Date: Fri, 20 Aug 2004 15:19:40 -0700 From: Nate Lawson <nate@root.org> To: Peter Wemm <peter@wemm.org> Cc: cvs-all@FreeBSD.org Subject: Re: cvs commit: src/sys/kern vfs_subr.c Message-ID: <412678FC.6040009@root.org> In-Reply-To: <200408201516.32748.peter@wemm.org> References: <200408201921.i7KJLl3J035751@repoman.freebsd.org> <200408201516.32748.peter@wemm.org>
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Peter Wemm wrote: > On Friday 20 August 2004 12:21 pm, Don Lewis wrote: > >> Modified files: >> sys/kern vfs_subr.c >> Log: >> Don't attempt to trigger the syncer thread final sync code in the >> shutdown_pre_sync state if the RB_NOSYNC flag is set. This is the >> likely cause of hangs after a system panic that are keeping crash >> dumps from being done. > > > The hang that I saw was because interrupts are broken (they just stop > for no apparent reason) and the ata_shutdown sync hooks are not in > polled mode (which is correct - interrupts are supposed to be enabled > at this point, and are for normal shutdowns). Did you got the "interrupt storm for xxx" message before this happened? I think the check for this is too sensitive -- it is triggered on resume by my an0 card. That's the only way I've seen interrupts stop occuring during normal operation. -Nate
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