I've seen this panic once too with a broken SAS disk Jack > https://bugzilla.kernel.org/show_bug.cgi?id=43161 > > Summary: kernel panic upon inserting a USB harddisk > Product: SCSI Drivers > Version: 2.5 > Kernel Version: 3.4.0-rc1+ (linus git tree) > Platform: All > OS/Version: Linux > Tree: Mainline > Status: NEW > Severity: blocking > Priority: P1 > Component: Other > AssignedTo: scsi_drivers-other@xxxxxxxxxxxxxxxxxxxx > ReportedBy: htmldeveloper@xxxxxxxxx > Regression: No > > > I got a kernel crash upon inserting USB harddisk: > > > [100023.229073] BUG: unable to handle kernel NULL pointer dereference at > 000001fc > [100023.229150] IP: [<c0465e9d>] scsi_send_eh_cmnd+0x2d/0x300 > [100023.229193] *pde = 00000000 > [100023.229214] Oops: 0000 [#1] SMP > [100023.229239] Modules linked in: aes_i586 aes_generic des_generic md4 cifs > btrfs zlib_deflate crc32c libcrc32c bfs isofs nls_iso8859_1 nls_cp437 vfat fat > usb_storage snd_hrtimer binfmt_misc pci_stub vboxpci(O) vboxnetadp(O) > vboxnetflt(O) vboxdrv(O) nfsd kvm_intel kvm nfs lockd parport_pc ppdev fscache > auth_rpcgss nfs_acl sunrpc xfs exportfs arc4 iwlwifi i915 mac80211 > snd_hda_codec_conexant drm_kms_helper drm snd_hda_intel snd_hda_codec > snd_hwdep > snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq tpm_tis pcmcia > snd_timer snd_seq_device intel_agp i2c_algo_bit psmouse tpm coretemp tpm_bios > intel_gtt yenta_socket pcmcia_rsrc lp agpgart thinkpad_acpi video serio_raw > pcmcia_core nvram snd microcode soundcore parport cfg80211 snd_page_alloc > reiserfs usbhid hid firewire_ohci e1000e firewire_core crc_itu_t ahci libahci > [100023.229826] > [100023.229837] Pid: 24117, comm: scsi_eh_15 Tainted: G O > 3.4.0-rc1+ > #15 LENOVO 7440A82/7440A82 > [100023.229895] EIP: 0060:[<c0465e9d>] EFLAGS: 00010246 CPU: 1 > [100023.229928] EIP is at scsi_send_eh_cmnd+0x2d/0x300 > [100023.229955] EAX: 00000000 EBX: eece20c0 ECX: 00000006 EDX: f0c95ea0 > [100023.229991] ESI: 00000001 EDI: f0c95e90 EBP: f0c95f00 ESP: f0c95e74 > [100023.230027] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 > [100023.230045] CR0: 8005003b CR2: 000001fc CR3: 31abd000 CR4: 000407d0 > [100023.230045] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 > [100023.230045] DR6: ffff0ff0 DR7: 00000400 > [100023.230045] Process scsi_eh_15 (pid: 24117, ti=f0c94000 task=f4b9a5b0 > task.ti=f0c94000) > [100023.230045] Stack: > [100023.230045] f0c95e8c c014095c f35184bc 7fffffff f35184c0 00000006 > c0a38248 > f0c95ef4 > [100023.230045] c0627d4d c0997600 05f1a70a 00000092 f42a8c80 f48ea500 > 00010061 > f0c95ec4 > [100023.230045] c04ca1f4 f48ea500 f42a8c80 f48ea510 f0c95ed4 f0c95ed4 > 00000092 > 00000000 > [100023.230045] Call Trace: > [100023.230045] [<c014095c>] ? lock_timer_base+0x2c/0x60 > [100023.230045] [<c0627d4d>] ? schedule_timeout+0x19d/0x260 > [100023.230045] [<c04ca1f4>] ? start_unlink_async+0x94/0x100 > [100023.230045] [<c04ca61a>] ? ehci_urb_dequeue+0x7a/0xe0 > [100023.230045] [<c062a448>] ? _raw_spin_lock_irq+0x18/0x20 > [100023.230045] [<c046621b>] scsi_eh_tur+0x3b/0xa0 > [100023.230045] [<c04662e4>] scsi_eh_test_devices+0x64/0x140 > [100023.230045] [<fa01a901>] ? device_reset+0x31/0x50 [usb_storage] > [100023.230045] [<c0467228>] scsi_error_handler+0x458/0x610 > [100023.230045] [<c0466dd0>] ? scsi_eh_get_sense+0x1d0/0x1d0 > [100023.230045] [<c0151a0c>] kthread+0x7c/0x90 > [100023.230045] [<c0151990>] ? kthread_freezable_should_stop+0x60/0x60 > [100023.230045] [<c063167e>] kernel_thread_helper+0x6/0x10 > [100023.230045] Code: e5 57 56 53 83 c4 80 3e 8d 74 26 00 89 c3 65 a1 14 00 > 00 > 00 89 45 f0 31 c0 8b 43 54 8d 7d 90 89 55 8c 8d 55 a0 89 4d 88 8b 40 68 <8b> > 80 > fc 01 00 00 8b 00 89 45 84 8b 03 8b 30 8d 45 98 89 45 98 > [100023.230045] EIP: [<c0465e9d>] scsi_send_eh_cmnd+0x2d/0x300 SS:ESP > 0068:f0c95e74 > [100023.230045] CR2: 00000000000001fc > > -- > Configure bugmail: https://bugzilla.kernel.org/userprefs.cgi?tab=email > ------- You are receiving this mail because: ------- > You are watching the assignee of the bug. > -- > To unsubscribe from this list: send the line "unsubscribe linux-scsi" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html