Re: skbuff.c BUG() pedantry

Re: skbuff.c BUG() pedantry

[David S. Miller]

   Date: Sat, 9 Dec 2000 21:16:51 +0000 (GMT)
   From: Matthew Kirkwood <matthew@hairy.beasts.org>

   I guess it should probably be removed (or replace with a
   call to something which doesn't try to kill the attached
   process.

BUG is supposed to give a backtrace, nothing more.
If it happens to kill the machine too, so be it, state
is corrupted anyways...

Later,
David S. Miller
davem@redhat.com
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skbuff.c BUG() pedantry

[Matthew Kirkwood]

Hi,

It seems that the BUG() at skbuff.c:175 (2.4.0test12pre7)
kills the machine dead; BUG() isn't (or doesn't appear to
be) interrupt safe:

alloc_skb called nonatomically from interrupt c0194b81
kernel BUG at skbuff.c:175!
invalid operand: 0000
[..]
Code: 0f 0b 83 c4 0c 89 f6 83 e7 fe be 20 c5 24 c0 83 3d 28 c5 24
Aiee, killing interrupt handler
Kernel panic: Attempted to kill the idle task!
In interrupt handler - not syncing


I guess it should probably be removed (or replace with a
call to something which doesn't try to kill the attached
process.

Matthew.

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