From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Galbraith Subject: Re: Possible wireless issue introduced in next-20140930 Date: Thu, 23 Oct 2014 07:23:35 +0200 Message-ID: <1414041815.5228.37.camel@marge.simpson.net> References: <54487346.4080604@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org, linux-wireless@vger.kernel.org, Larry Finger , "John W. Linville" To: Murilo Opsfelder Araujo Return-path: In-Reply-To: <54487346.4080604@gmail.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Thu, 2014-10-23 at 01:17 -0200, Murilo Opsfelder Araujo wrote:=20 > Hello, everyone. >=20 > With next-20140930 my laptop does not work, i.e. after I enter my log= in=20 > and password in KDM, the entire system becomes unresponsive and I nee= d=20 > to reset it in order to reboot (it does not even show the KDE splash=20 > screen). >=20 > It was working pretty fine with next-20140926. >=20 > I've also tested with next-20141022 and v3.18-rc1 and no luck. >=20 > git bisect pointed me to the commit below [1]. My wireless card is a= =20 > RTL8191SEvA [2]. Mine is RTL8191SEvB. I was going to bisect RTL8191SE regression when I got a chance, but you beat me to it. > commit 38506ecefab911785d5e1aa5889f6eeb462e0954 > Author: Larry Finger > Date: Mon Sep 22 09:39:19 2014 -0500 >=20 > rtlwifi: rtl_pci: Start modification for new drivers Did you confirm that bisection result, ie revert it at HEAD of whicheve= r tree you bisected? The revert (master) removed some warnings on the way to kaboom here, bu= t the drivers is still toxic. My log follows in case it's the same thing= =2E I can't go hunting atm, maybe during the weekend if the problem hasn't evaporate by then. Master: [ 28.028817] cfg80211: Calling CRDA to update world regulatory domain [ 28.102230] cfg80211: World regulatory domain updated: [ 28.103799] cfg80211: DFS Master region: unset [ 28.103838] cfg80211: (start_freq - end_freq @ bandwidth), (max_an= tenna_gain, max_eirp), (dfs_cac_time) [ 28.107012] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (30= 0 mBi, 2000 mBm), (N/A) [ 28.108663] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (30= 0 mBi, 2000 mBm), (N/A) [ 28.110251] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (30= 0 mBi, 2000 mBm), (N/A) [ 28.111837] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (30= 0 mBi, 2000 mBm), (N/A) [ 28.113422] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (30= 0 mBi, 2000 mBm), (N/A) [ 29.577727] rtl8192se 0000:08:00.0: enabling device (0000 -> 0003) [ 29.618681] rtl8192se: FW Power Save off (module option) [ 29.620355] rtl8192se: Driver for Realtek RTL8192SE/RTL8191SE [ 29.620355] Loading firmware rtlwifi/rtl8192sefw.bin [ 29.648444] ------------[ cut here ]------------ [ 29.650012] WARNING: CPU: 1 PID: 59 at fs/sysfs/dir.c:31 sysfs_warn_= dup+0x68/0x80() [ 29.651602] sysfs: cannot create duplicate filename '/devices/pci000= 0:00/0000:00:1c.5/0000:08:00.0/ieee80211/phy0' [ 29.653278] Modules linked in: rtl8192se(+) rtl_pci rtlwifi mac80211= cfg80211 btusb bluetooth coretemp iTCO_wdt iTCO_vendor_support serio_r= aw microcode toshiba_acpi sparse_keymap snd_hda_codec_hdmi snd_hda_code= c_conexant rfkill snd_hda_codec_generic pcspkr uvcvideo videobuf2_core = v4l2_common videodev videobuf2_vmalloc videobuf2_memops joydev i2c_i801= wmi lpc_ich mfd_core acpi_cpufreq toshiba_haps snd_hda_intel snd_hda_c= ontroller snd_hda_codec snd_hwdep toshiba_bluetooth snd_pcm snd_seq snd= _timer snd_seq_device snd battery ac soundcore sg autofs4 i915 drm_kms_= helper drm i2c_algo_bit thermal video processor thermal_sys button scsi= _dh_rdac scsi_dh_alua scsi_dh_emc scsi_dh_hp_sw scsi_dh netconsole atl1= c [ 29.655223] CPU: 1 PID: 59 Comm: kworker/1:4 Not tainted 3.18.0-mast= er #48 [ 29.655225] Hardware name: TOSHIBA =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD/=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD, BIOS V1.70 09/29/2009 [ 29.655231] Workqueue: events request_firmware_work_func [ 29.655235] 0000000000000009 ffff8800379bba98 ffffffff8158f1d4 0000= 00000000c5c5 [ 29.655238] ffff8800379bbae8 ffff8800379bbad8 ffffffff8104c801 0000= 000000003664 [ 29.655241] ffff880037b0c000 ffff880136392dc0 ffff8800371feeb0 ffff= 88013b027098 [ 29.655242] Call Trace: [ 29.655248] [] dump_stack+0x46/0x58 [ 29.655253] [] warn_slowpath_common+0x81/0xa0 [ 29.655256] [] warn_slowpath_fmt+0x46/0x50 [ 29.655261] [] ? kernfs_path+0x48/0x60 [ 29.655263] [] sysfs_warn_dup+0x68/0x80 [ 29.655266] [] sysfs_create_dir_ns+0x8e/0xa0 [ 29.655270] [] kobject_add_internal+0xc9/0x400 [ 29.655273] [] kobject_add+0x60/0xb0 [ 29.655276] [] ? mutex_lock+0x16/0x37 [ 29.655281] [] device_add+0x104/0x600 [ 29.655285] [] ? lazy_max_pages+0x1e/0x30 [ 29.655312] [] wiphy_register+0x3fd/0x710 [cfg802= 11] [ 29.655315] [] ? __vunmap+0xc2/0x110 [ 29.655346] [] ? ieee80211_register_hw+0x1ec/0x9a= 0 [mac80211] [ 29.655361] [] ieee80211_register_hw+0x368/0x9a0 = [mac80211] [ 29.655369] [] rtl92se_fw_cb+0xab/0x1d0 [rtl8192s= e] [ 29.655373] [] request_firmware_work_func+0x30/0x= 60 [ 29.655378] [] process_one_work+0x14d/0x3d0 [ 29.655381] [] worker_thread+0x121/0x480 [ 29.655384] [] ? process_one_work+0x3d0/0x3d0 [ 29.655387] [] kthread+0xc9/0xe0 [ 29.655390] [] ? __kthread_parkme+0x80/0x80 [ 29.655394] [] ret_from_fork+0x7c/0xb0 [ 29.655397] [] ? __kthread_parkme+0x80/0x80 [ 29.655399] ---[ end trace 3935ea42665e29bc ]--- [ 29.655401] ------------[ cut here ]------------ [ 29.655404] WARNING: CPU: 1 PID: 59 at lib/kobject.c:240 kobject_add= _internal+0x294/0x400() [ 29.655406] kobject_add_internal failed for phy0 with -EEXIST, don't= try to register things with the same name in the same directory. [ 29.655442] Modules linked in: rtl8192se(+) rtl_pci rtlwifi mac80211= cfg80211 btusb bluetooth coretemp iTCO_wdt iTCO_vendor_support serio_r= aw microcode toshiba_acpi sparse_keymap snd_hda_codec_hdmi snd_hda_code= c_conexant rfkill snd_hda_codec_generic pcspkr uvcvideo videobuf2_core = v4l2_common videodev videobuf2_vmalloc videobuf2_memops joydev i2c_i801= wmi lpc_ich mfd_core acpi_cpufreq toshiba_haps snd_hda_intel snd_hda_c= ontroller snd_hda_codec snd_hwdep toshiba_bluetooth snd_pcm snd_seq snd= _timer snd_seq_device snd battery ac soundcore sg autofs4 i915 drm_kms_= helper drm i2c_algo_bit thermal video processor thermal_sys button scsi= _dh_rdac scsi_dh_alua scsi_dh_emc scsi_dh_hp_sw scsi_dh netconsole atl1= c [ 29.655444] CPU: 1 PID: 59 Comm: kworker/1:4 Tainted: G W = 3.18.0-master #48 [ 29.655446] Hardware name: TOSHIBA =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD/=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD, BIOS V1.70 09/29/2009 [ 29.655449] Workqueue: events request_firmware_work_func [ 29.655452] 0000000000000009 ffff8800379bbaf8 ffffffff8158f1d4 0000= 000000004e4e [ 29.655455] ffff8800379bbb48 ffff8800379bbb38 ffffffff8104c801 ffff= 8800379bbb38 [ 29.655458] ffff880036470350 00000000ffffffef ffff8800367d72c0 ffff= 88013b027098 [ 29.655459] Call Trace: [ 29.655462] [] dump_stack+0x46/0x58 [ 29.655465] [] warn_slowpath_common+0x81/0xa0 [ 29.655468] [] warn_slowpath_fmt+0x46/0x50 [ 29.655471] [] kobject_add_internal+0x294/0x400 [ 29.655474] [] kobject_add+0x60/0xb0 [ 29.655477] [] ? mutex_lock+0x16/0x37 [ 29.655480] [] device_add+0x104/0x600 [ 29.655483] [] ? lazy_max_pages+0x1e/0x30 [ 29.655496] [] wiphy_register+0x3fd/0x710 [cfg802= 11] [ 29.655498] [] ? __vunmap+0xc2/0x110 [ 29.655512] [] ? ieee80211_register_hw+0x1ec/0x9a= 0 [mac80211] [ 29.655526] [] ieee80211_register_hw+0x368/0x9a0 = [mac80211] [ 29.655533] [] rtl92se_fw_cb+0xab/0x1d0 [rtl8192s= e] [ 29.655536] [] request_firmware_work_func+0x30/0x= 60 [ 29.655540] [] process_one_work+0x14d/0x3d0 [ 29.655543] [] worker_thread+0x121/0x480 [ 29.655546] [] ? process_one_work+0x3d0/0x3d0 [ 29.655548] [] kthread+0xc9/0xe0 [ 29.655551] [] ? __kthread_parkme+0x80/0x80 [ 29.655555] [] ret_from_fork+0x7c/0xb0 [ 29.655557] [] ? __kthread_parkme+0x80/0x80 [ 29.655559] ---[ end trace 3935ea42665e29bd ]--- [ 29.655563] rtl8192se:rtl92se_fw_cb():<0-0> Can't register mac80211 = hw [ 29.818806] ieee80211 phy0: Selected rate control algorithm 'rtl_rc' [ 30.265418] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.267617] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.269767] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.271919] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.274034] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.276117] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process =2E.. more [ 30.684030] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.684408] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.684776] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.685139] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.685535] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.685901] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.686290] rtl8192se:rtl92se_get_desc(): ERR rxdesc :4 not process [ 30.686710] BUG: unable to handle kernel NULL pointer dereference at= (null) [ 30.687145] IP: [< (null)>] (null) [ 30.687592] PGD 137165067 PUD 135e2e067 PMD 0=20 [ 30.688094] Oops: 0010 [#1] SMP=20 [ 30.688601] Modules linked in: arc4 rtl8192se rtl_pci rtlwifi mac802= 11 cfg80211 btusb bluetooth[ 0.000000] Initializing cgroup subsys cp= uset [ 0.000000] Initializing cgroup subsys cpu [ 0.000000] Initializing cgroup subsys cpuacct (kdump tried to do its thing, but fscking systemd busted it, so, no oop= s/crash) Master with 38506ece reverted, kdump disabled: [ 19.383131] rtl8192se 0000:08:00.0: enabling device (0000 -> 0003) [ 19.424672] rtl8192se: FW Power Save off (module option) [ 19.427269] rtl8192se: Driver for Realtek RTL8192SE/RTL8191SE [ 19.427269] Loading firmware rtlwifi/rtl8192sefw.bin [ 19.525633] EXT4-fs (sda1): mounted filesystem with ordered data mod= e. Opts: acl [ 19.528188] ieee80211 phy0: Selected rate control algorithm 'rtl_rc' [ 25.515995] BUG: unable to handle kernel NULL pointer dereference at= (null) [ 25.516020] IP: [< (null)>] (null) [ 25.516020] PGD 362a6067 PUD 36d39067 PMD 0=20 [ 25.516020] Oops: 0010 [#1] SMP=20 [ 25.516020] Modules linked in: arc4 rtl8192se rtl_pci rtlwifi uvcvid= eo coretemp videobuf2_core mac80211 iTCO_wdt iTCO_vendor_support cfg802= 11 v4l2_common btusb videodev lpc_ich bluetooth mfd_core microcode tosh= iba_acpi sparse_keymap rfkill videobuf2_vmalloc videobuf2_memops serio_= raw i2c_i801 joydev snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_c= odec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep t= oshiba_haps wmi snd_pcm toshiba_bluetooth snd_seq snd_timer snd_seq_dev= ice snd battery[ 25.526648] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is= not ready [ 25.526604] soundcore ac acpi_cpufreq sg autofs4 i915 drm_kms_helpe= r drm i2c_algo_bit thermal video processor thermal_sys button scsi_dh_r= dac scsi_dh_alua scsi_dh_emc scsi_dh_hp_sw scsi_dh netconsole atl1c [ 25.526604] CPU: 1 PID: 21 Comm: kworker/1:1 Not tainted 3.18.0-mast= er #49 [ 25.526604] Hardware name: TOSHIBA =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD/=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD, BIOS V1.70 09/29/2009 [ 25.526604] Workqueue: rtl92s_pci rtl_watchdog_wq_callback [rtlwifi] [ 25.526604] task: ffff88013f2e2550 ti: ffff88013f2e4000 task.ti: fff= f88013f2e4000 [ 25.526604] RIP: 0010:[<0000000000000000>] [< (null)>] = (null) [ 25.526604] RSP: 0018:ffff88013f2e7d80 EFLAGS: 00010293 [ 25.526604] RAX: ffffffffa05363c0 RBX: ffff8800364019c0 RCX: 0000000= 000000000 [ 25.526604] RDX: 0000000000000001 RSI: 000000000000005d RDI: ffff880= 036400620 [ 25.526604] RBP: ffff88013f2e7df8 R08: ffffffff81658a40 R09: ffffc90= 022306aa0 [ 25.526604] R10: 000000000000037e R11: 0000000000aaaaaa R12: ffff880= 036400620 [ 25.526604] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000= 000000000 [ 25.526604] FS: 0000000000000000(0000) GS:ffff88013fd00000(0000) kn= lGS:0000000000000000 [ 25.526604] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 25.526604] CR2: 0000000000000000 CR3: 00000000365e2000 CR4: 0000000= 0000407e0 [ 25.526604] Stack: [ 25.526604] ffffffffa04ff51e ffff880037bdbc00 0000000000000002 ffff= 880037b8e400 [ 25.526604] 0000000037bdbe10 0000000000000000 0000000000000000 0000= 000000000000 [ 25.526604] 0000000000000000 ffff88013f2e7e38 ffff880036401be0 ffff= 88013f239700 [ 25.526604] Call Trace: [ 25.526604] [] ? rtl_watchdog_wq_callback+0xfe/0x= 420 [rtlwifi] [ 25.526604] [] process_one_work+0x14d/0x3d0 [ 25.526604] [] worker_thread+0x121/0x480 [ 25.526604] [] ? process_one_work+0x3d0/0x3d0 [ 25.526604] [] kthread+0xc9/0xe0 [ 25.526604] [] ? __kthread_parkme+0x80/0x80 [ 25.526604] [] ret_from_fork+0x7c/0xb0 [ 25.526604] [] ? __kthread_parkme+0x80/0x80 [ 25.526604] Code: Bad RIP value. [ 25.526604] RIP [< (null)>] (null) [ 25.526604] RSP [ 25.526604] CR2: 0000000000000000 [ 25.526604] ---[ end trace fc110bb3836ecc51 ]--- [ 25.607061] BUG: unable to handle kernel paging request at fffffffff= fffffd8 [ 25.609239] IP: [] kthread_data+0x11/0x20 [ 25.609239] PGD 1a16067 PUD 1a18067 PMD 0=20 [ 25.609239] Oops: 0000 [#2] SMP=20 [ 25.609239] Modules linked in: arc4 rtl8192se rtl_pci rtlwifi uvcvid= eo coretemp videobuf2_core mac80211 iTCO_wdt iTCO_vendor_support cfg802= 11 v4l2_common btusb videodev lpc_ich bluetooth mfd_core microcode tosh= iba_acpi sparse_keymap rfkill videobuf2_vmalloc videobuf2_memops serio_= raw i2c_i801 joydev snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_c= odec_generic snd_hda_intel snd_hda_controller snd_hda_codec snd_hwdep t= oshiba_haps wmi snd_pcm toshiba_bluetooth snd_seq snd_timer snd_seq_dev= ice snd battery soundcore ac acpi_cpufreq sg autofs4 i915 drm_kms_helpe= r drm i2c_algo_bit thermal video processor thermal_sys button scsi_dh_r= dac scsi_dh_alua scsi_dh_emc scsi_dh_hp_sw scsi_dh netconsole atl1c [ 25.609239] CPU: 1 PID: 21 Comm: kworker/1:1 Tainted: G D = 3.18.0-master #49 [ 25.609239] Hardware name: TOSHIBA =EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD/=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF= =BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD, BIOS V1.70 09/29/2009 [ 25.609239] task: ffff88013f2e2550 ti: ffff88013f2e4000 task.ti: fff= f88013f2e4000 [ 25.609239] RIP: 0010:[] [] kth= read_data+0x11/0x20 [ 25.609239] RSP: 0018:ffff88013f2e7990 EFLAGS: 00010092 [ 25.609239] RAX: 0000000000000000 RBX: 0000000000000001 RCX: 0000000= 19c731d81 [ 25.609239] RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff880= 13f2e2550 [ 25.609239] RBP: ffff88013f2e79a8 R08: ffff88013f1f8990 R09: 0000000= 0000003ac [ 25.609239] R10: 000000000000bc00 R11: 000000000000b407 R12: ffff880= 13fd12b00 [ 25.609239] R13: 0000000000000001 R14: 0000000000000000 R15: ffff880= 13f2e2550 [ 25.609239] FS: 0000000000000000(0000) GS:ffff88013fd00000(0000) kn= lGS:0000000000000000 [ 25.609239] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 25.609239] CR2: 0000000000000028 CR3: 0000000037075000 CR4: 0000000= 0000407e0 [ 25.609239] Stack: [ 25.609239] ffffffff81063225 ffff88013f2e79a8 ffff88013f2e2550 ffff= 88013f2e7a18 [ 25.609239] ffffffff81591aa9 ffff88013f2e2550 0000000000012b00 ffff= 88013f2e7fd8 [ 25.609239] 0000000000012b00 ffff88013f2e7a08 ffff88013f2e2550 ffff= 88013f2e2550 [ 25.609239] Call Trace: [ 25.609239] [] ? wq_worker_sleeping+0x15/0xa0 [ 25.609239] [] __schedule+0x549/0x810 [ 25.609239] [] schedule+0x29/0x70 [ 25.609239] [] do_exit+0x6a2/0x9e0 [ 25.609239] [] oops_end+0x8e/0xd0 [ 25.609239] [] no_context+0x248/0x298 [ 25.609239] [] __bad_area_nosemaphore+0x6d/0x1c6 [ 25.609239] [] bad_area_nosemaphore+0x13/0x15 [ 25.609239] [] __do_page_fault+0x9c/0x530 [ 25.609239] [] ? soft_cursor+0x1b4/0x250 [ 25.609239] [] do_page_fault+0xc/0x10 [ 25.609239] [] page_fault+0x22/0x30 [ 25.609239] [] ? rtl_watchdog_wq_callback+0xfe/0x= 420 [rtlwifi] [ 25.609239] [] process_one_work+0x14d/0x3d0 [ 25.609239] [] worker_thread+0x121/0x480 [ 25.609239] [] ? process_one_work+0x3d0/0x3d0 [ 25.609239] [] kthread+0xc9/0xe0 [ 25.609239] [] ? __kthread_parkme+0x80/0x80 [ 25.609239] [] ret_from_fork+0x7c/0xb0 [ 25.609239] [] ? __kthread_parkme+0x80/0x80 [ 25.609239] Code: 48 89 e5 5d 48 8b 40 c8 48 c1 e8 02 83 e0 01 c3 66= 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 48 8b 87 60 04 00 00 55 48 8= 9 e5 5d <48> 8b 40 d8 c3 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 5= 5=20 [ 25.609239] RIP [] kthread_data+0x11/0x20 [ 25.609239] RSP [ 25.609239] CR2: ffffffffffffffd8 [ 25.609239] ---[ end trace fc110bb3836ecc52 ]--- [ 25.609239] Fixing recursive fault but reboot is needed! [ 25.609239] Kernel panic - not syncing: Watchdog detected hard LOCKU= P on cpu 1 [ 25.609239] Shutting down cpus with NMI [ 25.609239] Kernel Offset: 0x0 from 0xffffffff81000000 (relocation r= ange: 0xffffffff80000000-0xffffffff9fffffff) [ 25.609239] drm_kms_helper: panic occurred, switching back to text c= onsole [ 25.609239] Rebooting in 60 seconds..