Date: Thu, 11 Jan 2007 13:40:48 -0500 From: John Baldwin <jhb@freebsd.org> To: freebsd-stable@freebsd.org Cc: Jeremy Chadwick <koitsu@freebsd.org> Subject: Re: Interrupt (SCSI?) hang on 4.x Message-ID: <200701111340.48708.jhb@freebsd.org> In-Reply-To: <20070102153608.GA78405@icarus.home.lan> References: <20070102153608.GA78405@icarus.home.lan>
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On Tuesday 02 January 2007 10:36, Jeremy Chadwick wrote: > Yes, I know 4.11 is EOL'd at the end of this month, but hopefully > someone can shed some light on this problem anyways. I simply don't > have the knowledge of what's going on on a low-level to determine > the cause. > > I do have serial console on this box, and after enabling some > debugging for the ahc(4) driver a few months back, was able to > get something intelligent out of the system regarding SCBs this > morning. This may not be useful (or the cause), though. I also > cannot enable drop-to-DDB-on-serial-break because our Portmaster 2 > has been known to send a serial break on rare occasion. :-( > > Every so often (sometimes hours, sometimes months -- usually months), > the 4.11 box we have "locks up" in the sense that both NICs on the > box stop working, and the SCSI controller also appears hung. This > problem has existed for a couple years; it's not specific to 4.11 > (versus 4.10 or 4.9). Can you try a RELENG_4 kernel? I know of at least one fix (in sys/i386/isa/clock.c) since 4.11 was released that might help you out. -- John Baldwin
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