Arch Linux

Leonid.I

Member

From: Aethyr

Registered: 2009-03-22

Posts: 999

Reproducible X server crash on core i7 and glibc 2.20

Hi,

I am experiencing a reproducible segfault of Xorg.bin just by scrolling through bookmarks in core/links in _text_ mode (run from xfce4-terminal). The error in Xorg.log is

[  1417.010] (EE) 
[  1417.010] (EE) Backtrace:
[  1417.010] (EE) 0: /usr/bin/Xorg.bin (xorg_backtrace+0x56) [0x593966]
[  1417.010] (EE) 1: /usr/bin/Xorg.bin (0x400000+0x197b69) [0x597b69]
[  1417.010] (EE) 2: /usr/lib/libc.so.6 (0x7f3a147c0000+0x339f0) [0x7f3a147f39f0]
[  1417.010] (EE) 
[  1417.010] (EE) Segmentation fault at address 0x0
[  1417.010] (EE) 
Fatal server error:
[  1417.010] (EE) Caught signal 11 (Segmentation fault). Server aborting

And relevant updated packages:

xf86-video-intel (2.99.914-4 -> 2.99.916-1)
intel-dri (10.2.6-1 -> 10.2.7-3)
glibc (2.19-5 -> 2.20-2)

However, the backtrace above makes me suspect glibc... The gpu is integrated core i7 4800.

Is anyone seeing a similar behavior?

Thanks in advance...

---

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pkill -9 systemd

SleepyToDeath

Member

Registered: 2013-04-17

Posts: 2

Re: Reproducible X server crash on core i7 and glibc 2.20

Experiencing the exactly same thing since a recent update.
Unfortunately, this happens when I am using gvim . LoL
I have core i7 and glibc 2.20-2 , too. The log also trace back to libc ( and at almostly the same address as you )
Have you fixed this?

anatolik

Developer

Registered: 2012-09-27

Posts: 458

Re: Reproducible X server crash on core i7 and glibc 2.20

Could you please provide stacktrace information? coredump tool should be able to get it to you.

If it does not have enough information, then please rebuild glibc package from ABS with 'debug' and '!strip' options, try to reproduce this problem again and check stacktrace.

---

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SleepyToDeath

Member

Registered: 2013-04-17

Posts: 2

Re: Reproducible X server crash on core i7 and glibc 2.20

I've probably solved this problem.
When I reinstall xf86-video-intel, I get a hint that intel graphics is using a experimental acceleration method. This might be the cause. I've been running well since I turned it off.
To do this ,you can create /usr/share/X11/xorg.conf.d/20-intel.conf  with following content:

Section "Device"
  Identifier  "Intel Graphics"
  Driver      "intel"
  Option      "AccelMethod" "sna"
  #Option      "AccelMethod" "uxa"
  #Option      "AccelMethod" "glamor"
EndSection

well... In fact I don't know why "sna" is uncommented, because this file is meant to turn it off and fall back to uxa. But it works on my system.