From: Bart Van Assche <bvanassche@acm.org>
To: Johannes Thumshirn <jthumshirn@suse.de>,
"Martin K . Petersen" <martin.petersen@oracle.com>
Cc: Linux Kernel Mailinglist <linux-kernel@vger.kernel.org>,
Linux SCSI Mailinglist <linux-scsi@vger.kernel.org>,
Hannes Reinecke <hare@suse.de>, Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH v2] scsi: sd: don't crash the host on invalid commands
Date: Fri, 21 Sep 2018 06:52:35 -0700 [thread overview]
Message-ID: <e082c821-e019-7e41-12b8-5295a207d3fb@acm.org> (raw)
In-Reply-To: <20180921070101.9260-1-jthumshirn@suse.de>
On 9/21/18 12:01 AM, Johannes Thumshirn wrote:
> When sd_init_command() get's a with a unknown req_op() it crashes the
> system via BUG().
>
> This makes debugging the actual reason for the broken request
> cmd_flags pretty hard as the system is down before it's able to write
> out debugging data on the serial console or the trace buffer.
>
> Change the BUG() to a WARN_ON() and return BLKPREP_KILL to fail
> gracefully and return an I/O error to the producer of the request.
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
next prev parent reply other threads:[~2018-09-21 13:52 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-21 7:01 [PATCH v2] scsi: sd: don't crash the host on invalid commands Johannes Thumshirn
2018-09-21 13:52 ` Bart Van Assche [this message]
2018-09-26 0:52 ` Martin K. Petersen
2018-09-26 6:51 ` Johannes Thumshirn
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=e082c821-e019-7e41-12b8-5295a207d3fb@acm.org \
--to=bvanassche@acm.org \
--cc=hare@suse.de \
--cc=hch@lst.de \
--cc=jthumshirn@suse.de \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-scsi@vger.kernel.org \
--cc=martin.petersen@oracle.com \
/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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).