Bug 6591

Summary:

xserver crash with AMD64 (with vesa, fbdev, or radeon), at miFillPolyHelper.

Product:

xorg

Reporter:

Maciej Cencora <cencer>

Component:

Server/General

Assignee:

Maciej Cencora <cencer>

Status:

RESOLVED WORKSFORME

QA Contact:

Xorg Project Team <xorg-team>

Severity:

critical

Priority:

highest

CC:

erik.andren

Version:

6.9.0

Keywords:

have-backtrace

Hardware:

x86 (IA32)

OS:

Linux (All)

Whiteboard:

i915 platform:

i915 features:

Attachments:

Description	Flags
xorg.conf	none
Xorg.log - crash log	none
lspci -v	none
full backtrace	none

Description Maciej Cencora 2006-04-14 01:09:47 UTC

Slamd64 with linux 2.6.16.1 on AMD64
X server crashes during normal work randomly (sometimes without backtrace in
logs). Sometimes I can work for couple of hours without a crash, but sometimes X
crashes very often (more than 2 times per 5 minutes). I realized that it crashes
more often when I want to select group of icons with mouse (creating a
rectagonal selection - or whatever it is called :P)

I don't think it is related to hardware or some drivers cause I got the same
with linux-2.4.32 kernel, and other drivers(vesa, fbdev, currently radeon).

Backtrace:
0: /usr/X11R6/bin/X(xf86SigHandler+0x92) [0x448902]
1: /lib64/tls/libc.so.6 [0x2b7a29982340]
2: /usr/X11R6/bin/X(miFillPolyHelper+0x2c4) [0x5439e4]
3: /usr/X11R6/bin/X(miWideDash+0x77e) [0x5477be]
4: /usr/X11R6/bin/X(miPolyRectangle+0x1b3) [0x542503]
5: /usr/X11R6/bin/X [0x525f22]
6: /usr/X11R6/bin/X(ProcPolyRectangle+0x18f) [0x483b8f]
7: /usr/X11R6/bin/X(Dispatch+0x196) [0x487b26]
8: /usr/X11R6/bin/X(main+0x409) [0x494619]
9: /lib64/tls/libc.so.6(__libc_start_main+0xdb) [0x2b7a2996f4cb]
10: /usr/X11R6/bin/X [0x430b9a]

Sorry for my english and any mistakes, that's my first bugreport :P

Comment 1 Erik Andren 2006-04-16 16:48:05 UTC

Please post your xorg.conf and your xorg.log after the crash.

Comment 2 Maciej Cencora 2006-04-16 18:04:08 UTC

Created attachment 5330 [details]
xorg.conf

Comment 3 Maciej Cencora 2006-04-16 18:21:16 UTC

Created attachment 5331 [details]
Xorg.log - crash log

Comment 4 Maciej Cencora 2006-04-16 18:28:03 UTC

Also I realized that when I am in 4th runlevel (in other distros it is 5), X
server crashes and restarts (because of kdm). But when I run X server in 3rd
runlevel it hangs whole computer(I must reset comp manually or with Magic SysRq)
without backtrace in Xorg.log (there is only first line: "Backtrace:" and
nothing more).

Comment 5 Erik Andren 2006-04-16 18:59:43 UTC

There's a trick around it: Log in remotely via SSH and attach gdb to the X
process to get the backtrace.

Comment 6 Michel Dänzer 2006-04-17 00:44:43 UTC

Does it also happen if you don't override the amount of video RAM using the
VideoRam directive? The drivers usually know exactly how much they can use.

Comment 7 Maciej Cencora 2006-04-17 00:54:07 UTC

Yes, it also crashes if I don't override VideoRAM.

Comment 8 Maciej Cencora 2006-05-23 23:20:38 UTC

I tested it on other graphics(S3 Virge PCI) and got the same.
Maybe some hardware information will be useful:
MSI K8N Neo3-F (with the newest BIOS)
AMD Sempron 64bit(s.754)
2x512MB RAM OEM
ABIT Radeon X600Pro HDTV 256MB
SB Live!
WiFi Dlink DWL-510
Maxtor 60GB PATA
DVD-RW LG GSA-4167

I don't know if it's related but sometimes when doing this selection, some parts
of that dotted rectagon stays on desktop, and if I want to get rid of it I have
to refresh desktop.

Comment 9 Maciej Cencora 2006-05-23 23:22:39 UTC

Created attachment 5720 [details]
lspci -v

Comment 10 Maciej Cencora 2006-07-11 07:45:03 UTC

Created attachment 6189 [details]
full backtrace

Sorry for the delay, but I don't have two PC's to get backtrace using ssh (but
I managed using multi-seat configuration. It doesn't work - at all - on R6.9
version, but it works - with some hangs, crashes etc - on R7.1)
I compiled R7.1 from sources, and found that it crashes too. So I compiled it
again with -g -O0 flags, applied multiseat configuration and got full
backtrace.

I don't know what do miWideDash/miWideDashSegment/miFillPolyHelper functions
do, so please send me link to a doc or small description and maybe I'll be able
to find the bug and write a patch.

I've forgotten to write that it must be 64-bit arch related bug because I have
no crashes when using slackware.

Comment 11 Daniel Stone 2007-02-27 01:31:29 UTC

Sorry about the phenomenal bug spam, guys.  Adding xorg-team@ to the QA contact so bugs don't get lost in future.

Comment 12 Jeremy Huddleston Sequoia 2011-10-15 11:43:37 UTC

Sorry for the slow feedback here.  This bug is really old, so I'm going to 
close it.  If you are still experiencing a problem, please reopen with a newer 
backtrace, and I will take a look.

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