Bug 341369

Summary:	x11-base/xorg-server-1.9.0 loops in autoConfigDevice
Product:	Gentoo Linux	Reporter:	Robert Bradbury <robert.bradbury>
Component:	[OLD] Core system	Assignee:	Gentoo X packagers <x11>
Status:	RESOLVED OBSOLETE
Severity:	normal
Priority:	High
Version:	unspecified
Hardware:	All
OS:	Linux
URL:	N/A
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	emerge --info Edited stack trace of core dump

Description Robert Bradbury 2010-10-16 19:04:17 UTC

xorg-server-1.9.0 has an infinite loop which core dumps with a SEGV (stack overflow) in autoConfigDevice().

Reproducible: Sometimes

Steps to Reproduce:
1. Start X server with a previously working (1.8.2) xorg-server xorg.conf.
2. X terminals do not start and it is impossible to switch to simple VT terminals.

Actual Results:  
A large core dump is produced (due to stack overflow).

Expected Results:  
X server should not produce stack overflows and should not core dump.

May have been due to the fact that the evdev driver was not recompiled after upgrade to 1.9.  The evdev driver was not loaded and any mouse/keyboard drivers fell back to the non-evdev drivers.

Comment 1 Robert Bradbury 2010-10-16 19:04:51 UTC

Created attachment 250929 [details]
emerge --info

Comment 2 Robert Bradbury 2010-10-16 19:12:18 UTC

Created attachment 250933 [details]
Edited stack trace of core dump

Shows loop involving autoConfigDevice().

It would be very helpful if xdm could limit the stack size of Xorg processes so they do not produce large core dumps/lengthy stack traces.  Xorg stacks should not get "infinitely" large (174,000+ calls) except when something runs amok.

Comment 3 Matt Turner gentoo-dev

2015-02-22 21:50:05 UTC

Hopefully fixed long ago.