Date: Mon, 17 May 2004 11:12:53 -0700 (PDT) From: Nate Lawson <nate@root.org> To: Kevin Oberman <oberman@es.net> Cc: freebsd-acpi@FreeBSD.org Subject: Re: ACPI interrupt storms during shutdown Message-ID: <20040517111058.D20078@root.org> In-Reply-To: <20040514164013.0CE795D0D@ptavv.es.net> References: <20040514164013.0CE795D0D@ptavv.es.net>
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On Fri, 14 May 2004, Kevin Oberman wrote: > For about two week my laptop (IBM T30) has started reporting stray > interrupts from acpi0 or an interrupt storm on IRQ9. This is really not > a problem as it happens right at the end of the shutdown after disks are > synced and seems to start as the standard background processes are > terminated. It usually is reported after vnlru and bufdaemon terminate, > but before syncer terminates. (It's very hard to tell much as the screen > blanks immediately.) It may be starting as bufdaemon is terminated. > > This is not causing me any problems, but I wanted to mention it as it > certainly does not seem right. Yep, I've got that too. What happens is a series of GPEs occur during the AcpiTerminate() process. I'll be changing the ACPI shutdown process after I do some more debugging of the source of the GPEs. The interrupt storm check is probably too sensitive in some non-runtime cases. This is on the ACPI TODO list: http://www.root.org/~nate/freebsd/acpi-todo.html -Nate
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