This looks similar to: https://bugzilla.redhat.com/show_bug.cgi?id=1062985 https://bugzilla.redhat.com/show_bug.cgi?id=1027353 https://retrace.fedoraproject.org/faf/problems/1703969/
** Bug watch added: Red Hat Bugzilla #1062985 https://bugzilla.redhat.com/show_bug.cgi?id=1062985 ** Bug watch added: Red Hat Bugzilla #1027353 https://bugzilla.redhat.com/show_bug.cgi?id=1027353 ** Also affects: linux (Ubuntu Trusty) Importance: Undecided Status: New ** Changed in: linux (Ubuntu) Status: Incomplete => New ** Changed in: linux (Ubuntu Trusty) Importance: Undecided => Medium -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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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