On Wed, 13 Jan 2021 14:31:03 +0800, Ye Bin wrote:
> We get follow BUG_ON when rdac scan:
> [595952.944297] kernel BUG at drivers/scsi/device_handler/scsi_dh_rdac.c:427!
> [595952.951143] Internal error: Oops - BUG: 0 [#1] SMP
> ......
> [595953.251065] Call trace:
> [595953.259054] check_ownership+0xb0/0x118
> [595953.269794] rdac_bus_attach+0x1f0/0x4b0
> [595953.273787] scsi_dh_handler_attach+0x3c/0xe8
> [595953.278211] scsi_dh_add_device+0xc4/0xe8
> [595953.282291] scsi_sysfs_add_sdev+0x8c/0x2a8
> [595953.286544] scsi_probe_and_add_lun+0x9fc/0xd00
> [595953.291142] __scsi_scan_target+0x598/0x630
> [595953.295395] scsi_scan_target+0x120/0x130
> [595953.299481] fc_user_scan+0x1a0/0x1c0 [scsi_transport_fc]
> [595953.304944] store_scan+0xb0/0x108
> [595953.308420] dev_attr_store+0x44/0x60
> [595953.312160] sysfs_kf_write+0x58/0x80
> [595953.315893] kernfs_fop_write+0xe8/0x1f0
> [595953.319888] __vfs_write+0x60/0x190
> [595953.323448] vfs_write+0xac/0x1c0
> [595953.326836] ksys_write+0x74/0xf0
> [595953.330221] __arm64_sys_write+0x24/0x30
>
> [...]
Applied to 5.14/scsi-fixes, thanks!
[1/1] scsi: scsi_dh_rdac: Avoid crash during rdac_bus_attach
https://git.kernel.org/mkp/scsi/c/fb5d909021b4
--
Martin K. Petersen Oracle Linux Engineering
