Re: [patch] scsi: revert "[SCSI] Get rid of scsi_cmnd->done"

[Valdis . Kletnieks]

On Mon, 07 Jan 2008 16:19:30 MST, Matthew Wilcox said:
> On Mon, Jan 07, 2008 at 06:04:25PM -0500, Valdis.Kletnieks@xxxxxx wrote:
> > Theoretically, at least.  Sometimes, in the real world, other constraints
> > enter into it...
> 
> So you're saying that you can't find reliable ways to reproduce problems
> on demand?  Those are some of the lower quality bug reports, so I don't
> think we're losing much by having you not report them.

I'm sure that *everybody* on this list would *love* to know how you find
a reliable way to reproduce all the bugs that start off with "after X days of
uptime".   But when you're chasing what might be a race condition with a
very small timing hole, you may need an event to happen several million times
before the accumulated chance of hitting it becomes appreciable.

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