Bug 491500 - assertion failure in intel Xorg driver, console locked
assertion failure in intel Xorg driver, console locked
Status: CLOSED RAWHIDE
Product: Fedora
Classification: Fedora
Component: xorg-x11-drv-i810 (Show other bugs)
10
x86_64 Linux
low Severity high
: ---
: ---
Assigned To: X/OpenGL Maintenance List
Fedora Extras Quality Assurance
:
Depends On:
Blocks:
  Show dependency treegraph
 
Reported: 2009-03-22 02:49 EDT by Andrei Gaponenko
Modified: 2009-04-20 16:57 EDT (History)
1 user (show)

See Also:
Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of:
Environment:
Last Closed: 2009-04-20 16:57:11 EDT
Type: ---
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)
Photo of the error screen (3.37 MB, image/png)
2009-03-22 02:49 EDT, Andrei Gaponenko
no flags Details
Log file of the surviving X server (the one that was started first) (36.55 KB, application/octet-stream)
2009-03-22 02:50 EDT, Andrei Gaponenko
no flags Details
Log file of the crashed X server (26.04 KB, application/octet-stream)
2009-03-22 02:51 EDT, Andrei Gaponenko
no flags Details
lspci -vvv (23.47 KB, text/plain)
2009-03-22 02:52 EDT, Andrei Gaponenko
no flags Details

  None (edit)
Description Andrei Gaponenko 2009-03-22 02:49:17 EDT
Created attachment 336187 [details]
Photo of the error screen

Description of problem:

Hi,

An attempt to use second X server (via the "Switch user" Gnome or KDE
menu or otherwise) locks console on my system.  Usually I can revive
the keyboard by ssh-ing into the machine and issuing "chvt <N>".  This
is what I did to demonstrate the problem in a simple setup:

Boot into runlevel 3.

Login (non-root) onto tty2 and tty3

[tty2] $ xinit /usr/bin/xterm -- /usr/bin/X :2

Works as expected.  Switch to tty3.

[tty3] $ xiint /usr/bin/xterm -- /usr/bin/X :3

OK, got an xterm on :3

An attempt to switch to the server on :2 gives black screen.
Can't switch to any tty via keyboard now.  Connected 
to the system via ssh, did "chvt 1" as root.  The console is 
back to life.  On tty3, there is the following error message:

X: intel_bufmgr_fake.c:1372: intel_bufmgr_fake_evict_all: Assertion
`((&bufmgr_fake->fenced)->next == (&bufmgr_fake->fenced))' failed.
xterm: fatal IO error 11 .... on X server ":3.0"
xinit: connection to X server lost.

I am attaching a photo of the error screen, log files of the two X
servers, and output of "lspci -vvv".  The machine is a Lenovo x200s
laptop with Intel GMA 4500MHD.  Fedora 10 with current updates,
kernel-2.6.27.19-170.2.35.fc10.x86_64
No xorg.conf


Version-Release number of selected component (if applicable):
xorg-x11-drv-i810-2.5.0-4.fc10.x86_64

How reproducible:  always

Steps to Reproduce: start 2 X servers
  
Actual results: server crash, console locked

Expected results: both X servers working

Additional info:
Comment 1 Andrei Gaponenko 2009-03-22 02:50:38 EDT
Created attachment 336188 [details]
Log file of the surviving X server (the one that was started first)
Comment 2 Andrei Gaponenko 2009-03-22 02:51:24 EDT
Created attachment 336189 [details]
Log file of the crashed X server
Comment 3 Andrei Gaponenko 2009-03-22 02:52:05 EDT
Created attachment 336190 [details]
lspci -vvv
Comment 4 Andrei Gaponenko 2009-04-20 16:57:11 EDT
This problem is fixed in 

Fedora-11-Snap1-x86_64-Live-KDE

I could start up, and switch between, two X servers.
Closing this bug.

Andrei

Note You need to log in before you can comment on or make changes to this bug.