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[Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>]

** Also affects: linux (Ubuntu Precise)
   Importance: Undecided
       Status: New

** Tags added: precise

** Changed in: linux (Ubuntu)
       Status: New => Confirmed

** Changed in: linux (Ubuntu Precise)
       Status: New => Confirmed

** Changed in: linux (Ubuntu)
   Importance: Undecided => Medium

** Changed in: linux (Ubuntu Precise)
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1257256

Title:
  Chromium browser triggers PAE kernel bug: "Corrupted page table at
  address"

Status in The Linux Kernel:
  Confirmed
Status in “linux” package in Ubuntu:
  Confirmed
Status in “linux” source package in Precise:
  Confirmed

Bug description:
  This bug has been reported upstream and addressed in Debian.

  I found it while running the upstream kernel 3.6.0-030600rc6-generic,
  but since it was fixed in 3.9, it almost certainly applies to the
  stock Precise kernel as well. It's rare and not easy to reproduce, and
  I can't use my system properly with the stock Precise kernel (USB
  fails after suspend) so I can't really test that for you.

  After running Chromium for some time, it may be killed by the kernel,
  with the following error in the kernel logs/dmesg:

  [656997.934699] chromium-browse: Corrupted page table at address 45c72000
  [656997.937966] *pdpt = 0000000000000000 *pde = f0001189f0001189 
  [656997.939741] Bad pagetable: 000f [#1] SMP 
  [656997.941504] Modules linked in: ufs qnx4 hfsplus hfs minix ntfs msdos jfs xfs reiserfs ext2 ppp_deflate bsd_comp ppp_async crc_ccitt option uas usb_storage cp210x snd_seq_dummy pci_stub vboxpci(O) vboxnetadp(O) vboxnetflt(O) vboxdrv(O) xfrm_user xfrm4_tunnel tunnel4 ipcomp xfrm_ipcomp esp4 ah4 ip6table_filter ip6_tables ebtable_nat ebtables xt_state ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp iptable_filter ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 ip_tables x_tables bridge stp llc qmi_wwan usbnet cdc_wdm ib_iser rdma_cm ib_cm iw_cm ib_sa ib_mad ib_core ib_addr iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi deflate ctr twofish_generic twofish_i586 twofish_common camellia_generic dm_crypt serpent_sse2_i586 glue_helper lrw serpent_generic xts gf128mul blowfish_generic blowfish_common cast5 des_generic xcbc rmd160 sha512_generic crypto_null af_key xfrm_algo bnep rfcomm parport_pc ppdev lp parport snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_intel snd_hda_codec arc4 iwldvm snd_hwdep mac80211 snd_pcm thinkpad_acpi snd_seq_midi kvm_intel snd_rawmidi kvm snd_seq_midi_event iwlwifi snd_seq qcserial snd_timer usb_wwan btusb usbserial dm_multipath snd_seq_device snd lpc_ich soundcore scsi_dh microcode snd_page_alloc mei bluetooth mac_hid cfg80211 psmouse serio_raw joydev intel_ips tpm_tis nvram nfsd nfs_acl auth_rpcgss nfs coretemp fscache lockd hdaps(O) thinkpad_ec(O) sunrpc binfmt_misc raid10 raid456 async_raid6_recov async_pq raid6_pq async_xor xor async_memcpy async_tx raid1 raid0 multipath linear dm_mirror dm_region_hash dm_log btrfs zlib_deflate libcrc32c aesni_intel ablk_helper cryptd aes_i586 i915 e1000e drm_kms_helper drm i2c_algo_bit video wmi
  [656997.964607] Pid: 7287, comm: chromium-browse Tainted: G        W  O 3.6.0-030600rc6-generic #201209161835 LENOVO 3323DAG/3323DAG
  [656997.964610] EIP: 0073:[<b3602b23>] EFLAGS: 00210283 CPU: 1
  [656997.964628] EIP is at 0xb3602b23
  [656997.964630] EAX: 45c72000 EBX: b37a8d18 ECX: 00000024 EDX: 45c72fe0
  [656997.964631] ESI: bfca81fc EDI: 00000000 EBP: bfca826c ESP: bfca81b0
  [656997.964633]  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 007b
  [656997.964636] Process chromium-browse (pid: 7287, ti=e1564000 task=e97ff1a0 task.ti=e1564000)
  [656997.964637] 
  [656997.964638] EIP: [<b3602b23>] 0xb3602b23 SS:ESP 007b:bfca81b0
  [656997.987472] ---[ end trace 0ab1e74c159721af ]---

  Description:	Ubuntu 12.04.3 LTS
  Release:	12.04

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