On Tue, Oct 16, 2007 at 07:00:37PM +0100, Andy Whitcroft wrote: > On Tue, Oct 16, 2007 at 11:46:31AM +0200, Ingo Molnar wrote: > > > > * Ingo Molnar <[EMAIL PROTECTED]> wrote: > > > > > > > > * Kamalesh Babulal <[EMAIL PROTECTED]> wrote: > > > > > > > While running kernbench with the 2.6.23-git8 following oops is > > > > produced > > > > > > > > Unable to handle kernel NULL pointer dereference at 0000000000000010 > > > > RIP: > > > > [<ffffffff8033f347>] __rb_rotate_left+0x7/0x70 > > > > > > that looks nasty ... > > > > > > and -git8 should have the v2.6.23 scheduler code in essence. > > > > ah, this is likely with the recent scheduler commits included as well, > > right? > > > > if it's reproducable, could you try with group scheduling disabled, i.e. > > with: > > > > # CONFIG_FAIR_GROUP_SCHED is not set > > > > as that would be the main suspect for such type of a crash. > > Ok, preliminary results with this disabled seem to get us past > kernbench. I am rerunning with it enabled to confirm it blammo's.
A rerun with it enabled however ran to completion. So I think we have to assume this is at best not 100% reproducible. Seems that more directed testing is going on now. -apw - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
