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Bug 16781 - gentoo-sources kernel 2.4.20-r1 panic with sched.c
Summary: gentoo-sources kernel 2.4.20-r1 panic with sched.c
Status: RESOLVED LATER
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: x86 Linux
: High major (vote)
Assignee: x86-kernel@gentoo.org (DEPRECATED)
URL: http://forums.gentoo.org/viewtopic.ph...
Whiteboard:
Keywords:
: 416837 (view as bug list)
Depends on:
Blocks:
 
Reported: 2003-03-03 20:07 UTC by John McCreight
Modified: 2012-05-21 02:18 UTC (History)
3 users (show)

See Also:
Package list:
Runtime testing required: ---


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Description John McCreight 2003-03-03 20:07:28 UTC
Upon booting the system, after the kernel identifies each of my 4 IDE devices, 
it crashes immediately telling me about a BUG in sched.c.  (Please see the 
included URL for a bit more info on this.)  The bug also happens for others on 
various systems, though none of us can seem to discern why.  Also, I tried 
compiling a kernel from scratch with default options and a kernel with all 
SCSI emulation and support removed, which did nothing against this problem.  

Reproducible: Always
Steps to Reproduce:
1. Compile a 2.4.20-r1 kernel
2. Boot it under certain hardware (A guess)
Actual Results:  
The kernel panics after booting into the new kernel.

Expected Results:  
Booted up normally.

My system is not overclocked.  My current system is a Tyan TigerMP, standard 
Athlon MPs (1800), 512MB ECC DDR. (checked with memtest86, no errors.)  The 
hard drive is a Western Digital 80 gigabyte JB series.  Kernel 2.4.19r10 works 
with no errors at all, and changing it's configuration around doesn't hurt 
anything.  The problem was introduced somewhere in .20.  

The URL http://forums.gentoo.org/viewtopic.php?t=38357 includes some extra 
info, including my .config.
Comment 1 Brandon Low (RETIRED) gentoo-dev 2003-03-03 21:00:48 UTC
Hmm... can you test with XFS-sources and or lolo-sources (as your time and resources allow?) that would be a great help in diagnosing this.
Comment 2 John McCreight 2003-03-03 21:16:04 UTC
Sure, I'm testing the other sources now, expect an update shortly.
Comment 3 John McCreight 2003-03-03 22:16:26 UTC
I just tested the lolo sources, and they include the exact same problem as the gentoo-sources.  Same error with lun0, during the partition check:

Partition check: /dev/ide/host0/bus0/target0/lun0: p1 p2 p3
/dev/ide/host0/bus0/target1/lun0:kernel BUG at sched.c:1103!

Testing XFS next...
Comment 4 John McCreight 2003-03-03 22:48:40 UTC
Just testing the XFS sources as well, they work as expected, no problems at all.  Just the lolo and gentoo sources appear to be failing.  Hope this helps!
Comment 5 Brandon Low (RETIRED) gentoo-dev 2003-03-03 23:54:40 UTC
I'd assume that your IDE controller is probably not supported by the 'old IDE core' the xfs-sources have the 'new IDE core' in them.  Until you see a note in the gentoo-sources changelog to the effect of includingt he new IDE core, OR they are updated to a 2.4.21 version, stick tot he XFS sources on this hardware.  Thanks!
Comment 6 John McCreight 2003-03-04 00:17:41 UTC
If I could get a quick clarification, I'm wondering why the .19-r10 gentoo sources are able to work?  Aren't they using the "old" IDE core as well?  (Pardon my cluelessness, just was thinking aloud and that came up.)  I'm aware there are changes in the code...just was wondering if you had any specific ideas about what changed.  Thanks right back at you for the quick response!

I'm more than happy to build stuff anyway...it's not a problem. :)
Comment 7 Bob Johnson (RETIRED) gentoo-dev 2003-03-04 07:09:32 UTC
Alot of changes to ide were made from 2.4.19 > 2.4.20
as it goes.. broke some and fixed some.
2.4.21 should be back in shape
Comment 8 ryan 2003-03-25 08:21:05 UTC
I'm experiencing the same problem.  I tried XFS sources and they failed too.
Comment 9 Michael Weber (RETIRED) gentoo-dev 2012-05-21 02:17:29 UTC
*** Bug 416837 has been marked as a duplicate of this bug. ***
Comment 10 Michael Mol 2012-05-21 02:18:18 UTC
*** Bug 416837 has been marked as a duplicate of this bug. ***