[009298.685954] general protection fault: 0000 [#1] SMP [009298.686376] Modules linked in: ptrb(OE) t_mux(OE) tty_hif(OE) h_core(OE) os_abstract(OE) snd_usb_audio snd_usbmidi_lib snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd soundcore gpio(OE) uart(OE) deb_spi(OE) w1(OE) gpio_ich coretemp kvm_intel kvm i915 lpc_ich video drm_kms_helper pci(OE) drm i2c_algo_bit shpchp mac_hid lp parport pata_sil680 pata_acpi e1000e ptp pps_core [last unloaded: os_abstract] [009298.688008] CPU: 0 PID: 21693 Comm: python Tainted: G IOE 3.16.0-30-generic #40~14.04.1-Ubuntu [009298.688008] Hardware name: RadiSys Corporation CEGM45 /CEGM45T2-SL9-0 , BIOS 08.00.44 09/14/2011 [009298.688008] task: ffff880076ede5e0 ti: ffff880076fc8000 task.ti: ffff880076fc8000 [009298.688008] RIP: 0010:[] [] __kmalloc+0x95/0x230 [009298.688008] RSP: 0018:ffff880076fcbcb0 EFLAGS: 00010286 [009298.688008] RAX: 0000000000000000 RBX: ffff880004e129c0 RCX: 0000000002bee000 [009298.688008] RDX: 0000000002bedfff RSI: 0000000000000000 RDI: 0000000000000008 [009298.688008] RBP: ffff880076fcbce0 R08: 0000000000016240 R09: ffffffff8124dce4 [009298.688008] R10: ffff88007a801a00 R11: 0000000011111111 R12: 00000000000080d0 [009298.688008] R13: 7b8bdd2b4a3e4480 R14: 0000000000000042 R15: ffff88007a801a00 [009298.688008] FS: 00007ff1ee414740(0000) GS:ffff88007d200000(0000) knlGS:0000000000000000 [009298.688008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [009298.688008] CR2: 00007ff1ea0a3c90 CR3: 00000000781b6000 CR4: 00000000000407f0 [009298.688008] Stack: [009298.688008] ffffffff8124dce4 ffff880004e129c0 ffff880075c42a80 ffff8800420001b8 [009298.688008] 0000000029091136 00000000f08c7f95 ffff880076fcbd18 ffffffff8124dce4 [009298.688008] ffff880004e129c0 ffff880076fcbdc0 ffff8800201548a0 0000000000000000 [009298.688008] Call Trace: [009298.688008] [] ? ext4_htree_store_dirent+0x34/0x120 [009298.688008] [] ext4_htree_store_dirent+0x34/0x120 [009298.688008] [] htree_dirblock_to_tree+0x169/0x190 [009298.688008] [] ext4_htree_fill_tree+0xc6/0x270 [009298.688008] [] ? handle_mm_fault+0x7fc/0x10b0 [009298.688008] [] ? kmem_cache_alloc_trace+0x1c6/0x1f0 [009298.688008] [] ? free_rb_tree_fname+0x1a/0x90 [009298.688008] [] ext4_readdir+0x185/0x910 [009298.688008] [] iterate_dir+0xa3/0x130 [009298.688008] [] ? final_putname+0x22/0x50 [009298.688008] [] SyS_getdents+0x8a/0x110 [009298.688008] [] ? fillonedir+0xd0/0xd0 [009298.688008] [] system_call_fastpath+0x1a/0x1f [009298.688008] Code: cd 00 00 49 8b 50 08 4d 8b 28 49 8b 40 10 4d 85 ed 0f 84 26 01 00 00 48 85 c0 0f 84 1d 01 00 00 49 63 42 20 48 8d 4a 01 4d 8b 02 <49> 8b 5c 05 00 4c 89 e8 65 49 0f c7 08 0f 94 c0 84 c0 74 b8 49 [009298.688008] RIP [] __kmalloc+0x95/0x230 [009298.688008] RSP [009298.724864] ---[ end trace cc195a9ec5b7c913 ]--- [009298.725436] general protection fault: 0000 [#2] SMP [009298.725455] Modules linked in: ptrb(OE) t_mux(OE) tty_hif(OE) h_core(OE) os_abstract(OE) snd_usb_audio snd_usbmidi_lib snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd soundcore gpio(OE) uart(OE) deb_spi(OE) w1(OE) gpio_ich coretemp kvm_intel kvm i915 lpc_ich video drm_kms_helper pci(OE) drm i2c_algo_bit shpchp mac_hid lp parport pata_sil680 pata_acpi e1000e ptp pps_core [last unloaded: os_abstract] [009298.725457] CPU: 1 PID: 26531 Comm: rcv_buffer_stal Tainted: G D IOE 3.16.0-30-generic #40~14.04.1-Ubuntu [009298.725459] Hardware name: RadiSys Corporation CEGM45 /CEGM45T2-SL9-0 , BIOS 08.00.44 09/14/2011 [009298.725460] task: ffff880078074750 ti: ffff880077d44000 task.ti: ffff880077d44000 [009298.725468] RIP: 0010:[] [] stale_timer_poll_thread+0x74/0x1d0 [ptrb] [009298.725469] RSP: 0018:ffff880077d47e80 EFLAGS: 00010202 [009298.725470] RAX: 0000000000000000 RBX: ffff88007849ca00 RCX: 000000000000a70e [009298.725471] RDX: 0000000000000000 RSI: 0000000000000286 RDI: 0000000000000286 [009298.725472] RBP: ffff880077d47ec8 R08: 0000000000000286 R09: 000000000000000f [009298.725473] R10: 00000000002b5d0b R11: 0000000000000000 R12: ffff88007849caf8 [009298.725474] R13: 0000000000000001 R14: ffff88007849caf8 R15: 4b50e63de8c365e6 [009298.725476] FS: 0000000000000000(0000) GS:ffff88007d300000(0000) knlGS:0000000000000000 [009298.725477] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [009298.725478] CR2: 00007f13ac005138 CR3: 0000000078817000 CR4: 00000000000407e0 [009298.725479] Stack: [009298.725481] ffff880078074750 ffff88007849cae8 0000000055ceb94b 00000000000533aa [009298.725483] ffff88007914cd40 ffff88007849ca00 ffffffffc0456040 0000000000000000 [009298.725485] 0000000000000000 ffff880077d47f48 ffffffff810912c2 0000000000000000 [009298.725486] Call Trace: [009298.725490] [] ? ptrb_delete+0x40/0x40 [ptrb] [009298.725496] [] kthread+0xd2/0xf0 [009298.725499] [] ? kthread_create_on_node+0x1c0/0x1c0 [009298.725501] [] ret_from_fork+0x7c/0xb0 [009298.725503] [] ? kthread_create_on_node+0x1c0/0x1c0 [009298.725522] Code: 48 8b 40 08 48 8b 40 10 a8 04 0f 85 3b 01 00 00 bf 01 00 00 00 e8 ed 5c c2 c0 4c 8b bb f8 00 00 00 4d 39 fc 74 c9 4d 85 ff 74 c4 <41> 8b 4f 50 41 bd 01 00 00 00 85 c9 0f 8e c5 00 00 00 66 2e 0f [009298.725525] RIP [] stale_timer_poll_thread+0x74/0x1d0 [ptrb] [009298.725526] RSP [009298.725528] ---[ end trace cc195a9ec5b7c914 ]--- [009298.862657] BUG: unable to handle kernel NULL pointer dereference at (null) [009298.864262] IP: [] ptrb_close+0x71/0x150 [ptrb] [009298.865850] PGD 0 [009298.866588] Oops: 0002 [#3] SMP [009298.866588] Modules linked in: ptrb(OE) t_mux(OE) tty_hif(OE) h_core(OE) os_abstract(OE) snd_usb_audio snd_usbmidi_lib snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd soundcore gpio(OE) uart(OE) deb_spi(OE) w1(OE) gpio_ich coretemp kvm_intel kvm i915 lpc_ich video drm_kms_helper pci(OE) drm i2c_algo_bit shpchp mac_hid lp parport pata_sil680 pata_acpi e1000e ptp pps_core [last unloaded: os_abstract] [009298.866588] CPU: 1 PID: 21693 Comm: python Tainted: G D IOE 3.16.0-30-generic #40~14.04.1-Ubuntu [009298.866588] Hardware name: RadiSys Corporation CEGM45 /CEGM45T2-SL9-0 , BIOS 08.00.44 09/14/2011 [009298.866588] task: ffff880076ede5e0 ti: ffff880076fc8000 task.ti: ffff880076fc8000 [009298.866588] RIP: 0010:[] [] ptrb_close+0x71/0x150 [ptrb] [009298.866588] RSP: 0018:ffff880076fcba38 EFLAGS: 00010293 [009298.866588] RAX: 0000000000000001 RBX: ffff88007849ca00 RCX: 000000018040003b [009298.866588] RDX: 0000000000000000 RSI: ffffea0001e11500 RDI: 0000000040000000 [009298.866588] RBP: ffff880076fcba70 R08: ffff880078454b00 R09: 000000018040003b [009298.866588] R10: ffffea0001e11500 R11: ffffffffc0457cef R12: ffff88007849cb38 [009298.866588] R13: ffff880077ecb900 R14: ffff88007849ca70 R15: ffff8800775ac900 [009298.866588] FS: 00007ff1ee414740(0000) GS:ffff88007d300000(0000) knlGS:0000000000000000 [009298.866588] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [009298.866588] CR2: 0000000000000000 CR3: 00000000792f6000 CR4: 00000000000407e0 [009298.866588] Stack: [009298.866588] 0000000000000000 0000000000000000 0000000000000000 ffff880077ecb900 [009298.866588] 0000000000000008 ffff8800791902f8 ffff880075c7c2a0 ffff880076fcbab8 [009298.866588] ffffffff811d5684 ffff8800791902f8 ffff880077ecb910 ffff880076068800 [009298.866588] Call Trace: [009298.866588] [] __fput+0xe4/0x220 [009298.866588] [] ____fput+0xe/0x10 [009298.866588] [] task_work_run+0xc4/0xe0 [009298.866588] [] do_exit+0x2b8/0xa60 [009298.866588] [] oops_end+0xa9/0x150 [009298.866588] [] die+0x4b/0x70 [009298.866588] [] do_general_protection+0x126/0x1b0 [009298.866588] [] general_protection+0x28/0x30 [009298.866588] [] ? ext4_htree_store_dirent+0x34/0x120 [009298.866588] [] ? __kmalloc+0x95/0x230 [009298.866588] [] ? ext4_htree_store_dirent+0x34/0x120 [009298.866588] [] ext4_htree_store_dirent+0x34/0x120 [009298.866588] [] htree_dirblock_to_tree+0x169/0x190 [009298.866588] [] ext4_htree_fill_tree+0xc6/0x270 [009298.866588] [] ? handle_mm_fault+0x7fc/0x10b0 [009298.866588] [] ? kmem_cache_alloc_trace+0x1c6/0x1f0 [009298.866588] [] ? free_rb_tree_fname+0x1a/0x90 [009298.866588] [] ext4_readdir+0x185/0x910 [009298.866588] [] iterate_dir+0xa3/0x130 [009298.866588] [] ? final_putname+0x22/0x50 [009298.866588] [] SyS_getdents+0x8a/0x110 [009298.866588] [] ? fillonedir+0xd0/0xd0 [009298.866588] [] system_call_fastpath+0x1a/0x1f [009298.866588] Code: ff 01 48 8d 55 d4 4c 89 ee 48 8d 78 28 e8 08 10 00 00 49 8b 74 24 68 4c 89 ef e8 fb 09 00 00 83 f8 0f 77 0c 49 8b 54 24 d8 89 c0 48 0f b3 02 4d 39 6c 24 e8 74 42 0f 1f 00 4c 89 f7 e8 e8 1b [009298.866588] RIP [] ptrb_close+0x71/0x150 [ptrb] [009298.866588] RSP [009298.866588] CR2: 0000000000000000 [009298.866588] ---[ end trace cc195a9ec5b7c915 ]--- [009298.866588] Fixing recursive fault but reboot is needed! [009300.134033] general protection fault: 0000 [#4] SMP [009300.135219] Modules linked in: ptrb(OE) t_mux(OE) tty_hif(OE) h_core(OE) os_abstract(OE) snd_usb_audio snd_usbmidi_lib snd_hwdep snd_pcm snd_seq_midi snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device snd_timer snd soundcore gpio(OE) uart(OE) deb_spi(OE) w1(OE) gpio_ich coretemp kvm_intel kvm i915 lpc_ich video drm_kms_helper pci(OE) drm i2c_algo_bit shpchp mac_hid lp parport pata_sil680 pata_acpi e1000e ptp pps_core [last unloaded: os_abstract] [009300.136008] CPU: 0 PID: 27180 Comm: check-disk Tainted: G D IOE 3.16.0-30-generic #40~14.04.1-Ubuntu [009300.136008] Hardware name: RadiSys Corporation CEGM45 /CEGM45T2-SL9-0 , BIOS 08.00.44 09/14/2011 [009300.136008] task: ffff88007859a8c0 ti: ffff880078c30000 task.ti: ffff880078c30000 [009300.136008] RIP: 0010:[] [] __kmalloc+0x95/0x230 [009300.136008] RSP: 0018:ffff880078c33cb0 EFLAGS: 00010286 [009300.136008] RAX: 0000000000000000 RBX: ffff8800366a14e0 RCX: 0000000002bee000 [009300.136008] RDX: 0000000002bedfff RSI: 0000000000000000 RDI: 0000000000000009 [009300.136008] RBP: ffff880078c33ce0 R08: 0000000000016240 R09: ffffffff8124dce4 [009300.136008] R10: ffff88007a801a00 R11: 0000000018181818 R12: 00000000000080d0 [009300.136008] R13: 7b8bdd2b4a3e4480 R14: 0000000000000049 R15: ffff88007a801a00 [009300.136008] FS: 00007f50c2ad3740(0000) GS:ffff88007d200000(0000) knlGS:0000000000000000 [009300.136008] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [009300.136008] CR2: 000000000273a6c8 CR3: 0000000079102000 CR4: 00000000000407f0 [009300.136008] Stack: [009300.136008] ffffffff8124dce4 ffff8800366a14e0 ffff880076e02780 ffff88006bc77018 [009300.136008] 00000000df8c8534 000000000c3bbb6a ffff880078c33d18 ffffffff8124dce4 [009300.136008] ffff8800366a14e0 ffff880078c33dc0 ffff8800365ab7e0 0000000000000000 [009300.136008] Call Trace: [009300.136008] [] ? ext4_htree_store_dirent+0x34/0x120 [009300.136008] [] ext4_htree_store_dirent+0x34/0x120 [009300.136008] [] htree_dirblock_to_tree+0x169/0x190 [009300.136008] [] ext4_htree_fill_tree+0xc6/0x270 [009300.136008] [] ? handle_mm_fault+0xa43/0x10b0 [009300.136008] [] ? putname+0x29/0x40 [009300.136008] [] ? kmem_cache_alloc_trace+0x1c6/0x1f0 [009300.136008] [] ? free_rb_tree_fname+0x1a/0x90 [009300.136008] [] ext4_readdir+0x185/0x910 [009300.136008] [] iterate_dir+0xa3/0x130 [009300.136008] [] ? final_putname+0x22/0x50 [009300.136008] [] SyS_getdents+0x8a/0x110 [009300.136008] [] ? fillonedir+0xd0/0xd0 [009300.136008] [] ? page_fault+0x28/0x30 [009300.136008] [] system_call_fastpath+0x1a/0x1f [009300.136008] Code: cd 00 00 49 8b 50 08 4d 8b 28 49 8b 40 10 4d 85 ed 0f 84 26 01 00 00 48 85 c0 0f 84 1d 01 00 00 49 63 42 20 48 8d 4a 01 4d 8b 02 <49> 8b 5c 05 00 4c 89 e8 65 49 0f c7 08 0f 94 c0 84 c0 74 b8 49 [009300.136008] RIP [] __kmalloc+0x95/0x230 [009300.136008] RSP [009300.193154] ---[ end trace cc195a9ec5b7c916 ]--