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

[Ingo Molnar]

* Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> wrote:

> These things *are* fairly rare (most bugs by _far_ are of the trivial 
> stupid kind), but some of those things can stay around for a long 
> time, and it can take months of different people reporting similar 
> problems until somebody finally puts two and two together and sees the 
> pattern.

one common pattern i've noticed is bug dependency. In some areas we need 
to fix a series of 2-3 increasingly less trivial bugs to get enough test 
exposure, tester confidence and developer attention to trigger (and fix) 
the _truly_ bad bugs.

That's why agressive regression elimination (and prevention) is so 
important IMHO - trivial regressions can totally block testing of 
certain areas of code, and with an agressive 90 days release schedule 
every day counts.

	Ingo
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