Not an AMD64 specific thing then?
On Thu, 2008-07-03 at 15:03 +0200, Henning Brauer wrote:
> * Insan Praja SW <[EMAIL PROTECTED]> [2008-06-24 18:32]:
> > Hi Misc@,
> > I currently caught a kernel panic that says:
> > uvm_fault(0xffffffff 80b7b0e0, 0x0, 0, 1) -> e
> > kernel : page fault trap, code=0
> > Stopped at pf_state_tree_RB_REMOVE_COLOR + 0x1C0: cmpl $0x1,0x40(%rsi)
> > ddb {0}> trace
>
> this problem has been reported by a few people, but so far we're unable
> to track it down or even reproduce. it would help enourmously if we
> knew WHEN this was introduced. so if someone who can reproduce this can
> compile kernels going backwards day by day (cvs -D) and then ideally even
> spot the commit that introduced it, that would help a LOT. yes, it is a
> lot of work :(
>
> in short, it seems some element of the pf state table (which is an RB
> tree, pf_state_tree) gets freed or overwritten before being removed
> from the RB tree, or something tries to remove it before it was
> inserted. Ryan and I have been reading the code up and down without
> being able to spot such a case yet.
