Red Hat Bugzilla – Bug 232829
kernel crach under heavy disk load
Last modified: 2008-08-02 19:40:36 EDT
Description of problem:
Kernel panic when running mencoder. I encountered a few similar cases, mostly
related to heavy disk access with DVD burning, MySQL. The server is also running
web server, mail server, bittorrent.
Version-Release number of selected component (if applicable):
MSI RS480M2-IL m/b (see
http://www.msicomputer.com/product/p_spec.asp?model=RS480M2-IL&class=mb), AMD X2
3800+, 2 SATA HDD running hardward RAID from m/b, 2 ATA-100
This problem been happening since 2.6.19, 2.6.18 also have some disk related
problem (DVD burning failed/crash), but disk access is stabled
quite often 6/10 times
Steps to Reproduce:
run mencoder to convert mpeg video (capture by WinTV250 TV capture card) to avi.
mencoder filename -ovc frameno -o frameno.avi -oac mp3lame -lameopts vbr=3
mencoder filename -ovc lavc -lavcopts vcodec=mpeg4:vpass=1 -oac copy -o filename.avi
mencoder filename -ovc lavc -lavcopts vcodec=mpeg4:vpass=2 -oac copy -o filename.avi
When burning DVD, I am using k3b, the hangs happened when verifying DVD burned.
kenerl panic, see attach screenshot
no error should encounter
I run smolt to collect my system setup, hw-uuid 72b5ecb7-7d79-4221-a16f-9e87491d3787
Created attachment 150333 [details]
kernel crash screen shot
Please try to boot in 50-line mode and capture the entire oops.
how to do that?
add vga=1 to your boot command line.
I added it to /etc/grub.conf but it didn't work for me... I think my LCD display
didn't support 50-line text mode
Everything supports 50-line boot mode. Sometimes the default font
causes problems, though. You can just rename the directory
/lib/kbd/consolefonts to /lib/kbd/consolefonts.save ... just be
sure to put it back after you are done. There will be annoying messages
about "not able to find default font" but they are harmless.
Or you could try "vga=792" for really small fonts...
It's very unstable, I rollback default kernel back to 2.6.18 now. But I wil try
to reproduce it tonight.
Thanks for the response.
Created attachment 150452 [details]
part 1 of 2 crash screen
Created attachment 150453 [details]
part 2 of 2 crash screen
BTW, should point out that even under 2.6.18. Sometime the kernel reboot (after
panic??) under heavy disk load... but 2.6.19/20 makes it worst that he panic
any news on this?
(This is a mass-update to all current FC6 kernel bugs in NEW state)
I'm reviewing this bug list as part of the kernel bug triage project, an attempt
to isolate current bugs in the Fedora kernel.
I am CC'ing myself to this bug, however this version of Fedora is no longer
Please attempt to reproduce this bug with a current version of Fedora (presently
Fedora 8). If the bug no longer exists, please close the bug or I'll do so in a
few days if there is no further information lodged.
Thanks for using Fedora!
I have not reproduce it in FC8, so please close this.