lkml.org 
[lkml]   [2014]   [Dec]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: frequent lockups in 3.18rc4
    On Wed, Dec 03, 2014 at 10:45:57AM -0800, Linus Torvalds wrote:
    > On Wed, Dec 3, 2014 at 10:41 AM, Dave Jones <davej@redhat.com> wrote:
    > >
    > > I've been stuck on this kernel for a few days now trying to prove it
    > > good/bad one way or the other, and I'm leaning towards good, given
    > > that it recovers, even though the traces look similar.
    >
    > Ugh. But this does *not* happen with 3.16, right? Even the non-fatal case?
    >
    > If so, I'd be inclined to call it "bad". But there might well be two
    > bugs: one that makes that NMI watchdog trigger, and another one that
    > then makes it be a hard lockup. I'd think it would be good to figure
    > out the "NMI watchdog starts triggering" one first, though.

    A bisect later, and I landed on a kernel that ran for a day, before
    spewing NMI messages, recovering, and then..

    http://codemonkey.org.uk/junk/log.txt

    I could log in, but every command I tried (even shell built-ins) just printed 'bus error'.

    I saw those end_request messages in an earlier bisect, I wonder if there
    was an actual bug that got fixed where allowed non-root to try and do
    bad things to raw devices. It's always sector 0 too.

    Yet again, I'm wondering if this whole thing is just signs of early hardware death.

    Dave



    \
     
     \ /
      Last update: 2014-12-05 18:41    [W:3.873 / U:2.384 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site