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SubjectRe: [BUG] 2.6.23-git18 Kernel oops in sg helpers
On Tue, Oct 23 2007, Kamalesh Babulal wrote:
> Hi,
>
> Kernel oops is triggered while running fsx-linux test, followed by cpu softlock
> over the AMD box
>
> Unable to handle kernel NULL pointer dereference at 0000000000000018 RIP:
> [<ffffffff8021f2f6>] gart_map_sg+0x26c/0x406
> PGD 10185b067 PUD 10075b067 PMD 0
> Oops: 0002 [1] SMP
> CPU 3
> Modules linked in:
> Pid: 18676, comm: fsx-linux Not tainted 2.6.23-git18-autokern1 #1
> RIP: 0010:[<ffffffff8021f2f6>] [<ffffffff8021f2f6>] gart_map_sg+0x26c/0x406
> RSP: 0000:ffff810181edf948 EFLAGS: 00010002

Can you check where gart_map_sg+0x26c is at? Make sure you have
CONFIG_DEBUG_INFO defined, then do:

$ gdb vmlinux
$ l *gart_map_sg+0x26c

Thanks!

--
Jens Axboe

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