Hi linux-scsi, I've got another case of reproducible crash when unplugging western digital passport drives. This was mentioned before in http://www.spinics.net/lists/linux-scsi/msg82603.html Is there any way I can get a more correct stacktrace of the original bug without changing/recompiling the kernel? (or with?) My last log from oops is: [ 3343.469871]: usb 4-1: USB disconnect, device number 3 [ 3343.521948]: BUG: unable to handle kernel NULL pointer dereference at 00000000000001a0 [ 3343.522052]: IP: [<ffffffff81285405>] blk_post_runtime_resume+0x65/0x80 [ 3343.522131]: PGD 0 [ 3343.522159]: Oops: 0002 [#1] PREEMPT SMP [ 3343.522215]: Modules linked in: nls_utf8 hfsplus ses enclosure uas usb_storage rfcomm fuse ctr ccm bnep ecb btusb bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_core v4l2_common videodev joydev media mousedev iTCO_wdt iTCO_vendor_support arc4 coretemp intel_rapl x86_pkg_temp_thermal intel_powerclamp iwldvm kvm_intel mac80211 kvm evdev mac_hid psmouse serio_raw pcspkr snd_hda_codec_hdmi iwlwifi snd_hda_codec_realtek i2c_i801 snd_hda_codec_generic rtsx_pci_ms i915 snd_hda_intel memstick snd_hda_controller cfg80211 snd_hda_codec r8169 snd_hwdep mii snd_pcm drm_kms_helper snd_timer lpc_ich shpchp drm thinkpad_acpi intel_gtt i2c_algo_bit nvram mei_me i2c_core snd mei soundcore led_class rfkill hwmon tpm_tis tpm battery wmi thermal video button processor ac sch_fq_codel usbhid hid_logitech_dj [ 3343.523406]: hid_generic hid nfs lockd grace sunrpc fscache ext4 crc16 mbcache jbd2 sha256_ssse3 sha256_generic algif_skcipher af_alg dm_crypt dm_mod sr_mod cdrom sd_mod rtsx_pci_sdmmc atkbd mmc_core libps2 crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel ahci libahci aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd libata xhci_pci ehci_pci scsi_mod xhci_hcd ehci_hcd rtsx_pci usbcore usb_common i8042 serio [ 3343.523825]: CPU: 1 PID: 22490 Comm: kworker/1:0 Not tainted 3.18.6-1-ARCH #1 [ 3343.523882]: Hardware name: LENOVO 2481CTO/2481CTO, BIOS G3ET36WW(1.10) 06/20/2012 [ 3343.523953]: Workqueue: usb_hub_wq hub_event [usbcore] [ 3343.523997]: task: ffff880211fd5080 ti: ffff8801971bc000 task.ti: ffff8801971bc000 [ 3343.524054]: RIP: 0010:[<ffffffff81285405>] [<ffffffff81285405>] blk_post_runtime_resume+0x65/0x80 [ 3343.524131]: RSP: 0018:ffff8801971bf8c8 EFLAGS: 00010092 [ 3343.524173]: RAX: 0000000000000000 RBX: ffff880211ca1698 RCX: 0000000000000000 [ 3343.524228]: RDX: 00000001000dea0f RSI: 0000000000000009 RDI: ffff880211ca1698 [ 3343.524283]: RBP: ffff8801971bf8d8 R08: 0000000000000000 R09: ffff880216c3f000 [ 3343.524338]: R10: ffff88021f256db0 R11: ffffea0002987d40 R12: 0000000000000000 [ 3343.524392]: R13: 0000000000000000 R14: ffff88020df7b428 R15: 0000000000000004 [ 3343.524448]: FS: 0000000000000000(0000) GS:ffff88021f240000(0000) knlGS:0000000000000000 [ 3343.524509]: CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 3343.524554]: CR2: 00000000000001a0 CR3: 0000000001811000 CR4: 00000000001407e0 [ 3343.524609]: Stack: [ 3343.524628]: ffff8802123fe968 0000000000000000 ffff8801971bf908 ffffffffa0119564 [ 3343.524695]: ffff8801971bf910 ffff8802123fe968 ffff8802123fea16 ffffffffa01194e0 [ 3343.524762]: ffff8801971bf938 ffffffff813c4636 ffff8800a61f5780 ffff8802123fe968 [ 3343.524828]: Call Trace: [ 3343.524866]: [<ffffffffa0119564>] scsi_runtime_resume+0x84/0xd0 [scsi_mod] [ 3343.524930]: [<ffffffffa01194e0>] ? scsi_autopm_put_device+0x20/0x20 [scsi_mod] [ 3343.524990]: [<ffffffff813c4636>] __rpm_callback+0x36/0x90 [ 3343.525035]: [<ffffffff813c46b6>] rpm_callback+0x26/0xa0 [ 3343.525079]: [<ffffffff813c5ad1>] rpm_resume+0x4b1/0x690 [ 3343.525124]: [<ffffffff813c5cf0>] __pm_runtime_resume+0x40/0x60 [ 3343.525177]: [<ffffffff813bb569>] __device_release_driver+0x29/0xf0 [ 3343.525228]: [<ffffffff813bb653>] device_release_driver+0x23/0x30 [ 3343.525277]: [<ffffffff813baf08>] bus_remove_device+0x108/0x180 [ 3343.525325]: [<ffffffff813b7249>] device_del+0x129/0x1f0 [ 3343.525378]: [<ffffffffa01170ed>] __scsi_remove_device+0xcd/0xe0 [scsi_mod] [ 3343.525442]: [<ffffffffa0115484>] scsi_forget_host+0x64/0x70 [scsi_mod] [ 3343.525502]: [<ffffffffa010970b>] scsi_remove_host+0x7b/0x130 [scsi_mod] [ 3343.525558]: [<ffffffffa0902419>] usb_stor_disconnect+0x59/0xd0 [usb_storage] [ 3343.525625]: [<ffffffffa007f878>] usb_unbind_interface+0x1f8/0x2c0 [usbcore] [ 3343.525682]: [<ffffffff813c5293>] ? rpm_idle+0x23/0x340 [ 3343.525729]: [<ffffffff813bb5bf>] __device_release_driver+0x7f/0xf0 [ 3343.525779]: [<ffffffff813bb653>] device_release_driver+0x23/0x30 [ 3343.525828]: [<ffffffff813baf08>] bus_remove_device+0x108/0x180 [ 3343.525876]: [<ffffffff813b7249>] device_del+0x129/0x1f0 [ 3343.528574]: [<ffffffffa007cd81>] usb_disable_device+0x91/0x290 [usbcore] [ 3343.531302]: [<ffffffffa00721b4>] usb_disconnect+0x94/0x2d0 [usbcore] [ 3343.533981]: [<ffffffffa00743fa>] hub_event+0x66a/0x1640 [usbcore] [ 3343.536657]: [<ffffffff81550f08>] ? __schedule+0x3e8/0xa50 [ 3343.539275]: [<ffffffff8108b845>] process_one_work+0x145/0x400 [ 3343.541919]: [<ffffffff8108be0b>] worker_thread+0x6b/0x480 [ 3343.544524]: [<ffffffff8108bda0>] ? init_pwq.part.22+0x10/0x10 [ 3343.547108]: [<ffffffff81090e6a>] kthread+0xea/0x100 [ 3343.549708]: [<ffffffff81090d80>] ? kthread_create_on_node+0x1c0/0x1c0 [ 3343.552384]: [<ffffffff8155563c>] ret_from_fork+0x7c/0xb0 [ 3343.555353]: [<ffffffff81090d80>] ? kthread_create_on_node+0x1c0/0x1c0 [ 3343.558225]: Code: 41 5c 5d c3 66 90 48 89 df c7 83 e8 04 00 00 00 00 00 00 e8 de eb ff ff 48 8b 83 e0 04 00 00 48 8b 15 00 ec 65 00 be 09 00 00 00 <48> 89 90 a0 01 00 00 48 8b bb e0 04 00 00 e8 28 0f 14 00 eb b3 [ 3343.563429]: RIP [<ffffffff81285405>] blk_post_runtime_resume+0x65/0x80 [ 3343.565800]: RSP <ffff8801971bf8c8> [ 3343.568107]: CR2: 00000000000001a0 [ 3343.583852]: ---[ end trace 1d6502d52258b48f ]--- [ 3343.583858]: note: kworker/1:0[22490] exited with preempt_count 1 [ 3343.583976]: BUG: unable to handle kernel paging request at ffffffffffffffd8 [ 3343.586210]: IP: [<ffffffff81091530>] kthread_data+0x10/0x20 -- KTHXBYE, Stanisław Pitucha -- 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
