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From: Ming Lei <ming.lei@redhat.com>
To: kernel test robot <rong.a.chen@intel.com>
Cc: Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org,
	"James E . J . Bottomley" <jejb@linux.ibm.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	linux-scsi@vger.kernel.org, "Ewan D . Milne" <emilne@redhat.com>,
	Bart Van Assche <bvanassche@acm.org>,
	Hannes Reinecke <hare@suse.com>, Christoph Hellwig <hch@lst.de>,
	Mike Snitzer <snitzer@redhat.com>,
	dm-devel@redhat.com, stable@vger.kernel.org, lkp@01.org
Subject: Re: [scsi] ae86a1c553: BUG:kernel_NULL_pointer_dereference,address
Date: Sat, 27 Jul 2019 10:15:44 +0800	[thread overview]
Message-ID: <20190727021523.GB6926@ming.t460p> (raw)
In-Reply-To: <20190725104629.GC3640@shao2-debian>

Hi,

Thanks for your report!

On Thu, Jul 25, 2019 at 06:46:29PM +0800, kernel test robot wrote:
> FYI, we noticed the following commit (built with gcc-7):
> 
> commit: ae86a1c5530b52dc44a280e78feb0c4eb2dd8595 ("[PATCH V2 2/2] scsi: implement .cleanup_rq callback")
> url: https://github.com/0day-ci/linux/commits/Ming-Lei/blk-mq-add-callback-of-cleanup_rq/20190720-133431
> 
> 
> in testcase: blktests
> with following parameters:
> 
> 	disk: 1SSD
> 	test: block-group1
> 
> 
> 
> on test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 4G
> 
> caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):
> 
> 
> +---------------------------------------------------------------------------------------------------------------+------------+------------+
> |                                                                                                               | bd222ca85f | ae86a1c553 |
> +---------------------------------------------------------------------------------------------------------------+------------+------------+
> | boot_successes                                                                                                | 0          | 0          |
> | boot_failures                                                                                                 | 11         | 14         |
> | BUG:kernel_reboot-without-warning_in_test_stage                                                               | 11         | 1          |
> | BUG:kernel_NULL_pointer_dereference,address                                                                   | 0          | 4          |
> | Oops:#[##]                                                                                                    | 0          | 4          |
> | RIP:scsi_queue_rq                                                                                             | 0          | 4          |
> | Kernel_panic-not_syncing:Fatal_exception                                                                      | 0          | 4          |
> | invoked_oom-killer:gfp_mask=0x                                                                                | 0          | 9          |
> | Mem-Info                                                                                                      | 0          | 9          |
> | page_allocation_failure:order:#,mode:#(GFP_KERNEL|__GFP_RETRY_MAYFAIL),nodemask=(null),cpuset=/,mems_allowed= | 0          | 2          |
> +---------------------------------------------------------------------------------------------------------------+------------+------------+
> 
> 
> If you fix the issue, kindly add following tag
> Reported-by: kernel test robot <rong.a.chen@intel.com>
> 
> 
> [  140.974865] BUG: kernel NULL pointer dereference, address: 000000000000001c

Yeah, I know this issue, and it has been fixed in either V3 or V4.

Thanks,
Ming

  parent reply	other threads:[~2019-07-27  2:16 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-20  3:06 [PATCH V2 0/2] block/scsi/dm-rq: fix leak of request private data in dm-mpath Ming Lei
2019-07-20  3:06 ` [PATCH V2 1/2] blk-mq: add callback of .cleanup_rq Ming Lei
2019-07-22 16:51   ` Bart Van Assche
2019-07-23  1:00     ` Ming Lei
2019-07-20  3:06 ` [PATCH V2 2/2] scsi: implement .cleanup_rq callback Ming Lei
2019-07-22 15:40   ` Bart Van Assche
2019-07-23  1:03     ` Ming Lei
     [not found]   ` <20190725104629.GC3640@shao2-debian>
2019-07-27  2:15     ` Ming Lei [this message]
2019-07-26 16:20 ` [PATCH V2 0/2] block/scsi/dm-rq: fix leak of request private data in dm-mpath Benjamin Block
2019-07-27  2:12   ` Ming Lei

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