[dm-devel] [PATCH] multipathd: check and cleanup zombie paths

[Martin Wilck]

On Tue, 2018-03-20 at 15:14 +0000, Bart Van Assche wrote:
> On Tue, 2018-03-20 at 16:12 +0100, Xose Vazquez Perez wrote:
> > 
> > There are some "remove" flags in rescan-scsi-bus.sh:
> > https://github.com/hreinecke/sg3_utils/blob/d4dbbede04db21c206e4c2a
> > cc1cf766117f003c3/scripts/rescan-scsi-bus.sh#L1080
> > 
> > -r      enables removing of devices        [default: disabled]
> > --forceremove:   Remove stale devices (DANGEROUS)
> > --forcerescan:   Remove and readd existing devices (DANGEROUS)
> 
> Last time I checked the rescan-scsi-bus.sh script relied on the SCSI
> sysfs
> delete attribute to remove stale devices. That is the mechanism that
> can
> trigger a deadlock in the kernel.

Is there an alternative the script could use? I'm not aware of any.

Martin

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