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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is awaiting verification that the kernel in -proposed solves
the problem. Please test the kernel and update this bug with the
results. If the problem is solved, change the tag 'verification-needed-
trusty' to 'verification-done-trusty'.

If verification is not done by 5 working days from today, this fix will
be dropped from the source code, and this bug will be closed.

See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how
to enable and use -proposed. Thank you!


** Tags added: verification-needed-trusty

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https://bugs.launchpad.net/bugs/1402764

Title:
  WARNING: CPU: 1 PID: 4940 at
  /build/buildd/linux-3.13.0/mm/truncate.c:652
  pagecache_isize_extended+0xfd/0x110() in 3.13.0-43-generic

Status in linux package in Ubuntu:
  Invalid
Status in linux-lts-trusty package in Ubuntu:
  Invalid
Status in linux source package in Precise:
  Invalid
Status in linux-lts-trusty source package in Precise:
  Fix Committed
Status in linux source package in Trusty:
  Fix Committed
Status in linux-lts-trusty source package in Trusty:
  Invalid
Status in linux source package in Utopic:
  Invalid
Status in linux-lts-trusty source package in Utopic:
  Invalid
Status in linux source package in Vivid:
  Invalid
Status in linux-lts-trusty source package in Vivid:
  Invalid

Bug description:
  Hi all,

   I have updated my ubuntu 14.04 LTS server this morning. Until then I
  am seeing a lot of errors like:

  [ 4174.782378] WARNING: CPU: 1 PID: 4940 at
  /build/buildd/linux-3.13.0/mm/truncate.c:652
  pagecache_isize_extended+0xfd/0x110()
  [ 4174.782381] Modules linked in: ctr ccm ipt_MASQUERADE iptable_nat
  nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack
  iptable_filter ip_tables x_tables bridge stp llc snd_hda_codec_hdmi
  arc4 nvidia(POX) rtl8187 snd_hda_intel snd_hda_codec snd_hwdep snd_pcm
  snd_page_alloc mac80211 snd_seq_midi snd_seq_midi_event cfg80211
  eeprom_93cx6 snd_rawmidi joydev snd_seq snd_seq_device kvm_amd
  snd_timer kvm drm snd sp5100_tco amd64_edac_mod soundcore edac_core
  edac_mce_amd i2c_piix4 k10temp mac_hid xfs lp parport libcrc32c
  pata_acpi hid_logitech_dj usbhid hid pata_atiixp tg3 ptp pps_core ahci
  libahci
  [ 4174.782433] CPU: 1 PID: 4940 Comm: URL Classifier Tainted: P
  W  OX 3.13.0-43-generic #72-Ubuntu
  [ 4174.782436] Hardware name: HP ProLiant MicroServer, BIOS O41     10/01/2013
  [ 4174.782439]  0000000000000009 ffff88006a90bd70 ffffffff81720bf6
  0000000000000000
  [ 4174.782443]  ffff88006a90bda8 ffffffff810677cd 0000000000001000
  ffff88012e12f598
  [ 4174.782447]  0000000000000000 0000000000000008 00000000000dd9d0
  ffff88006a90bdb8
  [ 4174.782451] Call Trace:
  [ 4174.782459]  [<ffffffff81720bf6>] dump_stack+0x45/0x56
  [ 4174.782464]  [<ffffffff810677cd>] warn_slowpath_common+0x7d/0xa0
  [ 4174.782467]  [<ffffffff810678aa>] warn_slowpath_null+0x1a/0x20
  [ 4174.782472]  [<ffffffff8115dc8d>] pagecache_isize_extended+0xfd/0x110
  [ 4174.782476]  [<ffffffff8115e867>] truncate_setsize+0x27/0x40
  [ 4174.782515]  [<ffffffffa00ce7c2>] xfs_setattr_size+0x182/0x3e0 [xfs]
  [ 4174.782540]  [<ffffffffa00c375c>] xfs_file_fallocate+0x19c/0x260 [xfs]
  [ 4174.782546]  [<ffffffff811c0229>] ? __sb_start_write+0x49/0xe0
  [ 4174.782550]  [<ffffffff811bbf59>] do_fallocate+0xf9/0x190
  [ 4174.782554]  [<ffffffff811bc03c>] SyS_fallocate+0x4c/0x80
  [ 4174.782558]  [<ffffffff817316ad>] system_call_fastpath+0x1a/0x1f
  [ 4174.782561] ---[ end trace aeb446f67bc8e89e ]---

  ===
  break-fix: 90a8020278c1598fafd071736a0846b38510309c f55fefd1a5a339b1bd08c120b93312d6eb64a9fb

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