Bug 58369 – [noathlon] kernel-2.4.9 Athlon rpm Panics on reboot on Athlon

Bug 58369 - [noathlon] kernel-2.4.9 Athlon rpm Panics on reboot on Athlon

Summary:	[noathlon] kernel-2.4.9 Athlon rpm Panics on reboot on Athlon

Status:	CLOSED DUPLICATE of bug 55040

Aliases:	None

Product:	Red Hat Linux
Classification:	Retired
Component:	kernel (Show other bugs)
Sub Component:
Version:	7.2
Hardware:	i386 Linux

Priority	high Severity high
Target Milestone:	---
Target Release:	---
Assigned To:	Arjan van de Ven
QA Contact:	Brian Brock
Docs Contact:

URL:
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Depends On:
Blocks:
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Reported:	2002-01-15 06:48 EST by Need Real Name
Modified:	2005-10-31 17:00 EST (History)
CC List:	0 users

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:
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Clone Of:
Environment:
Last Closed:	2002-01-15 08:02:32 EST
Type:	---
Regression:	---
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Documentation:	---
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RHEL 7.3 requirements from Atomic Host:
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Description Need Real Name 2002-01-15 06:48:47 EST

Description of Problem:
Upon upgrade from 2.4.7 to Kernel 2.4.9 on a MSI 6378 Board Athlon Celeron 900
System,
the kernel panics on reboot. 
Its a VIA Chipset.

Version-Release number of selected component (if applicable):
2-4-9

How Reproducible:
install on athlon system and boot.

Additional Information:

this also happens on self-compiled original linux kernels from 2.4.9 on to 2.4.17.
It is a known issue of too optimistic athlon optimizations. 

2.4.7 kernel output:
Jan 10 13:51:13 runes kernel:  *** Motherboard with possibly underspec'ed
Jan 10 13:51:13 runes kernel:  *** voltage regulator or broken VIA chipset bios
detected
Jan 10 13:51:13 runes kernel:  *** Athlon optimisations disabled.

The kernel 2.4.7 complained on boot about overoptimistic VIA Chipset settings or
underspec voltage regulator and disabled athlon optimizations.

Therefore I tried building / Installing i686 kernels instead of athlon kernels.

This works stable. The system now runs a i686 compiled 2.4.17 for a while
without incident.


Suggest: If detecting VIA chipset with these issues, do not install athlon
optimized kernels

Comment 1 Arjan van de Ven 2002-01-15 08:02:27 EST

Even better idea: recently the cause was found and it turns out that some bioses
leave the chipset in debugging mode. Our next kernel will turn off that
debugging mode and all will be well. In the mean time, passing "noathlon" on the
kernel commandline will disable athlon code as well...

Comment 2 Arjan van de Ven 2002-01-18 13:40:10 EST


*** This bug has been marked as a duplicate of 55040 ***

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