Date: Tue, 16 Mar 2010 00:04:05 +0100 From: "O. Hartmann" <ohartman@mail.zedat.fu-berlin.de> To: Matthew Fleming <matthew.fleming@isilon.com> Cc: freebsd-stable@freebsd.org, "O. Hartmann" <ohartman@zedat.fu-berlin.de> Subject: Re: Fatal trap 12: page fault while in kernel mode/current process: 12 (swi2: cambio) Message-ID: <4B9EBCE5.7080303@mail.zedat.fu-berlin.de> In-Reply-To: <06D5F9F6F655AD4C92E28B662F7F853E037DDA15@seaxch09.desktop.isilon.com> References: <4B9E2DFD.2000701@zedat.fu-berlin.de> <06D5F9F6F655AD4C92E28B662F7F853E037DDA15@seaxch09.desktop.isilon.com>
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On 03/15/10 18:30, Matthew Fleming wrote: >> Since the last update and make world on Friday, 12th March I get a > crash >> 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: > 12 >> (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. > > Thanks, > matthew Hello. 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 details. 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. Regards, Oliver
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