From: Michael S. Tsirkin <mst@redhat.com>
Sent: Sunday, October 24, 2021 2:46 AM

[..]

quoted

quoted

 [    1.243559] Call Trace:
 [    1.243559]  virtio_queue_rq+0x1e4/0x5f0
 [    1.243559]  __blk_mq_try_issue_directly+0x138/0x1e0
 [    1.243559]  blk_mq_try_issue_directly+0x47/0xa0
 [    1.243559]  blk_mq_submit_bio+0x5af/0x890
 [    1.243559]  __submit_bio+0x2af/0x2e0
 [    1.243559]  ? create_page_buffers+0x55/0x70
 [    1.243559]  submit_bio_noacct+0x26c/0x2d0
 [    1.243559]  submit_bh_wbc.isra.0+0x122/0x150
 [    1.243559]  block_read_full_page+0x2f7/0x3f0
 [    1.243559]  ? blkdev_direct_IO+0x4b0/0x4b0
 [    1.243559]  ? lru_cache_add+0xcf/0x150
 [    1.243559]  do_read_cache_page+0x4f2/0x6a0
 [    1.243559]  ? lockdep_hardirqs_on_prepare+0xe4/0x190
 [    1.243559]  read_part_sector+0x39/0xd0
 [    1.243559]  read_lba+0xca/0x140
 [    1.243559]  efi_partition+0xe6/0x770
 [    1.243559]  ? snprintf+0x49/0x60
 [    1.243559]  ? is_gpt_valid.part.0+0x420/0x420
 [    1.243559]  bdev_disk_changed+0x21c/0x4a0
 [    1.243559]  blkdev_get_whole+0x76/0x90
 [    1.243559]  blkdev_get_by_dev+0xd4/0x2c0
 [    1.243559]  device_add_disk+0x351/0x390
 [    1.243559]  virtblk_probe+0x804/0xa40
 [    1.243559]  ? ncpus_cmp_func+0x10/0x10
 [    1.243559]  virtio_dev_probe+0x155/0x250
 [    1.243559]  really_probe+0xdb/0x3b0
 [    1.243559]  __driver_probe_device+0x8c/0x180
 [    1.243559]  driver_probe_device+0x1e/0xa0
 [    1.243559]  __driver_attach+0xaa/0x160
 [    1.243559]  ? __device_attach_driver+0x110/0x110
 [    1.243559]  ? __device_attach_driver+0x110/0x110
 [    1.243559]  bus_for_each_dev+0x7a/0xc0
 [    1.243559]  bus_add_driver+0x198/0x200
 [    1.243559]  driver_register+0x6c/0xc0
 [    1.243559]  ? loop_init+0x149/0x149
 [    1.243559]  init+0x52/0x7d
 [    1.243559]  do_one_initcall+0x63/0x300
 [    1.243559]  ? rcu_read_lock_sched_held+0x5d/0x90
 [    1.243559]  kernel_init_freeable+0x26a/0x2b2
 [    1.243559]  ? rest_init+0x2e0/0x2e0
 [    1.243559]  kernel_init+0x17/0x130
 [    1.243559]  ? rest_init+0x2e0/0x2e0
 [    1.243559]  ret_from_fork+0x1f/0x30
 [    1.243559] Modules linked in:
 [    1.243559] CR2: 00000000fffedbeb

Thanks for the report. Parav, could you help bisect this please?
I also pushed out a new head with some patches dropped.
Could you test that maybe?

Thanks!

OK I think it's due to Jason's change to virtio blk. I dropped that patch for now.
Could you try again with the new head please?

Yes I will try today as soon as I recover my server access and update.
_______________________________________________
Virtualization mailing list
Virtualization@lists.linux-foundation.org
https://lists.linuxfoundation.org/mailman/listinfo/virtualization