not sure if this ubuntu's issue with the development branch of there software, but suspending with this machine and waking-up with good quality wireless is not consistent. I have noticed this message in the syslog(but am unsure if its related to the suspend issues since I was getting other traces with other modules) [15886.175455] ath: Failed to stop TX DMA, queues=0x005! [15886.192912] ath: DMA failed to stop in 10 ms AR_CR=0x00000024 AR_DIAG_SW=0x02000020 DMADBG_7=0x00006040 [15886.192918] ath: Could not stop RX, we could be confusing the DMA engine when we start RX up [15886.192920] ------------[ cut here ]------------ [15886.192931] WARNING: at drivers/net/wireless/ath/ath9k/recv.c:537 ath_stoprecv+0xed/0x100 [ath9k]() [15886.192933] Hardware name: 0914 [15886.192935] Modules linked in: nls_iso8859_1 nls_cp437 vfat fat usb_storage cdc_acm usbhid hid parport_pc ppdev dm_crypt ipt_REJECT ipt_LOG xt_limit xt_tcpudp arc4 xt_addrtype ath9k xt_state mac80211 joydev nf_conntrack_netbios_ns nf_conntrack_broadcast snd_hda_codec_hdmi nf_nat_ftp nf_nat snd_hda_codec_conexant ath9k_common snd_hda_intel snd_hda_codec nf_conntrack_ipv4 nf_defrag_ipv4 ath9k_hw snd_hwdep snd_pcm snd_seq_midi snd_rawmidi nf_conntrack_ftp nf_conntrack uvcvideo snd_seq_midi_event videobuf2_core iptable_filter ip_tables ath snd_seq videodev videobuf2_vmalloc videobuf2_memops psmouse intel_ips x_tables cfg80211 snd_timer snd_seq_device snd soundcore snd_page_alloc ideapad_laptop sparse_keymap mei(C) wmi serio_raw lp parport i915 drm_kms_helper drm r8169 i2c_algo_bit video [15886.192997] Pid: 8687, comm: kworker/u:0 Tainted: G C 3.3.0-rc3-00172-g3f8aed3 #1 [15886.193014] Call Trace: [15886.193026] [<c1042ca2>] warn_slowpath_common+0x72/0xa0 [15886.193033] [<f8b6816d>] ? ath_stoprecv+0xed/0x100 [ath9k] [15886.193039] [<f8b6816d>] ? ath_stoprecv+0xed/0x100 [ath9k] [15886.193043] [<c1042cf2>] warn_slowpath_null+0x22/0x30 [15886.193049] [<f8b6816d>] ath_stoprecv+0xed/0x100 [ath9k] [15886.193057] [<f8b63ced>] ath_prepare_reset+0x5d/0xd0 [ath9k] [15886.193063] [<f8b6527c>] ath_reset_internal+0x7c/0x160 [ath9k] [15886.193068] [<c10a492b>] ? trace_hardirqs_on+0xb/0x10 [15886.193073] [<f8b657e3>] ath9k_config+0x1f3/0x510 [ath9k] [15886.193093] [<f940a975>] ieee80211_hw_config+0x115/0x370 [mac80211] [15886.193107] [<f9412d5a>] ieee80211_scan_work+0x1ca/0x6b0 [mac80211] [15886.193111] [<c1062726>] process_one_work+0x166/0x5b0 [15886.193115] [<c10626b2>] ? process_one_work+0xf2/0x5b0 [15886.193120] [<c12c6eab>] ? do_raw_spin_lock+0x3b/0xf0 [15886.193132] [<f9412b90>] ? ieee80211_scan_rx+0x1b0/0x1b0 [mac80211] [15886.193139] [<c1062e84>] worker_thread+0x124/0x2c0 [15886.193142] [<c1062d60>] ? rescuer_thread+0x1c0/0x1c0 [15886.193145] [<c10674fd>] kthread+0x7d/0x90 [15886.193149] [<c1067480>] ? __init_kthread_worker+0x60/0x60 [15886.193155] [<c158fec2>] kernel_thread_helper+0x6/0x10 [15886.193157] ---[ end trace 883570b757402f86 ]--- [15886.271478] ath: Failed to stop TX DMA, queues=0x001! full dmesg is here: http://fpaste.org/Uo91/ I will continue to watch this, and let you know if I see anything. the wireless card is: lspci: 05:00.0 Network controller: Atheros Communications Inc. AR9285 Wireless Network Adapter (PCI-Express) (rev 01) -- Justin P. Mattock <justinmattock@xxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html