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SubjectRe: [PATCH] x86_64 stack trace cleanup
On 2/24/06, Alistair John Strachan <s0348365@sms.ed.ac.uk> wrote:
> On Friday 24 February 2006 12:22, Andi Kleen wrote:
> > On Friday 24 February 2006 12:29, Andres Salomon wrote:
> > > That would be nice. Unfortunately, I'm trying to figure out why my dual
> > > opteron box likes to push the load up to 15 and then hang while doing
> > > i/o to the 3ware 9500S-8 card. Looks like the load/d-state processes
> > > are caused by a whole lot (well, MAX_PDFLUSH_THREADS) of pdflush
> > > processes spinning on base->lock in lock_timer_base(); not sure if
> > > that's intentional or not, but it seems rather odd. Whether the hanging
> > > is related to the high load remains to be seen.
> >
> > Sounds like some timer handler is broken. You have to find out which
> > one it is.
> >
> > > I don't see why this is a problem. Other architectures have done this
> > > for ages, without problems. I suspect most people get their backtraces
> > > from either serial console or logs, as copying them down from the screen
> > > or taking a picture of the panic is a rather large pain. It seems like
> > > you're penalizing everyone for a few select use cases.
> >
> > People submitting jpegs of photographed oopses or even badly scribbled
> > down oopses is quite common. Serial consoles are only used by a small
> > elite.
>
> I agree, I've had to report using a JPEG file on multiple occasions, because
> my mainboard has no serial ports. However, if you're using a 1280x1024
> vesafb, which is supported by most systems, you can get a lot of lines on
> screen at once..
>

true, but still, if you have two columns of output you get even more
lines on-screen (and in the cases where the oops os long that's IMHO a
good thing).

--
Jesper Juhl <jesper.juhl@gmail.com>
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