<4>[ 192.175816] show_signal_msg: 18 callbacks suppressed <6>[ 192.175820] zsync[2612]: segfault at 20 ip 00000000004091e4 sp 00007fffc57681e0 error 4 in zsync[400000+15000] <0>[ 532.360692] general protection fault: 0000 [#1] SMP <0>[ 532.360697] last sysfs file: /sys/devices/pci0000:00/0000:00:1f.1/host0/target0:0:1/0:0:1:0/block/sr1/uevent <4>[ 532.360699] CPU 0 <4>[ 532.360700] Modules linked in: binfmt_misc kvm_intel kvm snd_hda_codec_realtek snd_hda_intel nouveau snd_hda_codec ttm snd_hwdep snd_pcm drm_kms_helper snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device snd drm soundcore led_class snd_page_alloc smsc47b397 i2c_algo_bit psmouse serio_raw coretemp i82975x_edac edac_core ppdev parport_pc hp_wmi lp parport usbhid hid floppy ahci e1000e tg3 libahci <4>[ 532.360726] <4>[ 532.360730] Pid: 366, comm: flush-8:16 Tainted: P 2.6.35-22-generic #34-Ubuntu 0A68h/HP xw4400 Workstation <4>[ 532.360732] RIP: 0010:[] [] walk_page_buffers+0x6b/0xc0 <4>[ 532.360740] RSP: 0018:ffff8801261db7d0 EFLAGS: 00010287 <4>[ 532.360741] RAX: 0000000000000000 RBX: ffff880046f76360 RCX: 0000000000000001 <4>[ 532.360743] RDX: 0000000000000000 RSI: 12d3d6832e7d17b5 RDI: 0000000000000001 <4>[ 532.360745] RBP: ffff8801261db830 R08: 0000000000000001 R09: ffffffff811ea860 <4>[ 532.360747] R10: d140000000000000 R11: 0000000000000000 R12: 0000000000001000 <4>[ 532.360749] R13: 0000000000000000 R14: 0000000000000000 R15: 12d3d6832e7d17b5 <4>[ 532.360752] FS: 0000000000000000(0000) GS:ffff880001e00000(0000) knlGS:0000000000000000 <4>[ 532.360754] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b <4>[ 532.360756] CR2: 00000000f7759000 CR3: 00000000c7f1a000 CR4: 00000000000006f0 <4>[ 532.360758] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 <4>[ 532.360760] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 <4>[ 532.360762] Process flush-8:16 (pid: 366, threadinfo ffff8801261da000, task ffff8801283696e0) <0>[ 532.360764] Stack: <4>[ 532.360765] ffff8801261db820 ffffffff8117ecb0 0000000000001000 ffffffff811ea860 <4>[ 532.360768] <0> 00000000cf1bd138 0000000000000000 ffff8800cf1bd020 ffffea0003c266a0 <4>[ 532.360772] <0> ffff8800cf1bd020 ffff880046f76360 0000000000001000 0000000000000006 <0>[ 532.360776] Call Trace: <4>[ 532.360781] [] ? block_write_full_page_endio+0xe0/0x120 <4>[ 532.360784] [] ? ext4_bh_delay_or_unwritten+0x0/0x30 <4>[ 532.360787] [] ext4_writepage+0x7c/0x380 <4>[ 532.360790] [] mpage_da_submit_io+0x14c/0x1c0 <4>[ 532.360793] [] mpage_add_bh_to_extent+0xc0/0x100 <4>[ 532.360796] [] __mpage_da_writepage+0x121/0x180 <4>[ 532.360798] [] write_cache_pages_da+0x196/0x290 <4>[ 532.360801] [] ext4_da_writepages+0x2be/0x640 <4>[ 532.360805] [] do_writepages+0x21/0x40 <4>[ 532.360809] [] writeback_single_inode+0xe6/0x3f0 <4>[ 532.360812] [] writeback_sb_inodes+0x195/0x280 <4>[ 532.360814] [] writeback_inodes_wb+0xa0/0x1b0 <4>[ 532.360817] [] wb_writeback+0x24b/0x2b0 <4>[ 532.360821] [] ? lock_timer_base+0x3c/0x70 <4>[ 532.360824] [] ? del_timer_sync+0x22/0x30 <4>[ 532.360827] [] wb_do_writeback+0xa9/0x190 <4>[ 532.360829] [] ? process_timeout+0x0/0x10 <4>[ 532.360832] [] bdi_writeback_task+0x53/0x160 <4>[ 532.360835] [] ? bit_waitqueue+0x17/0xd0 <4>[ 532.360839] [] bdi_start_fn+0x86/0x100 <4>[ 532.360841] [] ? bdi_start_fn+0x0/0x100 <4>[ 532.360843] [] kthread+0x96/0xa0 <4>[ 532.360847] [] kernel_thread_helper+0x4/0x10 <4>[ 532.360849] [] ? kthread+0x0/0xa0 <4>[ 532.360852] [] ? kernel_thread_helper+0x0/0x10 <0>[ 532.360853] Code: 75 08 41 c7 45 00 01 00 00 00 45 85 f6 89 c8 4c 89 fe 41 0f 94 c0 4c 39 fb 40 0f 95 c7 44 89 c1 41 01 d6 40 08 f9 74 38 44 39 e0 <4c> 8b 7e 08 8d 0c 10 73 c4 44 3b 75 c4 76 be 89 55 b0 89 4d a8 <1>[ 532.360881] RIP [] walk_page_buffers+0x6b/0xc0 <4>[ 532.360884] RSP <4>[ 532.360887] ---[ end trace afb902b00e8cb4a5 ]---