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Re: port-alpha/40077: pmf_system_shutdown(9) breaks reboot(8) on PWS500au
On Sun, Sep 06, 2009 at 05:30:05PM +0000, Michael L. Hitch wrote:
> The following reply was made to PR port-alpha/40077; it has been noted by
> From: "Michael L. Hitch" <mhitch%lightning.msu.montana.edu@localhost>
> To: gnats-bugs%NetBSD.org@localhost
> Cc: port-alpha-maintainer%netbsd.org@localhost,
> Subject: Re: port-alpha/40077: pmf_system_shutdown(9) breaks reboot(8) on
> Date: Sun, 6 Sep 2009 11:26:08 -0600 (MDT)
> On Mon, 1 Dec 2008, njoly%pasteur.fr@localhost wrote:
> > No sure about the real fix, but at least removing the pmf_system_shutdown()
> > call from sys/arch/alpha/alpha/machdep.c:cpu_reboot() make reboot/halt
> > commands work as expected.
> I ran into a similar type of problem on an old Compaq DL360. It hung
> on any attempt to halt, and required a power cycle to clear. I did track
> it down to the 1.113 revision of sys/dev/pci/pci.c, which disables bus
> master accesses. You might try to comment out the code in
> pci_child_shutdown() and see if that also makes it work. If I ever get
> around to getting my PWS500au connected back up, I could also check this,
> but I'm getting deep into the SMP problem at the moment.
Good catch. Commenting the code that disable the bus mastering in
pci_child_shutdown() make it work, it reboots flawlessly again.
Biological Software and Databanks.
Institut Pasteur, Paris.
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