From: Michal Simek <monstr@monstr.eu>
To: Guenter Roeck <linux@roeck-us.net>, Jens Axboe <axboe@kernel.dk>,
Michal Simek <michal.simek@xilinx.com>
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] xsysace: Fix error handling in ace_setup
Date: Mon, 8 Apr 2019 07:36:24 +0200 [thread overview]
Message-ID: <c5ef97ce-8158-7299-536b-8911326ff7b4@monstr.eu> (raw)
In-Reply-To: <ff578f4e-9795-ade2-9321-93e4cfe2f3ec@roeck-us.net>
[-- Attachment #1.1: Type: text/plain, Size: 1311 bytes --]
On 06. 04. 19 21:34, Guenter Roeck wrote:
> On 4/5/19 4:06 PM, Jens Axboe wrote:
>> On 4/5/19 4:44 PM, Guenter Roeck wrote:
>>> Hi,
>>>
>>> On Tue, Feb 19, 2019 at 08:49:56AM -0800, Guenter Roeck wrote:
>>>> If xace hardware reports a bad version number, the error handling code
>>>> in ace_setup() calls put_disk(), followed by queue cleanup. However,
>>>> since
>>>> the disk data structure has the queue pointer set, put_disk() also
>>>> cleans and releases the queue. This results in blk_cleanup_queue()
>>>> accessing an already released data structure, which in turn may result
>>>> in a crash such as the following.
>>>>
>>>
>>> This crash is now quite persistent in mainline. The fix didn't make it.
>>> Should I stop testing virtex-ml507 with qemu ?
>>
>> I've applied the fix now.
>>
>> But given Michal's comments, should we kill the driver for 5.2?
>>
>
> If the driver is no longer used or maintained, removing it would indeed
> make sense.
I have no problem with it.
Thanks,
Michal
--
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 198 bytes --]
prev parent reply other threads:[~2019-04-08 5:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-19 16:49 [PATCH] xsysace: Fix error handling in ace_setup Guenter Roeck
2019-02-20 7:09 ` Michal Simek
2019-02-20 11:13 ` Guenter Roeck
2019-04-05 22:44 ` Guenter Roeck
2019-04-05 23:06 ` Jens Axboe
2019-04-06 19:34 ` Guenter Roeck
2019-04-08 5:36 ` Michal Simek [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=c5ef97ce-8158-7299-536b-8911326ff7b4@monstr.eu \
--to=monstr@monstr.eu \
--cc=axboe@kernel.dk \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-block@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux@roeck-us.net \
--cc=michal.simek@xilinx.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).