Summary:	ASTERISK-16706: chan_skype generate kernel error when starts asterisk
Reporter:	Paulo Arriba (arriba)	Labels:
Date Opened:	2010-09-21 07:45:11	Date Closed:	2011-06-07 14:04:39
Priority:	Minor	Regression?	No
Status:	Closed/Complete	Components:	Channels/NewFeature
Versions:		Frequency of Occurrence
Related Issues:
Environment:		Attachments:
Description:	after asterisk load chan_skype.so generate this message Message from syslogd@softfax at Sep 21 07:46:01 ... kernel:[ 2160.808534] Oops: 0000 [ASTERISK-3] PREEMPT SMP Message from syslogd@softfax at Sep 21 07:46:01 ... kernel:[ 2160.808538] last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map Message from syslogd@softfax at Sep 21 07:46:01 ... kernel:[ 2160.808647] Stack: Message from syslogd@softfax at Sep 21 07:46:01 ... kernel:[ 2160.808666] Call Trace: Message from syslogd@softfax at Sep 21 07:46:01 ... kernel:[ 2160.808708] Code: b6 fe ff ff 0f 1f 00 4c 89 fe 65 48 8b 3c 25 00 b0 00 00 e8 cf f5 ff ff 85 c0 89 85 6c ff ff ff 0f 85 25 fe ff ff e9 ee fe ff ff <41> f6 45 68 08 0f 84 ff fd ff ff 90 e9 ef fd ff ff 31 f6 4c 89 Message from syslogd@softfax at Sep 21 07:46:01 ... kernel:[ 2160.808750] CR2: 0000000000000068 Message from syslogd@softfax at Sep 21 07:46:02 ... kernel:[ 2161.808653] Oops: 0000 [ASTERISK-4] PREEMPT SMP Message from syslogd@softfax at Sep 21 07:46:02 ... kernel:[ 2161.808659] last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map Message from syslogd@softfax at Sep 21 07:46:02 ... kernel:[ 2161.808817] Stack: Message from syslogd@softfax at Sep 21 07:46:02 ... kernel:[ 2161.808846] Call Trace: Message from syslogd@softfax at Sep 21 07:46:02 ... kernel:[ 2161.808899] Code: b6 fe ff ff 0f 1f 00 4c 89 fe 65 48 8b 3c 25 00 b0 00 00 e8 cf f5 ff ff 85 c0 89 85 6c ff ff ff 0f 85 25 fe ff ff e9 ee fe ff ff <41> f6 45 68 08 0f 84 ff fd ff ff 90 e9 ef fd ff ff 31 f6 4c 89 Message from syslogd@softfax at Sep 21 07:46:02 ... kernel:[ 2161.808962] CR2: 0000000000000068 in /var/log/messages show this detailed message Sep 21 07:18:17 softfax kernel: [  497.172105] BUG: unable to handle kernel NULL pointer dereference at 0000000000000068 Sep 21 07:18:17 softfax kernel: [  497.172115] IP: [<ffffffff812446a4>] apparmor_bprm_set_creds+0x354/0x440 Sep 21 07:18:17 softfax kernel: [  497.172125] PGD 12146b067 PUD 12147e067 PMD 0 Sep 21 07:18:17 softfax kernel: [  497.172130] Oops: 0000 [#3] PREEMPT SMP Sep 21 07:18:17 softfax kernel: [  497.172135] last sysfs file: /sys/devices/system/cpu/cpu1/cache/index2/shared_cpu_map Sep 21 07:18:17 softfax kernel: [  497.172142] CPU 0 Sep 21 07:18:17 softfax kernel: [  497.172145] Modules linked in: edd dahdi_dummy dahdi crc_ccitt cpufreq_conservative cpufreq_userspace cpufreq_powersave acpi_cpufreq dgvfifo vlibd fuse loop dm_mod atl1e sr_mod serio_raw pcspkr cdrom i2c_i801 sg intel_agp button asus_atk0110 iTCO_wdt iTCO_vendor_support ext4 jbd2 crc16 raid456 raid6_pq async_xor async_memcpy async_tx xor raid1 raid0 fan processor thermal thermal_sys Sep 21 07:18:17 softfax kernel: [  497.172186] Pid: 3374, comm: asterisk Tainted: G      D    2.6.31.5-0.1-desktop #1 System Product Name Sep 21 07:18:17 softfax kernel: [  497.172192] RIP: 0010:[<ffffffff812446a4>]  [<ffffffff812446a4>] apparmor_bprm_set_creds+0x354/0x440 Sep 21 07:18:17 softfax kernel: [  497.172200] RSP: 0018:ffff880124dcfda8  EFLAGS: 00010246 Sep 21 07:18:17 softfax kernel: [  497.172204] RAX: 00000000fffffffe RBX: ffff88012caae480 RCX: ffff880124dcfdd8 Sep 21 07:18:17 softfax kernel: [  497.172208] RDX: 0000000000000000 RSI: ffffffff818b3740 RDI: 0000000000000004 Sep 21 07:18:17 softfax kernel: [  497.172212] RBP: ffff880124dcfe58 R08: ffffffff816f58d1 R09: 00000000000000e4 Sep 21 07:18:17 softfax kernel: [  497.172217] R10: ffff88012a9a3030 R11: 0000000000000000 R12: ffff880127d2a900 Sep 21 07:18:17 softfax kernel: [  497.172221] R13: 0000000000000000 R14: ffff880124dcfdb8 R15: ffff880124dcfe08 Sep 21 07:18:17 softfax kernel: [  497.172226] FS:  00007ff3d04816f0(0000) GS:ffff88000584a000(0000) knlGS:0000000000000000 Sep 21 07:18:17 softfax kernel: [  497.172231] CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b Sep 21 07:18:17 softfax kernel: [  497.172235] CR2: 0000000000000068 CR3: 000000012146a000 CR4: 00000000000406f0 Sep 21 07:18:17 softfax kernel: [  497.172239] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Sep 21 07:18:17 softfax kernel: [  497.172244] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Sep 21 07:18:17 softfax kernel: [  497.172248] Process asterisk (pid: 3374, threadinfo ffff880124dce000, task ffff8801214b6340) Sep 21 07:18:17 softfax kernel: [  497.172253] Stack: Sep 21 07:18:17 softfax kernel: [  497.172255]  0000000000000000 ffff88012fc80940 0000000000000000 fffffffe000000d0 Sep 21 07:18:17 softfax kernel: [  497.172261] <0> ffffffff816f57aa 0000000000000000 ffff88012a9a3d64 0000000000000000 Sep 21 07:18:17 softfax kernel: [  497.172267] <0> 0000000000000000 0000000000000000 0000000100000000 ffff880124dcfe08 Sep 21 07:18:17 softfax kernel: [  497.172275] Call Trace: Sep 21 07:18:17 softfax kernel: [  497.172286]  [<ffffffff8121aa21>] security_bprm_set_creds+0x21/0x40 Sep 21 07:18:17 softfax kernel: [  497.172294]  [<ffffffff81152840>] prepare_binprm+0x90/0x130 Sep 21 07:18:17 softfax kernel: [  497.172301]  [<ffffffff8115487a>] do_execve+0x2ba/0x480 Sep 21 07:18:17 softfax kernel: [  497.172308]  [<ffffffff8100a1f1>] sys_execve+0x51/0x90 Sep 21 07:18:17 softfax kernel: [  497.172315]  [<ffffffff8100cb5a>] stub_execve+0x6a/0xc0 Sep 21 07:18:17 softfax kernel: [  497.172320] Code: b6 fe ff ff 0f 1f 00 4c 89 fe 65 48 8b 3c 25 00 b0 00 00 e8 cf f5 ff ff 85 c0 89 85 6c ff ff ff 0f 85 25 fe ff ff e9 ee fe ff ff <41> f6 45 68 08 0f 84 ff fd ff ff 90 e9 ef fd ff ff 31 f6 4c 89 Sep 21 07:18:17 softfax kernel: [  497.172358] RIP  [<ffffffff812446a4>] apparmor_bprm_set_creds+0x354/0x440 Sep 21 07:18:18 softfax kernel: [  498.170297]  RSP <ffff880120d79da8> Sep 21 07:18:18 softfax kernel: [  498.170300] CR2: 0000000000000068 Sep 21 07:18:18 softfax kernel: [  498.173823] ---[ end trace b33f086d1fccd282 ]--- ****** ADDITIONAL INFORMATION ****** I installed OpenSuse 11.2 64bits (kernel 2.6.31.5-0.1) and skypeforasterisk-1.6.0_1.1.0.1-x86_64
Comments:	By: David Woolley (davidw) 2010-09-21 08:30:14 This is a linux kernel bug, not an Asterisk bug.  Actually, it looks like it is a third party kernel driver, part of AppArmor. As a general principle any Oops that is generated by running non-driver code is a kernel bug. By: Leif Madsen (lmadsen) 2010-09-21 14:01:14 In addition, this is a commercial channel driver and should be reported to Digium directly, and not via the open source Asterisk issue tracker.