Xen project Mailing List

Re: xen-blkback: Scheduled work from previous purge is still busy, cannot purge list

From: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Date: Thu, 15 Oct 2020 12:57:35 +0200

Authentication-results: esa1.hc3370-68.iphmx.com; dkim=none (message not signed) header.i=none

Cc: "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>

Delivery-date: Thu, 15 Oct 2020 10:57:51 +0000

Ironport-sdr: X6Ks6eBeFu7jQlD+vRQ225PMgZ7g1mUtc+3TOLAD5U9SgTGYDsNus9G2Zu6DfOthWL2HgHUH0Z pIizAmSJ6ZebloRm4hcpdl3qKE3Tg6BBhoAyhM7qnrHYEROVsnk7xxVsIi8Wck8L5yHfMm0g09 w5ZABeSZfoZr4jlspLPkCEP5SQp1U/U5aRRoEljxdHVgkczWFxWqlWcPva4pWAAOLXbLdUAbuS uZQ+TtusKIW/k6y22MHpQ3lfTCEOvEr9E7zYt8vlrEdj9oGGnGZ4jD3GEbc4n+C9U2ED9Nq4Ps VJA=

List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On Tue, Oct 13, 2020 at 07:26:47AM +0200, J. Roeleveld wrote: > Hi All, > > I am seeing the following message in the "dmesg" output of a driver domain. > > [Thu Oct 8 20:57:04 2020] xen-blkback: Scheduled work from previous purge is > still busy, cannot purge list > [Thu Oct 8 20:57:11 2020] xen-blkback: Scheduled work from previous purge is > still busy, cannot purge list > [Thu Oct 8 20:57:44 2020] xen-blkback: Scheduled work from previous purge is > still busy, cannot purge list > [Thu Oct 8 20:57:44 2020] xen-blkback: Scheduled work from previous purge is > still busy, cannot purge list > > > Is this something to worry about? Or can I safely ignore this? What version of the Linux kernel are you running in that driver domain? Is the domain very busy? That might explain the delay in purging grants. Also is this an sporadic message, or it's constantly repeating? Roger.

©2013 Xen Project, A Linux Foundation Collaborative Project. All Rights Reserved.
Linux Foundation is a registered trademark of The Linux Foundation.
Xen Project is a trademark of The Linux Foundation.