Messages in this thread | | | Date | Tue, 8 Jan 2008 20:10:42 -0800 | From | Andrew Morton <> | Subject | Re: [patch] scsi: revert "[SCSI] Get rid of scsi_cmnd->done" |
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On Tue, 08 Jan 2008 23:01:07 -0500 Valdis.Kletnieks@vt.edu wrote:
> On Mon, 07 Jan 2008 16:19:30 MST, Matthew Wilcox said: > > On Mon, Jan 07, 2008 at 06:04:25PM -0500, Valdis.Kletnieks@vt.edu 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. >
I must say that the number of bugs which actually go away when the user stops using nvidia/fglrx/ndiswrapper/etc is a small minority.
And you can usually tell beforehand too: if the user reports bad_page warnings or pte table scroggage or whatever and they're using nvidia I just hit 'd'. But people who think that removing the nvidia driver will magically fix that khubd-got-stuck-in-D-state bug are urinating up an incline.
Facts:
- lots of people use nvidia/etc
- most bugs they report aren't caused by nvidia/etc
- we need lots of testers
draw you own conclusions.
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