Re: why does udev set timeout for all SCSI devices?

From: Kay Sievers
Date: Thu Oct 30 2008 - 04:31:20 EST


On Thu, Oct 30, 2008 at 03:55, Tejun Heo <tj@xxxxxxxxxx> wrote:
> As the $SUBJ says, why does udev set timeout for all SCSI devices?
> It's the following two rules.
>
> 50-udev-default.rules:SUBSYSTEM=="scsi", KERNEL=="[0-9]*:[0-9]*",
> ACTION=="add", ATTR{type}=="0|7|14", ATTR{timeout}="60"
> 50-udev-default.rules:SUBSYSTEM=="scsi", KERNEL=="[0-9]*:[0-9]*",
> ACTION=="add", ATTR{type}=="1", ATTR{timeout}="900"
>
> The appropriate default timeout differs depending on the transport and
> the type of the attached device, so the above two rules harm more than
> help. The affect of the above two rules weren't visible for some
> reason but with recent block layer timeout update, they actually work
> and cause problems.

It's in there for years, I can not even dig out, where it is coming
from. I just removed it from the default rules.

Thanks,
Kay
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