SMP kernel oops

[Usman Wahid]

Hi,
two of our smp linux web servers (2.2.12smp) were
running fine for about a year until a month back. now
they crash randomly from a week to a couple of days
giving wait_on_bh oops. that can happen during both
busy and not so busy times. following is the message
we receive,
wait_on_bh, CPU 0: 
irq: 0 [0 0] 
bh: 1 [0 1] 
<[c010a385] [c016881e] [c0162e6b] [c0163108]
[c016f91e] [c01533cb] 
[c01537c5] [c012611d]

and the mapping
c010a385: synchronize_bh 
c016881e: tcp_v4_unhash 
c0162e6b: tcp_close_state 
c0163108: tcp_close 
c016f91e: inet_release 
c01533cb: sock_release 
c01537c5: sock_close 
c012611d: __fput

appreciate any help,

regards,
saans

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