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[Bug 1323508] [NEW] drivers/net/wireless/iwlwifi/pcie/trans.c:1002 iwl_trans_pcie_grab_nic_access+0xcb/0xe0 [iwlwifi]()

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Public bug reported:

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.

** Affects: linux (Ubuntu)
     Importance: Medium
         Status: New

** Affects: linux (Ubuntu Trusty)
     Importance: Medium
         Status: New


** Tags: bot-stop-nagging trusty

** Attachment added: "dmesg.txt"
   https://bugs.launchpad.net/bugs/1323508/+attachment/4120436/+files/dmesg.txt

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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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