Solved: Kernel NULL pointer, over my head...

[Jamie Harris]

Thanks to everyone who help me solve this one... As suspected by a few of
you it turned out to be duff CPU - you mean Linux can't work around that
yet!! ;)

Thanks again.

Jamie...

---------- Forwarded message ----------
Date: Tue, 1 May 2001 05:46:02 +0100 (GMT Daylight Time)
From: Jamie Harris <[e-mail]>
To: [e-mail], Bristol LUG <[e-mail]>,
     [e-mail]
Subject: Kernel NULL pointer, over my head...

Morning all,

Sorry for the big cross post but I don't have the first clue about where
to send this one.  I get this from my stock 2.2.18 kernel in
/var/log/syslog:

May  1 05:27:36 mnemosyne kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000000
May  1 05:27:36 mnemosyne kernel: current->tss.cr3 = 00362000, %cr3 =
00362000
May  1 05:27:36 mnemosyne kernel: *pde = 00000000
May  1 05:29:36 mnemosyne kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000000
May  1 05:29:36 mnemosyne kernel: current->tss.cr3 = 036dc000, %cr3 =
036dc000
May  1 05:29:36 mnemosyne kernel: *pde = 00000000
May  1 05:30:28 mnemosyne kernel: Unable to handle kernel NULL pointer
dereference at virtual address 00000000
May  1 05:30:28 mnemosyne kernel: current->tss.cr3 = 00ca7000, %cr3 =
00ca7000
May  1 05:30:28 mnemosyne kernel: *pde = 00000000

This time it seemed to be caused by running tar on a file, but I've
noticed a similar error in the past but they've never made anything fall
over.  The tar process appeared to die but then again so did the telnet
session so I don't know in what order they went down.  I tried 3 times
just to check it wasn't a fluke...  What other details would be useful??

Cheers Jamie...

PS I'm not on the linux-kernel list so please post to me directly...

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