On Wed, Aug 01, 2018 at 07:52:19PM +0800, Ming Lei wrote: > On Wed, Aug 01, 2018 at 12:24:00PM +0100, Matt Hart wrote: > > On 1 August 2018 at 11:59, Mark Brown <broonie@xxxxxxxxxx> wrote: > > > On Wed, Aug 01, 2018 at 06:51:09PM +0800, Ming Lei wrote: > > > > > >> You may have to provide some clue, such as dmesg log, boot disk, ... > > > > > >> I guess you don't use virtio-scsi/virtio-blk since both run at blk-mq > > >> mode at default, even though without d5038a13eca72fb. > > > > > > Boot logs and so on can be found here: > > > > > > https://kernelci.org/boot/id/5b618c9f59b514931f96ba97/ > > > https://kernelci.org/boot/id/5b618ca359b514904d96bac5/ > > > https://kernelci.org/boot/id/5b618cbc59b51492e896baad/ > > > > > > (these are today's but the symptoms are the same.) The ramdisk is > > > unfortunately not linked through the UI, though we don't get that far. > > > > And a full LAVA boot log from my lab > > http://lava.streamtester.net/scheduler/job/138067 > > > > QEMU command line here: > > http://lava.streamtester.net/scheduler/job/138067#L75 > > > > And a LAVA job definition, which includes the url of the ramdisk and kernel: > > http://lava.streamtester.net/scheduler/job/138067/definition#defline76 > > > > Thanks for the sharing! > > I can reproduce this issue with above script/initrd/kernel config, and looks > the issue disappeared after 'scsi_mod.use_blk_mq=0' is passed. > > Not see such issue with zero-day ktest config. > > Looks a bit weird, given SCSI_MQ is nothing related with ramdisk. Seems related with sr: 1) with scsi-mq [ 2.808204] ata2.01: NODEV after polling detection [ 2.809807] ata2.00: ATAPI: QEMU DVD-ROM, 2.5+, max UDMA/100 [ 2.827377] scsi 1:0:0:0: CD-ROM QEMU QEMU DVD-ROM 2.5+ PQ: 0 ANSI: 5 2) without scsi_mq [ 5.549135] ata2.01: NODEV after polling detection [ 5.554404] ata2.00: ATAPI: QEMU DVD-ROM, 2.5+, max UDMA/100 [ 5.596143] scsi 1:0:0:0: CD-ROM QEMU QEMU DVD-ROM 2.5+ PQ: 0 ANSI: 5 [ 5.637126] sr 1:0:0:0: [sr0] scsi3-mmc drive: 4x/4x cd/rw xa/form2 tray [ 5.637870] cdrom: Uniform CD-ROM driver Revision: 3.20 [ 5.648940] sr 1:0:0:0: Attached scsi CD-ROM sr0 [ 5.661605] sr 1:0:0:0: Attached scsi generic sg0 type 5 We may need to take a look at recent SCSI change. Thanks, Ming