Messages in this thread |  | | Subject | Re: [PATCH] xen/blkfront: When purging persistent grants, keep them in the buffer | From | Juergen Gross <> | Date | Thu, 27 Sep 2018 09:12:56 +0200 |
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On 22/09/18 21:55, Boris Ostrovsky wrote: > Commit a46b53672b2c ("xen/blkfront: cleanup stale persistent grants") > added support for purging persistent grants when they are not in use. As > part of the purge, the grants were removed from the grant buffer, This > eventually causes the buffer to become empty, with BUG_ON triggered in > get_free_grant(). This can be observed even on an idle system, within > 20-30 minutes. > > We should keep the grants in the buffer when purging, and only free the > grant ref. > > Fixes: a46b53672b2c ("xen/blkfront: cleanup stale persistent grants") > Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Juergen
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