| | Date | Mon, 6 Feb 2012 08:28:48 +0100 | | Subject | Re: [PATCH 55/91] Make scsi_free_queue() kill pending SCSI commands | | From | Bart Van Assche <> |
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On Sun, Feb 5, 2012 at 11:10 PM, Willy Tarreau <w@1wt.eu> wrote: > > 2.6.27-longterm review patch. If anyone has any objections, please let us know. > > ------------------ > > commit 3308511c93e6ad0d3c58984ecd6e5e57f96b12c8 upstream. > > Make sure that SCSI device removal via scsi_remove_host() does finish > all pending SCSI commands. Currently that's not the case and hence > removal of a SCSI host during I/O can cause a deadlock. See also > "blkdev_issue_discard() hangs forever if underlying storage device is > removed" (http://bugzilla.kernel.org/show_bug.cgi?id=40472). See also > http://lkml.org/lkml/2011/8/27/6.
If you backport that commit, you should backport commit 745718132c3c7cac98a622b610e239dcd5217f71 too. See e.g. http://lkml.org/lkml/2011/11/8/22.
Bart. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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