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SubjectRe: BUG() in 2.6.28-rc8-git2 under heavy load

* Vegard Nossum <vegard.nossum@gmail.com> wrote:

> On Mon, Dec 22, 2008 at 9:14 AM, Brad Campbell <brad@wasp.net.au> wrote:
> > I got a number of BUG()s in my kernel log during a RAID expansion. I did not
> > notice any ill effects, the system recovered well and has been ok since.
> > I've not had the opportunity to reboot as yet, but I thought them worth
> > reporting.
> >
> > I'm really unsure as to the relevant details on this one, so I've attached
> > everything just in case.
> >
> > I'm also seeing *loads* of [158921.049256] eth0: too many iterations (6) in
> > nv_nic_irq.
>
> This might be related. You may try to change the max_interrupt_work
> module parameter to something greater, e.g.
> forcedeth.max_interrupt_work=50 on the kernel command line or "modprobe
> forcedeth max_interrupt_work=50" in the terminal.

btw., that default limit of 6 is ridiculously low - i see it trigger on
all forcedeth boxes i have, under benign load situations - all the time.
Could someone please send a patch to Jeff that raises it to 50 ?

Ingo


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