Sorry, this is the kernel I use on this SL42 server: kernel-smp-2.6.9-11.EL.XFS On 3 other servers I use: kernel-2.6.9-11.EL.XFS but I haven't experienced the problem (yet) on those other three. Michael. > 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. ------- End of Original Message -------