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From: Yi Zhang Date: Fri, 22 Oct 2021 13:29:30 +0800 Message-ID: Subject: Re: [bug report] WARNING: CPU: 109 PID: 739473 at block/blk-stat.c:218 blk_free_queue_stats+0x3c/0x80 To: linux-block Cc: Bruno Goncalves , skt-results-master@redhat.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org Hi This issue is still can be reproduced with the latest linux-block/for-next Kernel repo: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git Commit: 8131e5e445ac - Merge branch 'for-5.16/block' into for-next On Tue, Oct 19, 2021 at 12:13 PM Yi Zhang wrote: > > Hello > Below WARNING was triggered with blktests block/001 on ppc64le/aarch64 > during CKI tests, pls help check it, thanks. > > Kernel repo: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git > Commit: b199567fe754 - Merge branch 'for-5.16/bdev-size' > into for-next > > > [ 2260.897475] run blktests block/001 at 2021-10-18 18:33:34 > [ 2260.930028] alternatives: patching kernel code > [ 2260.938145] scsi_debug:sdebug_driver_probe: scsi_debug: trim > poll_queues to 0. poll_q/nr_hw = (0/1) > [ 2260.947251] scsi host7: scsi_debug: version 0190 [20200710] > [ 2260.947251] dev_size_mb=8, opts=0x0, submit_queues=1, statistics=0 > [ 2260.959707] scsi_debug:sdebug_driver_probe: scsi_debug: trim > poll_queues to 0. poll_q/nr_hw = (0/1) > [ 2260.959828] scsi 7:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2260.968770] scsi host8: scsi_debug: version 0190 [20200710] > [ 2260.968770] dev_size_mb=8, opts=0x0, submit_queues=1, statistics=0 > [ 2260.977217] sd 7:0:0:0: Power-on or device reset occurred > [ 2260.977525] sd 7:0:0:0: Attached scsi generic sg14 type 0 > [ 2260.989380] scsi_debug:sdebug_driver_probe: scsi_debug: trim > poll_queues to 0. poll_q/nr_hw = (0/1) > [ 2260.989440] scsi 8:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2260.989683] sd 8:0:0:0: Attached scsi generic sg15 type 0 > [ 2260.989738] sd 8:0:0:0: Power-on or device reset occurred > [ 2261.009878] sd 8:0:0:0: [sdl] 16384 512-byte logical blocks: (8.39 > MB/8.00 MiB) > [ 2261.014263] sd 7:0:0:0: [sdk] 16384 512-byte logical blocks: (8.39 > MB/8.00 MiB) > [ 2261.016650] scsi host9: scsi_debug: version 0190 [20200710] > [ 2261.016650] dev_size_mb=8, opts=0x0, submit_queues=1, statistics=0 > [ 2261.017094] scsi_debug:sdebug_driver_probe: scsi_debug: trim > poll_queues to 0. poll_q/nr_hw = (0/1) > [ 2261.017109] scsi 9:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2261.017407] sd 9:0:0:0: Attached scsi generic sg16 type 0 > [ 2261.017413] sd 9:0:0:0: Power-on or device reset occurred > [ 2261.024287] sd 7:0:0:0: [sdk] Write Protect is off > [ 2261.027452] scsi host10: scsi_debug: version 0190 [20200710] > [ 2261.027452] dev_size_mb=8, opts=0x0, submit_queues=1, statistics=0 > [ 2261.032073] sd 8:0:0:0: [sdl] Write Protect is off > [ 2261.037519] sd 9:0:0:0: [sdm] 16384 512-byte logical blocks: (8.39 > MB/8.00 MiB) > [ 2261.042678] scsi 10:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2261.052111] sd 8:0:0:0: [sdl] Write cache: enabled, read cache: > enabled, supports DPO and FUA > [ 2261.054769] sd 7:0:0:0: [sdk] Write cache: enabled, read cache: > enabled, supports DPO and FUA > [ 2261.063333] sd 10:0:0:0: Power-on or device reset occurred > [ 2261.063340] sd 10:0:0:0: Attached scsi generic sg17 type 0 > [ 2261.064024] sd 9:0:0:0: [sdm] Write Protect is off > [ 2261.082156] sd 8:0:0:0: [sdl] Optimal transfer size 524288 bytes > [ 2261.084058] sd 9:0:0:0: [sdm] Write cache: enabled, read cache: > enabled, supports DPO and FUA > [ 2261.101158] sd 7:0:0:0: [sdk] Optimal transfer size 524288 bytes > [ 2261.106817] sd 10:0:0:0: [sdn] 16384 512-byte logical blocks: (8.39 > MB/8.00 MiB) > [ 2261.114100] sd 9:0:0:0: [sdm] Optimal transfer size 524288 bytes > [ 2261.128948] sd 10:0:0:0: [sdn] Write Protect is off > [ 2261.210521] sts DPO and FUA > [ 2261.249185] s[ 2261.632507] sd 8:0:0:0: [sdl] Attached SCSI disk > [ 2261.672478] sd 7:0:0:0: [sdk] Attached SCSI disk > [ 2261.672489] sd 9:0:0:0: [sdm] Attached SCSI disk > [ 2261.802507] sd 10:0:0:0: [sdn] Attached SCSI disk > [ 2262.173663] sd 9:0:0:0: [sdm] Synchronizing SCSI cache > [ 2262.173676] sd 8:0:0:0: [sdl] Synchronizing SCSI cache > [ 2262.185405] scsi 9:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2262.190384] scsi 8:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2262.193772] sd 9:0:0:0: Attached scsi generic sg14 type 0 > [ 2262.193848] sd 9:0:0:0: Power-on or device reset occurred > [ 2262.201866] sd 8:0:0:0: Power-on or device reset occurred > [ 2262.207047] sd 8:0:0:0: Attached scsi generic sg15 type 0 > [ 2262.213925] sd 9:0:0:0: [sdl] 16384 512-byte logical blocks: (8.39 > MB/8.00 MiB) > [ 2262.218506] sd 7:0:0:0: [sdk] Synchronizing SCSI cache > [ 2262.223159] sd 9:0:0:0: [sdl] Write Protect is off > [ 2262.223184] sd 8:0:0:0: [sdm] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.223189] sd 8:0:0:0: [sdm] Sense not available. > [ 2262.223200] sd 8:0:0:0: [sdm] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.223203] sd 8:0:0:0: [sdm] Sense not available. > [ 2262.223213] sd 8:0:0:0: [sdm] 0 512-byte logical blocks: (0 B/0 B) > [ 2262.223216] sd 8:0:0:0: [sdm] 0-byte physical blocks > [ 2262.223224] sd 8:0:0:0: [sdm] Write Protect is on > [ 2262.223233] sd 8:0:0:0: [sdm] Asking for cache data failed > [ 2262.223235] sd 8:0:0:0: [sdm] Assuming drive cache: write through > [ 2262.231018] sd 10:0:0:0: [sdn] Synchronizing SCSI cache > [ 2262.235604] sd 9:0:0:0: [sdl] Asking for cache data failed > [ 2262.236777] scsi 7:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2262.237063] sd 7:0:0:0: Attached scsi generic sg14 type 0 > [ 2262.237115] sd 7:0:0:0: Power-on or device reset occurred > [ 2262.246789] scsi 10:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2262.247170] sd 7:0:0:0: [sdk] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.247174] sd 7:0:0:0: [sdk] Sense not available. > [ 2262.247185] sd 7:0:0:0: [sdk] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.247188] sd 7:0:0:0: [sdk] Sense not available. > [ 2262.247198] sd 7:0:0:0: [sdk] 0 512-byte logical blocks: (0 B/0 B) > [ 2262.247201] sd 7:0:0:0: [sdk] 0-byte physical blocks > [ 2262.247207] sd 7:0:0:0: [sdk] Write Protect is on > [ 2262.247216] sd 7:0:0:0: [sdk] Asking for cache data failed > [ 2262.247218] sd 7:0:0:0: [sdk] Assuming drive cache: write through > [ 2262.249761] sd 9:0:0:0: [sdl] Assuming drive cache: write through > [ 2262.254794] sd 10:0:0:0: Attached scsi generic sg14 type 0 > [ 2262.254819] sd 10:0:0:0: Power-on or device reset occurred > [ 2262.274922] sd 10:0:0:0: [sdn] 16384 512-byte logical blocks: (8.39 > MB/8.00 MiB) > [ 2262.295902] sd 8:0:0:0: [sdm] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.296079] sd 10:0:0:0: [sdn] Write Protect is off > [ 2262.301282] sd 8:0:0:0: [sdm] Sense not available. > [ 2262.306770] sd 10:0:0:0: [sdn] Asking for cache data failed > [ 2262.438436] sd 10:0:0:0: [sdn] Assuming drive cache: write through > [ 2262.444621] sd 10:0:0:0: [sdn] Optimal transfer size 524288 bytes > [ 2262.475561] sd 7:0:0:0: [sdk] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.484960] sd 7:0:0:0: [sdk] Sense not available. > [ 2262.485574] sd 9:0:0:0: [sdl] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.495670] sd 10:0:0:0: [sdn] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.499129] sd 9:0:0:0: [sdl] Sense not available. > [ 2262.508592] sd 10:0:0:0: [sdn] Sense not available. > [ 2262.552707] sd 8:0:0:0: [sdm] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.562089] sd 8:0:0:0: [sdm] Sense not available. > [ 2262.566909] sd 8:0:0:0: [sdm] Write Protect is off > [ 2262.571702] sd 8:0:0:0: [sdm] Attached SCSI disk > [ 2262.592701] sd 7:0:0:0: [sdk] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.602082] sd 7:0:0:0: [sdk] Sense not available. > [ 2262.606897] sd 7:0:0:0: [sdk] Write Protect is off > [ 2262.611691] sd 7:0:0:0: [sdk] Attached SCSI disk > [ 2262.632824] sd 9:0:0:0: [sdl] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.632826] sd 10:0:0:0: [sdn] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.639249] scsi 8:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2262.639510] sd 8:0:0:0: Attached scsi generic sg14 type 0 > [ 2262.639536] sd 8:0:0:0: Power-on or device reset occurred > [ 2262.642208] sd 9:0:0:0: [sdl] Sense not available. > [ 2262.649586] sd 8:0:0:0: [sdm] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.649590] sd 8:0:0:0: [sdm] Sense not available. > [ 2262.649600] sd 8:0:0:0: [sdm] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.649603] sd 8:0:0:0: [sdm] Sense not available. > [ 2262.649613] sd 8:0:0:0: [sdm] 0 512-byte logical blocks: (0 B/0 B) > [ 2262.649615] sd 8:0:0:0: [sdm] 0-byte physical blocks > [ 2262.649621] sd 8:0:0:0: [sdm] Write Protect is off > [ 2262.649629] sd 8:0:0:0: [sdm] Asking for cache data failed > [ 2262.649631] sd 8:0:0:0: [sdm] Assuming drive cache: write through > [ 2262.651678] sd 10:0:0:0: [sdn] Sense not available. > [ 2262.651691] sd 10:0:0:0: [sdn] 0 512-byte logical blocks: (0 B/0 B) > [ 2262.659778] sd 9:0:0:0: [sdl] 0 512-byte logical blocks: (0 B/0 B) > [ 2262.665171] sdn: detected capacity change from 16384 to 0 > [ 2262.670559] sdl: detected capacity change from 16384 to 0 > [ 2262.675330] sd 10:0:0:0: [sdn] Attached SCSI disk > [ 2262.684711] sd 9:0:0:0: [sdl] Attached SCSI disk > [ 2262.788917] scsi 7:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2262.797259] sd 7:0:0:0: Attached scsi generic sg14 type 0 > [ 2262.797288] sd 7:0:0:0: Power-on or device reset occurred > [ 2262.808090] sd 7:0:0:0: [sdk] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.817481] sd 7:0:0:0: [sdk] Sense not available. > [ 2262.822271] sd 7:0:0:0: [sdk] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.831669] sd 7:0:0:0: [sdk] Sense not available. > [ 2262.835596] sd 8:0:0:0: [sdm] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.836469] sd 7:0:0:0: [sdk] 0 512-byte logical blocks: (0 B/0 B) > [ 2262.845838] sd 8:0:0:0: [sdm] Sense not available. > [ 2262.852000] sd 7:0:0:0: [sdk] 0-byte physical blocks > [ 2262.861765] sd 7:0:0:0: [sdk] Write Protect is off > [ 2262.863794] scsi 9:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2262.868565] scsi 10:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2262.868825] sd 10:0:0:0: Attached scsi generic sg14 type 0 > [ 2262.868862] sd 10:0:0:0: Power-on or device reset occurred > [ 2262.874892] sd 9:0:0:0: Attached scsi generic sg14 type 0 > [ 2262.874920] sd 9:0:0:0: Power-on or device reset occurred > [ 2262.878916] sd 10:0:0:0: [sdl] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.878920] sd 10:0:0:0: [sdl] Sense not available. > [ 2262.878931] sd 10:0:0:0: [sdl] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2262.878934] sd 10:0:0:0: [sdl] Sense not available. > [ 2262.878944] sd 10:0:0:0: [sdl] 0 512-byte logical blocks: (0 B/0 B) > [ 2262.878946] sd 10:0:0:0: [sdl] 0-byte physical blocks > [ 2262.878952] sd 10:0:0:0: [sdl] Write Protect is off > [ 2262.878960] sd 10:0:0:0: [sdl] Asking for cache data failed > [ 2262.878962] sd 10:0:0:0: [sdl] Assuming drive cache: write through > [ 2262.882813] sd 7:0:0:0: [sdk] Asking for cache data failed > [ 2262.894986] sd 9:0:0:0: [sdn] 16384 512-byte logical blocks: (8.39 > MB/8.00 MiB) > [ 2262.899142] sd 7:0:0:0: [sdk] Assuming drive cache: write through > [ 2262.904537] sd 9:0:0:0: [sdn] Write Protect is off > [ 2262.984722] sd 9:0:0:0: [sdn] Asking for cache data failed > [ 2262.990195] sd 9:0:0:0: [sdn] Assuming drive cache: write through > [ 2263.015502] sd 10:0:0:0: [sdl] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2263.024985] sd 10:0:0:0: [sdl] Sense not available. > [ 2263.052711] sd 8:0:0:0: [sdm] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2263.055557] sd 9:0:0:0: [sdn] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2263.062092] sd 8:0:0:0: [sdm] Sense not available. > [ 2263.066282] sd 7:0:0:0: [sdk] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2263.066288] sd 7:0:0:0: [sdk] Sense not available. > [ 2263.066304] sd 7:0:0:0: [sdk] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2263.066308] sd 7:0:0:0: [sdk] Sense not available. > [ 2263.066338] sd 7:0:0:0: [sdk] Attached SCSI disk > [ 2263.071479] sd 9:0:0:0: [sdn] Sense not available. > [ 2263.114031] sd 8:0:0:0: [sdm] Attached SCSI disk > [ 2263.178933] scsi 8:0:0:0: Direct-Access Linux scsi_debug > 0190 PQ: 0 ANSI: 7 > [ 2263.187276] sd 8:0:0:0: Attached scsi generic sg14 type 0 > [ 2263.187370] sd 8:0:0:0: Power-on or device reset occurred > [ 2263.198126] sd 8:0:0:0: [sdm] Read Capacity(16) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2263.207522] sd 8:0:0:0: [sdm] Sense not available. > [ 2263.212312] sd 8:0:0:0: [sdm] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2263.212722] sd 10:0:0:0: [sdl] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2263.221703] sd 8:0:0:0: [sdm] Sense not available. > [ 2263.231165] sd 10:0:0:0: [sdl] Sense not available. > [ 2263.235953] sd 8:0:0:0: [sdm] 0 512-byte logical blocks: (0 B/0 B) > [ 2263.240837] sd 10:0:0:0: [sdl] Attached SCSI disk > [ 2263.246992] sd 8:0:0:0: [sdm] 0-byte physical blocks > [ 2263.256637] sd 8:0:0:0: [sdm] Write Protect is off > [ 2263.261422] sd 8:0:0:0: [sdm] Asking for cache data failed > [ 2263.266903] sd 8:0:0:0: [sdm] Assuming drive cache: write through > [ 2263.293351] sd 9:0:0:0: [sdn] Read Capacity(10) failed: Result: > hostbyte=DID_ERROR driverbyte=DRIVER_OK > [ 2263.298586] ------------[ cut here ]------------ > [ 2263.302739] sd 9:0:0:0: [sdn] Sense not available. > [ 2263.307335] WARNING: CPU: 109 PID: 739473 at block/blk-stat.c:218 > blk_free_queue_stats+0x3c/0x80 > [ 2263.312121] sd 9:0:0:0: [sdn] 0 512-byte logical blocks: (0 B/0 B) > [ 2263.320880] Modules linked in: scsi_debug dm_log_writes rfkill > mlx5_ib ib_uverbs ib_core sunrpc mlx5_core mlxfw psample acpi_ipmi > i2c_smbus tls joydev ipmi_ssif ipmi_devintf ipmi_msghandler vfat fat > thunderx2_pmu fuse > [ 2263.327074] sdn: detected capacity change from 16384 to 0 > [ 2263.327076] zram ip_tables > [ 2263.346360] sd 9:0:0:0: [sdn] Attached SCSI disk > [ 2263.351733] xfs crct10dif_ce ast ghash_ce i2c_algo_bit > drm_vram_helper drm_kms_helper syscopyarea sysfillrect sysimgblt > fb_sys_fops cec drm_ttm_helper ttm drm gpio_xlp i2c_xlp9xx uas > usb_storage aes_neon_bs > [ 2263.377547] CPU: 109 PID: 739473 Comm: check Not tainted 5.15.0-rc6 #1 > [ 2263.384064] Hardware name: HPE Apollo 70 /C01_APACHE_MB > , BIOS L50_5.13_1.11 06/18/2019 > [ 2263.393790] pstate: 20400009 (nzCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) > [ 2263.400741] pc : blk_free_queue_stats+0x3c/0x80 > [ 2263.405259] lr : blk_release_queue+0x48/0x140 > [ 2263.409604] sp : ffff80002c3c3aa0 > [ 2263.412906] x29: ffff80002c3c3aa0 x28: ffff00089e500000 x27: 0000000000000000 > [ 2263.420031] x26: ffff000815f5d428 x25: dead000000000100 x24: dead000000000122 > [ 2263.427156] x23: ffff000815f56150 x22: 0000000000000000 x21: ffff0008a85a0860 > [ 2263.434280] x20: ffff8000120351a8 x19: ffff0008a85a07e0 x18: ffffffffffffffff > [ 2263.441404] x17: 303a377465677261 x16: 742f3774736f682f x15: 0000000000000000 > [ 2263.448528] x14: 0000000000000001 x13: 0000000000000040 x12: 0000000000000040 > [ 2263.455652] x11: ffff000800400b68 x10: ffff000800400b6a x9 : ffff80001077604c > [ 2263.462776] x8 : ffff000800405ff8 x7 : 0000000000000000 x6 : ffff000800406160 > [ 2263.469900] x5 : 0000000000000000 x4 : 0000000000000003 x3 : 0000000000000000 > [ 2263.477024] x2 : 0000000000002710 x1 : ffff00088ab81b80 x0 : ffff0008a21cfa80 > [ 2263.484149] Call trace: > [ 2263.486584] blk_free_queue_stats+0x3c/0x80 > [ 2263.490755] blk_release_queue+0x48/0x140 > [ 2263.494752] kobject_cleanup+0x4c/0x180 > [ 2263.498578] kobject_put+0x50/0xd0 > [ 2263.501968] blk_put_queue+0x20/0x30 > [ 2263.505535] scsi_device_dev_release_usercontext+0x160/0x244 > [ 2263.511188] execute_in_process_context+0x50/0xa0 > [ 2263.515883] scsi_device_dev_release+0x28/0x3c > [ 2263.520316] device_release+0x40/0xa0 > [ 2263.523968] kobject_cleanup+0x4c/0x180 > [ 2263.527792] kobject_put+0x50/0xd0 > [ 2263.531182] put_device+0x20/0x30 > [ 2263.534485] scsi_device_put+0x38/0x50 > [ 2263.538224] sdev_store_delete+0x90/0xf0 > [ 2263.542136] dev_attr_store+0x24/0x40 > [ 2263.545786] sysfs_kf_write+0x50/0x60 > [ 2263.549436] kernfs_fop_write_iter+0x134/0x1c4 > [ 2263.553869] new_sync_write+0xdc/0x15c > [ 2263.557609] vfs_write+0x230/0x2d0 > [ 2263.560998] ksys_write+0x64/0xec > [ 2263.564301] __arm64_sys_write+0x28/0x34 > [ 2263.568212] invoke_syscall+0x50/0x120 > [ 2263.571953] el0_svc_common.constprop.0+0x4c/0x100 > [ 2263.576732] do_el0_svc+0x34/0xa0 > [ 2263.580035] el0_svc+0x30/0xd0 > [ 2263.583081] el0t_64_sync_handler+0xa4/0x130 > [ 2263.587340] el0t_64_sync+0x1a4/0x1a8 > [ 2263.590991] ---[ end trace 1631cb4f2dc87b68 ]--- > > > -- > Best Regards, > Yi Zhang -- Best Regards, Yi Zhang