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    SubjectRe: [Bugme-new] [Bug 11886] New: without serial console system doesn't poweroff
    Andrew Morton napsal(a):
    > (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?
    I don't know I can test it on Thu. But may be may fault or misunderstanding fist kernel which I test is 2.27.2. I don't
    test any kernel before. I don't know if 2.6.26 works.

    Dan






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