Re: [PATCH v2 1/2] sysfs: handle 'parent deleted before child added'

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On Fri, Apr 06, 2012 at 01:41:06PM -0700, Dan Williams wrote:
> In scsi at least two cases of the parent device being deleted before the
> child is added have been observed.
> 
> 1/ scsi is performing async scans and the device is removed prior to the
>    async can thread running (can happen with an in-opportune / unlikely
>    unplug during initial scan).

That sounds like a bug in the scsi code, doesn't it?

> 2/ libsas discovery event running after the parent port has been torn
>    down (this is a bug in libsas).

Is this fixed somewhere?

I don't want to paper over bugs like this by changing the sysfs core.
We went through this a lot years ago when scsi changed to use the driver
core, and I thought we had fixed all of these types of errors properly.

So, any chance to fix these properly as well?

thanks,

greg k-h
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