Messages in this thread | | | Date | Wed, 23 May 2007 10:47:04 -0400 (EDT) | From | Alan Stern <> | Subject | Re: 2.6.22-rc2-mm1 |
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On Wed, 23 May 2007, Rafael J. Wysocki wrote:
> On Wednesday, 23 May 2007 09:48, Andrew Morton wrote: > > On Wed, 23 May 2007 00:42:33 -0700 Andrew Morton <akpm@linux-foundation.org> wrote: > > > > > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.22-rc2/2.6.22-rc2-mm1/ > > > > This is intermittently getting resume-from-RAM failures. It is not > > sufficiently repeatable to be able to bisect. > > > > [ 1381.119362] PM: Preparing system for mem sleep > > [ 2331.798452] Stopping tasks ... > > [ 2351.760431] Stopping kernel threads timed out after 20 seconds (2 tasks refusing to freeze): > > [ 2351.762385] ksuspend_usbd > > [ 2351.764374] khubd > > [ 2351.766338] Restarting tasks ... done. > > Hmm, that seems to be related to usb-fix-suspend-to-ram.patch (probably one of > the threads is waiting for a completion by some other thread that has been > frozen already).
Is it possible to get an Alt-SysRq-T stack trace during those 20 seconds? Knowing what those threads are waiting for would be a big help.
Alan Stern
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