On 3/1/22 04:56, Christoph Hellwig wrote:
On Sun, Feb 27, 2022 at 03:18:24PM -0800, Bart Van Assche wrote:
The second issue I run into with this branch is as follows
(also for nvmeof-mp/002):
You'll need this patch, which is only in mainline but not the
for-5.18/block branch:
fd9f4e62a39f09a7c014d7415c2b9d1390aa0504
Author: Christoph Hellwig <hch@xxxxxx>
Date: Tue Jan 18 08:04:44 2022 +0100
block: assign bi_bdev for cloned bios in blk_rq_prep_clone
Hmm ... even with that patch applied, I still see the crash reported in
my previous email. After I observed that crash I did a clean kernel
build to make sure that the kernel binaries used in my test match the
source code.
Bart.
BUG: KASAN: null-ptr-deref in __blk_account_io_start+0x28/0xa0
Read of size 8 at addr 0000000000000008 by task kworker/0:1H/155
CPU: 0 PID: 155 Comm: kworker/0:1H Not tainted 5.17.0-rc2-dbg+ #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS
rel-1.15.0-0-g2dd4b9b-rebuilt.opensuse.org 04/01/2014
Workqueue: kblockd blk_mq_requeue_work
Call Trace:
[ ... ]
