Re: easily reproducible filesystem crash on rebuilding array

Emmanuel Florac
2014-12-16T11:39:00Z

Le Mon, 15 Dec 2014 23:56:05 -0800
Christoph Hellwig <hch@infradead.org> écrivait:

> On Tue, Dec 16, 2014 at 07:10:36AM +1100, Dave Chinner wrote:
> > The controller is broken if it's returning EIO to reads when it
> > is busy.
>
> What controller is this?

ASR-71685, but the problem occured several times with various ASR-7xx5
controllers and different firmware and drivers.

> SCSI devices can return a QUEUE BUSY
> indicator, so having a RAID controller do something similar doesn't
> sound unusual. But the driver needs to returns translate that into
> a QUEUE BUSY so that the SCSI midlayer can handle it correctly.
>
> It might make sense to take this to linux-scsi with the driver
> maintainer in Cc.

The driver would be either aacraid or sd, then?