Bug 56700

Summary: kernel-2.4.9-13 panic on shutdown
Product: [Retired] Red Hat Linux Reporter: Thomas Ribbrock <emgaron>
Component: kernelAssignee: Arjan van de Ven <arjanv>
Status: CLOSED WONTFIX QA Contact: Brock Organ <borgan>
Severity: medium Docs Contact:
Priority: medium    
Version: 7.2CC: emgaron
Target Milestone: ---   
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Hardware: i586   
OS: Linux   
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Fixed In Version: Doc Type: Bug Fix
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Last Closed: 2003-06-07 22:49:53 UTC Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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dmesg output none

Description Thomas Ribbrock 2001-11-25 13:58:37 UTC 
From Bugzilla Helper:
User-Agent: Mozilla/5.0 (X11; U; Linux i586; en-US; rv:0.9.6) Gecko/20011120

Description of problem:
After updating the kernel from 2.4.7-10 to 2.4.9-13, I get a kernel panic
when running shutdown -h. The panic occurs right at the end of the shutdown
cycle while running "halt" (after unmounting files). This is on an AMD
K6-2/350 machine, VIA MVP3 chipset. The board is an AT board with AT power
supply, hence, there is no possibility ofatuomatically shutting the machine
down via software. I tried different BIOS APM/PM settings as well with no
difference. I had no such problems with kernel-2.4.7-10.

Version-Release number of selected component (if applicable):
kernel-2.4.9-13

How reproducible:
Always

Steps to Reproduce:
1.as root, run "shutdown -h now"
2.at end of shutdown,kernel panics

	

Expected Results:  Message "Power down." as with kernel-2.4.7-10

Additional info:
Comment 1 Thomas Ribbrock 2001-11-25 14:01:23 UTC 
Created attachment 38504 [details]
dmesg output
Comment 2 Thomas Ribbrock 2001-11-26 01:19:13 UTC 
Workaround:
It's possible to avoid the kernel panic by recompiling the kernel with APM/PM
disabled, as I just found out. However, due to the time it takes to do so,
having an RPM for non-APM kernel might be an idea.
Comment 3 Arjan van de Ven 2001-11-26 07:49:53 UTC 
Can you try passing "apm=realmode-power-off" as kernel commandline argument ?
That changes the way a poweroff is tried.

Also, if that doesn't work,

"apm=off" will disable apm

(both can be added to the /boot/grub/grub.conf file to the line with vmlinuz in it)
Comment 4 Alan Cox 2003-06-07 22:49:53 UTC 
BIOS