Arch Linux

Izzette

Member

Registered: 2015-10-02

Posts: 25

Keep encountering segfault on Apache proxy server

I think this is a bug with Arch or upstream, but here it is:

Mar 18 21:08:42 izzette kernel: httpd[11557]: segfault at 20 ip 00007f7fef68720c sp 00007f7fd14517e0 error 4 in libaprutil-1.so.0.5.4[7f7fef67d000+27000]
Mar 18 21:09:13 izzette kernel: httpd[12191]: segfault at 7f7f00000012 ip 00007f7fef688570 sp 00007f7fcbffa6d8 error 4 in libaprutil-1.so.0.5.4[7f7fef67d000+27000]
Mar 18 21:32:01 izzette kernel: httpd[21025]: segfault at 18d91800018 ip 00007f7fef233ab0 sp 00007f7fd1c52888 error 4 in libpthread-2.25.so[7f7fef22a000+19000]
Mar 18 21:57:25 izzette kernel: httpd[23986]: segfault at 7f7f00000009 ip 00007f7fef689695 sp 00007f7fcb7f96a0 error 6 in libaprutil-1.so.0.5.4[7f7fef67d000+27000]

I'm also getthing these weird error messages in my log for the vhost.

[Sat Mar 18 21:42:31.158446 2017] [proxy_http:error] [pid 24272] (9)Bad file descriptor: [client 192.168.2.181:52882] AH01110: error reading response
[Sat Mar 18 21:44:01.589062 2017] [proxy_http:error] [pid 25605] (70008)Partial results are valid but processing is incomplete: [client 192.168.2.181:55020] AH01110: error reading response
[Sat Mar 18 21:44:01.589072 2017] [proxy_http:error] [pid 25605] (70008)Partial results are valid but processing is incomplete: [client 192.168.2.181:55020] AH01110: error reading response
[Sat Mar 18 21:44:51.713201 2017] [proxy_http:error] [pid 21078] (9)Bad file descriptor: [client 192.168.2.181:45662] AH01102: error reading status line from remote server ubuntu-owncloud.izzette.com:80
[Sat Mar 18 21:44:55.567660 2017] [proxy_http:error] [pid 21078] (9)Bad file descriptor: [client 192.168.2.181:45662] AH01102: error reading status line from remote server ubuntu-owncloud.izzette.com:80
[Sat Mar 18 21:56:03.462723 2017] [proxy_http:error] [pid 21169] (9)Bad file descriptor: [client 192.168.2.181:41532] AH01102: error reading status line from remote server ubuntu-owncloud.izzette.com:80
[Sat Mar 18 21:56:04.733076 2017] [proxy_http:error] [pid 21169] (20014)Internal error (specific information not available): [client 192.168.2.181:41532] AH01102: error reading status line from remote server ubuntu-owncloud.izzette.com:80
[Sat Mar 18 21:57:22.501743 2017] [proxy_http:error] [pid 21169] (11)Resource temporarily unavailable: [client 192.168.2.181:41532] AH01102: error reading status line from remote server ubuntu-owncloud.izzette.com:80
[Sat Mar 18 21:57:22.501747 2017] [proxy_http:error] [pid 21169] (11)Resource temporarily unavailable: [client 192.168.2.181:41532] AH01102: error reading status line from remote server ubuntu-owncloud.izzette.com:80
[Sat Mar 18 21:57:24.371771 2017] [proxy_http:error] [pid 21169] (20014)Internal error (specific information not available): [client 192.168.2.181:41532] AH01102: error reading status line from remote server ubuntu-owncloud.izzette.com:80

This happens repeatedly when I make requests for a particular backend (a nextCloud server), the number and size of requests are somewhat higher than it's other backends, so that might be related.  I'm using mpm_prefork, and not using ProxyHTMLUrlMap or the likes for this particular backend.  It's really frustrating, I have to reload the page and/or clear the cache several times in order to get all the requests to go through.  It seems like this is the only backend where this issue occurs.