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  1. Bug #717889
  2. Comment #3

Comment 3 for bug 717889

Revision history for this message
sohel (sohelmk) wrote : Re: (via ttm_bo_ref_bug) BUG: unable to handle kernel paging request at fffffffffffffff8

I also confirm the same bug, though i filed it again from ubuntu to send all info (https://bugs.launchpad.net/ubuntu/+source/linux/+bug/821746)

The system freezes without any of rescue method working, even the /var/crash folder is empty. There is no pattern or way to reproduce the issue. Here are two sets of log from 2 instances in last week. Both show same issue "BUG: unable to handle kernel paging request at .."

Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.328356] usb 3-1: USB disconnect, address 3
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.372911] BUG: unable to handle kernel paging request at 00001000
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.372916] IP: [<00001000>] 0x1000
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.372924] *pdpt = 00000000301df001 *pde = 0000000000000000
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.372928] Oops: 0010 [#2] SMP
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.372931] last sysfs file: /sys/devices/pci0000:00/0000:00:1d.7/usb2/2-1/2-1:1.0/host5/target5:0:0/5:0:0:0/block/sdb/uevent
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.372934] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat nls_utf8 isofs usb_storage binfmt_misc rfcomm sco bridge stp bnep l2cap vmnet ppdev parport_pc vmblock vsock vmci vmmon snd_hda_codec_conexant joydev fbcon tileblit font bitblit softcursor vga16fb vgastate pcmcia snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss arc4 snd_seq_midi snd_rawmidi snd_seq_midi_event iwlagn snd_seq iwlcore thinkpad_acpi snd_timer snd_seq_device yenta_socket rsrc_nonstatic i915 drm_kms_helper tpm_tis mac80211 led_class nf_conntrack_ftp drm tpm nvram tpm_bios btusb bluetooth psmouse serio_raw pcmcia_core cfg80211 nf_conntrack snd intel_agp soundcore agpgart snd_page_alloc i2c_algo_bit video output lp parport ohci1394 ieee1394 ahci e1000e
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.372989]
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.372992] Pid: 3827, comm: umount Tainted: G D (2.6.32-33-generic-pae #71-Ubuntu) 6474BH5
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.372995] EIP: 0060:[<00001000>] EFLAGS: 00010006 CPU: 1
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.372999] EIP is at 0x1000
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373001] EAX: f0d18000 EBX: 00000000 ECX: 00001000 EDX: 00000000
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373003] ESI: 00000000 EDI: 00000001 EBP: ed715da0 ESP: ed715d98
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373005] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373007] Process umount (pid: 3827, ti=ed714000 task=f01e72c0 task.ti=ed714000)
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373009] Stack:
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373010] c033c989 f0d18000 ed715dc8 c034733c 00000000 ed715e3c 7fffffff ec6ae128
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373016] <0> 00000000 f0d18000 00000000 00000010 ed715e0c c0347632 00000010 ed715e00
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373022] <0> 00000282 00000082 00000082 00000000 00000000 00000001 00000282 ed715e40
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373028] Call Trace:
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373035] [<c033c989>] ? elv_may_queue+0x19/0x20
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373039] [<c034733c>] ? get_request+0x2c/0x300
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373042] [<c0347632>] ? get_request_wait+0x22/0x170
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373045] [<c03477e3>] ? blk_get_request+0x63/0x80
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373049] [<c04186b8>] ? scsi_execute+0x28/0x140
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373052] [<c041898a>] ? scsi_execute_req+0x8a/0x140
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373055] [<c0412576>] ? T.828+0x66/0x1a0
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373059] [<c041271e>] ? scsi_set_medium_removal+0x6e/0x90
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373062] [<c0238140>] ? invalidate_bh_lru+0x0/0x40
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373066] [<c043411b>] ? sr_lock_door+0x1b/0x20
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373069] [<c0462821>] ? cdrom_release+0xc1/0x120
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373072] [<c0433287>] ? sr_block_release+0x17/0x30
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373076] [<c023e6bf>] ? __blkdev_put+0x9f/0x150
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373079] [<c0255010>] ? vfs_quota_off+0x0/0x20
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373082] [<c023e77f>] ? blkdev_put+0xf/0x20
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373085] [<c023e804>] ? close_bdev_exclusive+0x24/0x30
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373088] [<c0215f0a>] ? kill_block_super+0x3a/0x50
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373091] [<c0216d14>] ? deactivate_super+0x64/0x90
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373094] [<c022c3af>] ? mntput_no_expire+0x8f/0xe0
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373097] [<c022c9e2>] ? sys_umount+0x62/0xb0
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373100] [<c01096c3>] ? sysenter_do_call+0x12/0x28
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373102] Code: Bad EIP value.
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373104] EIP: [<00001000>] 0x1000 SS:ESP 0068:ed715d98
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373115] CR2: 0000000000001000
Aug 1 21:43:28 IBM-09D31A68228 kernel: [ 1406.373117] ---[ end trace 70cb71003f328998 ]---
Aug 1 21:43:50 IBM-09D31A68228 kernel: [ 1428.060580] usb 3-1: new full speed USB device using uhci_hcd and address 4
Aug 1 21:43:50 IBM-09D31A68228 kernel: [ 1428.220337] usb 3-1: configuration #1 chosen from 1 choice
Aug 1 21:43:50 IBM-09D31A68228 kernel: [ 1428.222455] scsi7 : SCSI emulation for USB Mass Storage devices
Aug 1 21:43:50 IBM-09D31A68228 kernel: [ 1428.222858] usb-storage: device found at 4
Aug 1 21:43:50 IBM-09D31A68228 kernel: [ 1428.222864] usb-storage: waiting for device to settle before scanning
Aug 1 21:43:55 IBM-09D31A68228 kernel: [ 1433.221254] usb-storage: device scan complete
Aug 1 21:43:55 IBM-09D31A68228 kernel: [ 1433.224195] scsi 7:0:0:0: CD-ROM HUAWEI Mass Storage 2.31 PQ: 0 ANSI: 0
Aug 1 21:43:55 IBM-09D31A68228 kernel: [ 1433.254159] sr3: scsi-1 drive
Aug 1 21:43:55 IBM-09D31A68228 kernel: [ 1433.254458] sr 7:0:0:0: Attached scsi CD-ROM sr3
Aug 1 21:43:55 IBM-09D31A68228 kernel: [ 1433.255281] sr 7:0:0:0: Attached scsi generic sg2 type 5
Aug 1 21:44:00 IBM-09D31A68228 kernel: [ 1437.927164] ISO 9660 Extensions: Microsoft Joliet Level 1
Aug 1 21:44:00 IBM-09D31A68228 kernel: [ 1437.932156] ISOFS: changing to secondary root
Aug 1 21:48:20 IBM-09D31A68228 kernel: imklog 4.2.0, log source = /proc/kmsg started.
Aug 1 21:48:20 IBM-09D31A68228 rsyslogd: [origin software="rsyslogd" swVersion="4.2.0" x-pid="970" x-info="http://www.rsyslog.com"] (re)start

Aug 5 19:39:57 IBM-09D31A68228 sudo: pam_sm_authenticate: Called
Aug 5 19:39:57 IBM-09D31A68228 sudo: pam_sm_authenticate: username = [sohel]
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184586] kernel tried to execute NX-protected page - exploit attempt? (uid: 0)
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184590] BUG: unable to handle kernel paging request at f0c3ede0
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184593] IP: [<f0c3ede0>] 0xf0c3ede0
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184605] *pdpt = 0000000000894001 *pde = 8000000030c001e3
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184609] Oops: 0011 [#9] SMP
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184612] last sysfs file: /sys/devices/pci0000:00/0000:00:1a.0/class
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184615] Modules linked in: udf crc_itu_t ipt_MASQUERADE xt_state ipt_REJECT xt_tcpudp iptable_filter nf_nat_h323 nf_conntrack_h323 nf_nat_pptp nf_conntrack_pptp nf_conntrack_proto_gre nf_nat_proto_gre nf_nat_tftp nf_conntrack_tftp nf_nat_sip nf_conntrack_sip nf_nat_irc nf_conntrack_irc nf_nat_ftp iptable_nat nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 ip_tables x_tables ppp_deflate zlib_deflate bsd_comp nls_utf8 isofs ppp_async crc_ccitt option usbserial binfmt_misc rfcomm sco bridge stp bnep l2cap vmnet ppdev parport_pc vmblock vsock vmci vmmon snd_hda_codec_conexant fbcon tileblit font bitblit softcursor vga16fb vgastate joydev pcmcia arc4 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event snd_seq snd_timer snd_seq_device iwlagn i915 yenta_socket rsrc_nonstatic drm_kms_helper thinkpad_acpi nf_conntrack_ftp iwlcore mac80211 led_class snd drm btusb nvram bluetooth nf_conntrack tpm_tis tpm
Aug 5 19:40:05 IBM-09D31A68228 kernel: tpm_bios pcmcia_core intel_agp psmouse cfg80211 i2c_algo_bit serio_raw video output soundcore snd_page_alloc agpgart lp parport usb_storage ohci1394 ieee1394 ahci e1000e
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184691]
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184694] Pid: 12101, comm: umount Tainted: G D (2.6.32-33-generic-pae #71-Ubuntu) 6474BH5
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184696] EIP: 0060:[<f0c3ede0>] EFLAGS: 00010082 CPU: 1
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184703] EIP is at 0xf0c3ede0
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184704] EAX: f6978a50 EBX: 00000000 ECX: f0c3ede0 EDX: 00000000
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184706] ESI: 00000000 EDI: 00000001 EBP: f1e67da0 ESP: f1e67d98
Aug 5 19:40:05 IBM-09D31A68228 kernel: [53216.184708] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068