From: Johannes Thumshirn <jthumshirn@suse.de>
To: Christoph Hellwig <hch@lst.de>,
linux-scsi@vger.kernel.org,
James.Bottomley@HansenPartnership.com
Subject: Re: [PATCH] scsi: restart list search after unlock in scsi_remove_target
Date: Tue, 27 Oct 2015 17:33:21 +0100 [thread overview]
Message-ID: <1445963601.16404.45.camel@suse.de> (raw)
In-Reply-To: <20151019143546.GA7486@lst.de>
On Mon, 2015-10-19 at 16:35 +0200, Christoph Hellwig wrote:
> When dropping a lock while iterating a list we must restart the
> search
> as other threads could have manipulated the list under us. Without
> this
> we can get stuck in an endless loop.
>
> Reported-by: Johannes Thumshirn <jthumshirn@suse.de>
> Signed-off-by: Christoph Hellwig <hch@lst.de>
I have an official acknowledge from the original author that a 48h long
term test on their side didn't reproduce the lockup as well.
James can we please get the patch included in 4.4 and stable?
Thanks
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
prev parent reply other threads:[~2015-10-27 16:33 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-19 14:35 [PATCH] scsi: restart list search after unlock in scsi_remove_target Christoph Hellwig
2015-10-19 15:36 ` Bart Van Assche
2015-10-19 15:56 ` Christoph Hellwig
2015-10-19 16:01 ` James Bottomley
2015-10-19 17:21 ` Dan Williams
2015-10-26 8:35 ` Johannes Thumshirn
2015-10-27 20:14 ` Bart Van Assche
2015-10-30 8:26 ` Johannes Thumshirn
2015-10-27 16:33 ` Johannes Thumshirn [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1445963601.16404.45.camel@suse.de \
--to=jthumshirn@suse.de \
--cc=James.Bottomley@HansenPartnership.com \
--cc=hch@lst.de \
--cc=linux-scsi@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.