lkml.org 
[lkml]   [2007]   [Apr]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [3/3] 2.6.21-rc7: known regressions (v2)
    From
    Date
    On Wed, 2007-04-25 at 04:06 -0700, Andrew Morton wrote:
    > On Mon, 23 Apr 2007 23:49:09 +0200 Adrian Bunk <bunk@stusta.de> wrote:
    >
    > > This email lists some known regressions in Linus' tree compared to 2.6.20.
    > >
    > > If you find your name in the Cc header, you are either submitter of one
    > > of the bugs, maintainer of an affectected subsystem or driver, a patch
    > > of you caused a breakage or I'm considering you in any other way
    > > possibly involved with one or more of these issues.
    > >
    > > Due to the huge amount of recipients, please trim the Cc when answering.
    > >
    > >
    > > Subject : HPET enabled freeze my machine at boot
    > > workaround: clocksource=acpi_pm
    > > References : http://lkml.org/lkml/2007/4/19/370
    > > Submitter : Guilherme Schroeder <guilherme@centralinf.com.br>
    > > Caused-By : Thomas Gleixner <tglx@linutronix.de>
    > > commit 5d8b34fdcb384161552d01ee8f34af5ff11f9684
    > > Handled-By : John Stultz <johnstul@us.ibm.com>
    > > Status : problem is being debugged
    > >
    > >
    > > Subject : acpi_pm clocksource loses time on x86-64
    > > References : http://lkml.org/lkml/2007/4/17/143
    > > Submitter : Mikael Pettersson <mikpe@it.uu.se>
    > > Handled-By : John Stultz <johnstul@us.ibm.com>
    > > Status : problem is being debugged
    > >
    > >
    > > Subject : suspend to disk hangs (CONFIG_NO_HZ)
    > > References : http://lkml.org/lkml/2007/3/25/217
    > > Submitter : Jeff Chua <jeff.chua.linux@gmail.com>
    > > Status : unknown
    >
    > That's still rather a lot of bustage from the timekeeping changes. Is
    > anything really happening here or have we all given up?


    The ACPI PM one is *really* odd as its the same clocksource driver on
    both arches. I had Mikael cut out the clocksource frequency adjustments,
    and confirmed both i386 and x86_64 are using the same base freq
    (confirmed via printks).

    It almost seems like when booting x86_64 the ACPI PM counter is running
    slowly!

    Len: Have you ever heard of such a thing? It seems quite unlikely...


    WRT the HPET freeze issue, I'm still digging there. In that case it
    appears the HPET isn't counting, so timekeeping just stops. I was
    thinking it might be HRT messing w/ the wrong HPET registers, but so far
    that hasn't shaken out.

    I'll spend some more time on these today and see if we get any further.

    thanks
    -john


    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-04-25 20:13    [W:3.787 / U:0.056 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site