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Date: Mon, 22 Apr 2013 10:30:12 -0700
Message-ID: <CAJ-Vmonm78MF=3jO19MESsmfizCTti-CHMaZTn7cNUKDSNH32g@mail.gmail.com> (sfid-20130422_193019_175288_6B56D23F)
Subject: Re: ath9k problems on openSUSE 12.3
From: Adrian Chadd <adrian@freebsd.org>
To: Gerry Gavigan <gerry@gavigan.f9.co.uk>
Cc: linux-wireless@vger.kernel.org
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Sender: linux-wireless-owner@vger.kernel.org
List-ID: <linux-wireless.vger.kernel.org>

Wasn't there a recent change to ath9k which reverted an initval
change? Specifically for the AR9485?

The problem was an unstable PLL that shows up when you do aggressive
PCIe PHY power save.

The change was to go back to the previous PCIe initval array.



Adrian


On 22 April 2013 05:30, Gerry Gavigan <gerry@gavigan.f9.co.uk> wrote:
> After some discussion :
>
> https://forums.opensuse.org/english/get-technical-help-here/wireless/484686-advanced-atheros-issue-12-3-ath9k-64bit-frequent-random-de-auths-2.html
>
> I have been advised to seek help here as the phase lock loop is not working.
>
> In case it's relevant:
>
> - the wifi was working if possibly slightly unstable until I upgraded to
> 3.8.7
>   (to cure suspend and resume on a gma500 in an AAO)
>
> - Downgrading didn't work
>
> lspci -nn returns
>
> 02:00.0 Network controller [0280]: Atheros Communications Inc. AR9485
> Wireless Network Adapter [168c:0032] (rev 01)
>
> dmesg reports
>
> [ 24.800514] ------------[ cut here ]------------
> [ 24.800563] WARNING: at
> /home/abuild/rpmbuild/BUILD/kernel-desktop-3.7.10/linux-3.7/drivers/net/wireless/ath/ath9k/hw.c:794
> ar9003_get_pll_sqsum_dvc+0xa8/0xc0 [ath9k_hw]()
> [ 24.800567] Hardware name: AOD270
> [ 24.800571] Modules linked in: xt_tcpudp xt_pkttype xt_LOG xt_limit
> af_packet bnep bluetooth ip6t_REJECT nf_conntrack_ipv6 nf_defrag_ipv6
> ip6table_raw ipt_REJECT iptable_raw xt_CT iptable_filter ip6table_mangle
> nf_conntrack_netbios_ns nf_conntrack_broadcast nf_conntrack_ipv4
> nf_defrag_ipv4 ip_tables xt_conntrack nf_conntrack ip6table_filter
> ip6_tables x_tables cpufreq_conservative cpufreq_userspace cpufreq_powersave
> acpi_cpufreq mperf coretemp iTCO_wdt iTCO_vendor_support acer_wmi
> sparse_keymap snd_hda_codec_realtek snd_hda_codec_hdmi snd_hda_intel
> snd_hda_codec snd_hwdep snd_pcm snd_seq microcode serio_raw pcspkr i2c_i801
> snd_timer snd_seq_device uvcvideo videobuf2_core sg videodev
> videobuf2_vmalloc videobuf2_memops lpc_ich mfd_core arc4 joydev snd ath9k
> rts_pstor(C) mac80211 ath9k_common ath9k_hw ath cfg80211 rfkill r8169
> soundcore snd_page_alloc wmi ac battery button autofs4 gma500_gfx
> drm_kms_helper drm i2c_algo_bit video thermal processor thermal_sys
> scsi_dh_rdac scsi_dh_emc scsi_dh_alua scsi_dh_hp_sw scsi_dh
> [ 24.800687] Pid: 64, comm: kworker/u:3 Tainted: G C 3.7.10-1.1-desktop #1
> [ 24.800690] Call Trace:
> [ 24.800713] [<c0205779>] try_stack_unwind+0x199/0x1b0
> [ 24.800729] [<c0204487>] dump_trace+0x47/0xf0
> [ 24.800740] [<c02057db>] show_trace_log_lvl+0x4b/0x60
> [ 24.800749] [<c0205808>] show_trace+0x18/0x20
> [ 24.800760] [<c06fbeeb>] dump_stack+0x6d/0x72
> [ 24.800812] [<c0238cb8>] warn_slowpath_common+0x78/0xb0
> [ 24.800855] [<c0238d0b>] warn_slowpath_null+0x1b/0x20
> [ 24.800897] [<f7c84448>] ar9003_get_pll_sqsum_dvc+0xa8/0xc0 [ath9k_hw]
> [ 24.800941] [<f7b2d2b8>] ath_hw_pll_work+0x48/0xc0 [ath9k]
> [ 24.801012] [<c02527dc>] process_one_work+0x10c/0x400
> [ 24.801038] [<c0253e89>] worker_thread+0x119/0x3b0
> [ 24.801055] [<c02584f2>] kthread+0x92/0xa0
> [ 24.801076] [<c070dc67>] ret_from_kernel_thread+0x1b/0x28
> [ 24.801093] [<c0258460>] kthread_create_on_node+0xd0/0xd0
> [ 24.808339] DWARF2 unwinder stuck at kthread+0x0/0xa0
> [ 24.808346]
> [ 24.808350] Leftover inexact backtrace:
> [ 24.808350]
> [ 24.808361] ---[ end trace 33960a031f166c71 ]---
>
>
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