From: Bart Van Assche <bvanassche@acm.org>
To: kernel test robot <oliver.sang@intel.com>
Cc: Damien Le Moal <damien.lemoal@wdc.com>,
Hannes Reinecke <hare@suse.de>, Christoph Hellwig <hch@lst.de>,
Ming Lei <ming.lei@redhat.com>,
Johannes Thumshirn <johannes.thumshirn@wdc.com>,
Himanshu Madhani <himanshu.madhani@oracle.com>,
LKML <linux-kernel@vger.kernel.org>,
lkp@lists.01.org, lkp@intel.com
Subject: Re: [block/mq] 2aa18c32fd: WARNING:at_block/mq-deadline-main.c:#dd_insert_requests
Date: Fri, 11 Jun 2021 08:58:28 -0700 [thread overview]
Message-ID: <3e58f0b5-3dbe-b38a-ea2f-2399f5a451f5@acm.org> (raw)
In-Reply-To: <20210611070434.GA26476@xsang-OptiPlex-9020>
On 6/11/21 12:04 AM, kernel test robot wrote:
> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
In the dmesg output I found the following:
kern :warn : [ 100.174333] WARNING: CPU: 0 PID: 1055 at
block/mq-deadline-main.c:714 dd_insert_requests+0x1b5/0x300
kern :warn : [ 100.521569] WARNING: CPU: 0 PID: 1055 at
block/mq-deadline-main.c:474 dd_dispatch_request+0x280/0x380
So these warnings are triggered by:
#if defined(CONFIG_BLK_CGROUP)
WARN_ON_ONCE(true);
#endif
and in both call stacks I found the following: blkdev_issue_discard(). I
will take a closer look.
Bart.
prev parent reply other threads:[~2021-06-11 15:58 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-11 7:04 kernel test robot
2021-06-11 15:58 ` Bart Van Assche [this message]
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