Re: Processes stuck in D state with autofs + smbfs

[Mike Fedyk]

On Thu, May 30, 2002 at 05:18:46PM -0200, Denis Vlasenko wrote:
> On 30 May 2002 10:36, Urban Widmark wrote:
> > > I also have this in my kernel log:
> > > May 26 06:33:16 fileserver kernel: Uhhuh. NMI received. Dazed and
> > > confused, but trying to continue May 26 06:33:16 fileserver kernel: You
> > > probably have a hardware problem with your RAM chips
> >
> > However, this error could (but I don't really know what the effects are of
> > this) potentially stop a process at some random point. If a process
> > crashes, for example an oops, while holding the semaphore that semaphore
> > will still be held and everyone trying to get in will stop in D state.
> 
> AFAIK this message says CPU got a spurious NMI. It does not kill the task,
> kernel logs this message and returns from NMI interrupt handler.
> 
> What does cat /proc/interrupts tell you?
>

What does this tell you?

           CPU0       CPU1       
  0:  106126905  106523397    IO-APIC-edge  timer
  1:       1290       1261    IO-APIC-edge  keyboard
  2:          0          0          XT-PIC  cascade
  8:          2          1    IO-APIC-edge  rtc
 16:  135638480  135641259   IO-APIC-level  eth0
 30:         12          8   IO-APIC-level  aic7xxx
 31:   16837019   16835973   IO-APIC-level  aic7xxx
NMI:          1          0 
LOC:  212643560  212643582 
ERR:          0
MIS:          0

> NMI may be truly spurious or a hardware failure indication. Give your box
> an overnight run of memtest86.

Yes, I planned to do that anyway, thanks.

Mike