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[Bug 1273392] Re: 0cf3:9271 [MSI FM2-A75IA-E53] ath9k_htc: AR9271 wireless device stops functioning

To: kernel-packages@xxxxxxxxxxxxxxxxxxx
From: Sander Brandenburg <sander.brandenburg@xxxxxxxxx>
Date: Mon, 03 Feb 2014 18:47:55 -0000
Reply-to: Bug 1273392 <1273392@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
I could not get linux-image-3.13.0-5-generic to work on saucy. Xorg
would not register my video card correctly.

I've now patched 3.11.0-15-generic and I've been using the system as
such since Thursday. Yesterday I encountered a hang of the wifi driver
just after joining a torrent, which had a lot of peers/seeds, in deluge.
Unfortunately, I have not found any panic message (and I've confirmed
ath9k_htc.ko  was patched correctly).

I could not recover from this state. suspend did not work and I could
not disconnect using network manager.

Feb  2 20:33:26 sander-laptop kernel: [252566.290931] wlan0: deauthenticating from 94:44:52:24:a3:2c by local choice (reason=3)
Feb  2 20:35:51 sander-laptop kernel: [252710.472578] INFO: task NetworkManager:935 blocked for more than 120 seconds.
Feb  2 20:35:51 sander-laptop kernel: [252710.472585] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb  2 20:35:51 sander-laptop kernel: [252710.472589] NetworkManager  D ffff88043ec94580     0   935      1 0x00000000
Feb  2 20:35:51 sander-laptop kernel: [252710.472595]  ffff880408c79ae0 0000000000000046 ffff880408c79fd8 0000000000014580
Feb  2 20:35:51 sander-laptop kernel: [252710.472601]  ffff880408c79fd8 0000000000014580 ffff880424ed9770 ffffffff81cd4300
Feb  2 20:35:51 sander-laptop kernel: [252710.472606]  ffffffff81cd4304 ffff880424ed9770 00000000ffffffff ffffffff81cd4308
Feb  2 20:35:51 sander-laptop kernel: [252710.472611] Call Trace:
Feb  2 20:35:51 sander-laptop kernel: [252710.472623]  [<ffffffff816ed519>] schedule_preempt_disabled+0x29/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.472629]  [<ffffffff816eb55f>] __mutex_lock_slowpath+0x13f/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.472635]  [<ffffffff815e1c9e>] ? skb_free_head+0x1e/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.472640]  [<ffffffff816ea94f>] mutex_lock+0x1f/0x2f
Feb  2 20:35:51 sander-laptop kernel: [252710.472645]  [<ffffffff8161968f>] netlink_dump+0x1f/0x230
Feb  2 20:35:51 sander-laptop kernel: [252710.472649]  [<ffffffff81619b78>] netlink_recvmsg+0x2d8/0x390
Feb  2 20:35:51 sander-laptop kernel: [252710.472654]  [<ffffffff815d9968>] sock_recvmsg+0xa8/0xe0
Feb  2 20:35:51 sander-laptop kernel: [252710.472661]  [<ffffffff815d810f>] ? move_addr_to_user+0xaf/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.472665]  [<ffffffff815d9c64>] ___sys_recvmsg+0x114/0x2a0
Feb  2 20:35:51 sander-laptop kernel: [252710.472670]  [<ffffffff816ea8eb>] ? mutex_unlock+0x1b/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.472675]  [<ffffffff816f26ac>] ? __do_page_fault+0x1dc/0x530
Feb  2 20:35:51 sander-laptop kernel: [252710.472681]  [<ffffffff8108c87a>] ? lg_local_unlock+0x1a/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.472686]  [<ffffffff811c585e>] ? mntput_no_expire+0x3e/0x150
Feb  2 20:35:51 sander-laptop kernel: [252710.472690]  [<ffffffff811c5996>] ? mntput+0x26/0x40
Feb  2 20:35:51 sander-laptop kernel: [252710.472695]  [<ffffffff811a8c6c>] ? __fput+0x16c/0x230
Feb  2 20:35:51 sander-laptop kernel: [252710.472700]  [<ffffffff815da742>] __sys_recvmsg+0x42/0x80
Feb  2 20:35:51 sander-laptop kernel: [252710.472705]  [<ffffffff815da792>] SyS_recvmsg+0x12/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.472710]  [<ffffffff816f721d>] system_call_fastpath+0x1a/0x1f
Feb  2 20:35:51 sander-laptop kernel: [252710.472717] INFO: task wpa_supplicant:1145 blocked for more than 120 seconds.
Feb  2 20:35:51 sander-laptop kernel: [252710.472719] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb  2 20:35:51 sander-laptop kernel: [252710.472721] wpa_supplicant  D ffff88043ed14580     0  1145      1 0x00000000
Feb  2 20:35:51 sander-laptop kernel: [252710.472726]  ffff880409a9b850 0000000000000046 ffff880409a9bfd8 0000000000014580
Feb  2 20:35:51 sander-laptop kernel: [252710.472731]  ffff880409a9bfd8 0000000000014580 ffff88040d2c0000 ffff88040dbbd330
Feb  2 20:35:51 sander-laptop kernel: [252710.472735]  ffff88040dbbd334 ffff88040d2c0000 00000000ffffffff ffff88040dbbd338
Feb  2 20:35:51 sander-laptop kernel: [252710.472740] Call Trace:
Feb  2 20:35:51 sander-laptop kernel: [252710.472746]  [<ffffffff816ed519>] schedule_preempt_disabled+0x29/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.472751]  [<ffffffff816eb55f>] __mutex_lock_slowpath+0x13f/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.472756]  [<ffffffff816ea94f>] mutex_lock+0x1f/0x2f
Feb  2 20:35:51 sander-laptop kernel: [252710.472797]  [<ffffffffa04b02f0>] ieee80211_stop_poll+0x20/0x50 [mac80211]
Feb  2 20:35:51 sander-laptop kernel: [252710.472823]  [<ffffffffa04b3acb>] ieee80211_set_disassoc+0x4b/0x3d0 [mac80211]
Feb  2 20:35:51 sander-laptop kernel: [252710.472850]  [<ffffffffa04b7d53>] ieee80211_mgd_deauth+0x1d3/0x240 [mac80211]
Feb  2 20:35:51 sander-laptop kernel: [252710.472874]  [<ffffffffa048d2b8>] ieee80211_deauth+0x18/0x20 [mac80211]
Feb  2 20:35:51 sander-laptop kernel: [252710.472905]  [<ffffffffa017788c>] cfg80211_mlme_deauth+0x9c/0x140 [cfg80211]
Feb  2 20:35:51 sander-laptop kernel: [252710.472927]  [<ffffffffa0161a73>] nl80211_deauthenticate+0xe3/0x140 [cfg80211]
Feb  2 20:35:51 sander-laptop kernel: [252710.472937]  [<ffffffff8161c8ec>] genl_family_rcv_msg+0x17c/0x380
Feb  2 20:35:51 sander-laptop kernel: [252710.472944]  [<ffffffff8161caf0>] ? genl_family_rcv_msg+0x380/0x380
Feb  2 20:35:51 sander-laptop kernel: [252710.472948]  [<ffffffff8161cb81>] genl_rcv_msg+0x91/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.472952]  [<ffffffff8161c069>] netlink_rcv_skb+0xa9/0xc0
Feb  2 20:35:51 sander-laptop kernel: [252710.472956]  [<ffffffff8161c568>] genl_rcv+0x28/0x40
Feb  2 20:35:51 sander-laptop kernel: [252710.472959]  [<ffffffff8161b6bd>] netlink_unicast+0xdd/0x190
Feb  2 20:35:51 sander-laptop kernel: [252710.472965]  [<ffffffff8136eaad>] ? memcpy_fromiovec+0x4d/0x90
Feb  2 20:35:51 sander-laptop kernel: [252710.472968]  [<ffffffff8161ba6f>] netlink_sendmsg+0x2ff/0x740
Feb  2 20:35:51 sander-laptop kernel: [252710.472974]  [<ffffffff815d92a9>] sock_sendmsg+0x99/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.472980]  [<ffffffff815d9968>] ? sock_recvmsg+0xa8/0xe0
Feb  2 20:35:51 sander-laptop kernel: [252710.472985]  [<ffffffff811b9c70>] ? poll_select_copy_remaining+0x130/0x130
Feb  2 20:35:51 sander-laptop kernel: [252710.472991]  [<ffffffff815d96e8>] ___sys_sendmsg+0x3b8/0x3d0
Feb  2 20:35:51 sander-laptop kernel: [252710.472996]  [<ffffffff81072152>] ? __set_task_blocked+0x32/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.473001]  [<ffffffff81074889>] ? __set_current_blocked+0x49/0x60
Feb  2 20:35:51 sander-laptop kernel: [252710.473006]  [<ffffffff8101bdce>] ? fpu_finit+0x1e/0x30
Feb  2 20:35:51 sander-laptop kernel: [252710.473010]  [<ffffffff8101bf81>] ? init_fpu+0x51/0xb0
Feb  2 20:35:51 sander-laptop kernel: [252710.473014]  [<ffffffff8107184b>] ? recalc_sigpending+0x1b/0x50
Feb  2 20:35:51 sander-laptop kernel: [252710.473019]  [<ffffffff815da4e2>] __sys_sendmsg+0x42/0x80
Feb  2 20:35:51 sander-laptop kernel: [252710.473024]  [<ffffffff815da532>] SyS_sendmsg+0x12/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.473028]  [<ffffffff816f721d>] system_call_fastpath+0x1a/0x1f
Feb  2 20:35:51 sander-laptop kernel: [252710.473036] INFO: task dnsmasq:1787 blocked for more than 120 seconds.
Feb  2 20:35:51 sander-laptop kernel: [252710.473038] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb  2 20:35:51 sander-laptop kernel: [252710.473041] dnsmasq         D ffff88043ed14580     0  1787      1 0x00000000
Feb  2 20:35:51 sander-laptop kernel: [252710.473045]  ffff880406eb3b90 0000000000000046 ffff880406eb3fd8 0000000000014580
Feb  2 20:35:51 sander-laptop kernel: [252710.473049]  ffff880406eb3fd8 0000000000014580 ffff880421042ee0 ffffffff81cd4300
Feb  2 20:35:51 sander-laptop kernel: [252710.473053]  ffffffff81cd4304 ffff880421042ee0 00000000ffffffff ffffffff81cd4308
Feb  2 20:35:51 sander-laptop kernel: [252710.473058] Call Trace:
Feb  2 20:35:51 sander-laptop kernel: [252710.473064]  [<ffffffff816ed519>] schedule_preempt_disabled+0x29/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.473068]  [<ffffffff816eb55f>] __mutex_lock_slowpath+0x13f/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473073]  [<ffffffff816ea94f>] mutex_lock+0x1f/0x2f
Feb  2 20:35:51 sander-laptop kernel: [252710.473078]  [<ffffffff815fe0a9>] rtnetlink_rcv+0x19/0x30
Feb  2 20:35:51 sander-laptop kernel: [252710.473082]  [<ffffffff8161b6bd>] netlink_unicast+0xdd/0x190
Feb  2 20:35:51 sander-laptop kernel: [252710.473086]  [<ffffffff8136eaad>] ? memcpy_fromiovec+0x4d/0x90
Feb  2 20:35:51 sander-laptop kernel: [252710.473090]  [<ffffffff8161ba6f>] netlink_sendmsg+0x2ff/0x740
Feb  2 20:35:51 sander-laptop kernel: [252710.473095]  [<ffffffff815d92a9>] sock_sendmsg+0x99/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.473099]  [<ffffffff815d810f>] ? move_addr_to_user+0xaf/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.473105]  [<ffffffff815d9821>] SYSC_sendto+0x121/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473111]  [<ffffffff815da742>] ? __sys_recvmsg+0x42/0x80
Feb  2 20:35:51 sander-laptop kernel: [252710.473116]  [<ffffffff816ee5be>] ? _raw_spin_lock+0xe/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.473121]  [<ffffffff815da21e>] SyS_sendto+0xe/0x10
Feb  2 20:35:51 sander-laptop kernel: [252710.473125]  [<ffffffff816f721d>] system_call_fastpath+0x1a/0x1f
Feb  2 20:35:51 sander-laptop kernel: [252710.473137] INFO: task evolution-calen:2295 blocked for more than 120 seconds.
Feb  2 20:35:51 sander-laptop kernel: [252710.473139] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb  2 20:35:51 sander-laptop kernel: [252710.473141] evolution-calen D ffff88043ed94580     0  2295   1506 0x00000000
Feb  2 20:35:51 sander-laptop kernel: [252710.473145]  ffff880404251b90 0000000000000046 ffff880404251fd8 0000000000014580
Feb  2 20:35:51 sander-laptop kernel: [252710.473150]  ffff880404251fd8 0000000000014580 ffff8803ff96ddc0 ffffffff81cd4300
Feb  2 20:35:51 sander-laptop kernel: [252710.473154]  ffffffff81cd4304 ffff8803ff96ddc0 00000000ffffffff ffffffff81cd4308
Feb  2 20:35:51 sander-laptop kernel: [252710.473158] Call Trace:
Feb  2 20:35:51 sander-laptop kernel: [252710.473164]  [<ffffffff816ed519>] schedule_preempt_disabled+0x29/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.473169]  [<ffffffff816eb55f>] __mutex_lock_slowpath+0x13f/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473174]  [<ffffffff816ea94f>] mutex_lock+0x1f/0x2f
Feb  2 20:35:51 sander-laptop kernel: [252710.473178]  [<ffffffff815fe0a9>] rtnetlink_rcv+0x19/0x30
Feb  2 20:35:51 sander-laptop kernel: [252710.473182]  [<ffffffff8161b6bd>] netlink_unicast+0xdd/0x190
Feb  2 20:35:51 sander-laptop kernel: [252710.473186]  [<ffffffff8136eaad>] ? memcpy_fromiovec+0x4d/0x90
Feb  2 20:35:51 sander-laptop kernel: [252710.473190]  [<ffffffff8161ba6f>] netlink_sendmsg+0x2ff/0x740
Feb  2 20:35:51 sander-laptop kernel: [252710.473195]  [<ffffffff815d92a9>] sock_sendmsg+0x99/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.473199]  [<ffffffff811b9c70>] ? poll_select_copy_remaining+0x130/0x130
Feb  2 20:35:51 sander-laptop kernel: [252710.473204]  [<ffffffff81092555>] ? check_preempt_curr+0x75/0xa0
Feb  2 20:35:51 sander-laptop kernel: [252710.473210]  [<ffffffff815d9821>] SYSC_sendto+0x121/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473215]  [<ffffffff81019ea9>] ? read_tsc+0x9/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.473220]  [<ffffffff810b7aa8>] ? ktime_get_ts+0x48/0xe0
Feb  2 20:35:51 sander-laptop kernel: [252710.473225]  [<ffffffff815da21e>] SyS_sendto+0xe/0x10
Feb  2 20:35:51 sander-laptop kernel: [252710.473230]  [<ffffffff816f721d>] system_call_fastpath+0x1a/0x1f
Feb  2 20:35:51 sander-laptop kernel: [252710.473243] INFO: task BrowserBlocking:2447 blocked for more than 120 seconds.
Feb  2 20:35:51 sander-laptop kernel: [252710.473245] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb  2 20:35:51 sander-laptop kernel: [252710.473247] BrowserBlocking D ffff88043ec94580     0  2447   1722 0x00000000
Feb  2 20:35:51 sander-laptop kernel: [252710.473250]  ffff8803f8829b90 0000000000000046 ffff8803f8829fd8 0000000000014580
Feb  2 20:35:51 sander-laptop kernel: [252710.473255]  ffff8803f8829fd8 0000000000014580 ffff8803fb6a4650 ffffffff81cd4300
Feb  2 20:35:51 sander-laptop kernel: [252710.473259]  ffffffff81cd4304 ffff8803fb6a4650 00000000ffffffff ffffffff81cd4308
Feb  2 20:35:51 sander-laptop kernel: [252710.473263] Call Trace:
Feb  2 20:35:51 sander-laptop kernel: [252710.473269]  [<ffffffff816ed519>] schedule_preempt_disabled+0x29/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.473273]  [<ffffffff816eb55f>] __mutex_lock_slowpath+0x13f/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473278]  [<ffffffff816ea94f>] mutex_lock+0x1f/0x2f
Feb  2 20:35:51 sander-laptop kernel: [252710.473283]  [<ffffffff815fe0a9>] rtnetlink_rcv+0x19/0x30
Feb  2 20:35:51 sander-laptop kernel: [252710.473286]  [<ffffffff8161b6bd>] netlink_unicast+0xdd/0x190
Feb  2 20:35:51 sander-laptop kernel: [252710.473291]  [<ffffffff8136eaad>] ? memcpy_fromiovec+0x4d/0x90
Feb  2 20:35:51 sander-laptop kernel: [252710.473294]  [<ffffffff8161ba6f>] netlink_sendmsg+0x2ff/0x740
Feb  2 20:35:51 sander-laptop kernel: [252710.473299]  [<ffffffff816ec160>] ? __schedule+0x3b0/0x7e0
Feb  2 20:35:51 sander-laptop kernel: [252710.473304]  [<ffffffff815d92a9>] sock_sendmsg+0x99/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.473309]  [<ffffffff815dcdab>] ? sk_prot_alloc+0xbb/0x1a0
Feb  2 20:35:51 sander-laptop kernel: [252710.473315]  [<ffffffff815d9821>] SYSC_sendto+0x121/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473320]  [<ffffffff816ee5be>] ? _raw_spin_lock+0xe/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.473325]  [<ffffffff811c3c08>] ? __fd_install+0x48/0x60
Feb  2 20:35:51 sander-laptop kernel: [252710.473330]  [<ffffffff815da21e>] SyS_sendto+0xe/0x10
Feb  2 20:35:51 sander-laptop kernel: [252710.473335]  [<ffffffff816f721d>] system_call_fastpath+0x1a/0x1f
Feb  2 20:35:51 sander-laptop kernel: [252710.473339] INFO: task BrowserBlocking:2450 blocked for more than 120 seconds.
Feb  2 20:35:51 sander-laptop kernel: [252710.473340] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb  2 20:35:51 sander-laptop kernel: [252710.473342] BrowserBlocking D ffff88043ed94580     0  2450   1722 0x00000000
Feb  2 20:35:51 sander-laptop kernel: [252710.473346]  ffff8803f8835b90 0000000000000046 ffff8803f8835fd8 0000000000014580
Feb  2 20:35:51 sander-laptop kernel: [252710.473350]  ffff8803f8835fd8 0000000000014580 ffff8803fb7eddc0 ffffffff81cd4300
Feb  2 20:35:51 sander-laptop kernel: [252710.473354]  ffffffff81cd4304 ffff8803fb7eddc0 00000000ffffffff ffffffff81cd4308
Feb  2 20:35:51 sander-laptop kernel: [252710.473359] Call Trace:
Feb  2 20:35:51 sander-laptop kernel: [252710.473364]  [<ffffffff816ed519>] schedule_preempt_disabled+0x29/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.473369]  [<ffffffff816eb55f>] __mutex_lock_slowpath+0x13f/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473373]  [<ffffffff816ea94f>] mutex_lock+0x1f/0x2f
Feb  2 20:35:51 sander-laptop kernel: [252710.473378]  [<ffffffff815fe0a9>] rtnetlink_rcv+0x19/0x30
Feb  2 20:35:51 sander-laptop kernel: [252710.473382]  [<ffffffff8161b6bd>] netlink_unicast+0xdd/0x190
Feb  2 20:35:51 sander-laptop kernel: [252710.473386]  [<ffffffff8136eaad>] ? memcpy_fromiovec+0x4d/0x90
Feb  2 20:35:51 sander-laptop kernel: [252710.473390]  [<ffffffff8161ba6f>] netlink_sendmsg+0x2ff/0x740
Feb  2 20:35:51 sander-laptop kernel: [252710.473395]  [<ffffffff815d92a9>] sock_sendmsg+0x99/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.473399]  [<ffffffff81092565>] ? check_preempt_curr+0x85/0xa0
Feb  2 20:35:51 sander-laptop kernel: [252710.473406]  [<ffffffff815d9821>] SYSC_sendto+0x121/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473411]  [<ffffffff816ee5be>] ? _raw_spin_lock+0xe/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.473416]  [<ffffffff811c3c08>] ? __fd_install+0x48/0x60
Feb  2 20:35:51 sander-laptop kernel: [252710.473421]  [<ffffffff815da21e>] SyS_sendto+0xe/0x10
Feb  2 20:35:51 sander-laptop kernel: [252710.473425]  [<ffffffff816f721d>] system_call_fastpath+0x1a/0x1f
Feb  2 20:35:51 sander-laptop kernel: [252710.473429] INFO: task BrowserBlocking:2452 blocked for more than 120 seconds.
Feb  2 20:35:51 sander-laptop kernel: [252710.473431] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb  2 20:35:51 sander-laptop kernel: [252710.473433] BrowserBlocking D ffff88043ec14580     0  2452   1722 0x00000000
Feb  2 20:35:51 sander-laptop kernel: [252710.473436]  ffff8803f8837b90 0000000000000046 ffff8803f8837fd8 0000000000014580
Feb  2 20:35:51 sander-laptop kernel: [252710.473441]  ffff8803f8837fd8 0000000000014580 ffff8803fb7aaee0 ffffffff81cd4300
Feb  2 20:35:51 sander-laptop kernel: [252710.473445]  ffffffff81cd4304 ffff8803fb7aaee0 00000000ffffffff ffffffff81cd4308
Feb  2 20:35:51 sander-laptop kernel: [252710.473449] Call Trace:
Feb  2 20:35:51 sander-laptop kernel: [252710.473455]  [<ffffffff816ed519>] schedule_preempt_disabled+0x29/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.473459]  [<ffffffff816eb55f>] __mutex_lock_slowpath+0x13f/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473464]  [<ffffffff816ea94f>] mutex_lock+0x1f/0x2f
Feb  2 20:35:51 sander-laptop kernel: [252710.473469]  [<ffffffff815fe0a9>] rtnetlink_rcv+0x19/0x30
Feb  2 20:35:51 sander-laptop kernel: [252710.473472]  [<ffffffff8161b6bd>] netlink_unicast+0xdd/0x190
Feb  2 20:35:51 sander-laptop kernel: [252710.473477]  [<ffffffff8136eaad>] ? memcpy_fromiovec+0x4d/0x90
Feb  2 20:35:51 sander-laptop kernel: [252710.473480]  [<ffffffff8161ba6f>] netlink_sendmsg+0x2ff/0x740
Feb  2 20:35:51 sander-laptop kernel: [252710.473485]  [<ffffffff816ec160>] ? __schedule+0x3b0/0x7e0
Feb  2 20:35:51 sander-laptop kernel: [252710.473490]  [<ffffffff815d92a9>] sock_sendmsg+0x99/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.473496]  [<ffffffff815d9821>] SYSC_sendto+0x121/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473502]  [<ffffffff816ee5be>] ? _raw_spin_lock+0xe/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.473507]  [<ffffffff811c3c08>] ? __fd_install+0x48/0x60
Feb  2 20:35:51 sander-laptop kernel: [252710.473511]  [<ffffffff815da21e>] SyS_sendto+0xe/0x10
Feb  2 20:35:51 sander-laptop kernel: [252710.473516]  [<ffffffff816f721d>] system_call_fastpath+0x1a/0x1f
Feb  2 20:35:51 sander-laptop kernel: [252710.473523] INFO: task WorkerPool/9893:9893 blocked for more than 120 seconds.
Feb  2 20:35:51 sander-laptop kernel: [252710.473524] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb  2 20:35:51 sander-laptop kernel: [252710.473526] WorkerPool/9893 D ffff88043ec94580     0  9893   1722 0x00000000
Feb  2 20:35:51 sander-laptop kernel: [252710.473530]  ffff88040eefdb90 0000000000000046 ffff88040eefdfd8 0000000000014580
Feb  2 20:35:51 sander-laptop kernel: [252710.473534]  ffff88040eefdfd8 0000000000014580 ffff8803afb19770 ffffffff81cd4300
Feb  2 20:35:51 sander-laptop kernel: [252710.473538]  ffffffff81cd4304 ffff8803afb19770 00000000ffffffff ffffffff81cd4308
Feb  2 20:35:51 sander-laptop kernel: [252710.473543] Call Trace:
Feb  2 20:35:51 sander-laptop kernel: [252710.473548]  [<ffffffff816ed519>] schedule_preempt_disabled+0x29/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.473553]  [<ffffffff816eb55f>] __mutex_lock_slowpath+0x13f/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473557]  [<ffffffff816ea94f>] mutex_lock+0x1f/0x2f
Feb  2 20:35:51 sander-laptop kernel: [252710.473562]  [<ffffffff815fe0a9>] rtnetlink_rcv+0x19/0x30
Feb  2 20:35:51 sander-laptop kernel: [252710.473566]  [<ffffffff8161b6bd>] netlink_unicast+0xdd/0x190
Feb  2 20:35:51 sander-laptop kernel: [252710.473570]  [<ffffffff8136eaad>] ? memcpy_fromiovec+0x4d/0x90
Feb  2 20:35:51 sander-laptop kernel: [252710.473574]  [<ffffffff8161ba6f>] netlink_sendmsg+0x2ff/0x740
Feb  2 20:35:51 sander-laptop kernel: [252710.473579]  [<ffffffff815d92a9>] sock_sendmsg+0x99/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.473584]  [<ffffffff81166c43>] ? handle_pte_fault+0x2a3/0xab0
Feb  2 20:35:51 sander-laptop kernel: [252710.473589]  [<ffffffff81094410>] ? try_to_wake_up+0x200/0x2b0
Feb  2 20:35:51 sander-laptop kernel: [252710.473595]  [<ffffffff815d9821>] SYSC_sendto+0x121/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473601]  [<ffffffff816ee5be>] ? _raw_spin_lock+0xe/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.473605]  [<ffffffff811c3c08>] ? __fd_install+0x48/0x60
Feb  2 20:35:51 sander-laptop kernel: [252710.473610]  [<ffffffff815da21e>] SyS_sendto+0xe/0x10
Feb  2 20:35:51 sander-laptop kernel: [252710.473615]  [<ffffffff816f721d>] system_call_fastpath+0x1a/0x1f
Feb  2 20:35:51 sander-laptop kernel: [252710.473618] INFO: task WorkerPool/9894:9894 blocked for more than 120 seconds.
Feb  2 20:35:51 sander-laptop kernel: [252710.473620] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb  2 20:35:51 sander-laptop kernel: [252710.473622] WorkerPool/9894 D ffff88043ec94580     0  9894   1722 0x00000000
Feb  2 20:35:51 sander-laptop kernel: [252710.473626]  ffff8804067c5b90 0000000000000046 ffff8804067c5fd8 0000000000014580
Feb  2 20:35:51 sander-laptop kernel: [252710.473630]  ffff8804067c5fd8 0000000000014580 ffff88035bef9770 ffffffff81cd4300
Feb  2 20:35:51 sander-laptop kernel: [252710.473634]  ffffffff81cd4304 ffff88035bef9770 00000000ffffffff ffffffff81cd4308
Feb  2 20:35:51 sander-laptop kernel: [252710.473639] Call Trace:
Feb  2 20:35:51 sander-laptop kernel: [252710.473644]  [<ffffffff816ed519>] schedule_preempt_disabled+0x29/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.473649]  [<ffffffff816eb55f>] __mutex_lock_slowpath+0x13f/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473653]  [<ffffffff816ea94f>] mutex_lock+0x1f/0x2f
Feb  2 20:35:51 sander-laptop kernel: [252710.473658]  [<ffffffff815fe0a9>] rtnetlink_rcv+0x19/0x30
Feb  2 20:35:51 sander-laptop kernel: [252710.473661]  [<ffffffff8161b6bd>] netlink_unicast+0xdd/0x190
Feb  2 20:35:51 sander-laptop kernel: [252710.473666]  [<ffffffff8136eaad>] ? memcpy_fromiovec+0x4d/0x90
Feb  2 20:35:51 sander-laptop kernel: [252710.473669]  [<ffffffff8161ba6f>] netlink_sendmsg+0x2ff/0x740
Feb  2 20:35:51 sander-laptop kernel: [252710.473675]  [<ffffffff815d92a9>] sock_sendmsg+0x99/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.473679]  [<ffffffff8145e802>] ? extract_entropy+0xa2/0x140
Feb  2 20:35:51 sander-laptop kernel: [252710.473684]  [<ffffffff816e9f71>] ? nl_portid_hash_rehash+0x130/0x173
Feb  2 20:35:51 sander-laptop kernel: [252710.473690]  [<ffffffff815d9821>] SYSC_sendto+0x121/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473696]  [<ffffffff816ee5be>] ? _raw_spin_lock+0xe/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.473700]  [<ffffffff811c3c08>] ? __fd_install+0x48/0x60
Feb  2 20:35:51 sander-laptop kernel: [252710.473705]  [<ffffffff815da21e>] SyS_sendto+0xe/0x10
Feb  2 20:35:51 sander-laptop kernel: [252710.473710]  [<ffffffff816f721d>] system_call_fastpath+0x1a/0x1f
Feb  2 20:35:51 sander-laptop kernel: [252710.473713] INFO: task WorkerPool/9895:9895 blocked for more than 120 seconds.
Feb  2 20:35:51 sander-laptop kernel: [252710.473715] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
Feb  2 20:35:51 sander-laptop kernel: [252710.473717] WorkerPool/9895 D ffff88043ec94580     0  9895   1722 0x00000000
Feb  2 20:35:51 sander-laptop kernel: [252710.473721]  ffff880424f97b90 0000000000000046 ffff880424f97fd8 0000000000014580
Feb  2 20:35:51 sander-laptop kernel: [252710.473725]  ffff880424f97fd8 0000000000014580 ffff8803afb1c650 ffffffff81cd4300
Feb  2 20:35:51 sander-laptop kernel: [252710.473729]  ffffffff81cd4304 ffff8803afb1c650 00000000ffffffff ffffffff81cd4308
Feb  2 20:35:51 sander-laptop kernel: [252710.473733] Call Trace:
Feb  2 20:35:51 sander-laptop kernel: [252710.473739]  [<ffffffff816ed519>] schedule_preempt_disabled+0x29/0x70
Feb  2 20:35:51 sander-laptop kernel: [252710.473744]  [<ffffffff816eb55f>] __mutex_lock_slowpath+0x13f/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473748]  [<ffffffff816ea94f>] mutex_lock+0x1f/0x2f
Feb  2 20:35:51 sander-laptop kernel: [252710.473753]  [<ffffffff815fe0a9>] rtnetlink_rcv+0x19/0x30
Feb  2 20:35:51 sander-laptop kernel: [252710.473757]  [<ffffffff8161b6bd>] netlink_unicast+0xdd/0x190
Feb  2 20:35:51 sander-laptop kernel: [252710.473761]  [<ffffffff8136eaad>] ? memcpy_fromiovec+0x4d/0x90
Feb  2 20:35:51 sander-laptop kernel: [252710.473765]  [<ffffffff8161ba6f>] netlink_sendmsg+0x2ff/0x740
Feb  2 20:35:51 sander-laptop kernel: [252710.473770]  [<ffffffff8103e127>] ? native_smp_send_reschedule+0x47/0x60
Feb  2 20:35:51 sander-laptop kernel: [252710.473775]  [<ffffffff815d92a9>] sock_sendmsg+0x99/0xd0
Feb  2 20:35:51 sander-laptop kernel: [252710.473779]  [<ffffffff81094410>] ? try_to_wake_up+0x200/0x2b0
Feb  2 20:35:51 sander-laptop kernel: [252710.473786]  [<ffffffff815d9821>] SYSC_sendto+0x121/0x1c0
Feb  2 20:35:51 sander-laptop kernel: [252710.473792]  [<ffffffff816ee5be>] ? _raw_spin_lock+0xe/0x20
Feb  2 20:35:51 sander-laptop kernel: [252710.473796]  [<ffffffff811c3c08>] ? __fd_install+0x48/0x60
Feb  2 20:35:51 sander-laptop kernel: [252710.473801]  [<ffffffff815da21e>] SyS_sendto+0xe/0x10
Feb  2 20:35:51 sander-laptop kernel: [252710.473806]  [<ffffffff816f721d>] system_call_fastpath+0x1a/0x1f

I've been using the 1.4 firmware:
oot@sander-laptop:/lib# dmesg | grep FW
[   13.120106] usb 1-4: ath9k_htc: Transferred FW: htc_9271.fw, size: 51000
[   13.577225] ath9k_htc 1-4:1.0: ath9k_htc: FW Version: 1.4

Should I revert to 1.3.x?

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https://bugs.launchpad.net/bugs/1273392

Title:
  0cf3:9271 [MSI FM2-A75IA-E53] ath9k_htc: AR9271 wireless device stops
  functioning

Status in “linux” package in Ubuntu:
  Incomplete

Bug description:
  A long time after a cold boot, my wireless connection starts dropping,
  will try to reconnect but will not come back again. When I'm in that
  state only a suspend, waiting a while and resuming gets my wireless
  connection back again.  However, after that state it does not take
  long before it starts to drop again.

  WORKAROUND: I could not reproduce this problem again after setting
  nohwcrypt=1 on the ath9k_htc module.

  ProblemType: Bug
  DistroRelease: Ubuntu 13.10
  Package: linux-image-3.11.0-15-generic 3.11.0-15.23
  ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10
  Uname: Linux 3.11.0-15-generic x86_64
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC1:  sander     1881 F.... pulseaudio
   /dev/snd/controlC0:  sander     1881 F.... pulseaudio
  Date: Mon Jan 27 20:27:01 2014
  HibernationDevice: RESUME=UUID=3f3e0b39-93b8-4c28-a8cd-91f2cf4a6890
  InstallationDate: Installed on 2013-09-13 (136 days ago)
  InstallationMedia: Ubuntu 13.10 "Saucy Salamander" - Alpha amd64 (20130912)
  MachineType: MSI MS-7792
  MarkForUpload: True
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.11.0-15-generic root=UUID=add6edeb-2e13-438b-814e-d4995835e178 ro persistent quiet splash vt.handoff=7
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.116
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  WifiSyslog:

  dmi.bios.date: 04/24/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V2.0
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: FM2-A75IA-E53 (MS-7792)
  dmi.board.vendor: MSI
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MSI
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV2.0:bd04/24/2013:svnMSI:pnMS-7792:pvr1.0:rvnMSI:rnFM2-A75IA-E53(MS-7792):rvr1.0:cvnMSI:ct3:cvr1.0:
  dmi.product.name: MS-7792
  dmi.product.version: 1.0
  dmi.sys.vendor: MSI

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References

[Bug 1273392] [NEW] ath9k_htc: AR9271 wireless device stops functioning
From: Sander Brandenburg, 2014-01-27