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Re: NMI received for unknown reason 29 on CPU 0.



I still have to setup the sensors to read the CPU temperature,
but I got some more additional output that seems to be linked to the problem:

Sep 4 16:29:32 camera1 kernel: e1000: eth0: e1000_clean_tx_irq: Detected Tx Unit Hang
Sep  4 16:29:32 camera1 kernel:   Tx Queue             <0>
Sep  4 16:29:32 camera1 kernel:   TDH                  <6>
Sep  4 16:29:32 camera1 kernel:   TDT                  <49>
Sep  4 16:29:32 camera1 kernel:   next_to_use          <49>
Sep  4 16:29:32 camera1 kernel:   next_to_clean        <6>
Sep  4 16:29:32 camera1 kernel: buffer_info[next_to_clean]
Sep  4 16:29:32 camera1 kernel:   time_stamp           <66014>
Sep  4 16:29:32 camera1 kernel:   next_to_watch        <b>
Sep  4 16:29:32 camera1 kernel:   jiffies              <667eb>
Sep  4 16:29:32 camera1 kernel:   next_to_watch.status <0>
Sep  4 16:29:34 camera1 kernel: NETDEV WATCHDOG: eth0: transmit timed out
Sep 4 16:29:36 camera1 kernel: e1000: eth0: e1000_watchdog_task: NIC Link is Up 100 Mbps Full Duplex

I have no idea if it's bad or very bad.

--
Mitja

Tony Nelson wrote:
At 4:24 PM +0200 9/4/06, Mitja Mihelic wrote:
We're running FC4 with the 2.6.16-1.2115_FC4 kernel on an Intel
based server with a 3GHz P4 HT CPU.
It runs OK for a while and then it starts to output messages at the
rate of about 65 per second, and then it freezes.

Here's a sample output:

Sep  4 10:39:26 camserver kernel: Do you have a strange power saving
mode enabled?
Sep  4 10:39:26 camserver kernel: Uhhuh. NMI received for unknown
reason 29 on CPU 0.
Sep 4 10:39:26 camserver kernel: Dazed and confused, but trying to continue
Sep  4 10:39:26 camserver kernel: Do you have a strange power saving
mode enabled?
Sep  4 10:39:26 camserver kernel: Uhhuh. NMI received for unknown
reason 39 on CPU 0.
Sep 4 10:39:26 camserver kernel: Dazed and confused, but trying to continue
Sep  4 10:39:26 camserver kernel: Do you have a strange power saving
mode enabled?


The obvious question is: what is this thing anyway, and how do we
make it go away ?

WAG: is the CPU too hot?


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