Hi Few days ago I fried (?) my SD card (with custom Arduino-based hw :) and now every time I insert it into my Linux laptop, after ~10 seconds, kernel panics: [ 258.288466] BUG: unable to handle kernel NULL pointer dereference at 0000000000000040 [ 258.289742] IP: [<ffffffff814d0849>] sg_complete+0xb9/0x1d0 [ 258.290997] PGD 0 [ 258.292222] Oops: 0000 [#1] PREEMPT SMP [ 258.293443] Modules linked in: arc4 iwldvm mac80211 dm_crypt iwlwifi snd_hda_codec_hdmi cfg80211 snd_hda_codec_idt snd_hda_intel snd_hda_codec uvcvideo rts5139(C) snd_hwdep snd_pcm videobuf2_core videodev snd_seq_midi snd_rawmidi bnep videobuf2_vmalloc snd_seq_midi_event videobuf2_memops snd_seq coretemp psmouse snd_timer snd_seq_device snd rfcomm serio_raw dell_wmi btusb lpc_ich microcode soundcore snd_page_alloc dell_laptop dcdbas sparse_keymap bluetooth mac_hid parport_pc ppdev lp parport binfmt_misc hid_generic i915 ghash_clmulni_intel cryptd usbhid drm_kms_helper hid drm i2c_algo_bit video ahci libahci wmi [ 258.299260] CPU: 3 PID: 0 Comm: swapper/3 Tainted: G C 3.10.1 #22 [ 258.300711] Hardware name: Dell Inc. Inspiron 7720/04M3YM, BIOS A07 08/16/2012 [ 258.302190] task: ffff88013a344560 ti: ffff88013a34e000 task.ti: ffff88013a34e000 [ 258.303681] RIP: 0010:[<ffffffff814d0849>] [<ffffffff814d0849>] sg_complete+0xb9/0x1d0 [ 258.305204] RSP: 0018:ffff88013f2c3cc8 EFLAGS: 00010002 [ 258.306723] RAX: 00000000ffffff92 RBX: ffff88012ee30a70 RCX: 00000000000019ff [ 258.308260] RDX: ffff880130f17400 RSI: 0000000000000000 RDI: 0000000000000001 [ 258.309807] RBP: ffff88013f2c3cf8 R08: ffffffff81a3b1a8 R09: 00000000ffffff98 [ 258.311350] R10: 0000000000000001 R11: 0000000000000036 R12: 00000000ffffff98 [ 258.312887] R13: ffff88012f86ac00 R14: ffff88012ee30a80 R15: ffff8801302a7118 [ 258.314433] FS: 0000000000000000(0000) GS:ffff88013f2c0000(0000) knlGS:0000000000000000 [ 258.315998] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 258.317555] CR2: 0000000000000040 CR3: 0000000001c0b000 CR4: 00000000001407e0 [ 258.319138] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 258.320724] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 258.322298] Stack: [ 258.323866] ffff88012f86ac00 00000000ffffff98 ffff88012f86ac00 00000000ffffff98 [ 258.325485] ffff880130e18a74 ffff880130e18800 ffff88013f2c3d18 ffffffff814cd584 [ 258.327105] ffff88012f86ac00 00000000ffffff8d ffff88013f2c3d48 ffffffff814e1742 [ 258.328724] Call Trace: [ 258.330317] <IRQ> [ 258.330330] [<ffffffff814cd584>] usb_hcd_giveback_urb+0x44/0xa0 [ 258.333499] [<ffffffff814e1742>] ehci_urb_done+0x72/0xb0 [ 258.335092] [<ffffffff814e1d1e>] qh_completions+0x33e/0x430 [ 258.336687] [<ffffffff814e1f58>] end_unlink_async+0x148/0x250 [ 258.338280] [<ffffffff814e47d8>] ehci_irq+0xa8/0x2e0 [ 258.339872] [<ffffffff814cc90e>] usb_hcd_irq+0x2e/0x50 [ 258.341460] [<ffffffff811164a5>] handle_irq_event_percpu+0x75/0x250 [ 258.343057] [<ffffffff811166c8>] handle_irq_event+0x48/0x70 [ 258.344642] [<ffffffff811197ea>] handle_fasteoi_irq+0x5a/0x100 [ 258.346214] [<ffffffff81047222>] handle_irq+0x22/0x40 [ 258.347784] [<ffffffff816999fa>] do_IRQ+0x5a/0xd0 [ 258.349355] [<ffffffff81690caa>] common_interrupt+0x6a/0x6a [ 258.350909] <EOI> [ 258.350922] [<ffffffff810aed0a>] ? __hrtimer_start_range_ns+0x16a/0x460 [ 258.354032] [<ffffffff81547bbb>] ? cpuidle_enter_state+0x5b/0xe0 [ 258.355595] [<ffffffff81547bb7>] ? cpuidle_enter_state+0x57/0xe0 [ 258.357150] [<ffffffff81547cfb>] cpuidle_idle_call+0xbb/0x260 [ 258.358698] [<ffffffff8104e0fe>] arch_cpu_idle+0xe/0x30 [ 258.360241] [<ffffffff810d70b0>] cpu_startup_entry+0xd0/0x2d0 [ 258.361758] [<ffffffff810df126>] ? clockevents_config_and_register+0x26/0x30 [ 258.363263] [<ffffffff8167efb6>] start_secondary+0x1e3/0x1ea [ 258.364753] Code: 00 00 31 d2 45 85 c9 74 b7 41 f6 45 65 02 48 c7 c2 b7 b1 a3 81 45 89 e1 48 8b 73 18 49 c7 c0 a8 b1 a3 81 4c 0f 44 c2 49 8b 55 50 <48> 8b 7e 40 0f b6 4a 02 89 04 24 48 8d 56 04 48 8b 3f 31 c0 48 [ 258.368220] RIP [<ffffffff814d0849>] sg_complete+0xb9/0x1d0 [ 258.369869] RSP <ffff88013f2c3cc8> [ 258.371496] CR2: 0000000000000040 [ 258.373097] ---[ end trace e81441c38e5ace26 ]--- [ 258.374690] Kernel panic - not syncing: Fatal exception in interrupt [ 258.376291] drm_kms_helper: panic occurred, switching back to text console It happens both with 3.10.1 and 3.9.11 kernels. I traced it to io->dev being NULL in sg_complete. With the attached bandage Linux survives: [ 138.375564] sd 6:0:0:0: [sdb] 3862528 512-byte logical blocks: (1.97 GB/1.84 GiB) [ 138.375717] sd 6:0:0:0: [sdb] Cache data unavailable [ 138.375721] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 138.378277] sd 6:0:0:0: [sdb] Cache data unavailable [ 138.378279] sd 6:0:0:0: [sdb] Assuming drive cache: write through [ 138.394977] sdb: sdb1 [ 148.587252] (NULL device *): dev ??? ep2in scatterlist error -104/-110 [ 148.589748] sd 6:0:0:0: [sdb] Unhandled sense code [ 148.589753] sd 6:0:0:0: [sdb] [ 148.589756] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 148.589757] sd 6:0:0:0: [sdb] [ 148.589759] Sense Key : Medium Error [current] [ 148.589763] sd 6:0:0:0: [sdb] [ 148.589765] Add. Sense: Unrecovered read error [ 148.589767] sd 6:0:0:0: [sdb] CDB: [ 148.589769] Read(10): 28 00 00 00 03 ff 00 00 08 00 [ 148.589777] end_request: critical target error, dev sdb, sector 1023 [ 148.591429] Buffer I/O error on device sdb1, logical block 888 [ 148.593007] Buffer I/O error on device sdb1, logical block 889 [ 148.594563] Buffer I/O error on device sdb1, logical block 890 [ 148.596126] Buffer I/O error on device sdb1, logical block 891 [ 148.597676] Buffer I/O error on device sdb1, logical block 892 [ 148.599231] Buffer I/O error on device sdb1, logical block 893 [ 148.600755] Buffer I/O error on device sdb1, logical block 894 [ 148.602236] Buffer I/O error on device sdb1, logical block 895 [ 161.619466] sd 6:0:0:0: [sdb] Unhandled sense code [ 161.619473] sd 6:0:0:0: [sdb] [ 161.619476] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 161.619480] sd 6:0:0:0: [sdb] [ 161.619482] Sense Key : Medium Error [current] [ 161.619488] sd 6:0:0:0: [sdb] [ 161.619492] Add. Sense: Unrecovered read error [ 161.619497] sd 6:0:0:0: [sdb] CDB: [ 161.619499] Read(10): 28 00 00 00 03 ff 00 00 01 00 [ 161.619523] end_request: critical target error, dev sdb, sector 1023 [ 161.621111] Buffer I/O error on device sdb1, logical block 888 [ 164.626837] sd 6:0:0:0: [sdb] Unhandled sense code [ 164.626843] sd 6:0:0:0: [sdb] [ 164.626847] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 164.626850] sd 6:0:0:0: [sdb] [ 164.626852] Sense Key : Medium Error [current] [ 164.626857] sd 6:0:0:0: [sdb] [ 164.626860] Add. Sense: Unrecovered read error [ 164.626863] sd 6:0:0:0: [sdb] CDB: [ 164.626865] Read(10): 28 00 00 00 04 00 00 00 07 00 [ 164.626878] end_request: critical target error, dev sdb, sector 1024 [ 164.628305] Buffer I/O error on device sdb1, logical block 889 [ 164.629646] Buffer I/O error on device sdb1, logical block 890 [ 164.631047] Buffer I/O error on device sdb1, logical block 891 [ 164.632357] Buffer I/O error on device sdb1, logical block 892 [ 164.633673] Buffer I/O error on device sdb1, logical block 893 [ 164.634984] Buffer I/O error on device sdb1, logical block 894 [ 164.636257] Buffer I/O error on device sdb1, logical block 895 [ 167.642260] sd 6:0:0:0: [sdb] Unhandled sense code [ 167.642266] sd 6:0:0:0: [sdb] [ 167.642268] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 167.642271] sd 6:0:0:0: [sdb] [ 167.642273] Sense Key : Medium Error [current] [ 167.642277] sd 6:0:0:0: [sdb] [ 167.642280] Add. Sense: Unrecovered read error [ 167.642282] sd 6:0:0:0: [sdb] CDB: [ 167.642284] Read(10): 28 00 00 00 02 87 00 00 08 00 [ 167.642294] end_request: critical target error, dev sdb, sector 647 [ 167.643372] Buffer I/O error on device sdb1, logical block 512 [ 167.644372] Buffer I/O error on device sdb1, logical block 513 [ 170.649714] sd 6:0:0:0: [sdb] Unhandled sense code [ 170.649720] sd 6:0:0:0: [sdb] [ 170.649723] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 170.649725] sd 6:0:0:0: [sdb] [ 170.649727] Sense Key : Medium Error [current] [ 170.649730] sd 6:0:0:0: [sdb] [ 170.649733] Add. Sense: Unrecovered read error [ 170.649735] sd 6:0:0:0: [sdb] CDB: [ 170.649737] Read(10): 28 00 00 00 02 87 00 00 01 00 [ 170.649746] end_request: critical target error, dev sdb, sector 647 [ 170.650734] quiet_error: 6 callbacks suppressed [ 170.650736] Buffer I/O error on device sdb1, logical block 512 [ 173.657089] sd 6:0:0:0: [sdb] Unhandled sense code [ 173.657096] sd 6:0:0:0: [sdb] [ 173.657099] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 173.657101] sd 6:0:0:0: [sdb] [ 173.657103] Sense Key : Medium Error [current] [ 173.657107] sd 6:0:0:0: [sdb] [ 173.657110] Add. Sense: Unrecovered read error [ 173.657113] sd 6:0:0:0: [sdb] CDB: [ 173.657114] Read(10): 28 00 00 00 02 88 00 00 07 00 [ 173.657124] end_request: critical target error, dev sdb, sector 648 [ 173.658243] Buffer I/O error on device sdb1, logical block 513 [ 173.659296] Buffer I/O error on device sdb1, logical block 514 [ 173.660342] Buffer I/O error on device sdb1, logical block 515 [ 173.661361] Buffer I/O error on device sdb1, logical block 516 [ 173.662339] Buffer I/O error on device sdb1, logical block 517 [ 173.663298] Buffer I/O error on device sdb1, logical block 518 [ 173.664245] Buffer I/O error on device sdb1, logical block 519 [ 176.668635] sd 6:0:0:0: [sdb] Unhandled sense code [ 176.668642] sd 6:0:0:0: [sdb] [ 176.668646] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 176.668649] sd 6:0:0:0: [sdb] [ 176.668651] Sense Key : Medium Error [current] [ 176.668656] sd 6:0:0:0: [sdb] [ 176.668659] Add. Sense: Unrecovered read error [ 176.668663] sd 6:0:0:0: [sdb] CDB: [ 176.668665] Read(10): 28 00 00 00 00 a7 00 00 08 00 [ 176.668678] end_request: critical target error, dev sdb, sector 167 [ 176.669925] Buffer I/O error on device sdb1, logical block 32 [ 176.671115] Buffer I/O error on device sdb1, logical block 33 [ 179.676043] sd 6:0:0:0: [sdb] Unhandled sense code [ 179.676049] sd 6:0:0:0: [sdb] [ 179.676051] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 179.676052] sd 6:0:0:0: [sdb] [ 179.676054] Sense Key : Medium Error [current] [ 179.676058] sd 6:0:0:0: [sdb] [ 179.676060] Add. Sense: Unrecovered read error [ 179.676063] sd 6:0:0:0: [sdb] CDB: [ 179.676065] Read(10): 28 00 00 00 00 a7 00 00 01 00 [ 179.676074] end_request: critical target error, dev sdb, sector 167 [ 179.677211] quiet_error: 6 callbacks suppressed [ 179.677214] Buffer I/O error on device sdb1, logical block 32 [ 182.683472] sd 6:0:0:0: [sdb] Unhandled sense code [ 182.683479] sd 6:0:0:0: [sdb] [ 182.683482] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 182.683485] sd 6:0:0:0: [sdb] [ 182.683487] Sense Key : Medium Error [current] [ 182.683492] sd 6:0:0:0: [sdb] [ 182.683495] Add. Sense: Unrecovered read error [ 182.683498] sd 6:0:0:0: [sdb] CDB: [ 182.683500] Read(10): 28 00 00 00 00 a8 00 00 07 00 [ 182.683513] end_request: critical target error, dev sdb, sector 168 [ 182.684790] Buffer I/O error on device sdb1, logical block 33 [ 182.685930] Buffer I/O error on device sdb1, logical block 34 [ 182.687095] Buffer I/O error on device sdb1, logical block 35 [ 182.688193] Buffer I/O error on device sdb1, logical block 36 [ 182.689254] Buffer I/O error on device sdb1, logical block 37 [ 182.690333] Buffer I/O error on device sdb1, logical block 38 [ 182.691365] Buffer I/O error on device sdb1, logical block 39 [ 185.694924] sd 6:0:0:0: [sdb] Unhandled sense code [ 185.694931] sd 6:0:0:0: [sdb] [ 185.694934] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 185.694937] sd 6:0:0:0: [sdb] [ 185.694938] Sense Key : Medium Error [current] [ 185.694943] sd 6:0:0:0: [sdb] [ 185.694946] Add. Sense: Unrecovered read error [ 185.694949] sd 6:0:0:0: [sdb] CDB: [ 185.694950] Read(10): 28 00 00 00 10 87 00 00 01 00 [ 185.694962] end_request: critical target error, dev sdb, sector 4231 [ 185.695932] Buffer I/O error on device sdb1, logical block 4096 [ 188.702351] sd 6:0:0:0: [sdb] Unhandled sense code [ 188.702358] sd 6:0:0:0: [sdb] [ 188.702361] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 188.702364] sd 6:0:0:0: [sdb] [ 188.702366] Sense Key : Medium Error [current] [ 188.702371] sd 6:0:0:0: [sdb] [ 188.702374] Add. Sense: Unrecovered read error [ 188.702377] sd 6:0:0:0: [sdb] CDB: [ 188.702379] Read(10): 28 00 00 00 10 88 00 00 07 00 [ 188.702392] end_request: critical target error, dev sdb, sector 4232 [ 188.703575] Buffer I/O error on device sdb1, logical block 4097 [ 188.704608] Buffer I/O error on device sdb1, logical block 4098 [ 188.705660] Buffer I/O error on device sdb1, logical block 4099 [ 188.706702] Buffer I/O error on device sdb1, logical block 4100 [ 188.707686] Buffer I/O error on device sdb1, logical block 4101 [ 188.708743] Buffer I/O error on device sdb1, logical block 4102 [ 188.709703] Buffer I/O error on device sdb1, logical block 4103 [ 191.717720] sd 6:0:0:0: [sdb] Unhandled sense code [ 191.717727] sd 6:0:0:0: [sdb] [ 191.717730] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 191.717733] sd 6:0:0:0: [sdb] [ 191.717736] Sense Key : Medium Error [current] [ 191.717740] sd 6:0:0:0: [sdb] [ 191.717744] Add. Sense: Unrecovered read error [ 191.717747] sd 6:0:0:0: [sdb] CDB: [ 191.717749] Read(10): 28 00 00 00 00 00 00 00 08 00 [ 191.717761] end_request: critical target error, dev sdb, sector 0 [ 191.718737] Buffer I/O error on device sdb, logical block 0 [ 194.725258] sd 6:0:0:0: [sdb] Unhandled sense code [ 194.725264] sd 6:0:0:0: [sdb] [ 194.725267] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 194.725269] sd 6:0:0:0: [sdb] [ 194.725271] Sense Key : Medium Error [current] [ 194.725276] sd 6:0:0:0: [sdb] [ 194.725278] Add. Sense: Unrecovered read error [ 194.725281] sd 6:0:0:0: [sdb] CDB: [ 194.725283] Read(10): 28 00 00 00 00 00 00 00 08 00 [ 194.725293] end_request: critical target error, dev sdb, sector 0 [ 194.726174] Buffer I/O error on device sdb, logical block 0 [ 197.732800] sd 6:0:0:0: [sdb] Unhandled sense code [ 197.732807] sd 6:0:0:0: [sdb] [ 197.732810] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 197.732812] sd 6:0:0:0: [sdb] [ 197.732815] Sense Key : Medium Error [current] [ 197.732819] sd 6:0:0:0: [sdb] [ 197.732822] Add. Sense: Unrecovered read error [ 197.732825] sd 6:0:0:0: [sdb] CDB: [ 197.732827] Read(10): 28 00 00 00 00 00 00 00 08 00 [ 197.732839] end_request: critical target error, dev sdb, sector 0 [ 197.733830] Buffer I/O error on device sdb, logical block 0 [ 200.740099] sd 6:0:0:0: [sdb] Unhandled sense code [ 200.740106] sd 6:0:0:0: [sdb] [ 200.740109] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 200.740112] sd 6:0:0:0: [sdb] [ 200.740114] Sense Key : Medium Error [current] [ 200.740118] sd 6:0:0:0: [sdb] [ 200.740121] Add. Sense: Unrecovered read error [ 200.740124] sd 6:0:0:0: [sdb] CDB: [ 200.740126] Read(10): 28 00 00 00 00 00 00 00 08 00 [ 200.740137] end_request: critical target error, dev sdb, sector 0 [ 200.741394] Buffer I/O error on device sdb, logical block 0 [ 203.751384] sd 6:0:0:0: [sdb] Unhandled sense code [ 203.751390] sd 6:0:0:0: [sdb] [ 203.751393] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [ 203.751395] sd 6:0:0:0: [sdb] [ 203.751397] Sense Key : Medium Error [current] [ 203.751401] sd 6:0:0:0: [sdb] [ 203.751404] Add. Sense: Unrecovered read error [ 203.751407] sd 6:0:0:0: [sdb] CDB: [ 203.751409] Read(10): 28 00 00 00 00 00 00 00 08 00 [ 203.751420] end_request: critical target error, dev sdb, sector 0 [ 203.752412] Buffer I/O error on device sdb, logical block 0 What is interesting - on another box, Linux (3.9.6) survives card insertion: [ 2446.960993] sd 8:0:0:0: [sdc] 3862528 512-byte logical blocks: (1.97 GB/1.84 GiB) [ 2446.963237] sd 8:0:0:0: [sdc] No Caching mode page present [ 2446.963245] sd 8:0:0:0: [sdc] Assuming drive cache: write through [ 2446.966369] sd 8:0:0:0: [sdc] No Caching mode page present [ 2446.966377] sd 8:0:0:0: [sdc] Assuming drive cache: write through [ 2446.982859] sdc: sdc1 [ 2448.463726] sd 8:0:0:0: [sdc] Device not ready [ 2448.463737] sd 8:0:0:0: [sdc] [ 2448.463742] Result: hostbyte=0x00 driverbyte=0x08 [ 2448.463748] sd 8:0:0:0: [sdc] [ 2448.463752] Sense Key : 0x2 [current] [ 2448.463765] Info fld=0x0 [ 2448.463769] sd 8:0:0:0: [sdc] [ 2448.463773] <<vendor>> ASC=0xff ASCQ=0xffASC=0xff <<vendor>> ASCQ=0xff [ 2448.463783] sd 8:0:0:0: [sdc] CDB: [ 2448.463787] cdb[0]=0x28: 28 00 00 00 03 ff 00 00 08 00 [ 2448.463853] end_request: I/O error, dev sdc, sector 1023 [ 2448.463859] Buffer I/O error on device sdc1, logical block 888 [ 2448.463864] Buffer I/O error on device sdc1, logical block 889 [ 2448.463869] Buffer I/O error on device sdc1, logical block 890 [ 2448.463873] Buffer I/O error on device sdc1, logical block 891 [ 2448.463878] Buffer I/O error on device sdc1, logical block 892 [ 2448.463883] Buffer I/O error on device sdc1, logical block 893 [ 2448.463888] Buffer I/O error on device sdc1, logical block 894 [ 2448.463892] Buffer I/O error on device sdc1, logical block 895 [ 2449.491503] sd 8:0:0:0: [sdc] Device not ready [ 2449.491512] sd 8:0:0:0: [sdc] [ 2449.491517] Result: hostbyte=0x00 driverbyte=0x08 [ 2449.491522] sd 8:0:0:0: [sdc] [ 2449.491526] Sense Key : 0x2 [current] [ 2449.491538] Info fld=0x0 [ 2449.491543] sd 8:0:0:0: [sdc] [ 2449.491547] <<vendor>> ASC=0xff ASCQ=0xffASC=0xff <<vendor>> ASCQ=0xff [ 2449.491556] sd 8:0:0:0: [sdc] CDB: [ 2449.491559] cdb[0]=0x28: 28 00 00 00 04 01 00 00 06 00 [ 2449.491587] end_request: I/O error, dev sdc, sector 1025 [ 2449.491592] Buffer I/O error on device sdc1, logical block 890 [ 2449.491598] Buffer I/O error on device sdc1, logical block 891 [ 2500.907374] sdc: detected capacity change from 1977614336 to 0 If you want me to test some patches, just shout ;) Marcin
Attachment:
sg_complete_io_dev_crash_fix.patch
Description: Binary data
