Date: Mon, 15 Mar 2010 10:30:37 -0700 From: "Matthew Fleming" <matthew.fleming@isilon.com> To: "O. Hartmann" <ohartman@zedat.fu-berlin.de>, <freebsd-stable@freebsd.org> Subject: RE: Fatal trap 12: page fault while in kernel mode/current process: 12 (swi2: cambio) Message-ID: <06D5F9F6F655AD4C92E28B662F7F853E037DDA15@seaxch09.desktop.isilon.com> In-Reply-To: <4B9E2DFD.2000701@zedat.fu-berlin.de> References: <4B9E2DFD.2000701@zedat.fu-berlin.de>
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> 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 >=20 > 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 =3D=3D NULL. Thanks, matthew
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