Re: uninterruptible sleep lockups

[Parag Warudkar]

I have recently run into similar issue involving processes stuck in D state - involves khubd and usb-storage. This happens with 2.6.11-rc4.

Check lkml for subject Re: [linux-usb-devel] 2.6: USB Storage hangs mac.. 

Parag


> On Tue, 22 Feb 2005 22:31:03 +0100, Olaf Titz <olaf@xxxxxxxxxxxxxx> wrote:
> > In article <421A3414.2020508@xxxxxxxxxxxxxxx> you write:
> > > The most recent one was yesterday: I had run lsusb in the morning and had no
> > > problems, but at the end of the day I ran it again, and after outputting 3
> > > lines of data, it hung, stuck in D-state.  So now I have this:
> > >
> > > [/home/user]$ ps aux|grep D
> > > USER       PID %CPU %MEM   VSZ  RSS TTY      STAT START   TIME COMMAND
> > > root        92  0.0  0.0     0    0 ?        D    Feb19   0:00 [khubd]
> > > root       845  0.0  0.0     0    0 ?        D    Feb19   0:00 [knodemgrd_0]
> > > root     29016  0.0  0.1  1512  592 ?        D    00:28   0:00 lsusb
> > 
> > I'm getting fairly repeatable deadlocks of this kind involving khubd
> > with a USB storage device. Perhaps there's just a faulty locking issue
> > in khubd.
> 
> Would you be willing to file a bugzilla (bugzilla.kernel.org) bug, if
> it's still happening with 2.6.11-rc4? Or, if you have filed one,
> please refer to it?
> 
> Thanks,
> Nish
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