Fatal trap 12: page fault while in kernel mode/current process:
12 (swi2: cambio)
ohartman at mail.zedat.fu-berlin.de
Thu Mar 18 21:02:50 UTC 2010
On 03/16/10 00:04, O. Hartmann wrote:
> On 03/15/10 18:30, Matthew Fleming wrote:
>>> Since the last update and make world on Friday, 12th March I get a
>>> on one of my FreeBSD SMP boxes (it is always the same core message),
>>> saying something about
>>> Fatal trap 12: page fault while in kernel mode [...] current process:
>>> (swi2: cambio)
>> Can you show the stack traceback from the kernel core?
>> We had a problem a while ago at Isilon that I can't tell if it's
>> related. In our case, the camisr() routine was called after panic(9)
>> started and before the halt of other processors. This did Bad
>> Things(TM) since the mtx_lock is a no-op after panicstr is set.
>> We solved it locally by wrapping camisr() in a local cambio_swi()
>> routine that only called camisr(NULL) when panicstr == NULL.
> I will do as soon as possible. The box is in production at the moment
> and I've less time to put everything into debugging to provide more
> Just in case: does the kernel automatically save the screen with the
> dump information? If not, I have no other terminal facility to get a
> dump via the classical way.
Since yesterday, this problem went away! This is mystical. After
deactivating radeon.ko and the virtual box stuff I tried again with a
new build of world and - voila! - everything worked again. This is
More information about the freebsd-stable