Begin forwarded message: Date: Mon, 30 Aug 2010 10:00:37 +0200 From: Martin Pirker <lkml.collector@xxxxxxxxx> To: LKML <linux-kernel@xxxxxxxxxxxxxxx> Subject: 2.6.35.4 + rfcomm -> segfault Hi... given a Notebook with Bluetooth connection to mobile phone for GPRS Internet: Aug 28 11:43:16 h kernel: [ 1520.976793] general protection fault: 0000 [#1] SMP Aug 28 11:43:16 h kernel: [ 1520.976802] last sysfs file: /sys/devices/LNXSYSTM:00/LNXSYBUS:00/PNP0A08:00/device:09/PNP0C09:00/PNP0C0A:00/power_supply/BAT0/curre nt_now Aug 28 11:43:16 h kernel: [ 1520.976808] CPU 1 Aug 28 11:43:16 h kernel: [ 1520.976811] Modules linked in: ppp_deflate zlib_deflate bsd_comp ppp_async crc_ccitt sco bridge stp bnep rfcomm l2cap joydev arc4 iw lagn i915 iwlcore snd_hda_codec_intelhdmi snd_hda_codec_conexant mac80211 drm_kms_helper snd_hda_intel snd_hda_codec drm btusb snd_hwdep bluetooth cfg80211 snd_pcm p smouse pcspkr snd_timer serio_raw thinkpad_acpi tpm_tis i2c_i801 snd iTCO_wdt led_class tpm tpm_bios nvram e1000e soundcore iTCO_vendor_support snd_page_alloc i2c_al go_bit cfbcopyarea intel_agp cfbimgblt cfbfillrect video Aug 28 11:43:16 h kernel: [ 1520.976897] Aug 28 11:43:16 h kernel: [ 1520.976902] Pid: 4223, comm: wvdial Not tainted 2.6.35.4 #1 5413A13/5413A13 Aug 28 11:43:16 h kernel: [ 1520.976907] RIP: 0010:[<ffffffff8147b0fd>] [<ffffffff8147b0fd>] sock_sendmsg+0xed/0x120 Aug 28 11:43:16 h kernel: [ 1520.976921] RSP: 0018:ffff880130ea78a8 EFLAGS: 00010246 Aug 28 11:43:16 h kernel: [ 1520.976925] RAX: dead4ead00002020 RBX: ffff8801379c9140 RCX: 0000000000000004 Aug 28 11:43:16 h kernel: [ 1520.976929] RDX: ffff880130ea7a48 RSI: ffff8801379c9140 RDI: ffff880130ea78a8 Aug 28 11:43:16 h kernel: [ 1520.976934] RBP: ffff880130ea7a18 R08: 0000000000000004 R09: ffff8801379c9140 Aug 28 11:43:16 h kernel: [ 1520.976938] R10: 0000000000000001 R11: 2222222222222222 R12: ffff880130ea7a48 Aug 28 11:43:16 h kernel: [ 1520.976942] R13: 0000000000000004 R14: ffff880132695000 R15: ffff88012e0bc870 Aug 28 11:43:16 h kernel: [ 1520.976947] FS: 00007ff03bb66720(0000) GS:ffff880002680000(0000) knlGS:0000000000000000 Aug 28 11:43:16 h kernel: [ 1520.976952] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Aug 28 11:43:16 h kernel: [ 1520.976956] CR2: 00007f5edee18000 CR3: 000000012bdfb000 CR4: 00000000000006e0 Aug 28 11:43:16 h kernel: [ 1520.976961] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Aug 28 11:43:16 h kernel: [ 1520.976965] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Aug 28 11:43:16 h kernel: [ 1520.976970] Process wvdial (pid: 4223, threadinfo ffff880130ea6000, task ffff88013060bfc0) Aug 28 11:43:16 h kernel: [ 1520.976974] Stack: Aug 28 11:43:16 h kernel: [ 1520.976976] 0000000000015cc0 0000000000015cc0 0000000000000000 ffffffff00000001 Aug 28 11:43:16 h kernel: [ 1520.976984] <0> 0000000000000000 0000000000000000 0000000000000000 0000000000000000 Aug 28 11:43:16 h kernel: [ 1520.976993] <0> 0000000000000000 ffff88013060bfc0 0000000000000000 0000000000000931 Aug 28 11:43:16 h kernel: [ 1520.977003] Call Trace: Aug 28 11:43:16 h kernel: [ 1520.977013] [<ffffffff8147b171>] kernel_sendmsg+0x41/0x60 Aug 28 11:43:16 h kernel: [ 1520.977022] [<ffffffffa014314b>] rfcomm_send_frame+0x3b/0x40 [rfcomm] Aug 28 11:43:16 h kernel: [ 1520.977030] [<ffffffffa01431b3>] rfcomm_send_disc+0x63/0x70 [rfcomm] Aug 28 11:43:16 h kernel: [ 1520.977038] [<ffffffffa014429c>] __rfcomm_dlc_close+0x25c/0x2b0 [rfcomm] Aug 28 11:43:16 h kernel: [ 1520.977048] [<ffffffff81583d05>] ? mutex_lock_nested+0x35/0x40 Aug 28 11:43:16 h kernel: [ 1520.977055] [<ffffffffa0144555>] rfcomm_dlc_close+0x35/0x50 [rfcomm] Aug 28 11:43:16 h kernel: [ 1520.977064] [<ffffffffa0148a8e>] rfcomm_tty_close+0x4e/0x100 [rfcomm] Aug 28 11:43:16 h kernel: [ 1520.977071] [<ffffffff813530ee>] tty_release+0x17e/0x720 Aug 28 11:43:16 h kernel: [ 1520.977080] [<ffffffff812be59e>] ? do_raw_spin_unlock+0x5e/0xb0 Aug 28 11:43:16 h kernel: [ 1520.977088] [<ffffffff81585aab>] ? _raw_spin_unlock+0x2b/0x40 Aug 28 11:43:16 h kernel: [ 1520.977096] [<ffffffffa0148d83>] ? rfcomm_tty_open+0x243/0x330 [rfcomm] Aug 28 11:43:16 h kernel: [ 1520.977105] [<ffffffff810502c0>] ? default_wake_function+0x0/0x20 Aug 28 11:43:16 h kernel: [ 1520.977111] [<ffffffff813544be>] tty_open+0x52e/0x600 Aug 28 11:43:16 h kernel: [ 1520.977121] [<ffffffff8114fd27>] chrdev_open+0xf7/0x210 Aug 28 11:43:16 h kernel: [ 1520.977128] [<ffffffff81585aab>] ? _raw_spin_unlock+0x2b/0x40 Aug 28 11:43:16 h kernel: [ 1520.977134] [<ffffffff8114fc30>] ? chrdev_open+0x0/0x210 Aug 28 11:43:16 h kernel: [ 1520.977141] [<ffffffff8114a4f4>] __dentry_open+0xe4/0x330 Aug 28 11:43:16 h kernel: [ 1520.977150] [<ffffffff81286708>] ? devcgroup_inode_permission+0x48/0x190 Aug 28 11:43:16 h kernel: [ 1520.977160] [<ffffffff8125c34f>] ? security_inode_permission+0x1f/0x30 Aug 28 11:43:16 h kernel: [ 1520.977167] [<ffffffff8114a854>] nameidata_to_filp+0x54/0x70 Aug 28 11:43:16 h kernel: [ 1520.977173] [<ffffffff81158445>] do_last+0x3e5/0x720 Aug 28 11:43:16 h kernel: [ 1520.977180] [<ffffffff8115a867>] do_filp_open+0x207/0x680 Aug 28 11:43:16 h kernel: [ 1520.977186] [<ffffffff812be59e>] ? do_raw_spin_unlock+0x5e/0xb0 Aug 28 11:43:16 h kernel: [ 1520.977193] [<ffffffff81585aab>] ? _raw_spin_unlock+0x2b/0x40 Aug 28 11:43:16 h kernel: [ 1520.977201] [<ffffffff81165e6a>] ? alloc_fd+0xfa/0x140 Aug 28 11:43:16 h kernel: [ 1520.977207] [<ffffffff8114a2c9>] do_sys_open+0x69/0x140 Aug 28 11:43:16 h kernel: [ 1520.977214] [<ffffffff81585062>] ? trace_hardirqs_on_thunk+0x3a/0x3f Aug 28 11:43:16 h kernel: [ 1520.977220] [<ffffffff8114a3e0>] sys_open+0x20/0x30 Aug 28 11:43:16 h kernel: [ 1520.977229] [<ffffffff8100b072>] system_call_fastpath+0x16/0x1b Aug 28 11:43:16 h kernel: [ 1520.977233] Code: ad 74 ff ff ff 44 89 ea 4c 89 e6 48 89 df e8 7b 0c de ff 85 c0 75 1a 48 8b 43 28 48 8d bd 90 fe ff ff 4c 89 e9 4c 89 e2 48 89 de <ff> 90 88 00 00 00 3d ef fd ff ff 74 16 48 8b 5d e8 4c 8b 65 f0 Aug 28 11:43:16 h kernel: [ 1520.977313] RIP [<ffffffff8147b0fd>] sock_sendmsg+0xed/0x120 Aug 28 11:43:16 h kernel: [ 1520.977319] RSP <ffff880130ea78a8> Aug 28 11:43:16 h kernel: [ 1520.977325] ---[ end trace b38fcf1132041c2a ]--- I remember this happened also on older kernels, but so far it happens so rarely I didn't bother. Maybe the stack trace is of help to you... Martin -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@xxxxxxxxxxxxxxx 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-bluetooth" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
