Comment 31 for bug 585765

Revision history for this message
databubble (phil-linttell) wrote : Re: Ubuntu 10.04 random freezes

I had a freeze during the night, with the last message that was written kern.log:

Jun 3 01:21:47 family kernel: [13403.676449] do_IRQ: 0.177 No irq handler for vector (irq -1)

Examining the log more closely, I've had four freezes in the last 24 hours... in each case, there are between 1 and 4 incidents of "No irq handler for vector (irq -1)" in the log just before the freeze. In one case, the message was followed by the "CPU soft lockup" message just before the freeze.

However, there are a few incidents of "No irq handler for vector (irq -1)" which did not result in a freeze. And, I've had freezes just after the the "CPU soft lockup" message, where the "No irq handler" message didn't appear.

So, while neither "No irq handler" nor the "CPU soft lockup" message may be the smoking gun, there is at least the stench of gunpowder nearby.

This is back on the current lucid kernel 2.6.32-22-generic.