DANGER WILL ROBINSON! SERIOUS problem with current 5.4-PRERELEASE

Matthew N. Dodd mdodd at FreeBSD.ORG
Tue Mar 29 20:40:54 PST 2005


On Tue, 29 Mar 2005, Karl Denninger wrote:
>  1.42: When resubmitting a timed out request, reset donecount.
>  1.41: Reset timeout when we are back from interrupt.
>  1.40: Correct logical error, result was that retries wasn't always made but
>        failure reported instead.
>  1.39: Do not retry on requests that have lost their device during reinit.
>
> This change is EXTREMELY DANGEROUS.
>
> This change needs to be backed out immediately until it can be determined
> why a requeued request destabilizes the system.

The changes in question are very small.  Could you attempt to isolate 
which one is the cause?

Thanks.

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