lkml.org 
[lkml]   [2001]   [Apr]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectNew loopback bug
I've encountered a loopback bug on kernel-2.4.3+international_patch.  I
haven't been able to pin down what the bug is exactly, but these are the
conditions under which it manifests:

1. connect file to loopback device
2. build fs on loopback device
3. mount fs and use it
4. read the file
5. lockup, about 1 out 5 times.

The lockup occurs randomly and seems to have random effects. Sometimes
user-space scheduling is lost and sometimes there is a total lockup. This
is all I could extract from /var/log/messages in several crashes:

Apr 9 04:04:48 gs176 kernel: kernel BUG at dcache.c:658!
Apr 9 04:04:48 gs176 kernel: invalid operand: 0000
Apr 9 04:04:48 gs176 kernel: CPU: 0

-John

Stats:
Linux version 2.4.3 + patch-int-2.4.3.1
compiler - redhat's hacked 2.96 (I'll try gcc->kgcc next.)
Also appeared with 2.4.2 + patch-2.4.3-pre4 + patch-int-2.4.0.3
compiler egcs-1.1.2

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:24    [W:0.018 / U:23.776 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site