Subject: Re: momentary freezes in -current
To: Jukka Marin <jmarin@kyyhky.embedtronics.fi>
From: Pavel Cahyna <pavel@netbsd.org>
List: netbsd-users
Date: 07/31/2006 01:05:09
On Thu, Jul 27, 2006 at 06:57:14PM +0300, Jukka Marin wrote:
> On Wed, Jul 26, 2006 at 08:03:44AM +1000, Daniel Carosone wrote:
> > Can you drop to ddb while it is 'hung', and if so what backtrace do
> > you see?
> 
> Not much.  This is after a few seconds of "no ping replies" condition:
> 
> cpu_Debugger(...)
> wskbd_translate()
> wskbd_input()
> ...
> pckbd_input(...)
> pckbcintr(c492f880,c0496d71,42,c09472c0,0) at netbsd:pckbcintr+0x65
> intr_biglock_wrapper(c48f1300,0,ce190010,30,10) at netbsd:intr_biglock_wrapper+0x18
> Xintr_ioapic_edge1() at netbsd:Xintrx_ioapic_edge1+0x9c
> --- interrupt ---
> netbsd:mpidle:
> db{0}>
> 
> (manual copy-paste, typed blind-folded ;)

bt/l ?

> 
> Doesn't tell me much.. :-(

maybe try machine cpu <n> for every CPU number <n> (this is a SMP
machine, right?) and print the backtrace for every CPU?

Pavel