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Go Back   Linux Archive > Redhat > Device-mapper Development

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Old 03-24-2009, 02:34 PM
Kay Sievers
Default Fix race-condition when reading sysfs attributes.

On Tue, Mar 24, 2009 at 16:24, Konrad Rzeszutek <konrad@virtualiron.com> wrote:
> This fix re-introduces a wait loop when reading sysfs attributes.
> The reason a wait is necessary is due to the way the kernel
> sends the event.

> There are four uevents sent from the kernel in the creation of
> a SysFS representation of the device. After the last event, the
> SysFs entries for vendor,model, rev are populated. The window
> time between the uevent with /block/sdX sent and the sysfs
> attributes being populated is small.

What kernel version are you using? I thought we fixed all that long ago.


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