Re: block: kernel panic in __bio_associate_blkg+0x1e

2018-12-10 Thread Ming Lei
On Tue, Dec 11, 2018 at 01:20:30AM -0500, Dennis Zhou wrote: > On Tue, Dec 11, 2018 at 11:22:18AM +0800, Ming Lei wrote: > > On Tue, Dec 11, 2018 at 11:09 AM Dennis Zhou wrote: > > > > > > Hi Ming, > > > > > > On Tue, Dec 11, 2018 at 10:36:07AM +0800, Ming Lei wrote: > > > > Hi Jens and Dennis, >

Re: block: kernel panic in __bio_associate_blkg+0x1e

2018-12-10 Thread Dennis Zhou
On Tue, Dec 11, 2018 at 11:22:18AM +0800, Ming Lei wrote: > On Tue, Dec 11, 2018 at 11:09 AM Dennis Zhou wrote: > > > > Hi Ming, > > > > On Tue, Dec 11, 2018 at 10:36:07AM +0800, Ming Lei wrote: > > > Hi Jens and Dennis, > > > > > > Just found the following issue when testing for-4.21/block when >

Re: block: kernel panic in __bio_associate_blkg+0x1e

2018-12-10 Thread Ming Lei
On Tue, Dec 11, 2018 at 11:09 AM Dennis Zhou wrote: > > Hi Ming, > > On Tue, Dec 11, 2018 at 10:36:07AM +0800, Ming Lei wrote: > > Hi Jens and Dennis, > > > > Just found the following issue when testing for-4.21/block when > > running stress io & device > > remove on scsi_debug, and it should be c

Re: block: kernel panic in __bio_associate_blkg+0x1e

2018-12-10 Thread Dennis Zhou
Hi Ming, On Tue, Dec 11, 2018 at 10:36:07AM +0800, Ming Lei wrote: > Hi Jens and Dennis, > > Just found the following issue when testing for-4.21/block when > running stress io & device > remove on scsi_debug, and it should be caused by recent blkcg changes. > > [ 37.144330] sd 8:0:0:15: [sds]

block: kernel panic in __bio_associate_blkg+0x1e

2018-12-10 Thread Ming Lei
Hi Jens and Dennis, Just found the following issue when testing for-4.21/block when running stress io & device remove on scsi_debug, and it should be caused by recent blkcg changes. [ 37.144330] sd 8:0:0:15: [sds] Synchronizing SCSI cache [ 37.665644] BUG: unable to handle kernel NULL pointer