On Tue, 2024-01-09 at 13:39 -0800, Bart Van Assche wrote:
> On 1/8/24 13:55, Kevin Locke wrote:
>> -8<------------------------------------------------------------------
>> sd 1:0:0:0: [sdb] Synchronizing SCSI cache
>> ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
>> ata2.00: ACPI cmd f5/00:00:00:00:00:a0(SECURITY FREEZE LOCK) filtered out
>> ata2.00: ACPI cmd ef/10:03:00:00:00:a0(SET FEATURES) filtered out
>> ata2.00: ACPI cmd f5/00:00:00:00:00:a0(SECURITY FREEZE LOCK) filtered out
>> ata2.00: ACPI cmd ef/10:03:00:00:00:a0(SET FEATURES) filtered out
>> ata2.00: configured for UDMA/133
>> ata2.00: retrying FLUSH 0xea Emask 0x0
>> sysrq: Show Blocked State
>> task:ultrabay_eject state:D stack:0 pid:2630 tgid:2630 ppid:2629 flags:0x00004002
>> Call Trace:
>> <TASK>
>> __schedule+0x2c1/0x8a0
>> schedule+0x32/0xb0
>> schedule_timeout+0x151/0x160
>> io_schedule_timeout+0x50/0x80
>> wait_for_completion_io+0x86/0x170
>> blk_execute_rq+0x11e/0x1f0
>> scsi_execute_cmd+0xf6/0x250 [scsi_mod]
>> sd_sync_cache+0xe6/0x1f0 [sd_mod]
>> sd_shutdown+0x68/0x100 [sd_mod]
>> sd_remove+0x55/0x60 [sd_mod]
>> device_release_driver_internal+0x19f/0x200
>> bus_remove_device+0xc6/0x130
>> device_del+0x15e/0x3f0
>> ? mutex_lock+0x12/0x30
>> ? __pfx_ata_tdev_match+0x10/0x10 [libata]
>> __scsi_remove_device+0x131/0x190 [scsi_mod]
>> sdev_store_delete+0x6a/0xd0 [scsi_mod]
>> kernfs_fop_write_iter+0x13d/0x1d0
>> vfs_write+0x23d/0x400
>> ksys_write+0x6f/0xf0
>> do_syscall_64+0x64/0x120
>> ? exc_page_fault+0x70/0x150
>> entry_SYSCALL_64_after_hwframe+0x6e/0x76
>
> I think this means that the block layer is waiting for the completion of
> the SYNCHRONIZE CACHE command. Can you please also share the SCSI host and
> device states after the hang has been reproduced, e.g. by sharing the output
> of the following commands (these commands require the bash shell)?
>
> (cd /sys/class/scsi_host && grep -aH . */state)
> (cd /sys/class/scsi_device && grep -aH . */device/{device_{blocked,busy},state})
Sure thing. Running the above commands produced the following output:
host0/state:running
host1/state:running
host2/state:running
host3/state:running
host4/state:running
host5/state:running
0:0:0:0/device/device_blocked:0
0:0:0:0/device/device_busy:1
0:0:0:0/device/state:running
Thanks for your help,
Kevin
