Re: Kernel panics on raw I/O stress test

Andrea Arcangeli (andrea@suse.de)
Thu, 19 Apr 2001 19:33:22 +0200


On Thu, Apr 19, 2001 at 09:01:53PM +0900, Takanori Kawano wrote:
>
> When I ran raw I/O SCSI read/write test with 2.4.1 kernel
> on our IA64 8way SMP box, kernel paniced and following
> message was displayed.

Could you try again with 2.4.4pre4 plus the below patch?

ftp://ftp.us.kernel.org/pub/linux/kernel/people/andrea/patches/v2.4/2.4.4pre2/rawio-3

You should experience also a quite noticeable improvement on both CPU usage and
disk I/O (also depends on the max size of a I/O request for your hardware disk
controller).

Andrea
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