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[Brad Figg <brad.figg@xxxxxxxxxxxxx>]

This bug is missing log files that will aid in diagnosing the problem.
>From a terminal window please run:

apport-collect 1323508

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable
to run this command, please add a comment stating that fact and change
the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

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

** Tags added: trusty

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https://bugs.launchpad.net/bugs/1323508

Title:
  drivers/net/wireless/iwlwifi/pcie/trans.c:1002
  iwl_trans_pcie_grab_nic_access+0xcb/0xe0 [iwlwifi]()

Status in “linux” package in Ubuntu:
  New
Status in “linux” source package in Trusty:
  New

Bug description:
  Occasionally when using wireless on a:
   Manufacturer:      Hewlett-Packard
   Product Name:      HP ENVY 14 SPECTRE Notebook PC
   Product Version:   0786100000204E10000320100

  With:
   ID_MODEL_FROM_DATABASE=Centrino Advanced-N 6230 AGN
   ID_MODEL_ID=0x0090

  The wireless will stop and we'll get the following backtrace:

  [  140.753334] ------------[ cut here ]------------
  [  140.753369] WARNING: CPU: 2 PID: 898 at /build/buildd/linux-3.13.0/drivers/net/wireless/iwlwifi/pcie/trans.c:1002 iwl_trans_pcie_grab_nic_access+0xcb/0xe0 [iwlwifi]()
  [  140.753373] Timeout waiting for hardware access (CSR_GP_CNTRL 0xffffffff)
  [  140.753377] Modules linked in: ctr ccm dm_crypt hp_wmi sparse_keymap intel_rapl x86_pkg_temp_thermal intel_powerclamp coretemp rfcomm bnep kvm snd_hda_codec_hdmi crct10dif_pclmul snd_hda_codec_idt crc32_pclmul snd_hda_intel ghash_clmulni_intel snd_hda_codec snd_usb_audio snd_seq_midi aesni_intel snd_usbmidi_lib aes_x86_64 snd_hwdep snd_seq_midi_event lrw gf128mul snd_pcm glue_helper snd_rawmidi ablk_helper pn533 cryptd uvcvideo arc4 snd_page_alloc videobuf2_vmalloc nfc videobuf2_memops videobuf2_core iwldvm videodev snd_seq mac80211 joydev btusb serio_raw bluetooth rtsx_pci_ms snd_seq_device memstick lpc_ich iwlwifi snd_timer snd cfg80211 mei_me parport_pc mac_hid soundcore ppdev mei intel_smartconnect lp parport hid_generic usbhid hid rtsx_pci_sdmmc i915 i2c_algo_bit drm_kms_helper psmouse ahci libahci drm rtsx_pci r8169 mii wmi video
  [  140.753511] CPU: 2 PID: 898 Comm: NetworkManager Not tainted 3.13.0-27-generic #50-Ubuntu
  [  140.753515] Hardware name: Hewlett-Packard HP ENVY 14 SPECTRE Notebook PC  /17CA, BIOS F.02 12/22/2011
  [  140.753519]  0000000000000009 ffff8800a2adb568 ffffffff817199c4 ffff8800a2adb5b0
  [  140.753528]  ffff8800a2adb5a0 ffffffff810676bd ffff880144414000 ffff880144417258
  [  140.753536]  ffff8800a2adb640 0000000000000000 0000000000001d00 ffff8800a2adb600
  [  140.753545] Call Trace:
  [  140.753560]  [<ffffffff817199c4>] dump_stack+0x45/0x56
  [  140.753570]  [<ffffffff810676bd>] warn_slowpath_common+0x7d/0xa0
  [  140.753577]  [<ffffffff8106772c>] warn_slowpath_fmt+0x4c/0x50
  [  140.753597]  [<ffffffffa02d7eda>] ? iwl_read32+0x1a/0x80 [iwlwifi]
  [  140.753615]  [<ffffffffa02d932b>] iwl_trans_pcie_grab_nic_access+0xcb/0xe0 [iwlwifi]
  [  140.753630]  [<ffffffffa02cc37e>] iwl_write_prph+0x2e/0xa0 [iwlwifi]
  [  140.753647]  [<ffffffffa02d588a>] iwl_pcie_tx_stop+0x4a/0x140 [iwlwifi]
  [  140.753663]  [<ffffffffa02da026>] iwl_trans_pcie_stop_device+0xc6/0x430 [iwlwifi]
  [  140.753679]  [<ffffffffa04672f2>] iwl_down+0x212/0x330 [iwldvm]
  [  140.753695]  [<ffffffffa046bb35>] iwlagn_mac_start+0xe5/0x200 [iwldvm]
  [  140.753729]  [<ffffffffa037b6d1>] ieee80211_do_open+0x2f1/0xdd0 [mac80211]
  [  140.753737]  [<ffffffff81725ebc>] ? notifier_call_chain+0x4c/0x70
  [  140.753767]  [<ffffffffa037c219>] ieee80211_open+0x69/0x70 [mac80211]
  [  140.753777]  [<ffffffff816210df>] __dev_open+0xbf/0x140
  [  140.753785]  [<ffffffff816213ed>] __dev_change_flags+0x9d/0x170
  [  140.753793]  [<ffffffff816214e9>] dev_change_flags+0x29/0x60
  [  140.753801]  [<ffffffff8162eff2>] do_setlink+0x312/0x9e0
  [  140.753812]  [<ffffffff810a2cd0>] ? update_curr+0x80/0x180
  [  140.753822]  [<ffffffff812858ed>] ? jbd2_journal_dirty_metadata+0xcd/0x2d0
  [  140.753830]  [<ffffffff81388142>] ? nla_parse+0x32/0xe0
  [  140.753838]  [<ffffffff81630324>] rtnl_newlink+0x394/0x5d0
  [  140.753848]  [<ffffffff816489a3>] ? netlink_dump+0x123/0x240
  [  140.753857]  [<ffffffff813109bd>] ? apparmor_capable+0x1d/0x130
  [  140.753865]  [<ffffffff8162cd99>] rtnetlink_rcv_msg+0x99/0x260
  [  140.753873]  [<ffffffff8160ecbe>] ? __alloc_skb+0x7e/0x2b0
  [  140.753881]  [<ffffffff8162cd00>] ? rtnetlink_rcv+0x30/0x30
  [  140.753889]  [<ffffffff8164b329>] netlink_rcv_skb+0xa9/0xc0
  [  140.753896]  [<ffffffff8162ccf8>] rtnetlink_rcv+0x28/0x30
  [  140.753903]  [<ffffffff8164a955>] netlink_unicast+0xd5/0x1b0
  [  140.753910]  [<ffffffff8164ad2f>] netlink_sendmsg+0x2ff/0x740
  [  140.753918]  [<ffffffff81647c04>] ? netlink_rcv_wake+0x44/0x60
  [  140.753925]  [<ffffffff81648c62>] ? netlink_recvmsg+0x1a2/0x3a0
  [  140.753934]  [<ffffffff8160581b>] sock_sendmsg+0x8b/0xc0
  [  140.753944]  [<ffffffff8160550e>] ? move_addr_to_kernel.part.16+0x1e/0x60
  [  140.753953]  [<ffffffff816060d1>] ? move_addr_to_kernel+0x21/0x30
  [  140.753961]  [<ffffffff816060a3>] ___sys_sendmsg+0x3c3/0x3d0
  [  140.753971]  [<ffffffff8109a7a2>] ? default_wake_function+0x12/0x20
  [  140.753979]  [<ffffffff811d04b6>] ? pollwake+0x66/0x70
  [  140.753987]  [<ffffffff8109a790>] ? wake_up_state+0x20/0x20
  [  140.753999]  [<ffffffff811112ec>] ? acct_account_cputime+0x1c/0x20
  [  140.754005]  [<ffffffff8109d76b>] ? account_user_time+0x8b/0xa0
  [  140.754014]  [<ffffffff816067a2>] __sys_sendmsg+0x42/0x80
  [  140.754023]  [<ffffffff816067f2>] SyS_sendmsg+0x12/0x20
  [  140.754032]  [<ffffffff8172a5bf>] tracesys+0xe1/0xe6
  [  140.754037] ---[ end trace f70d8f1ce6750f79 ]---

  Attached is the full dmesg.

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