Bug 555776 – x11-base/xorg-server-1.17.2: X crash on FlushAllOutput

• Status: RESOLVED FIXED
• Product: Gentoo Linux

[Description Naohiro Aota 2015-07-24 10:28:32 UTC]

Xorg constantly crash with the following backtrace:

[137835.042] (EE) 
[137835.043] (EE) Backtrace:
[137835.046] (EE) 0: /usr/bin/X (xorg_backtrace+0x56) [0x58ceb6]
[137835.046] (EE) 1: /usr/bin/X (0x400000+0x191199) [0x591199]
[137835.046] (EE) 2: /lib64/libc.so.6 (0x7f5069551000+0x33aa0) [0x7f5069584aa0]
[137835.046] (EE) 3: /usr/bin/X (FlushAllOutput+0xc0) [0x5907d0]
[137835.046] (EE) 4: /usr/bin/X (WaitForSomething+0x635) [0x58a265]
[137835.046] (EE) 5: /usr/bin/X (0x400000+0x38541) [0x438541]
[137835.046] (EE) 6: /usr/bin/X (0x400000+0x3c86b) [0x43c86b]
[137835.046] (EE) 7: /lib64/libc.so.6 (__libc_start_main+0xf0) [0x7f5069570fa0]
[137835.046] (EE) 8: /usr/bin/X (0x400000+0x26d4e) [0x426d4e]
[137835.046] (EE) 
[137835.046] (EE) Segmentation fault at address 0x3941e66f8
[137835.046] (EE) 
Fatal server error:
[137835.046] (EE) Caught signal 11 (Segmentation fault). Server aborting
[137835.046] (EE) 
[137835.046] (EE) 

The URL points to upstream bugz page and there's a patch to (seems to) fix the issue.

Reproducible: Always

Steps to Reproduce:
1.Run Xorg for some time
2.It eventually crash

[Comment 1 Naohiro Aota 2015-07-24 10:30:10 UTC]

Created attachment 407514 [details]
Xorg.0.log

[Comment 2 Johannes Hirte 2015-07-25 11:43:37 UTC]

upstream bugreport:
https://bugs.freedesktop.org/show_bug.cgi?id=89898

patch:
https://bugs.freedesktop.org/attachment.cgi?id=117200

[Comment 3 niks1024 2015-08-09 19:33:05 UTC]

I accidentally submitted another bug report because none were filed with xproto in their title and only now did I have the time to check all open xorg-server bugs. https://bugs.gentoo.org/show_bug.cgi?id=556578

[Comment 4 Sergei Trofimovich (RETIRED) 2015-08-09 21:25:34 UTC]

*** Bug 556578 has been marked as a duplicate of this bug. ***

[Comment 5 Sergei Trofimovich (RETIRED) 2015-08-09 22:11:25 UTC]

A bit of review history:
    http://patchwork.freedesktop.org/patch/54910/

[Comment 6 Sergei Trofimovich (RETIRED) 2015-08-22 19:24:08 UTC]

Created attachment 409888 [details, diff]
0001-os-make-sure-the-clientsWritable-fd_set-is-initializ.patch

Attaching patch proposed upstream:
    0001-os-make-sure-the-clientsWritable-fd_set-is-initializ.patch

[Comment 7 Sergei Trofimovich (RETIRED) 2015-08-22 20:13:41 UTC]

Pushed to the tree as:
    https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=ef0ca3a416ad5b5332da5eb15d388ce7f7845e53

Apologies for a long delay.