From: ebiederm@xmission.com (Eric W. Biederman)
To: Meelis Roos <mroos@linux.ee>
Cc: Linux Kernel list <linux-kernel@vger.kernel.org>
Subject: Re: 2.6.13-rc6: halt instead of reboot
Date: Mon, 22 Aug 2005 03:34:27 -0600 [thread overview]
Message-ID: <m1mznativw.fsf@ebiederm.dsl.xmission.com> (raw)
In-Reply-To: <Pine.SOC.4.61.0508221152350.17731@math.ut.ee> (Meelis Roos's message of "Mon, 22 Aug 2005 11:53:47 +0300 (EEST)")
Meelis Roos <mroos@linux.ee> writes:
>> Does reboot=hard (on the kernel command line) change the behaviour?
>
> Will try in the evening.
>
>> Does magic sysrq work after the system hangs?
>
> It does not hang, it just powers off like on halt.
Ok. Then at least in part the kernel behavior is either
intersecting with a BIOS bug, a bad reboot script that calls halt instead,
or a driver that is scribbling on the wrong register. There is
nothing in that code path that should remove the power.
>> Can you narrow it down to a -git snapshot where reboot breaks for
>> you?
>
> Quite hard - it's a production multiuser machine and gateway. Will see what I
> can find.
Ok. Until I have something to go on I don't have a clue where to start.
Eric
next prev parent reply other threads:[~2005-08-22 22:22 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-20 18:41 Meelis Roos
2005-08-22 5:00 ` Eric W. Biederman
2005-08-22 8:53 ` Meelis Roos
2005-08-22 9:34 ` Eric W. Biederman [this message]
2005-08-24 19:55 ` Meelis Roos
2005-08-25 3:32 ` Eric W. Biederman
2005-08-25 21:49 ` Meelis Roos
2005-08-26 5:05 ` Meelis Roos
2005-08-26 5:52 ` Eric W. Biederman
2005-08-26 18:45 ` Meelis Roos
2005-08-27 6:56 ` [PATCH] [ACPI] acpi_shutdown: Only prepare for power off on power_off Eric W. Biederman
2005-08-27 11:58 ` Pavel Machek
2005-08-27 19:48 ` Eric W. Biederman
2005-08-27 20:48 ` Pavel Machek
2005-08-22 15:52 ` 2.6.13-rc6: halt instead of reboot Masoud Sharbiani
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