Hi,

I currently use the SL4 XFS kernel in the sl-contrib and have experienced a
couple of times a hard crash on my server saying:

do_IRQ: stack overflow: 284
 [<c01078a2>] do_IRQ+0x44/0x130

After various google search on "xfs 4k stack" etc and RHEL4, it turns out that
RH have 4k stacks in the kernel while XFS requires 8k stacks. Links similar to
the following will show up in google about this:

http://www.ussg.iu.edu/hypermail/linux/kernel/0407.3/1088.html

http://www.issociate.de/board/post/210876/SATA_RAID5_kernel_hang_on_2.6.11-1.14_FC3.html

It seems though that Red Hat also disabled the facility to allow people to
increase the stack size when building their own kernels (I read that in one of
the posts), so I'm wondering, with the people that built the SL4 XFS kernels,
did they enable 4k or 8k stacks when compiling the kernel?

I'm at a stage now where I'm likely going to have to get rid of XFS and go
back to ext3 because of this 4k stack issue causing my server to hard crash.

Thanks.

Michael.