Red Hat Bugzilla – Bug 56700
kernel-2.4.9-13 panic on shutdown
Last modified: 2007-04-18 12:38:25 EDT
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:
Created attachment 38504 [details] dmesg output
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.
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)
BIOS