On Saturday 12 March 2022 15:44:15 Ondrej Zary wrote: > The pata_parport is a libata-based replacement of the old PARIDE > subsystem - driver for parallel port IDE devices. > It uses the original paride low-level protocol drivers but does not > need the high-level drivers (pd, pcd, pf, pt, pg). The IDE devices > behind parallel port adapters are handled by the ATA layer. > > This will allow paride and its high-level drivers to be removed. > > paride and pata_parport are mutually exclusive because the compiled > protocol drivers are incompatible. > > Tested with Imation SuperDisk LS-120 and HP C4381A (both use EPAT > chip). > > Note: EPP-32 mode is buggy in EPAT - and also in all other protocol > drivers - they don't handle non-multiple-of-4 block transfers > correctly. This causes problems with LS-120 drive. > There is also another bug in EPAT: EPP modes don't work unless a 4-bit > or 8-bit mode is used first (probably some initialization missing?). > Once the device is initialized, EPP works until power cycle. > > So after device power on, you have to: > echo "parport0 epat 0" >/sys/bus/pata_parport/new_device > echo pata_parport.0 >/sys/bus/pata_parport/delete_device > echo "parport0 epat 4" >/sys/bus/pata_parport/new_device > (autoprobe will initialize correctly as it tries the slowest modes > first but you'll get the broken EPP-32 mode) Found a bug - the same device can be registered multiple times. Fix will be in v2. But this revealed a bigger problem: pi_connect can sleep (uses parport_claim_or_block) and libata does not like that. Any ideas how to fix this? Mar 12 18:47:13 test kernel: [ 348.863534] pata_parport: protocol epat registered Mar 12 18:47:16 test kernel: [ 352.226932] (null): epat 1.02, Shuttle EPAT chip c6 at 0x378, Mar 12 18:47:16 test kernel: [ 352.226943] mode 2 (8-bit), delay 1 Mar 12 18:47:16 test kernel: [ 352.255210] scsi host4: pata_parport Mar 12 18:47:16 test kernel: [ 352.255359] ata5: PATA max PIO0 port parport0 protocol epat Mar 12 18:47:17 test kernel: [ 352.489441] ata5.00: ATAPI: LS-120 COSM 04 UHD Floppy, 0270M09T, max PIO2 Mar 12 18:47:17 test kernel: [ 352.572733] scsi 4:0:0:0: Direct-Access MATSHITA LS-120 COSM 04 0270 PQ: 0 ANSI: 5 Mar 12 18:47:17 test kernel: [ 352.608160] sd 4:0:0:0: Attached scsi generic sg1 type 0 Mar 12 18:47:17 test kernel: [ 352.635053] sd 4:0:0:0: [sdb] Media removed, stopped polling Mar 12 18:47:17 test kernel: [ 352.658924] sd 4:0:0:0: [sdb] Attached SCSI removable disk Mar 12 18:47:31 test kernel: [ 366.811817] (null): epat 1.02, Shuttle EPAT chip c6 at 0x378, Mar 12 18:47:31 test kernel: [ 366.811828] mode 2 (8-bit), delay 1 Mar 12 18:47:31 test kernel: [ 366.846397] scsi host5: pata_parport Mar 12 18:47:31 test kernel: [ 366.846557] ata6: PATA max PIO0 port parport0 protocol epat Mar 12 18:47:31 test kernel: [ 367.076726] ata6.00: ATAPI: LS-120 COSM 04 UHD Floppy, 0270M09T, max PIO2 Mar 12 18:47:31 test kernel: [ 367.157050] scsi 5:0:0:0: Direct-Access MATSHITA LS-120 COSM 04 0270 PQ: 0 ANSI: 5 Mar 12 18:47:31 test kernel: [ 367.192614] sd 5:0:0:0: Attached scsi generic sg2 type 0 Mar 12 18:47:31 test kernel: [ 367.219398] sd 5:0:0:0: [sdc] Media removed, stopped polling Mar 12 18:47:31 test kernel: [ 367.243247] sd 5:0:0:0: [sdc] Attached SCSI removable disk Mar 12 18:47:32 test kernel: [ 367.542155] Modules linked in: epat pata_parport nouveau snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm psmouse snd_timer snd soundcore wmi hwmon serio_raw drm_ttm_helper 8139cp sg intel_agp i2c_dev parport_pc parport fuse Mar 12 18:47:32 test kernel: [ 367.542219] CPU: 0 PID: 17 Comm: kworker/0:1 Not tainted 5.17.0-rc2+ #441 Mar 12 18:47:32 test kernel: [ 367.542227] Hardware name: /848P-ICH5, BIOS 6.00 PG 02/03/2005 Mar 12 18:47:32 test kernel: [ 367.542232] Workqueue: events_freezable_power_ disk_events_workfn Mar 12 18:47:32 test kernel: [ 367.542242] Call Trace: Mar 12 18:47:32 test kernel: [ 367.542250] dump_stack_lvl+0x32/0x41 Mar 12 18:47:32 test kernel: [ 367.542259] ? preempt_count_add+0x4c/0x51 Mar 12 18:47:32 test kernel: [ 367.542266] dump_stack+0xd/0x10 Mar 12 18:47:32 test kernel: [ 367.542271] __schedule_bug+0x90/0xa1 Mar 12 18:47:32 test kernel: [ 367.542281] __schedule+0x3b/0x456 Mar 12 18:47:32 test kernel: [ 367.542289] schedule+0x68/0xa3 Mar 12 18:47:32 test kernel: [ 367.542296] parport_claim_or_block+0x68/0xa5 [parport] Mar 12 18:47:32 test kernel: [ 367.542307] ? init_wait_entry+0x21/0x21 Mar 12 18:47:32 test kernel: [ 367.542315] pi_connect+0x2b/0x3e [pata_parport] Mar 12 18:47:32 test kernel: [ 367.542323] pata_parport_check_status+0x16/0x4e [pata_parport] Mar 12 18:47:32 test kernel: [ 367.542329] ? pata_parport_lost_interrupt+0x7c/0x7c [pata_parport] Mar 12 18:47:32 test kernel: [ 367.542336] ata_sff_busy_wait+0x27/0x3b Mar 12 18:47:32 test kernel: [ 367.542345] ata_wait_idle+0x12/0x14 Mar 12 18:47:32 test kernel: [ 367.542350] ata_sff_qc_issue+0x27/0x106 Mar 12 18:47:32 test kernel: [ 367.542357] ata_qc_issue+0x14b/0x16b Mar 12 18:47:32 test kernel: [ 367.542364] __ata_scsi_queuecmd+0x1c7/0x1d4 Mar 12 18:47:32 test kernel: [ 367.542369] ? ata_scsiop_inq_83+0xb3/0xb3 Mar 12 18:47:32 test kernel: [ 367.542375] ata_scsi_queuecmd+0x36/0x5f Mar 12 18:47:32 test kernel: [ 367.542380] scsi_queue_rq+0x577/0x69e Mar 12 18:47:32 test kernel: [ 367.542389] blk_mq_dispatch_rq_list+0x229/0x3e4 Mar 12 18:47:32 test kernel: [ 367.542395] ? __sbitmap_get_word+0x28/0x5a Mar 12 18:47:32 test kernel: [ 367.542405] __blk_mq_sched_dispatch_requests+0x7b/0xdb Mar 12 18:47:32 test kernel: [ 367.542411] blk_mq_sched_dispatch_requests+0x25/0x46 Mar 12 18:47:32 test kernel: [ 367.542417] __blk_mq_run_hw_queue+0x36/0x6b Mar 12 18:47:32 test kernel: [ 367.542424] __blk_mq_delay_run_hw_queue+0x54/0x11d Mar 12 18:47:32 test kernel: [ 367.542431] blk_mq_run_hw_queue+0xa5/0xab Mar 12 18:47:32 test kernel: [ 367.542437] blk_mq_sched_insert_request+0xa2/0xaa Mar 12 18:47:32 test kernel: [ 367.542443] ? update_io_ticks+0x2a/0x5b Mar 12 18:47:32 test kernel: [ 367.542451] blk_execute_rq_nowait+0x3f/0x47 Mar 12 18:47:32 test kernel: [ 367.542457] blk_execute_rq+0x3a/0xa4 Mar 12 18:47:32 test kernel: [ 367.542463] __scsi_execute+0x90/0x133 Mar 12 18:47:32 test kernel: [ 367.542470] scsi_test_unit_ready+0x43/0x95 Mar 12 18:47:32 test kernel: [ 367.542477] sd_check_events+0x8b/0xf6 Mar 12 18:47:32 test kernel: [ 367.542483] ? media_not_present+0x3b/0x3b Mar 12 18:47:32 test kernel: [ 367.542489] disk_check_events+0x26/0xa3 Mar 12 18:47:32 test kernel: [ 367.542495] disk_events_workfn+0x10/0x12 Mar 12 18:47:32 test kernel: [ 367.542499] process_one_work+0x107/0x198 Mar 12 18:47:32 test kernel: [ 367.542508] worker_thread+0x151/0x1e3 Mar 12 18:47:32 test kernel: [ 367.542514] kthread+0xd2/0xd7 Mar 12 18:47:32 test kernel: [ 367.542519] ? rescuer_thread+0x1ec/0x1ec Mar 12 18:47:32 test kernel: [ 367.542525] ? kthread_complete_and_exit+0x16/0x16 Mar 12 18:47:32 test kernel: [ 367.542531] ret_from_fork+0x19/0x28 Mar 12 18:47:32 test kernel: [ 367.542540] ------------[ cut here ]------------ Mar 12 18:47:32 test kernel: [ 367.542543] Voluntary context switch within RCU read-side critical section! Mar 12 18:47:32 test kernel: [ 367.542552] WARNING: CPU: 0 PID: 17 at kernel/rcu/tree_plugin.h:318 rcu_note_context_switch+0x4e/0x27f Mar 12 18:47:32 test kernel: [ 367.542568] Modules linked in: epat pata_parport nouveau snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm psmouse snd_timer snd soundcore wmi hwmon serio_raw drm_ttm_helper 8139cp sg intel_agp i2c_dev parport_pc parport fuse Mar 12 18:47:32 test kernel: [ 367.542605] CPU: 0 PID: 17 Comm: kworker/0:1 Tainted: G W 5.17.0-rc2+ #441 Mar 12 18:47:32 test kernel: [ 367.542612] Hardware name: /848P-ICH5, BIOS 6.00 PG 02/03/2005 Mar 12 18:47:32 test kernel: [ 367.542616] Workqueue: events_freezable_power_ disk_events_workfn Mar 12 18:47:32 test kernel: [ 367.542624] EIP: rcu_note_context_switch+0x4e/0x27f Mar 12 18:47:32 test kernel: [ 367.542631] Code: 80 7d e3 00 75 27 8b 86 fc 01 00 00 85 c0 7e 1d 80 3d 95 06 87 d8 00 75 14 68 43 ad 6e d8 c6 05 95 06 87 d8 01 e8 ce e9 50 00 <0f> 0b 58 64 a1 cc 86 90 d8 8b 80 fc 01 00 00 85 c0 0f 8e dc 01 00 Mar 12 18:47:32 test kernel: [ 367.542637] EAX: 0000003f EBX: c10bb780 ECX: ef9939cc EDX: 00000002 Mar 12 18:47:32 test kernel: [ 367.542643] ESI: c10bb780 EDI: ef997840 EBP: c1093c5c ESP: c1093c38 Mar 12 18:47:32 test kernel: [ 367.542648] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010096 Mar 12 18:47:32 test kernel: [ 367.542654] CR0: 80050033 CR2: b5126000 CR3: 0d97c000 CR4: 00000690 Mar 12 18:47:32 test kernel: [ 367.542660] Call Trace: Mar 12 18:47:32 test kernel: [ 367.542665] ? preempt_count_add+0x4c/0x51 Mar 12 18:47:32 test kernel: [ 367.542672] ? dump_stack+0xd/0x10 Mar 12 18:47:32 test kernel: [ 367.542677] ? preempt_count_add+0x4c/0x51 Mar 12 18:47:32 test kernel: [ 367.542683] __schedule+0x63/0x456 Mar 12 18:47:32 test kernel: [ 367.542691] schedule+0x68/0xa3 Mar 12 18:47:32 test kernel: [ 367.542697] parport_claim_or_block+0x68/0xa5 [parport] Mar 12 18:47:32 test kernel: [ 367.542706] ? init_wait_entry+0x21/0x21 Mar 12 18:47:32 test kernel: [ 367.542713] pi_connect+0x2b/0x3e [pata_parport] Mar 12 18:47:32 test kernel: [ 367.542720] pata_parport_check_status+0x16/0x4e [pata_parport] Mar 12 18:47:32 test kernel: [ 367.542726] ? pata_parport_lost_interrupt+0x7c/0x7c [pata_parport] Mar 12 18:47:32 test kernel: [ 367.542733] ata_sff_busy_wait+0x27/0x3b Mar 12 18:47:32 test kernel: [ 367.542740] ata_wait_idle+0x12/0x14 Mar 12 18:47:32 test kernel: [ 367.542745] ata_sff_qc_issue+0x27/0x106 Mar 12 18:47:32 test kernel: [ 367.542752] ata_qc_issue+0x14b/0x16b Mar 12 18:47:32 test kernel: [ 367.542758] __ata_scsi_queuecmd+0x1c7/0x1d4 Mar 12 18:47:32 test kernel: [ 367.542763] ? ata_scsiop_inq_83+0xb3/0xb3 Mar 12 18:47:32 test kernel: [ 367.542769] ata_scsi_queuecmd+0x36/0x5f Mar 12 18:47:32 test kernel: [ 367.542774] scsi_queue_rq+0x577/0x69e Mar 12 18:47:32 test kernel: [ 367.542782] blk_mq_dispatch_rq_list+0x229/0x3e4 Mar 12 18:47:32 test kernel: [ 367.542789] ? __sbitmap_get_word+0x28/0x5a Mar 12 18:47:32 test kernel: [ 367.542797] __blk_mq_sched_dispatch_requests+0x7b/0xdb Mar 12 18:47:32 test kernel: [ 367.542804] blk_mq_sched_dispatch_requests+0x25/0x46 Mar 12 18:47:32 test kernel: [ 367.542809] __blk_mq_run_hw_queue+0x36/0x6b Mar 12 18:47:32 test kernel: [ 367.542816] __blk_mq_delay_run_hw_queue+0x54/0x11d Mar 12 18:47:32 test kernel: [ 367.542823] blk_mq_run_hw_queue+0xa5/0xab Mar 12 18:47:32 test kernel: [ 367.542829] blk_mq_sched_insert_request+0xa2/0xaa Mar 12 18:47:32 test kernel: [ 367.542835] ? update_io_ticks+0x2a/0x5b Mar 12 18:47:32 test kernel: [ 367.542842] blk_execute_rq_nowait+0x3f/0x47 Mar 12 18:47:32 test kernel: [ 367.542848] blk_execute_rq+0x3a/0xa4 Mar 12 18:47:32 test kernel: [ 367.542854] __scsi_execute+0x90/0x133 Mar 12 18:47:32 test kernel: [ 367.542861] scsi_test_unit_ready+0x43/0x95 Mar 12 18:47:32 test kernel: [ 367.542868] sd_check_events+0x8b/0xf6 Mar 12 18:47:32 test kernel: [ 367.542874] ? media_not_present+0x3b/0x3b Mar 12 18:47:32 test kernel: [ 367.542879] disk_check_events+0x26/0xa3 Mar 12 18:47:32 test kernel: [ 367.542885] disk_events_workfn+0x10/0x12 Mar 12 18:47:32 test kernel: [ 367.542890] process_one_work+0x107/0x198 Mar 12 18:47:32 test kernel: [ 367.542898] worker_thread+0x151/0x1e3 Mar 12 18:47:32 test kernel: [ 367.542904] kthread+0xd2/0xd7 Mar 12 18:47:32 test kernel: [ 367.542909] ? rescuer_thread+0x1ec/0x1ec Mar 12 18:47:32 test kernel: [ 367.542915] ? kthread_complete_and_exit+0x16/0x16 Mar 12 18:47:32 test kernel: [ 367.542921] ret_from_fork+0x19/0x28 Mar 12 18:47:32 test kernel: [ 367.542928] ---[ end trace 0000000000000000 ]--- Mar 12 18:47:32 test kernel: [ 367.650552] ------------[ cut here ]------------ Mar 12 18:47:32 test kernel: [ 367.650568] DEBUG_LOCKS_WARN_ON(val > preempt_count()) Mar 12 18:47:32 test kernel: [ 367.650576] WARNING: CPU: 0 PID: 17 at kernel/sched/core.c:5474 preempt_count_sub+0x3e/0x7f Mar 12 18:47:32 test kernel: [ 367.650595] Modules linked in: epat pata_parport nouveau snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm psmouse snd_timer snd soundcore wmi hwmon serio_raw drm_ttm_helper 8139cp sg intel_agp i2c_dev parport_pc parport fuse Mar 12 18:47:32 test kernel: [ 367.650641] CPU: 0 PID: 17 Comm: kworker/0:1 Tainted: G W 5.17.0-rc2+ #441 Mar 12 18:47:32 test kernel: [ 367.650649] Hardware name: /848P-ICH5, BIOS 6.00 PG 02/03/2005 Mar 12 18:47:32 test kernel: [ 367.650655] Workqueue: events_freezable_power_ disk_events_workfn Mar 12 18:47:32 test kernel: [ 367.650665] EIP: preempt_count_sub+0x3e/0x7f Mar 12 18:47:32 test kernel: [ 367.650672] Code: e2 ff ff ff 7f 39 c2 7d 25 e8 9d f4 19 00 85 c0 74 57 83 3d b4 2c 87 d8 00 75 4e 68 0a 6c 6e d8 68 db a7 6d d8 e8 3d b4 53 00 <0f> 0b eb 2e 3d fe 00 00 00 77 2b 84 d2 75 27 e8 6d f4 19 00 85 c0 Mar 12 18:47:32 test kernel: [ 367.650679] EAX: 0000002a EBX: 00000000 ECX: ef9939cc EDX: 00000001 Mar 12 18:47:32 test kernel: [ 367.650685] ESI: d4974000 EDI: 00000293 EBP: c1093d30 ESP: c1093d28 Mar 12 18:47:32 test kernel: [ 367.650690] DS: 007b ES: 007b FS: 00d8 GS: 0000 SS: 0068 EFLAGS: 00010292 Mar 12 18:47:32 test kernel: [ 367.650697] CR0: 80050033 CR2: b0eae6ec CR3: 035b5000 CR4: 00000690 Mar 12 18:47:32 test kernel: [ 367.650704] Call Trace: Mar 12 18:47:32 test kernel: [ 367.650711] _raw_spin_unlock_irqrestore+0x17/0x28 Mar 12 18:47:32 test kernel: [ 367.650720] ata_scsi_queuecmd+0x57/0x5f Mar 12 18:47:32 test kernel: [ 367.650728] scsi_queue_rq+0x577/0x69e Mar 12 18:47:32 test kernel: [ 367.650737] blk_mq_dispatch_rq_list+0x229/0x3e4 Mar 12 18:47:32 test kernel: [ 367.650743] ? __sbitmap_get_word+0x28/0x5a Mar 12 18:47:32 test kernel: [ 367.650753] __blk_mq_sched_dispatch_requests+0x7b/0xdb Mar 12 18:47:32 test kernel: [ 367.650760] blk_mq_sched_dispatch_requests+0x25/0x46 Mar 12 18:47:32 test kernel: [ 367.650766] __blk_mq_run_hw_queue+0x36/0x6b Mar 12 18:47:32 test kernel: [ 367.650774] __blk_mq_delay_run_hw_queue+0x54/0x11d Mar 12 18:47:32 test kernel: [ 367.650781] blk_mq_run_hw_queue+0xa5/0xab Mar 12 18:47:32 test kernel: [ 367.650788] blk_mq_sched_insert_request+0xa2/0xaa Mar 12 18:47:32 test kernel: [ 367.650793] ? update_io_ticks+0x2a/0x5b Mar 12 18:47:32 test kernel: [ 367.650801] blk_execute_rq_nowait+0x3f/0x47 Mar 12 18:47:32 test kernel: [ 367.650808] blk_execute_rq+0x3a/0xa4 Mar 12 18:47:32 test kernel: [ 367.650815] __scsi_execute+0x90/0x133 Mar 12 18:47:32 test kernel: [ 367.650822] scsi_test_unit_ready+0x43/0x95 Mar 12 18:47:32 test kernel: [ 367.650830] sd_check_events+0x8b/0xf6 Mar 12 18:47:32 test kernel: [ 367.650836] ? media_not_present+0x3b/0x3b Mar 12 18:47:32 test kernel: [ 367.650842] disk_check_events+0x26/0xa3 Mar 12 18:47:32 test kernel: [ 367.650848] disk_events_workfn+0x10/0x12 Mar 12 18:47:32 test kernel: [ 367.650853] process_one_work+0x107/0x198 Mar 12 18:47:32 test kernel: [ 367.650862] worker_thread+0x151/0x1e3 Mar 12 18:47:32 test kernel: [ 367.650868] kthread+0xd2/0xd7 Mar 12 18:47:32 test kernel: [ 367.650874] ? rescuer_thread+0x1ec/0x1ec Mar 12 18:47:32 test kernel: [ 367.650880] ? kthread_complete_and_exit+0x16/0x16 Mar 12 18:47:32 test kernel: [ 367.650886] ret_from_fork+0x19/0x28 Mar 12 18:47:32 test kernel: [ 367.650895] ---[ end trace 0000000000000000 ]--- Mar 12 18:47:32 test kernel: [ 367.658169] Modules linked in: epat pata_parport nouveau snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm psmouse snd_timer snd soundcore wmi hwmon serio_raw drm_ttm_helper 8139cp sg intel_agp i2c_dev parport_pc parport fuse Mar 12 18:47:32 test kernel: [ 367.658232] CPU: 0 PID: 561 Comm: scsi_eh_5 Tainted: G W 5.17.0-rc2+ #441 Mar 12 18:47:32 test kernel: [ 367.658240] Hardware name: /848P-ICH5, BIOS 6.00 PG 02/03/2005 Mar 12 18:47:32 test kernel: [ 367.658244] Call Trace: Mar 12 18:47:32 test kernel: [ 367.658251] dump_stack_lvl+0x32/0x41 Mar 12 18:47:32 test kernel: [ 367.658260] ? preempt_count_add+0x4c/0x51 Mar 12 18:47:32 test kernel: [ 367.658266] dump_stack+0xd/0x10 Mar 12 18:47:32 test kernel: [ 367.658272] __schedule_bug+0x90/0xa1 Mar 12 18:47:32 test kernel: [ 367.658278] __schedule+0x3b/0x456 Mar 12 18:47:32 test kernel: [ 367.658286] ? _raw_spin_lock_irqsave+0x1b/0x21 Mar 12 18:47:32 test kernel: [ 367.658293] schedule+0x68/0xa3 Mar 12 18:47:32 test kernel: [ 367.658300] parport_claim_or_block+0x68/0xa5 [parport] Mar 12 18:47:32 test kernel: [ 367.658313] ? init_wait_entry+0x21/0x21 Mar 12 18:47:32 test kernel: [ 367.658321] pi_connect+0x2b/0x3e [pata_parport] Mar 12 18:47:32 test kernel: [ 367.658329] pata_parport_check_status+0x16/0x4e [pata_parport] Mar 12 18:47:32 test kernel: [ 367.658338] pata_parport_drain_fifo+0x2b/0x7c [pata_parport] Mar 12 18:47:32 test kernel: [ 367.658345] ? ata_sff_prereset+0x7e/0x7e Mar 12 18:47:32 test kernel: [ 367.658354] ata_sff_error_handler+0x68/0xb6 Mar 12 18:47:32 test kernel: [ 367.658361] ? pata_parport_devchk+0x11e/0x11e [pata_parport] Mar 12 18:47:32 test kernel: [ 367.658369] ata_scsi_port_error_handler+0x1cf/0x46a Mar 12 18:47:32 test kernel: [ 367.658376] ata_scsi_error+0x74/0x85 Mar 12 18:47:32 test kernel: [ 367.658383] scsi_error_handler+0x11a/0x461 Mar 12 18:47:32 test kernel: [ 367.658391] ? _raw_spin_lock_irqsave+0x1b/0x21 Mar 12 18:47:32 test kernel: [ 367.658397] ? _raw_spin_unlock_irqrestore+0x17/0x28 Mar 12 18:47:32 test kernel: [ 367.658402] ? __kthread_parkme+0x2c/0x70 Mar 12 18:47:32 test kernel: [ 367.658409] kthread+0xd2/0xd7 Mar 12 18:47:32 test kernel: [ 367.658415] ? scsi_eh_get_sense+0x176/0x176 Mar 12 18:47:32 test kernel: [ 367.658421] ? kthread_complete_and_exit+0x16/0x16 Mar 12 18:47:32 test kernel: [ 367.658427] ret_from_fork+0x19/0x28 Mar 12 18:47:32 test kernel: [ 367.815293] sd 5:0:0:0: [sdc] Media removed, stopped polling -- Ondrej Zary
