Аналогичная ситуация.
02:00.0 Network controller: Qualcomm Atheros AR9285 Wireless Network Adapter (PCI-Express) (rev 01)
Подключен к беспроводной сети Mikrotik RB951-2n, у которого похоже слабая антенна, но вряд ли проблема в этом, т.к. для стабильной работы сети нетбук даже не передвигался и находился в соседнем помещении за обычной стеной.
Проблема проявляется по-разному, например спустя 10 минут после загрузки системы или вообще через несколько минут, как в примере - с 13:02:47:
[Вт. дек. 15 12:52:25 2015] cfg80211: World regulatory domain updated:
[Вт. дек. 15 12:52:25 2015] cfg80211: DFS Master region: unset
[Вт. дек. 15 12:52:25 2015] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[Вт. дек. 15 12:52:25 2015] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 12:52:25 2015] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 12:52:25 2015] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 12:52:25 2015] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 12:52:25 2015] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[Вт. дек. 15 12:52:25 2015] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[Вт. дек. 15 12:52:25 2015] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 12:52:25 2015] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[Вт. дек. 15 12:52:25 2015] ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
[Вт. дек. 15 12:52:25 2015] cfg80211: Calling CRDA for country: RU
[Вт. дек. 15 12:52:25 2015] ieee80211 phy0: Atheros AR9285 Rev:2 mem=0xffffc900102a0000, irq=17
[Вт. дек. 15 12:52:25 2015] cfg80211: Regulatory domain changed to country: RU
[Вт. дек. 15 12:52:25 2015] cfg80211: DFS Master region: ETSI
[Вт. дек. 15 12:52:25 2015] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[Вт. дек. 15 12:52:25 2015] cfg80211: (2402000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 12:52:25 2015] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 12:52:25 2015] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz), (N/A, 2000 mBm), (0 s)
[Вт. дек. 15 12:52:25 2015] cfg80211: (5650000 KHz - 5730000 KHz @ 80000 KHz), (N/A, 3000 mBm), (0 s)
[Вт. дек. 15 12:52:25 2015] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 3000 mBm), (N/A)
[Вт. дек. 15 12:52:25 2015] sound hdaudioC0D0: autoconfig: line_outs=1 (0x14/0x0/0x0/0x0/0x0) type:speaker
[Вт. дек. 15 12:52:25 2015] sound hdaudioC0D0: speaker_outs=0 (0x0/0x0/0x0/0x0/0x0)
[Вт. дек. 15 12:52:25 2015] sound hdaudioC0D0: hp_outs=1 (0x1a/0x0/0x0/0x0/0x0)
[Вт. дек. 15 12:52:25 2015] sound hdaudioC0D0: mono: mono_out=0x0
[Вт. дек. 15 12:52:25 2015] sound hdaudioC0D0: inputs:
[Вт. дек. 15 12:52:25 2015] sound hdaudioC0D0: Mic=0x12
[Вт. дек. 15 12:52:25 2015] input: HDA Intel Headphone Mic as /devices/pci0000:00/0000:00:1b.0/sound/card0/input10
[Вт. дек. 15 12:52:25 2015] EXT4-fs (sda1): re-mounted. Opts: errors=remount-ro
[Вт. дек. 15 12:52:25 2015] input: ETPS/2 Elantech Touchpad as /devices/platform/i8042/serio1/input/input6
[Вт. дек. 15 12:52:25 2015] systemd-journald[237]: Received request to flush runtime journal from PID 1
[Вт. дек. 15 12:52:26 2015] audit: type=1400 audit(1450176746.292:2): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/lightdm/lightdm-guest-session" pid=403 comm="apparmor_parser"
[Вт. дек. 15 12:52:26 2015] audit: type=1400 audit(1450176746.292:3): apparmor="STATUS" operation="profile_load" profile="unconfined" name="chromium" pid=403 comm="apparmor_parser"
[Вт. дек. 15 12:52:26 2015] audit: type=1400 audit(1450176746.316:4): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/sbin/dhclient" pid=403 comm="apparmor_parser"
[Вт. дек. 15 12:52:26 2015] audit: type=1400 audit(1450176746.316:5): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-client.action" pid=403 comm="apparmor_parser"
[Вт. дек. 15 12:52:26 2015] audit: type=1400 audit(1450176746.316:6): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/NetworkManager/nm-dhcp-helper" pid=403 comm="apparmor_parser"
[Вт. дек. 15 12:52:26 2015] audit: type=1400 audit(1450176746.316:7): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/lib/connman/scripts/dhclient-script" pid=403 comm="apparmor_parser"
[Вт. дек. 15 12:52:26 2015] audit: type=1400 audit(1450176746.324:8): apparmor="STATUS" operation="profile_load" profile="unconfined" name="system_tor" pid=403 comm="apparmor_parser"
[Вт. дек. 15 12:52:26 2015] audit: type=1400 audit(1450176746.416:9): apparmor="STATUS" operation="profile_load" profile="unconfined" name="/usr/bin/evince" pid=403 comm="apparmor_parser"
[Вт. дек. 15 12:52:26 2015] audit: type=1400 audit(1450176746.416:10): apparmor="STATUS" operation="profile_load" profile="unconfined" name="sanitized_helper" pid=403 comm="apparmor_parser"
[Вт. дек. 15 12:52:29 2015] wlan0: authenticate with d4:ca:6d:1f:5f:fb
[Вт. дек. 15 12:52:29 2015] wlan0: send auth to d4:ca:6d:1f:5f:fb (try 1/3)
[Вт. дек. 15 12:52:29 2015] wlan0: authenticated
[Вт. дек. 15 12:52:29 2015] ath9k 0000:02:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[Вт. дек. 15 12:52:29 2015] ath9k 0000:02:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[Вт. дек. 15 12:52:29 2015] wlan0: associate with d4:ca:6d:1f:5f:fb (try 1/3)
[Вт. дек. 15 12:52:29 2015] wlan0: RX AssocResp from d4:ca:6d:1f:5f:fb (capab=0x431 status=0 aid=1)
[Вт. дек. 15 12:52:29 2015] wlan0: associated
[Вт. дек. 15 12:54:49 2015] perf interrupt took too long (2505 > 2500), lowering kernel.perf_event_max_sample_rate to 50000
[Вт. дек. 15 13:00:14 2015] perf interrupt took too long (6379 > 5000), lowering kernel.perf_event_max_sample_rate to 25000
[Вт. дек. 15 13:02:44 2015] usb 1-1: new high-speed USB device number 3 using ehci-pci
[Вт. дек. 15 13:02:44 2015] usb 1-1: New USB device found, idVendor=8564, idProduct=1000
[Вт. дек. 15 13:02:44 2015] usb 1-1: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[Вт. дек. 15 13:02:44 2015] usb 1-1: Product: Mass Storage Device
[Вт. дек. 15 13:02:44 2015] usb 1-1: Manufacturer: JetFlash
[Вт. дек. 15 13:02:44 2015] usb 1-1: SerialNumber: 4E3X2FJG
[Вт. дек. 15 13:02:44 2015] usb-storage 1-1:1.0: USB Mass Storage device detected
[Вт. дек. 15 13:02:44 2015] scsi host4: usb-storage 1-1:1.0
[Вт. дек. 15 13:02:44 2015] usbcore: registered new interface driver usb-storage
[Вт. дек. 15 13:02:44 2015] usbcore: registered new interface driver uas
[Вт. дек. 15 13:02:45 2015] scsi 4:0:0:0: Direct-Access JetFlash Transcend 4GB 8.07 PQ: 0 ANSI: 2
[Вт. дек. 15 13:02:45 2015] sd 4:0:0:0: Attached scsi generic sg1 type 0
[Вт. дек. 15 13:02:45 2015] sd 4:0:0:0: [sdb] 7843840 512-byte logical blocks: (4.01 GB/3.74 GiB)
[Вт. дек. 15 13:02:45 2015] sd 4:0:0:0: [sdb] Write Protect is off
[Вт. дек. 15 13:02:45 2015] sd 4:0:0:0: [sdb] Mode Sense: 03 00 00 00
[Вт. дек. 15 13:02:45 2015] sd 4:0:0:0: [sdb] No Caching mode page found
[Вт. дек. 15 13:02:45 2015] sd 4:0:0:0: [sdb] Assuming drive cache: write through
[Вт. дек. 15 13:02:46 2015] sdb: sdb1
[Вт. дек. 15 13:02:46 2015] sd 4:0:0:0: [sdb] Attached SCSI removable disk
[Вт. дек. 15 13:02:46 2015] FAT-fs (sdb1): Volume was not properly unmounted. Some data may be corrupt. Please run fsck.
[Вт. дек. 15 13:02:47 2015] snd_hda_intel 0000:00:1b.0: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj.
[Вт. дек. 15 13:02:49 2015] ath: phy0: Failed to stop TX DMA, queues=0x00a!
[Вт. дек. 15 13:02:49 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:02:49 2015] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
[Вт. дек. 15 13:02:49 2015] ath: phy0: Chip reset failed
[Вт. дек. 15 13:02:49 2015] ath: phy0: Unable to reset channel, reset status -22
[Вт. дек. 15 13:02:49 2015] cfg80211: Calling CRDA to update world regulatory domain
[Вт. дек. 15 13:02:49 2015] cfg80211: World regulatory domain updated:
[Вт. дек. 15 13:02:49 2015] cfg80211: DFS Master region: unset
[Вт. дек. 15 13:02:49 2015] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp), (dfs_cac_time)
[Вт. дек. 15 13:02:49 2015] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 13:02:49 2015] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 13:02:49 2015] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 13:02:49 2015] cfg80211: (5170000 KHz - 5250000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 13:02:49 2015] cfg80211: (5250000 KHz - 5330000 KHz @ 80000 KHz, 160000 KHz AUTO), (N/A, 2000 mBm), (0 s)
[Вт. дек. 15 13:02:49 2015] cfg80211: (5490000 KHz - 5730000 KHz @ 160000 KHz), (N/A, 2000 mBm), (0 s)
[Вт. дек. 15 13:02:49 2015] cfg80211: (5735000 KHz - 5835000 KHz @ 80000 KHz), (N/A, 2000 mBm), (N/A)
[Вт. дек. 15 13:02:49 2015] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 0 mBm), (N/A)
[Вт. дек. 15 13:02:49 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:02:49 2015] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
[Вт. дек. 15 13:02:49 2015] ath: phy0: Chip reset failed
[Вт. дек. 15 13:02:49 2015] ath: phy0: Unable to reset channel, reset status -22
[Вт. дек. 15 13:02:49 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:02:49 2015] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
[Вт. дек. 15 13:02:49 2015] ath: phy0: Chip reset failed
[Вт. дек. 15 13:02:49 2015] ath: phy0: Unable to reset channel, reset status -22
[Вт. дек. 15 13:02:50 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:02:50 2015] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
[Вт. дек. 15 13:02:50 2015] ath: phy0: Chip reset failed
[Вт. дек. 15 13:02:50 2015] ath: phy0: Unable to reset channel, reset status -22
[Вт. дек. 15 13:02:50 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:02:50 2015] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
[Вт. дек. 15 13:02:50 2015] ath: phy0: Chip reset failed
[Вт. дек. 15 13:02:50 2015] ath: phy0: Unable to reset channel, reset status -22
[Вт. дек. 15 13:02:50 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:02:50 2015] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
[Вт. дек. 15 13:02:50 2015] ath: phy0: Chip reset failed
[Вт. дек. 15 13:02:50 2015] ath: phy0: Unable to reset channel, reset status -22
[Вт. дек. 15 13:02:50 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:02:50 2015] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
[Вт. дек. 15 13:02:50 2015] ath: phy0: Chip reset failed
[Вт. дек. 15 13:02:50 2015] ath: phy0: Unable to reset channel, reset status -22
[Вт. дек. 15 13:02:50 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:02:50 2015] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
[Вт. дек. 15 13:02:50 2015] ath: phy0: Chip reset failed
[Вт. дек. 15 13:02:50 2015] ath: phy0: Unable to reset channel, reset status -22
[Вт. дек. 15 13:02:51 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:02:51 2015] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
[Вт. дек. 15 13:02:51 2015] ath: phy0: Chip reset failed
[Вт. дек. 15 13:02:51 2015] ath: phy0: Unable to reset channel, reset status -22
[Вт. дек. 15 13:02:51 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:02:51 2015] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
[Вт. дек. 15 13:02:51 2015] ath: phy0: Chip reset failed
...
[Вт. дек. 15 13:03:19 2015] ath: phy0: Unable to reset channel, reset status -22
[Вт. дек. 15 13:03:19 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:03:19 2015] ath: phy0: Could not stop RX, we could be confusing the DMA engine when we start RX up
[Вт. дек. 15 13:03:19 2015] ath: phy0: Chip reset failed
[Вт. дек. 15 13:03:19 2015] ath: phy0: Unable to reset channel, reset status -22
[Вт. дек. 15 13:03:19 2015] ath: phy0: RX failed to go idle in 10 ms RXSM=0xffffffff
[Вт. дек. 15 13:03:19 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:03:20 2015] ath: phy0: Failed to wakeup in 500us
[Вт. дек. 15 13:03:21 2015] ath: phy0: RX failed to go idle in 10 ms RXSM=0xffffffff
[Вт. дек. 15 13:03:21 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:03:21 2015] irq 17: nobody cared (try booting with the "irqpoll" option)
[Вт. дек. 15 13:03:21 2015] CPU: 0 PID: 1272 Comm: skype Not tainted 3.19.0-41-generic #46-Ubuntu
[Вт. дек. 15 13:03:21 2015] Hardware name: ASUSTeK Computer INC. 1001PXD/1001PXD, BIOS 0403 12/01/2010
[Вт. дек. 15 13:03:21 2015] ffff8800395c0aa4 ffff88003f403e28 ffffffff817c58a2 ffff88003f40fdb8
[Вт. дек. 15 13:03:21 2015] ffff8800395c0a00 ffff88003f403e58 ffffffff810d1106 ffffffff81cbcc40
[Вт. дек. 15 13:03:21 2015] ffff8800395c0a00 0000000000000000 0000000000000011 ffff88003f403e98
[Вт. дек. 15 13:03:21 2015] Call Trace:
[Вт. дек. 15 13:03:21 2015] <IRQ> [<ffffffff817c58a2>] dump_stack+0x45/0x57
[Вт. дек. 15 13:03:21 2015] [<ffffffff810d1106>] __report_bad_irq+0x36/0xd0
[Вт. дек. 15 13:03:21 2015] [<ffffffff810d14b7>] note_interrupt+0x267/0x2b0
[Вт. дек. 15 13:03:21 2015] [<ffffffff810ceb43>] handle_irq_event_percpu+0x133/0x1a0
[Вт. дек. 15 13:03:21 2015] [<ffffffff810cebf1>] handle_irq_event+0x41/0x70
[Вт. дек. 15 13:03:21 2015] [<ffffffff810d18e6>] handle_fasteoi_irq+0x86/0x140
[Вт. дек. 15 13:03:21 2015] [<ffffffff81017792>] handle_irq+0x22/0x40
[Вт. дек. 15 13:03:21 2015] [<ffffffff817cf95f>] do_IRQ+0x4f/0xf0
[Вт. дек. 15 13:03:21 2015] [<ffffffff817cd76d>] common_interrupt+0x6d/0x6d
[Вт. дек. 15 13:03:21 2015] <EOI> [<ffffffff817cf32a>] ? sysenter_dispatch+0x7/0x21
[Вт. дек. 15 13:03:21 2015] handlers:
[Вт. дек. 15 13:03:21 2015] [<ffffffffc04914d0>] ath_isr [ath9k]
[Вт. дек. 15 13:03:21 2015] Disabling IRQ #17
[Вт. дек. 15 13:03:25 2015] ath: phy0: Failed to wakeup in 500us
[Вт. дек. 15 13:03:25 2015] ath: phy0: RX failed to go idle in 10 ms RXSM=0xffffffff
[Вт. дек. 15 13:03:26 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:03:30 2015] ath: phy0: Failed to wakeup in 500us
[Вт. дек. 15 13:03:30 2015] ath: phy0: RX failed to go idle in 10 ms RXSM=0xffffffff
[Вт. дек. 15 13:03:31 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
[Вт. дек. 15 13:03:35 2015] ath: phy0: Failed to wakeup in 500us
[Вт. дек. 15 13:03:35 2015] ath: phy0: RX failed to go idle in 10 ms RXSM=0xffffffff
[Вт. дек. 15 13:03:36 2015] ath: phy0: DMA failed to stop in 10 ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
Возможно проявляется та же проблема и при выходе из спящего режима - беспроводная сеть восстанавливает соединение буквально на считаные минуты.
Буду признателен за бриф по установке этой заплатки.