Bug 211383 - regression: kernel 2.6.18-1.2200.fc5 crashes gui applications
Summary: regression: kernel 2.6.18-1.2200.fc5 crashes gui applications
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Fedora
Classification: Fedora
Component: fontconfig
Version: 5
Hardware: ppc64
OS: Linux
medium
high
Target Milestone: ---
Assignee: Behdad Esfahbod
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2006-10-18 21:07 UTC by Mark Smith
Modified: 2007-11-30 22:11 UTC (History)
2 users (show)

Fixed In Version:
Clone Of:
Environment:
Last Closed: 2006-12-20 00:19:55 UTC
Type: ---
Embargoed:

Attachments (Terms of Use)
back trace of xclock crash (6.87 KB, text/plain)
2006-10-18 21:07 UTC, Mark Smith 		no flags Details
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Description Mark Smith 2006-10-18 21:07:22 UTC 
Description of problem:
ssh -X <ppc64host> 
# xclock  (or firefox or any gui)
with FC5 stock kernel: 2.6.15-1.2054_FC5  all is OK.
# yum update 
 and reboot with new 2.6.18-1.2200.fc5 kernel and 
 repeat, but apps crash.

Version-Release number of selected component (if applicable):
FC5  yum update to latest

How reproducible:easy
  
Actual results:
gui apps crash

Expected results:
success

Additional info:
I really did search for a duplicate but could not find any hits for kernel 
version & libc.so.6    :-)

*** buffer overflow detected ***: xclock terminated
======= Backtrace: =========
/lib/libc.so.6(__chk_fail+0x68)[0xf6c4728]
/lib/libc.so.6(__vsprintf_chk+0x0)[0xf6c38a0]
/lib/libc.so.6(_IO_default_xsputn+0xf0)[0xf63a360]
/lib/libc.so.6(_IO_vfprintf+0x14ac)[0xf60c97c]
/lib/libc.so.6(__vsprintf_chk+0xc0)[0xf6c3960]
/lib/libc.so.6(__sprintf_chk+0x68)[0xf6c3878]
/usr/lib/libfontconfig.so.1[0xfded094]

I believe other symptoms are vnc sessions coming up blank (with color, not 
black, but no desktop)
Comment 1 Mark Smith 2006-10-18 21:07:22 UTC 
Created attachment 138834 [details]
back trace of xclock crash
Comment 2 Mark Smith 2006-10-31 23:48:21 UTC 
This easily recreates even after re-installing FC5-gold again.
With "yum update" I notice that there are 2 kernels installed, whereas only 1 
removed from the previous update.

=============================================================================
 Package                 Arch       Version          Repository        Size
=============================================================================
Installing:
 kernel                  ppc64      2.6.18-1.2200.fc5  updates            18 M
 kernel                  ppc        2.6.18-1.2200.fc5  updates            16 M
Removing:
 kernel                  ppc        2.6.17-1.2187_FC5  installed          43 M

the ppc64 kernel is what this system runs on.
Could there be some incompatibility between X and the ppc64 version?
Comment 3 Behdad Esfahbod 2006-12-12 20:30:24 UTC 
God, oh god, why me!
Comment 4 Behdad Esfahbod 2006-12-12 20:32:44 UTC 
Oh, ok, now I see.  It's in fontconfig.  Ok, I know what the problem is. 
Halfline, do you have that ppc64 patch to fontconfig around?
Comment 5 Ray Strode [halfline] 2006-12-12 20:53:26 UTC 
attachment 134041 [details] (from bug 202152)
Comment 6 Behdad Esfahbod 2006-12-13 02:28:58 UTC 
Ok, I've built a package, should hit Updates Testing tomorrow.  Can you test
please Mark?
Comment 7 Mark Smith 2006-12-14 02:36:20 UTC 
sweet!   fixed it. thanks!  specifically fontconfig-2.3.94-2 from 
updates-testing repository
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