On Fri, Jan 03, 2003 at 06:36:29AM +1100, Bruce Evans wrote:
> The fallback is clearly wrong because it turns isolated media errors
> into pessimized i/o for the whole disk at best, system hangs during
> resets next best, and system crashes at worst.  I keep a disk with bad
> media on line for testing some of this, and zap the fallback using the
> following patch (hope this is complete; it was edited from a larger
> patch).

Perhaps the right answer is to test uptime and do the fallback if the
error happens in the first minute, at least for permanently-mounted
disks.  In any case, retries in the current mode should be exhausted

Barney Wolff         http://www.databus.com/bwresume.pdf
I'm available by contract or FT, in the NYC metro area or via the 'Net.

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