] [pid 3857284] AH01574: module proxy_balancer_module is already
loaded, skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582735 2022]
[so:warn] [pid 3857284] AH01574: module proxy_ftp_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582741 2022]
[so:warn] [pid 3857284] AH01574: module proxy_http_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582747 2022]
[so:warn] [pid 3857284] AH01574: module proxy_ajp_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582752 2022]
[so:warn] [pid 3857284] AH01574: module proxy_connect_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582917 2022]
[so:warn] [pid 3857284] AH01574: module proxy_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582926 2022]
[so:warn] [pid 3857284] AH01574: module proxy_balancer_module is already
loaded, skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582932 2022]
[so:warn] [pid 3857284] AH01574: module proxy_ftp_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582938 2022]
[so:warn] [pid 3857284] AH01574: module proxy_http_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582947 2022]
[so:warn] [pid 3857284] AH01574: module proxy_ajp_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.582953 2022]
[so:warn] [pid 3857284] AH01574: module proxy_connect_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.583124 2022]
[so:warn] [pid 3857284] AH01574: module proxy_html_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.583133 2022]
[so:warn] [pid 3857284] AH01574: module xml2enc_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.583235 2022]
[so:warn] [pid 3857284] AH01574: module dav_svn_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> httpd[3857284]: [Tue Aug 09 16:00:02.583246 2022]
[so:warn] [pid 3857284] AH01574: module authz_svn_module is already loaded,
skipping
Aug 09 16:00:02 <hostname> systemd[1]: Started The Apache HTTP Server.
Aug 09 16:00:02 <hostname> httpd[3857284]: Server configured, listening on:
port 8008, port 80



referring red-hat link ::
https://access.redhat.com/support/cases/#/case/03281542

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