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SubjectRe: [Bugme-new] [Bug 11886] New: without serial console system doesn't poweroff

(switched to email. Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Wed, 29 Oct 2008 04:06:11 -0700 (PDT)
bugme-daemon@bugzilla.kernel.org wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=11886
>
> Summary: without serial console system doesn't poweroff
> Product: Power Management
> Version: 2.5
> KernelVersion: 2.6.27.4
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: Other
> AssignedTo: power-management_other@kernel-bugs.osdl.org
> ReportedBy: marvin@mydatex.cz
>
>
> Latest working kernel version:
> Earliest failing kernel version:2.6.27.2
> Distribution: Debian Etch
> Hardware Environment: Supermiro C2SBC-Q Dual Core Intel Cpu 1G RAM
> Software Environment: Debian Etch
> Problem Description: If I does't add serial console to kernel command line
> system doesn't poweroff. Linux hangs there:
>
> e1000e 0000:0d:00.0: PCI INT A disabled
> e1000e 0000:00:19.0: PCI INT A disabled
> ACPI: Preparing to enter system sleep state S5
> Disabling non-boot CPUs ...
>
> If I disable in kernel config Suspend to Ram and Hibernate all works without
> console. But with Suspend and hibernate enabled and serial console added to
> kernel cmd line all works too:
>
> e1000e 0000:0d:00.0: PCI INT A disabled
> e1000e 0000:00:19.0: PCI INT A disabled
> ACPI: Preparing to enter system sleep state S5
> Disabling non-boot CPUs ...
> CPU 1 is now offline
> SMP alternatives: switching to UP code
> CPU1 is down
> Power down.
> acpi_power_off called
>
> Steps to reproduce:
> Compile kernel with attached config and try poweroff without serial console.
>

OK, this is weird.

But the good news is that there is a very small number of commits
between 2.6.27.2 and 2.6.27.4.

ftp://ftp.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.3
ftp://ftp.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.27.4

I'd be looking at these:

commit 3b987ac961486373f91191b14291b331fa546072
Author: Rafael J. Wysocki <rjw@sisk.pl>
Date: Sat Sep 6 13:13:01 2008 +0200

ACPI suspend: Always use the 32-bit waking vector

commit a6629105dd03d370fcb31e97bddf223fa4bb651e upstream.


commit 66036f5862883fcc9f7ff8550685a5a3de1a57e4
Author: Rafael J. Wysocki <rjw@sisk.pl>
Date: Sat Oct 4 00:05:05 2008 +0200

ACPI Suspend: Enable ACPI during resume if SCI_EN is not set

commit d0c71fe7ebc180f1b7bc7da1d39a07fc19eec768 upstream.



presumably 2.6.28-rc3 is also broken?


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