Date: Wed, 30 Apr 2008 15:44:20 -0400 From: John Baldwin <jhb@freebsd.org> To: d@delphij.net Cc: Gavin Atkinson <gavin@freebsd.org>, FreeBSD Stable <freebsd-stable@freebsd.org> Subject: Re: What does system do after "Uptime: "? Message-ID: <200804301544.20802.jhb@freebsd.org> In-Reply-To: <4818BF27.2080209@delphij.net> References: <481560AC.90109@delphij.net> <1209376409.59233.14.camel@buffy.york.ac.uk> <4818BF27.2080209@delphij.net>
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On Wednesday 30 April 2008 02:49:11 pm Xin LI wrote: > Gavin Atkinson wrote: > | On Sun, 2008-04-27 at 22:29 -0700, Xin LI wrote: > |> Hi, > |> > |> Just wonder what the system would do after Uptime: during reboot? Will > |> there be any callbacks be called? I have received some report regarding > |> hangs after this, and IIRC the only operation is to IPI BSP to do reboot? > | > | Several callbacks are called after that message. Anything that > | registers with the shutdown_post_sync or shutdown_final event handler, > | for example, and the dump routine if you are using "reboot -d". > | > | Before trying to diagnose this, however, make sure you are running with > | sys/dev/usb/ehci_pci.c 1.30 (which has also been MFC'd to 6/7), as that > | seems to have been the cause of most of the recently reported "hangs > | after printing uptime" PRs. > > I see... It seems that this is the culprit. > > To John: Do you think it's worthy to make this an errata to the > supported RELENG_6_X and RELENG_7_0 branches? If someone wants to push re@ to do that they can, but my experience with getting re@ to actually get errata fixes has me skeptical (I think I had patches for about 6 or 7 panics or kernel deadlocks for 6.2 that never got pushed as errata patches). -- John Baldwin
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