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    SubjectRe: linux-next: Tree for June 13: IO APIC breakage on HP nx6325
    Date
    On Tuesday, 17 of June 2008, Rafael J. Wysocki wrote:
    > On Monday, 16 of June 2008, Maciej W. Rozycki wrote:
    > > On Mon, 16 Jun 2008, Rafael J. Wysocki wrote:
    > >
    > > > > > commit 7e3530cd98a0c6ab38f5898e855a5beffab26561
    > > > > > Author: Maciej W. Rozycki <macro@linux-mips.org>
    > > > > > Date: Tue May 27 21:19:51 2008 +0100
    > > > > >
    > > > > > x86: I/O APIC: timer through 8259A second-chance
    > > > > >
    > > > > > Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
    > > > > > Signed-off-by: Ingo Molnar <mingo@elte.hu>
    > > > >
    > > > > Can I have .config used and a full bootstrap log from that system with
    > > > > the patch still applied?
    > > >
    > > > That may be difficult, because with the patch applied the box either doesn't
    > > > boot at all, or works unreliably when booted (depending on the set of patches
    > > > applied on top of it).
    > >
    > > Serial console?
    >
    > No, this box doesn't have any serial ports. It has a FireWire one, but I don't
    > have a matching cable ...
    >
    > > I'm most interested in one from a configuration that
    > > does not boot at all as that's easier to reproduce, determine the cause
    > > and verify whether a change fixes the problem or not. Other
    > > configurations may then be tested with the fix in place.
    >
    > With the -next from today (20080616) I get a different picture.
    >
    > Without any patches on top it boots, but the fan is turned 100% on as soon as
    > the ACPI modules get loaded, regardless of the temperature (normally it does
    > that above 75^o C, which is impossible to get normally, because there are 3
    > temperature trip points below that level; generally the hardware only does that
    > when overheating). After that, things start to go _very_ slow, like 10x slower
    > than usually in X and somewhat slower in the fb console, but I was able to get
    > a dmesg output. This is reproducible 100% of the time.
    >
    > With commit 7e3530cd98a0c6ab38f5898e855a5beffab26561 reverted the box seems to
    > work normally. However, while I was writing this message, ACPI decided it was
    > overheating and emergency shut down the box, although that was completely
    > wrong. Next time I'll try with the C1E patches reverted.
    >
    > The .config is at: http://www.sisk.pl/kernel/debug/20080616/next-config
    >
    > dmesg output without any patches is at
    > http://www.sisk.pl/kernel/debug/20080616/dmesg-1.log
    >
    > dmesg output with commit 7e3530cd98a0c6ab38f5898e855a5beffab26561 reverted is
    > at: http://www.sisk.pl/kernel/debug/20080616/dmesg-2.log
    >
    > (they look pretty similar to my untrained eye, but well).

    BTW, with the C1E patches reverted I don't get the
    WARNING: at /home/rafael/src/linux-next/kernel/smp.c:215 smp_call_function_single+0x3d/0xa2
    in the log. Thomas?

    dmesg with commit 7e3530cd98a0c6ab38f5898e855a5beffab26561 and with the C1E
    commits (the ones between 8750bf598db6a0ea3475d1cf8da922b325941e12 and
    aa83f3f2cfc74d66d01b1d2eb1485ea1103a0f4e inclusive) reverted is at:
    http://www.sisk.pl/kernel/debug/20080616/dmesg-3.log

    Thanks,
    Rafael


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