Re: [Fwd: Re: possible bug x86 2.4.2 SMP in IP receive stack]

[Bob Felderman <feldy@xxxxxxxx>]

=> Alexey,
=> 
=> Bob is consistently getting these oopses running netperf with
=> UDP on 2.4.2.  He's using the myrinet hardware and drivers.  It's
=> very high speed - over 100 mbytes/sec.  I believe he's experiencing
=> out-of-memory conditions.
=> 
=> Sometimes he also gets assertion failures from ip_frag_destroy.
=> `del_timer == 0'.
=> 
=> Can you think of anything which would cause this to happen
=> in an out-of-memory situation?
=> 
=> BTW - the drivers he's using aren't in the stock kernel. So
=> it's possible that this is a driver problem which we haven't
=> seen before.  I had a look at the driver he's using and the
=> Rx path seems OK.

If I only use a single CPU with the same kernel, I do NOT have
any problems.