Hi，Bart
I test the latest Linus' master branch, which include patch
be03df3d4bfe ("scsi: core: Fix a procfs host directory removal
regression")，
I cannot trigger this issue on it，but get some error info with block/001 test，
[root@storageqe-103 blktests]# uname -r
6.3.0-rc3+
[root@storageqe-103 blktests]#
[root@storageqe-103 blktests]# ./check block/001
block/001 (stress device hotplugging) [passed]
runtime ... 40.589s
[root@storageqe-103 blktests]#
[root@storageqe-103 ~]# dmesg
[ 1745.496434] run blktests block/001 at 2023-03-22 04:26:41
[ 1745.540541] scsi_debug:sdebug_driver_probe: scsi_debug: trim
poll_queues to 0. poll_q/nr_hw = (0/1)
[ 1745.550666] scsi host14: scsi_debug: version 0191 [20210520]
dev_size_mb=8, opts=0x0, submit_queues=1, statistics=0
[ 1745.551189] scsi 14:0:0:0: Direct-Access Linux scsi_debug
0191 PQ: 0 ANSI: 7
[ 1745.551489] scsi_debug:sdebug_driver_probe: scsi_debug: trim
poll_queues to 0. poll_q/nr_hw = (0/1)
[ 1745.552148] sd 14:0:0:0: Attached scsi generic sg4 type 0
[ 1745.552268] sd 14:0:0:0: Power-on or device reset occurred
[ 1745.554409] sd 14:0:0:0: [sde] 16384 512-byte logical blocks: (8.39
MB/8.00 MiB)
[ 1745.555429] sd 14:0:0:0: [sde] Write Protect is off
[ 1745.555434] sd 14:0:0:0: [sde] Mode Sense: 73 00 10 08
[ 1745.557460] sd 14:0:0:0: [sde] Write cache: enabled, read cache:
enabled, supports DPO and FUA
[ 1745.560504] sd 14:0:0:0: [sde] Preferred minimum I/O size 512 bytes
[ 1745.560508] sd 14:0:0:0: [sde] Optimal transfer size 524288 bytes
[ 1745.561622] scsi host15: scsi_debug: version 0191 [20210520]
dev_size_mb=8, opts=0x0, submit_queues=1, statistics=0
[ 1745.567986] scsi 15:0:0:0: Direct-Access Linux scsi_debug
0191 PQ: 0 ANSI: 7
[ 1745.568338] sd 15:0:0:0: Attached scsi generic sg5 type 0
[ 1745.568516] scsi_debug:sdebug_driver_probe: scsi_debug: trim
poll_queues to 0. poll_q/nr_hw = (0/1)
[ 1745.568557] sd 15:0:0:0: Power-on or device reset occurred
[ 1745.578636] scsi host16: scsi_debug: version 0191 [20210520]
dev_size_mb=8, opts=0x0, submit_queues=1, statistics=0
[ 1745.585028] scsi 16:0:0:0: Direct-Access Linux scsi_debug
0191 PQ: 0 ANSI: 7
[ 1745.585345] scsi_debug:sdebug_driver_probe: scsi_debug: trim
poll_queues to 0. poll_q/nr_hw = (0/1)
[ 1745.585566] sd 16:0:0:0: Attached scsi generic sg6 type 0
[ 1745.585617] sd 16:0:0:0: Power-on or device reset occurred
[ 1745.586907] sd 15:0:0:0: [sdf] 16384 512-byte logical blocks: (8.39
MB/8.00 MiB)
[ 1745.587702] sd 16:0:0:0: [sdg] 16384 512-byte logical blocks: (8.39
MB/8.00 MiB)
[ 1745.587927] sd 15:0:0:0: [sdf] Write Protect is off
[ 1745.587931] sd 15:0:0:0: [sdf] Mode Sense: 73 00 10 08
[ 1745.588738] sd 16:0:0:0: [sdg] Write Protect is off
[ 1745.588748] sd 16:0:0:0: [sdg] Mode Sense: 73 00 10 08
[ 1745.589957] sd 15:0:0:0: [sdf] Write cache: enabled, read cache:
enabled, supports DPO and FUA
[ 1745.590814] sd 16:0:0:0: [sdg] Write cache: enabled, read cache:
enabled, supports DPO and FUA
[ 1745.593002] sd 15:0:0:0: [sdf] Preferred minimum I/O size 512 bytes
[ 1745.593006] sd 15:0:0:0: [sdf] Optimal transfer size 524288 bytes
[ 1745.593865] sd 16:0:0:0: [sdg] Preferred minimum I/O size 512 bytes
[ 1745.593869] sd 16:0:0:0: [sdg] Optimal transfer size 524288 bytes
[ 1745.595450] scsi host17: scsi_debug: version 0191 [20210520]
dev_size_mb=8, opts=0x0, submit_queues=1, statistics=0
[ 1745.595981] scsi 17:0:0:0: Direct-Access Linux scsi_debug
0191 PQ: 0 ANSI: 7
[ 1745.601970] sd 17:0:0:0: Attached scsi generic sg7 type 0
[ 1745.601993] sd 17:0:0:0: Power-on or device reset occurred
[ 1745.610165] sd 14:0:0:0: [sde] Attached SCSI disk
[ 1745.610193] sd 17:0:0:0: [sdh] 16384 512-byte logical blocks: (8.39
MB/8.00 MiB)
[ 1745.611217] sd 17:0:0:0: [sdh] Write Protect is off
[ 1745.611223] sd 17:0:0:0: [sdh] Mode Sense: 73 00 10 08
[ 1745.613274] sd 17:0:0:0: [sdh] Write cache: enabled, read cache:
enabled, supports DPO and FUA
[ 1745.616342] sd 17:0:0:0: [sdh] Preferred minimum I/O size 512 bytes
[ 1745.616347] sd 17:0:0:0: [sdh] Optimal transfer size 524288 bytes
[ 1745.622325] sd 16:0:0:0: [sdg] Attached SCSI disk
[ 1745.624206] sd 15:0:0:0: [sdf] Attached SCSI disk
[ 1745.640200] sd 17:0:0:0: [sdh] Attached SCSI disk
[ 1745.799001] sd 15:0:0:0: [sdf] Synchronizing SCSI cache
[ 1745.799462] scsi 15:0:0:0: Direct-Access Linux scsi_debug
0191 PQ: 0 ANSI: 7
[ 1745.799908] sd 15:0:0:0: Attached scsi generic sg4 type 0
[ 1745.800081] sd 15:0:0:0: Power-on or device reset occurred
[ 1745.806324] sd 15:0:0:0: [sdf] Read Capacity(16) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 1745.806333] sd 15:0:0:0: [sdf] Sense not available.
[ 1745.806343] sd 15:0:0:0: [sdf] Read Capacity(10) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 1745.806346] sd 15:0:0:0: [sdf] Sense not available.
[ 1745.806358] sd 15:0:0:0: [sdf] 0 512-byte logical blocks: (0 B/0 B)
[ 1745.806361] sd 15:0:0:0: [sdf] 0-byte physical blocks
[ 1745.806367] sd 15:0:0:0: [sdf] Write Protect is off
[ 1745.806371] sd 15:0:0:0: [sdf] Mode Sense: 00 00 00 00
[ 1745.806376] sd 15:0:0:0: [sdf] Asking for cache data failed
[ 1745.807002] sd 14:0:0:0: [sde] Synchronizing SCSI cache
[ 1745.812631] sd 15:0:0:0: [sdf] Assuming drive cache: write through
[ 1745.813105] scsi 14:0:0:0: Direct-Access Linux scsi_debug
0191 PQ: 0 ANSI: 7
[ 1745.819610] sd 15:0:0:0: [sdf] Preferred minimum I/O size 512 bytes
not a multiple of physical block size (0 bytes)
[ 1745.819880] sd 14:0:0:0: Attached scsi generic sg4 type 0
[ 1745.820072] sd 14:0:0:0: Power-on or device reset occurred
[ 1745.822211] sd 14:0:0:0: [sde] 16384 512-byte logical blocks: (8.39
MB/8.00 MiB)
[ 1745.823232] sd 14:0:0:0: [sde] Write Protect is off
[ 1745.823237] sd 14:0:0:0: [sde] Mode Sense: 73 00 10 08
[ 1745.825264] sd 14:0:0:0: [sde] Write cache: enabled, read cache:
enabled, supports DPO and FUA
[ 1745.828307] sd 14:0:0:0: [sde] Preferred minimum I/O size 512 bytes
[ 1745.828311] sd 14:0:0:0: [sde] Optimal transfer size 524288 bytes
[ 1745.831270] sd 15:0:0:0: [sdf] Optimal transfer size 524288 bytes
not a multiple of physical block size (0 bytes)
[ 1745.849240] sd 15:0:0:0: [sdf] Attached SCSI disk
[ 1745.849984] sd 16:0:0:0: [sdg] Synchronizing SCSI cache
[ 1745.850013] sd 17:0:0:0: [sdh] Synchronizing SCSI cache
[ 1745.850735] scsi 17:0:0:0: Direct-Access Linux scsi_debug
0191 PQ: 0 ANSI: 7
[ 1745.850753] scsi 16:0:0:0: Direct-Access Linux scsi_debug
0191 PQ: 0 ANSI: 7
[ 1745.851601] sd 16:0:0:0: Attached scsi generic sg4 type 0
[ 1745.851648] sd 17:0:0:0: Power-on or device reset occurred
[ 1745.851650] sd 16:0:0:0: Power-on or device reset occurred
[ 1745.851689] sd 17:0:0:0: Attached scsi generic sg5 type 0
[ 1745.857798] sd 17:0:0:0: [sdh] Read Capacity(16) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 1745.863934] sd 17:0:0:0: [sdh] Sense not available.
[ 1745.863953] sd 17:0:0:0: [sdh] Read Capacity(10) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 1745.863959] sd 17:0:0:0: [sdh] Sense not available.
[ 1745.863959] sd 16:0:0:0: [sdg] Read Capacity(16) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 1745.863964] sd 16:0:0:0: [sdg] Sense not available.
[ 1745.863973] sd 17:0:0:0: [sdh] 0 512-byte logical blocks: (0 B/0 B)
[ 1745.863978] sd 16:0:0:0: [sdg] Read Capacity(10) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 1745.863979] sd 17:0:0:0: [sdh] 0-byte physical blocks
[ 1745.863985] sd 16:0:0:0: [sdg] Sense not available.
[ 1745.863988] sd 17:0:0:0: [sdh] Write Protect is off
[ 1745.863994] sd 17:0:0:0: [sdh] Mode Sense: 00 00 00 00
[ 1745.863996] sd 16:0:0:0: [sdg] 0 512-byte logical blocks: (0 B/0 B)
[ 1745.864001] sd 16:0:0:0: [sdg] 0-byte physical blocks
[ 1745.864003] sd 17:0:0:0: [sdh] Asking for cache data failed
[ 1745.864009] sd 16:0:0:0: [sdg] Write Protect is off
[ 1745.870234] sd 17:0:0:0: [sdh] Assuming drive cache: write through
[ 1745.870236] sd 16:0:0:0: [sdg] Mode Sense: 00 00 00 00
[ 1745.877139] sd 16:0:0:0: [sdg] Asking for cache data failed
[ 1745.877146] sd 17:0:0:0: [sdh] Preferred minimum I/O size 512 bytes
not a multiple of physical block size (0 bytes)
[ 1745.883366] sd 16:0:0:0: [sdg] Assuming drive cache: write through
[ 1745.895019] sd 17:0:0:0: [sdh] Optimal transfer size 524288 bytes
not a multiple of physical block size (0 bytes)
[ 1745.901926] sd 16:0:0:0: [sdg] Preferred minimum I/O size 512 bytes
not a multiple of physical block size (0 bytes)
[ 1745.913855] sd 17:0:0:0: [sdh] Attached SCSI disk
[ 1745.925034] sd 16:0:0:0: [sdg] Optimal transfer size 524288 bytes
not a multiple of physical block size (0 bytes)
[ 1745.925464] sd 16:0:0:0: [sdg] Attached SCSI disk
[ 1745.929026] device offline error, dev sde, sector 0 op 0x0:(READ)
flags 0x0 phys_seg 1 prio class 2
[ 1745.929040] Buffer I/O error on dev sde, logical block 0, async page read
[ 1745.929068] device offline error, dev sde, sector 0 op 0x0:(READ)
flags 0x0 phys_seg 1 prio class 2
[ 1745.929074] Buffer I/O error on dev sde, logical block 0, async page read
[ 1745.929091] device offline error, dev sde, sector 0 op 0x0:(READ)
flags 0x0 phys_seg 1 prio class 2
[ 1745.929096] Buffer I/O error on dev sde, logical block 0, async page read
[ 1745.929112] device offline error, dev sde, sector 0 op 0x0:(READ)
flags 0x0 phys_seg 1 prio class 2
[ 1745.929117] Buffer I/O error on dev sde, logical block 0, async page read
[ 1745.929134] device offline error, dev sde, sector 0 op 0x0:(READ)
flags 0x0 phys_seg 1 prio class 2
[ 1745.929139] Buffer I/O error on dev sde, logical block 0, async page read
[ 1745.929155] device offline error, dev sde, sector 0 op 0x0:(READ)
flags 0x0 phys_seg 1 prio class 2
[ 1745.929161] Buffer I/O error on dev sde, logical block 0, async page read
[ 1745.929169] sde: unable to read partition table
[ 1745.929228] sd 14:0:0:0: [sde] Attached SCSI disk
[ 1746.062453] scsi 15:0:0:0: Direct-Access Linux scsi_debug
0191 PQ: 0 ANSI: 7
[ 1746.062920] sd 15:0:0:0: Attached scsi generic sg4 type 0
[ 1746.063160] sd 15:0:0:0: Power-on or device reset occurred
[ 1746.064448] scsi 14:0:0:0: Direct-Access Linux scsi_debug
0191 PQ: 0 ANSI: 7
[ 1746.069338] sd 15:0:0:0: [sdf] Read Capacity(16) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 1746.069347] sd 15:0:0:0: [sdf] Sense not available.
[ 1746.069357] sd 15:0:0:0: [sdf] Read Capacity(10) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 1746.069360] sd 15:0:0:0: [sdf] Sense not available.
[ 1746.069372] sd 15:0:0:0: [sdf] 0 512-byte logical blocks: (0 B/0 B)
[ 1746.069375] sd 15:0:0:0: [sdf] 0-byte physical blocks
[ 1746.069381] sd 15:0:0:0: [sdf] Write Protect is off
[ 1746.069385] sd 15:0:0:0: [sdf] Mode Sense: 00 00 00 00
[ 1746.069389] sd 15:0:0:0: [sdf] Asking for cache data failed
[ 1746.069654] sd 14:0:0:0: Power-on or device reset occurred
[ 1746.069679] sd 14:0:0:0: Attached scsi generic sg4 type 0
[ 1746.071478] scsi 17:0:0:0: Direct-Access Linux scsi_debug
0191 PQ: 0 ANSI: 7
[ 1746.072390] sd 17:0:0:0: Attached scsi generic sg4 type 0
[ 1746.072429] sd 17:0:0:0: Power-on or device reset occurred
[ 1746.073489] sd 17:0:0:0: [sdh] Read Capacity(16) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 1746.073496] sd 17:0:0:0: [sdh] Sense not available.
[ 1746.073505] sd 17:0:0:0: [sdh] Read Capacity(10) failed: Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK
[ 1746.073508] sd 17:0:0:0: [sdh] Sense not available.
[ 1746.073519] sd 17:0:0:0: [sdh] 0 512-byte logical blocks: (0 B/0 B)
[ 1746.073522] sd 17:0:0:0: [sdh] 0-byte physical blocks
[ 1746.073527] sd 17:0:0:0: [sdh] Write Protect is off
[ 1746.073531] sd 17:0:0:0: [sdh] Mode Sense: 00 00 00 00
[ 1746.073535] sd 17:0:0:0: [sdh] Asking for cache data failed
[ 1746.073538] sd 17:0:0:0: [sdh] Assuming drive cache: write through
[ 1746.073552] sd 17:0:0:0: [sdh] Preferred minimum I/O size 512 bytes
not a multiple of physical block size (0 bytes)
[ 1746.073556] sd 17:0:0:0: [sdh] Optimal transfer size 524288 bytes
not a multiple of physical block size (0 bytes)
Thanks，
Changhui
On Wed, Mar 22, 2023 at 1:23 AM Bart Van Assche <bvanassche@xxxxxxx> wrote:
>
> On 3/20/23 20:16, Changhui Zhong wrote:
> > [ 259.090462] remove_proc_entry: removing non-empty directory
> > 'scsi/scsi_debug', leaking at least '12'
>
> Please merge Linus' master branch into your branch to help with
> verifying whether the following patch fixes this issue: be03df3d4bfe
> ("scsi: core: Fix a procfs host directory removal regression").
>
> Thanks,
>
> Bart.
>
--
Changhui Zhong
Quality Engineer,Kernel QE
Red Hat
Red Hat Beijing - Raycom
