Date: Wed, 13 Jun 2007 22:43:33 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Yong Rao <yrao@force10networks.com> Cc: freebsd-smp@freebsd.org, Jagjit Choudhary <jagjit@force10networks.com> Subject: Re: FreeBSD-6.2, SMP, coredump -- fatal trap 12 : page fault while in kernel mode, current process: (swi1:net) Message-ID: <20070614024333.GA70019@rot13.obsecurity.org> In-Reply-To: <1818EFE74C4A8A4292E05835D378EC66130055@EXCH-CLUSTER-07.force10networks.com> References: <1818EFE74C4A8A4292E05835D378EC66130055@EXCH-CLUSTER-07.force10networks.com>
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On Wed, Jun 13, 2007 at 07:26:51PM -0700, Yong Rao wrote: > Hello, > > > > Recently, in developing our driver, we found the core dump did not work > on the FBSD OS 6.2. It hung at the beginning of core dump when crash > happened. This can happen when the panic involves the storage subsystem, or if something else is performing I/O (i.e. holding a relevant lock) at the time of panic. Online debugging using ddb helps a lot. Kris
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