Well, seems like the bug is not reproducing quite often. I get this today: [11614.111551] ------------[ cut here ]------------ [11614.111555] kernel BUG at /build/buildd-linux-2.6_2.6.32-35squeeze2-amd64-OT816k/linux-2.6-2.6.32/debian/build/source_amd64_none/mm/slub.c:2969! [11614.111558] invalid opcode: 0000 [#1] SMP [11614.111561] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq [11614.111564] CPU 1 [11614.111566] Modules linked in: sha1_generic arc4 ecb ppp_mppe ppp_async crc_ccitt ppp_generic slhc acpi_cpufreq cpufreq_stats cpufreq_userspace cpufreq_powersave cpufreq_conservative parport_pc ppdev lp parport sco bridge stp bnep rfcomm l2cap bluetooth rfkill vboxnetadp vboxnetflt vboxdrv fuse loop usbhid hid snd_usb_audio snd_usb_lib uvcvideo snd_hda_codec_atihdmi videodev snd_seq_midi snd_seq_midi_event v4l1_compat snd_rawmidi v4l2_compat_ioctl32 snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq radeon ttm drm_kms_helper drm i2c_algo_bit i2c_i801 i2c_core snd_timer snd_seq_device snd soundcore snd_page_alloc processor evdev pcspkr button asus_atk0110 psmouse serio_raw ext4 mbcache jbd2 crc16 sg sr_mod cdrom sd_mod crc_t10dif thermal ata_generic pata_marvell ata_piix libata thermal_sys scsi_mod uhci_hcd atl1e ehci_hcd usbcore nls_base [last unloaded: scsi_wait_scan] [11614.111630] Pid: 1433, comm: hald-addon-stor Not tainted 2.6.32-5-amd64 #1 P5QL PRO [11614.111633] RIP: 0010:[<ffffffff810e72b3>] [<ffffffff810e72b3>] kfree+0x55/0xcb [11614.111641] RSP: 0018:ffff880128ef9a48 EFLAGS: 00010246 [11614.111644] RAX: 0200000000080000 RBX: ffff88012cfa4870 RCX: 00000000002a0028 [11614.111646] RDX: ffff88012cfa4840 RSI: ffffea000419ea58 RDI: ffffea0003800000 [11614.111649] RBP: ffff880100000000 R08: 0000000000000000 R09: ffffffff81453930 [11614.111652] R10: ffff880005495780 R11: ffffffff810b5adf R12: ffffffffa00ed6db [11614.111654] R13: 0000000000000001 R14: ffff880100000000 R15: ffff88012f6f0020 [11614.111657] FS: 00007fb8dae10700(0000) GS:ffff880005480000(0000) knlGS:0000000000000000 [11614.111660] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [11614.111662] CR2: 00007f83d6c16000 CR3: 0000000128f77000 CR4: 00000000000006e0 [11614.111665] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [11614.111667] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [11614.111670] Process hald-addon-stor (pid: 1433, threadinfo ffff880128ef8000, task ffff88012e5ee2e0) [11614.111672] Stack: [11614.111674] ffff88012cfa4870 ffff88012cfa4840 0000000000000000 ffffffffa00ed6db [11614.111678] <0> 0000000000000296 ffff880128ef9a98 ffff880128ef9ef8 ffffffff81067bdb [11614.111682] <0> ffff880128ef9b88 ffffffff812fb91f ffff8800054901b0 0000000000000000 [11614.111686] Call Trace: [11614.111693] [<ffffffffa00ed6db>] ? sr_media_change+0x253/0x27a [sr_mod] [11614.111698] [<ffffffff81067bdb>] ? hrtimer_cancel+0xc/0x16 [11614.111703] [<ffffffff812fb91f>] ? schedule_hrtimeout_range+0xd5/0x112 [11614.111709] [<ffffffffa00df074>] ? media_changed+0x42/0x74 [cdrom] [11614.111714] [<ffffffff81111b16>] ? check_disk_change+0x22/0x53 [11614.111720] [<ffffffffa00e384c>] ? cdrom_open+0x8d2/0x962 [cdrom] [11614.111724] [<ffffffff810fbdaa>] ? do_sys_poll+0x316/0x391 [11614.111728] [<ffffffff810fca57>] ? __pollwait+0x0/0xd6 [11614.111732] [<ffffffff810fcb2d>] ? pollwake+0x0/0x5b [11614.111735] [<ffffffff810fcb2d>] ? pollwake+0x0/0x5b [11614.111740] [<ffffffff8118f2bf>] ? kobject_get+0x12/0x17 [11614.111744] [<ffffffff811840ac>] ? get_disk+0x95/0xb4 [11614.111749] [<ffffffff812227d4>] ? kobj_lookup+0x169/0x1a1 [11614.111752] [<ffffffff8118f2bf>] ? kobject_get+0x12/0x17 [11614.111757] [<ffffffffa00ed464>] ? sr_block_open+0x86/0x9f [sr_mod] [11614.111762] [<ffffffff81112827>] ? __blkdev_get+0xc6/0x342 [11614.111765] [<ffffffff81112aaa>] ? blkdev_open+0x0/0x96 [11614.111769] [<ffffffff81112b11>] ? blkdev_open+0x67/0x96 [11614.111773] [<ffffffff810ed402>] ? __dentry_open+0x19d/0x2bf [11614.111777] [<ffffffff810f8c63>] ? do_filp_open+0x4e4/0x94b [11614.111782] [<ffffffffa00e0ecd>] ? cdrom_release+0x1ae/0x1fe [cdrom] [11614.111787] [<ffffffff81097c92>] ? rcu_start_gp+0x197/0x1c0 [11614.111792] [<ffffffff8101657d>] ? read_tsc+0xa/0x20 [11614.111796] [<ffffffff81101cb5>] ? alloc_fd+0x67/0x10c [11614.111799] [<ffffffff810ed193>] ? do_sys_open+0x55/0xfc [11614.111803] [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b [11614.111805] Code: 83 c3 08 48 83 3b 00 eb ec 48 83 fd 10 0f 86 89 00 00 00 48 89 ef e8 b9 e8 ff ff 48 89 c7 48 8b 00 84 c0 78 13 66 a9 00 c0 75 04 <0f> 0b eb fe 5b 5d 41 5c e9 ac 56 fd ff 48 8b 4c 24 18 4c 8b 4f [11614.111837] RIP [<ffffffff810e72b3>] kfree+0x55/0xcb [11614.111841] RSP <ffff880128ef9a48> [11614.111844] ---[ end trace e0a06e1b835cfa95 ]--- [11614.362678] stack segment: 0000 [#2] SMP [11614.362683] last sysfs file: /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq [11614.362685] CPU 1 [11614.362687] Modules linked in: sha1_generic arc4 ecb ppp_mppe ppp_async crc_ccitt ppp_generic slhc acpi_cpufreq cpufreq_stats cpufreq_userspace cpufreq_powersave cpufreq_conservative parport_pc ppdev lp parport sco bridge stp bnep rfcomm l2cap bluetooth rfkill vboxnetadp vboxnetflt vboxdrv fuse loop usbhid hid snd_usb_audio snd_usb_lib uvcvideo snd_hda_codec_atihdmi videodev snd_seq_midi snd_seq_midi_event v4l1_compat snd_rawmidi v4l2_compat_ioctl32 snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_seq radeon ttm drm_kms_helper drm i2c_algo_bit i2c_i801 i2c_core snd_timer snd_seq_device snd soundcore snd_page_alloc processor evdev pcspkr button asus_atk0110 psmouse serio_raw ext4 mbcache jbd2 crc16 sg sr_mod cdrom sd_mod crc_t10dif thermal ata_generic pata_marvell ata_piix libata thermal_sys scsi_mod uhci_hcd atl1e ehci_hcd usbcore nls_base [last unloaded: scsi_wait_scan] [11614.362752] Pid: 2475, comm: pulseaudio Tainted: G D 2.6.32-5-amd64 #1 P5QL PRO [11614.362755] RIP: 0010:[<ffffffff810e712e>] [<ffffffff810e712e>] kmem_cache_alloc+0x61/0xf0 [11614.362764] RSP: 0018:ffff88012b7c1b18 EFLAGS: 00010082 [11614.362766] RAX: 0000000000000000 RBX: 0000000000000246 RCX: ffff88000001aa00 [11614.362769] RDX: ffff880005492090 RSI: 0000000000000010 RDI: ffffffff81455f10 [11614.362771] RBP: ffbcbcbcffbcbcbc R08: 0000000000000001 R09: 0000000000000001 [11614.362774] R10: ffff88012bf9df00 R11: ffff88012bf9df00 R12: 0000000000000010 [11614.362776] R13: ffffffff81455f10 R14: ffffffffa000f6a1 R15: 0000000000000008 [11614.362779] FS: 00007f6a1da92700(0000) GS:ffff880005480000(0000) knlGS:0000000000000000 [11614.362782] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [11614.362784] CR2: 00007fbd3da1bd60 CR3: 000000012dd5c000 CR4: 00000000000006e0 [11614.362787] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [11614.362789] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [11614.362792] Process pulseaudio (pid: 2475, threadinfo ffff88012b7c0000, task ffff88012d55d4c0) [11614.362794] Stack: [11614.362796] 00000010000280d2 ffff88012ebda400 ffff88012ced7800 0000000000000001 [11614.362800] <0> 0000000000000000 0000000000000001 0000000000000001 ffffffffa000f6a1 [11614.362803] <0> 000080d000000010 800002000b7c0001 ffff88012ced7800 00000000000080d2 [11614.362808] Call Trace: [11614.362818] [<ffffffffa000f6a1>] ? usb_control_msg+0x3d/0x135 [usbcore] [11614.362826] [<ffffffffa000f9ec>] ? usb_set_interface+0xcd/0x19a [usbcore] [11614.362832] [<ffffffffa0324e0f>] ? snd_usb_hw_params+0x29e/0x986 [snd_usb_audio] [11614.362838] [<ffffffffa02bff0d>] ? snd_pcm_hw_params+0xe9/0x317 [snd_pcm] [11614.362844] [<ffffffffa02c0614>] ? snd_pcm_common_ioctl1+0x24f/0xcff [snd_pcm] [11614.362850] [<ffffffffa02bf54a>] ? snd_pcm_open+0x21f/0x250 [snd_pcm] [11614.362855] [<ffffffff8104a449>] ? default_wake_function+0x0/0x9 [11614.362862] [<ffffffffa00ab68d>] ? snd_open+0x12d/0x138 [snd] [11614.362866] [<ffffffff810f1655>] ? chrdev_open+0x11f/0x13e [11614.362869] [<ffffffff810f603b>] ? acl_permission_check+0x4f/0x7e [11614.362873] [<ffffffff810e782d>] ? __kmalloc_track_caller+0x12a/0x13c [11614.362878] [<ffffffff811160b0>] ? fsnotify_create_event+0xb1/0x174 [11614.362882] [<ffffffff81190c79>] ? prio_tree_insert+0x185/0x20d [11614.362887] [<ffffffff812fb826>] ? mutex_lock+0xd/0x31 [11614.362892] [<ffffffffa02c151f>] ? snd_pcm_playback_ioctl1+0x204/0x221 [snd_pcm] [11614.362898] [<ffffffffa02c1e7a>] ? snd_pcm_playback_ioctl+0x2e/0x36 [snd_pcm] [11614.362902] [<ffffffff810fa94e>] ? vfs_ioctl+0x21/0x6c [11614.362906] [<ffffffff810fae9c>] ? do_vfs_ioctl+0x48d/0x4cb [11614.362909] [<ffffffff810faf2b>] ? sys_ioctl+0x51/0x70 [11614.362913] [<ffffffff81010b42>] ? system_call_fastpath+0x16/0x1b [11614.362915] Code: 48 89 c3 fa 66 0f 1f 44 00 00 65 8b 04 25 a8 e3 00 00 48 98 49 8b 94 c5 f0 02 00 00 48 8b 2a 44 8b 7a 18 48 85 ed 74 0d 8b 42 14 <48> 8b 44 c5 00 48 89 02 eb 17 49 89 d0 4c 89 f1 83 ca ff 44 89 [11614.362945] RIP [<ffffffff810e712e>] kmem_cache_alloc+0x61/0xf0 [11614.362949] RSP <ffff88012b7c1b18> [11614.362952] ---[ end trace e0a06e1b835cfa96 ]--- [11614.362956] note: pulseaudio[2475] exited with preempt_count 1
-- with best regards, Volodymyr 2011/9/30 Ben Hutchings <b...@decadent.org.uk> > On Fri, 2011-09-30 at 10:01 +0200, Volodymyr Shcherbyna wrote: > > It seems like it just happens once. > > > > I will try to repro it with vbox. Will make sure that I have a solid > > test-case scenario and then will test it without vbox. > > > > Speaking of testing modules. Is there any thing in Linux as Driver > > Verifier which is used in Windows? It allows to check for pool > > corruptions, page faults when called at high IRQLs, etc. I assume > > there are none for Linux. > [...] > > There are build-time options to enable such checking in the kernel. See > the options under "Kernel debugging" (CONFIG_DEBUG_KERNEL). > > Ben. > > -- > Ben Hutchings > Everything should be made as simple as possible, but not simpler. > - Albert Einstein >
