Why does my system panic with a "divide error: 0000 [1] SMP" message?
Issue
My system panics with the following message:
divide error: 0000 [1] SMP
The top entries on the stack trace show that the Vegas algorithm for congestion tuning is involved somehow.
<IRQ> [<ffffffff8006dd27>] do_gettimeofday+0x40/0x8f
[<ffffffff800542cf>] tcp_cong_avoid+0xe/0x1d
[<ffffffff80024dc5>] tcp_ack+0x1721/0x1879
[<ffffffff8825b0f9>] :tcp_vegas:tcp_vegas_rtt_calc+0x0/0x22
Environment
- Red Hat Enterprise Linux 5.3
- Panasas software
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