On Monday 10 March 2014 12:07:56 Ed Tomlinson wrote: This seems fixed by "[PATCH] Input: mousedev - fix race when creating mixed device" which is in 3.14
Thanks Ed > This happens every couple of boots with 3.14-rc kernels have not noticed it > with 3.13. Not really sure where else this should be sent... > > Mar 10 10:45:05 localhost kernel: [ 4.740750] BUG: unable to handle kernel > NULL pointer dereference at (null) > Mar 10 10:45:05 localhost kernel: [ 4.740845] IP: [<ffffffffa02ee317>] > mousedev_open_device+0x77/0x100 [mousedev] > Mar 10 10:45:05 localhost kernel: [ 4.740930] PGD 412cfa067 PUD 41881e067 > PMD 0 > Mar 10 10:45:05 localhost kernel: [ 4.740989] Oops: 0000 [#1] PREEMPT SMP > Mar 10 10:45:05 localhost kernel: [ 4.741043] Modules linked in: > mousedev(+) pl2303 usbserial btusb joydev hid_generic snd_usb_audio usbhid > snd_usbmidi_lib snd_ > rawmidi hid snd_seq_device zram nct6775 hwmon_vid radeon ttm btrfs > snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi raid6_pq xor > iTCO_wdt iTCO_vendor > _support x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm > crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel aesni_intel > aes_x86_64 lrw gf1 > 28mul glue_helper ablk_helper cryptd psmouse pcspkr i2c_i801 serio_raw > tpm_tis tpm i915 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm drm_kms_helper > mei_me snd_tim > er e1000e drm nuvoton_cir mei snd rc_core shpchp intel_gtt ptp i2c_algo_bit > pps_core soundcore lpc_ich evdev microcode ath3k bluetooth 6lowpan_iphc > rfkill gspca_pa > c7311 gspca_ov519 gspca_main videodev media i2c_core video acpi_power_meter > thermal processor pci chipreg mtd fan button battery acpi_pad acpi_ipmi > ipmi_msghandler > ext4 crc16 mbcache jbd2 usb_storage sd_mod crc_t10dif crct10dif_common atkbd > libps2 ahci libahci libata ehci_pci xhci_hcd ehci_hcd scsi_mod usbcore > usb_common i80 > 42 serio > Mar 10 10:45:05 localhost kernel: [ 4.742722] CPU: 4 PID: 338 Comm: acpid > Not tainted 3.14.0-1-mainline #1 > Mar 10 10:45:05 localhost kernel: [ 4.742822] Hardware name: To Be Filled > By O.E.M. To Be Filled By O.E.M./Z87E-ITX, BIOS P2.30 12/06/2013 > Mar 10 10:45:05 localhost kernel: [ 4.742916] task: ffff8804170889e0 ti: > ffff8800c2800000 task.ti: ffff8800c2800000 > Mar 10 10:45:05 localhost kernel: [ 4.743013] RIP: > 0010:[<ffffffffa02ee317>] [<ffffffffa02ee317>] > mousedev_open_device+0x77/0x100 [mousedev] > Mar 10 10:45:05 localhost kernel: [ 4.743015] RSP: 0018:ffff8800c2801c10 > EFLAGS: 00010202 > Mar 10 10:45:05 localhost kernel: [ 4.743021] RAX: 0000000000000000 RBX: > ffff880404650800 RCX: ffff880404650868 > Mar 10 10:45:05 localhost kernel: [ 4.743023] RDX: 0000000000000000 RSI: > 0000000000000000 RDI: 0000000000000246 > Mar 10 10:45:05 localhost kernel: [ 4.743024] RBP: ffff8800c2801c28 R08: > 0000000000000000 R09: ffff88041e803600 > Mar 10 10:45:05 localhost kernel: [ 4.743025] R10: 0000000000000000 R11: > 0000000000000004 R12: 0000000000000000 > Mar 10 10:45:05 localhost kernel: [ 4.743027] R13: ffff880404650880 R14: > ffff88040a78f778 R15: ffff880417744c00 > Mar 10 10:45:05 localhost kernel: [ 4.743029] FS: 00007f93d2f6c700(0000) > GS:ffff88042f300000(0000) knlGS:0000000000000000 > Mar 10 10:45:05 localhost kernel: [ 4.743031] CS: 0010 DS: 0000 ES: 0000 > CR0: 0000000080050033 > Mar 10 10:45:05 localhost kernel: [ 4.743032] CR2: 0000000000000000 CR3: > 0000000417542000 CR4: 00000000001407e0 > Mar 10 10:45:05 localhost kernel: [ 4.743033] Stack: > Mar 10 10:45:05 localhost kernel: [ 4.743038] ffff880412de1c00 > ffff880404650800 ffff880404650878 ffff8800c2801c60 > Mar 10 10:45:05 localhost kernel: [ 4.743041] ffffffffa02ef0cc > ffff880404650b48 ffff88040a78f778 ffff880417744c00 > Mar 10 10:45:05 localhost kernel: [ 4.743045] ffffffffa02efe80 > ffff880417744c10 ffff8800c2801c98 ffffffff811b5e2f > Mar 10 10:45:05 localhost kernel: [ 4.743046] Call Trace: > Mar 10 10:45:05 localhost kernel: [ 4.743054] [<ffffffffa02ef0cc>] > mousedev_open+0xcc/0x150 [mousedev] > Mar 10 10:45:05 localhost kernel: [ 4.743061] [<ffffffff811b5e2f>] > chrdev_open+0x9f/0x1d0 > Mar 10 10:45:05 localhost kernel: [ 4.743068] [<ffffffff811af527>] > do_dentry_open+0x1b7/0x2c0 > Mar 10 10:45:05 localhost kernel: [ 4.743073] [<ffffffff811bc7e1>] ? > __inode_permission+0x41/0xb0 > Mar 10 10:45:05 localhost kernel: [ 4.743077] [<ffffffff811b5d90>] ? > cdev_put+0x30/0x30 > Mar 10 10:45:05 localhost kernel: [ 4.743081] [<ffffffff811af941>] > finish_open+0x31/0x40 > Mar 10 10:45:05 localhost kernel: [ 4.743086] [<ffffffff811bf612>] > do_last+0x572/0xe90 > Mar 10 10:45:05 localhost kernel: [ 4.743091] [<ffffffff811bcad6>] ? > link_path_walk+0x236/0x8d0 > Mar 10 10:45:05 localhost kernel: [ 4.743097] [<ffffffff811bffeb>] > path_openat+0xbb/0x6b0 > Mar 10 10:45:05 localhost kernel: [ 4.743102] [<ffffffff811c16fa>] > do_filp_open+0x3a/0x90 > Mar 10 10:45:05 localhost kernel: [ 4.743106] [<ffffffff811cddf7>] ? > __alloc_fd+0xa7/0x130 > Mar 10 10:45:05 localhost kernel: [ 4.743111] [<ffffffff811b0b14>] > do_sys_open+0x124/0x220 > Mar 10 10:45:05 localhost kernel: [ 4.743116] [<ffffffff811b0c2e>] > SyS_open+0x1e/0x20 > Mar 10 10:45:05 localhost kernel: [ 4.743120] [<ffffffff8153702d>] > system_call_fastpath+0x1a/0x1f > Mar 10 10:45:05 localhost kernel: [ 4.743151] Code: c0 f2 23 e1 5b 44 89 > e0 41 5c 41 5d 5d c3 66 0f 1f 44 00 00 4c 89 ef 41 bc ed ff ff ff e8 a2 f2 23 > e1 eb e0 > 48 8b 15 c9 21 00 00 <8b> 02 8d 48 01 85 c0 89 0a 75 c6 48 8b 05 37 1f 00 00 > 48 3d 60 > Mar 10 10:45:05 localhost kernel: [ 4.743156] RIP [<ffffffffa02ee317>] > mousedev_open_device+0x77/0x100 [mousedev] > Mar 10 10:45:05 localhost kernel: [ 4.743157] RSP <ffff8800c2801c10> > Mar 10 10:45:05 localhost kernel: [ 4.743158] CR2: 0000000000000000 > Mar 10 10:45:05 localhost kernel: [ 4.743200] ---[ end trace > 9ee5bcb02f264a08 ]--- > > The bug does not seem to hurt things much but... > > TIA > Ed Tomlinson > > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
