Panic on 5.2.1-R, netisr related?

[Scott Long]

Colin Percival wrote:
>   Is this problem reproducible?  I ask because...
> 
> At 20:41 10/05/2004, Michael Nottebrock wrote:
> 
>>#4  0xc0675715 in bremfree (bp=0x0) at ../../../kern/vfs_bio.c:629
> 
>                          ^^^^^^
> 
>>#5  0xc06791c4 in getblk (vp=0xc312ab2c, blkno=1, size=16384, slpflag=0, 
>>slptimeo=0, flags=0)
>>   at ../../../kern/vfs_bio.c:2468
> 
>      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> 
> ... this should never happen.  getblk dereferences bp during the four
> lines immediately before it calls bremfree(bp), so if bp is null, you
> should have seen a panic before getting this far.
> 
> Colin Percival
> 

This is actually from the secondary panic in the trace from the system
trying to sync after the first one.  All bets are off after the first
panic.

Scott