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Message-ID: <CAD2nsn0k_npLj49cqB0z_gQgT8-kEMrEG3xZSGM9fd5kRGawSQ@mail.gmail.com>
Date:	Sat, 7 Jan 2012 17:18:10 +0530
From:	Mohammed Shafi <shafi.wireless@...il.com>
To:	MR <g7af0ec1e3ea1e7b1@...tmail.ru>
Cc:	linux-kernel@...r.kernel.org, linux-wireless@...r.kernel.org
Subject: Re: ath9k crash 3.2-rc7

2012/1/7 MR <g7af0ec1e3ea1e7b1@...tmail.ru>:
>  > 2012/1/6 MR <g7af0ec1e3ea1e7b1@...tmail.ru>:
>  > >  > >  > can a find a fix
>  > >  > >  > for both of them
>  > >  > >
>  > >  > > I am building kernel with pos<0 check added...
>  > >  >
>  > >  > thanks!  if it does not works, i have only one more idea(a patch
>  >>  > which removes some suspicious code which abuses a pointer any way that
>  >>  > has to be fixed properly ). otherwise i need to recreate the issue and
>  > >  > capture the stack trace completely, put debug prints. i ran an
>  >>  > overnight test but was unable to recreate the issue. later today AN  i
>  > >  > got a crash accidentally but only once, after that never.
>  > >
>  >> What is a complete stack trace? Maybe I can configure console in some way
>  >and
>  > > get the needed information.
>  > >
>  > >
>  > yes, you can try netconsole
>  >
>  > *connect your test machine with wifi with another machine via ethernet
>  > *give IPS 192.168.2.45 for your test machine and 192.168.2.35 for the
>  > machine that collects the logs
>  >
>  > in the machine collecting log
>  >
>  > nc -l -u 1111
>  >
>  >
>  > in your test machine this script should be started
>  >
>  > #!/bin/sh
>  > #sudo service network-manager stop
>  > sudo ifconfig eth0 192.168.2.45 netmask 255.255.255.0 up
>  > sudo dmesg -n 8
>  > sudo modprobe netconsole
>  > netconsole=4444@....168.2.45/eth0,1111@....168.2.35/00:15:58:c3:bf:25
>  >
>  > the last one is your mac address of  machine you collect logs
>
> I managed to get some _weird_ effects with it. I.e, I did something right
> (emergency syncs do appear on the target computer), but most of dmesg doesn't
> manage to get across one meter of copper.
>
> That doesn't matter, though. It does look like pos>37 check may trigger some
> adverse sign effects or something. So pos<0 check - or blind luck? - gave me
> a good disk-saveable trace...

thanks for the providing the log. it looks like there is some other
problem in doing the chip reset and
eventually when we get into ath_update_survey_stats we are hitting the panic.
you can try two things:

*after these WARNINGS, is your card in some stable state?. are you
able to see it in lspci(ie does it gets disappeared) and still
continue your wifi operation. if not then there is some other problem
while the panic is a symptom of it.
*does the other patch which remove some suspicious looking code, to
see if it improves the situation and avoids the warnings itself.

>
> There is more of the same later, of course. Much more. It looks the same,
> though.
>
> Jan  6 23:33:07 401a0bf1 kernel: [ 2259.717612] netconsole: network logging
> started
> Jan  7 00:21:28 401a0bf1 kernel: [ 5158.210728] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:28 401a0bf1 kernel: [ 5158.276098] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:28 401a0bf1 kernel: [ 5158.288955] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:28 401a0bf1 kernel: [ 5158.288958] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:29 401a0bf1 kernel: [ 5158.404436] ath: Chip reset failed
> Jan  7 00:21:29 401a0bf1 kernel: [ 5158.404440] ath: Unable to reset channel,
> reset status -22
> Jan  7 00:21:29 401a0bf1 kernel: [ 5158.867030] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:29 401a0bf1 kernel: [ 5158.932325] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:29 401a0bf1 kernel: [ 5158.945170] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:29 401a0bf1 kernel: [ 5158.945172] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:29 401a0bf1 kernel: [ 5159.060572] ath: Chip reset failed
> Jan  7 00:21:29 401a0bf1 kernel: [ 5159.060576] ath: Unable to reset channel,
> reset status -22
> Jan  7 00:21:30 401a0bf1 kernel: [ 5159.523536] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:30 401a0bf1 kernel: [ 5159.588735] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:30 401a0bf1 kernel: [ 5159.601586] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:30 401a0bf1 kernel: [ 5159.601588] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:30 401a0bf1 kernel: [ 5159.717074] ath: Chip reset failed
> Jan  7 00:21:30 401a0bf1 kernel: [ 5159.717078] ath: Unable to reset channel,
> reset status -22
> Jan  7 00:21:31 401a0bf1 kernel: [ 5160.709373] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:31 401a0bf1 kernel: [ 5160.774656] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:31 401a0bf1 kernel: [ 5160.787499] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:31 401a0bf1 kernel: [ 5160.787501] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:31 401a0bf1 kernel: [ 5160.903039] ath: Chip reset failed
> Jan  7 00:21:31 401a0bf1 kernel: [ 5160.903041] ath: Unable to reset channel,
> reset status -22
> Jan  7 00:21:31 401a0bf1 kernel: [ 5160.968449] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:31 401a0bf1 kernel: [ 5160.981289] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:31 401a0bf1 kernel: [ 5160.981294] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:31 401a0bf1 kernel: [ 5161.096681] ath: Chip reset failed
> Jan  7 00:21:31 401a0bf1 kernel: [ 5161.096686] ath: Unable to reset channel
> (2417 MHz), reset status -22
> Jan  7 00:21:31 401a0bf1 kernel: [ 5161.223178] ath: Failed to wakeup in
> 500us
> Jan  7 00:21:31 401a0bf1 kernel: [ 5161.239556] ath: Failed to wakeup in
> 500us
> Jan  7 00:21:31 401a0bf1 kernel: [ 5161.255021] ath: Failed to wakeup in
> 500us
> Jan  7 00:21:31 401a0bf1 kernel: [ 5161.255111] cfg80211: Calling CRDA for
> country: RU
> Jan  7 00:21:32 401a0bf1 kernel: [ 5161.400675] ath: Failed to wakeup in
> 500us
> Jan  7 00:21:32 401a0bf1 kernel: [ 5161.411484] ath: Failed to wakeup in
> 500us
> Jan  7 00:21:32 401a0bf1 kernel: [ 5161.527195] ath: Chip reset failed
> Jan  7 00:21:32 401a0bf1 kernel: [ 5161.527199] ath: Unable to reset channel
> (2417 MHz), reset status -22
> Jan  7 00:21:32 401a0bf1 kernel: [ 5162.022122] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:32 401a0bf1 kernel: [ 5162.087365] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:32 401a0bf1 kernel: [ 5162.100217] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:32 401a0bf1 kernel: [ 5162.100219] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:32 401a0bf1 kernel: [ 5162.215756] ath: Chip reset failed
> Jan  7 00:21:32 401a0bf1 kernel: [ 5162.215759] ath: Unable to reset channel,
> reset status -22
> Jan  7 00:21:32 401a0bf1 kernel: [ 5162.280986] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.293810] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.293814] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.409170] ath: Chip reset failed
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.409175] ath: Unable to reset channel,
> reset status -22
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.409228] ath: Unable to set channel
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.474544] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.487419] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.487422] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.602974] ath: Chip reset failed
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.602979] ath: Unable to reset channel,
> reset status -22
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603031] ath: Unable to set channel
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603045] ------------[ cut here ]-----
> -------
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603058] WARNING: at
> drivers/net/wireless/ath/ath9k/main.c:195 ath_update_survey_stats+0x233/0x260
> [ath9k]()
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603060] Hardware name: N53Jn
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603061] Modules linked in: netconsole
> af_packet snd_pcm_oss snd_mixer_oss cls_cgroup uvcvideo videodev
> v4l2_compat_ioctl32 cdc_phonet phonet bsd_comp ppp_deflate ppp_async
> crc_ccitt ppp_generic slhc cdc_acm rtc_cmos configs kvm_intel kvm atl1c
> ide_cd_mod ide_core pktcdvd pata_atiixp ipip tunnel4 ftdi_sio usbserial arc4
> ath9k mac80211 ath9k_common ath9k_hw ath cfg80211 rfkill 8139too mii fuse
> thermal ac tun usb_storage usb_libusual speedstep_lib cpufreq_powersave
> cpufreq_performance loop ipv6 snd_hda_codec_hdmi snd_hda_codec_realtek
> snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore
> snd_page_alloc battery power_supply coretemp cpufreq_ondemand acpi_cpufreq
> freq_table processor mperf i915 fbcon tileblit font bitblit softcursor
> drm_kms_helper drm intel_agp i2c_algo_bit button intel_gtt agpgart video
> thermal_sys hwmon ext4 jbd2 crc16 sr_mod cdrom ahci libahci xtkbd ohci_hcd
> uhci_hcd ehci_hcd xhci_hcd usbhid hid usbcore usb_common btrfs zlib_deflate
> libcrc32c
> Jan  7 00:21:33 401a0bf1 kernel: rc32c ext3 jbd mbcache synaptics_i2c
> i2c_core sermouse psmouse evdev pcips2 sd_mod crc_t10dif libata scsi_mod
> dm_mod unix [last unloaded: ath5k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603129] Pid: 777, comm: kworker/u:0
> Not tainted 3.2.0 #1
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603131] Call Trace:
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603138]
> [warn_slowpath_common+0x7a/0xb0] warn_slowpath_common+0x7a/0xb0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603138]  [<ffffffff8104c9ba>]
> warn_slowpath_common+0x7a/0xb0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603141]
> [warn_slowpath_null+0x15/0x20] warn_slowpath_null+0x15/0x20
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603141]  [<ffffffff8104ca05>]
> warn_slowpath_null+0x15/0x20
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603144]
> [ath9k:ath_update_survey_stats+0x233/0x260]
> ath_update_survey_stats+0x233/0x260 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603144]  [<ffffffffa055e453>]
> ath_update_survey_stats+0x233/0x260 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603147]
> [ath9k:ath9k_config+0x115/0x780] ath9k_config+0x115/0x780 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603147]  [<ffffffffa0560a45>]
> ath9k_config+0x115/0x780 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603152]  [queue_work+0x1a/0x20] ?
> queue_work+0x1a/0x20
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603152]  [<ffffffff81061dba>] ?
> queue_work+0x1a/0x20
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603154]
> [queue_delayed_work+0x25/0x30] ? queue_delayed_work+0x25/0x30
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603154]  [<ffffffff81061e65>] ?
> queue_delayed_work+0x25/0x30
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603161]
> [mac80211:ieee80211_queue_delayed_work+0x46/0x60] ?
> ieee80211_queue_delayed_work+0x46/0x60 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603161]  [<ffffffffa053d3f6>] ?
> ieee80211_queue_delayed_work+0x46/0x60 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603165]
> [ath9k:ath9k_flush+0x155/0x1d0] ? ath9k_flush+0x155/0x1d0 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603165]  [<ffffffffa055f7b5>] ?
> ath9k_flush+0x155/0x1d0 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603168]
> [mac80211:ieee80211_hw_config+0xe2/0x160] ieee80211_hw_config+0xe2/0x160
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603168]  [<ffffffffa051e272>]
> ieee80211_hw_config+0xe2/0x160 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603173]
> [mac80211:ieee80211_scan_work+0x243/0x5c0] ieee80211_scan_work+0x243/0x5c0
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603173]  [<ffffffffa0523a03>]
> ieee80211_scan_work+0x243/0x5c0 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603178]
> [mac80211:ieee80211_scan_work+0x0/0x5c0] ? ieee80211_scan_rx+0x1c0/0x1c0
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603178]  [<ffffffffa05237c0>] ?
> ieee80211_scan_rx+0x1c0/0x1c0 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603180]
> [process_one_work+0x111/0x390] process_one_work+0x111/0x390
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603180]  [<ffffffff81062eb1>]
> process_one_work+0x111/0x390
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603183]  [worker_thread+0x162/0x340]
> worker_thread+0x162/0x340
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603183]  [<ffffffff81063d12>]
> worker_thread+0x162/0x340
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603185]  [worker_thread+0x0/0x340] ?
> manage_workers.clone.26+0x240/0x240
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603185]  [<ffffffff81063bb0>] ?
> manage_workers.clone.26+0x240/0x240
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603188]  [kthread+0x96/0xa0]
> kthread+0x96/0xa0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603188]  [<ffffffff81068936>]
> kthread+0x96/0xa0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603193]
> [kernel_thread_helper+0x4/0x10] kernel_thread_helper+0x4/0x10
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603193]  [<ffffffff8135eef4>]
> kernel_thread_helper+0x4/0x10
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603195]  [kthread+0x0/0xa0] ?
> kthread_worker_fn+0x190/0x190
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603195]  [<ffffffff810688a0>] ?
> kthread_worker_fn+0x190/0x190
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603197]
> [kernel_thread_helper+0x0/0x10] ? gs_change+0x13/0x13
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603197]  [<ffffffff8135eef0>] ?
> gs_change+0x13/0x13
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603199] ---[ end trace
> 852186af63bdb712 ]---
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603200]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.603201] pos is 1810403901 index out
> of bounds!!! in ath_update_survey_stats
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.668425] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.681273] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.681275] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796837] ath: Chip reset failed
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796839] ath: Unable to reset channel,
> reset status -22
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796863] ath: Unable to set channel
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796873] ------------[ cut here ]-----
> -------
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796889] WARNING: at
> drivers/net/wireless/ath/ath9k/main.c:195 ath_update_survey_stats+0x233/0x260
> [ath9k]()
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796892] Hardware name: N53Jn
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796893] Modules linked in: netconsole
> af_packet snd_pcm_oss snd_mixer_oss cls_cgroup uvcvideo videodev
> v4l2_compat_ioctl32 cdc_phonet phonet bsd_comp ppp_deflate ppp_async
> crc_ccitt ppp_generic slhc cdc_acm rtc_cmos configs kvm_intel kvm atl1c
> ide_cd_mod ide_core pktcdvd pata_atiixp ipip tunnel4 ftdi_sio usbserial arc4
> ath9k mac80211 ath9k_common ath9k_hw ath cfg80211 rfkill 8139too mii fuse
> thermal ac tun usb_storage usb_libusual speedstep_lib cpufreq_powersave
> cpufreq_performance loop ipv6 snd_hda_codec_hdmi snd_hda_codec_realtek
> snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore
> snd_page_alloc battery power_supply coretemp cpufreq_ondemand acpi_cpufreq
> freq_table processor mperf i915 fbcon tileblit font bitblit softcursor
> drm_kms_helper drm intel_agp i2c_algo_bit button intel_gtt agpgart video
> thermal_sys hwmon ext4 jbd2 crc16 sr_mod cdrom ahci libahci xtkbd ohci_hcd
> uhci_hcd ehci_hcd xhci_hcd usbhid hid usbcore usb_common btrfs zlib_deflate
> libcrc32c
> Jan  7 00:21:33 401a0bf1 kernel: rc32c ext3 jbd mbcache synaptics_i2c
> i2c_core sermouse psmouse evdev pcips2 sd_mod crc_t10dif libata scsi_mod
> dm_mod unix [last unloaded: ath5k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796970] Pid: 777, comm: kworker/u:0
> Tainted: G        W    3.2.0 #1
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796972] Call Trace:
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796981]
> [warn_slowpath_common+0x7a/0xb0] warn_slowpath_common+0x7a/0xb0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796981]  [<ffffffff8104c9ba>]
> warn_slowpath_common+0x7a/0xb0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796984]
> [warn_slowpath_null+0x15/0x20] warn_slowpath_null+0x15/0x20
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796984]  [<ffffffff8104ca05>]
> warn_slowpath_null+0x15/0x20
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796988]
> [ath9k:ath_update_survey_stats+0x233/0x260]
> ath_update_survey_stats+0x233/0x260 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796988]  [<ffffffffa055e453>]
> ath_update_survey_stats+0x233/0x260 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796992]
> [ath9k:ath9k_config+0x115/0x780] ath9k_config+0x115/0x780 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.796992]  [<ffffffffa0560a45>]
> ath9k_config+0x115/0x780 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797000]
> [mac80211:ieee80211_hw_config+0xe2/0x160] ieee80211_hw_config+0xe2/0x160
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797000]  [<ffffffffa051e272>]
> ieee80211_hw_config+0xe2/0x160 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797007]
> [mac80211:ieee80211_scan_work+0x243/0x5c0] ieee80211_scan_work+0x243/0x5c0
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797007]  [<ffffffffa0523a03>]
> ieee80211_scan_work+0x243/0x5c0 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797014]
> [mac80211:ieee80211_scan_work+0x0/0x5c0] ? ieee80211_scan_rx+0x1c0/0x1c0
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797014]  [<ffffffffa05237c0>] ?
> ieee80211_scan_rx+0x1c0/0x1c0 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797019]
> [process_one_work+0x111/0x390] process_one_work+0x111/0x390
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797019]  [<ffffffff81062eb1>]
> process_one_work+0x111/0x390
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797023]  [worker_thread+0x162/0x340]
> worker_thread+0x162/0x340
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797023]  [<ffffffff81063d12>]
> worker_thread+0x162/0x340
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797026]  [worker_thread+0x0/0x340] ?
> manage_workers.clone.26+0x240/0x240
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797026]  [<ffffffff81063bb0>] ?
> manage_workers.clone.26+0x240/0x240
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797030]  [kthread+0x96/0xa0]
> kthread+0x96/0xa0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797030]  [<ffffffff81068936>]
> kthread+0x96/0xa0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797036]
> [kernel_thread_helper+0x4/0x10] kernel_thread_helper+0x4/0x10
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797036]  [<ffffffff8135eef4>]
> kernel_thread_helper+0x4/0x10
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797039]  [kthread+0x0/0xa0] ?
> kthread_worker_fn+0x190/0x190
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797039]  [<ffffffff810688a0>] ?
> kthread_worker_fn+0x190/0x190
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797042]
> [kernel_thread_helper+0x0/0x10] ? gs_change+0x13/0x13
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797042]  [<ffffffff8135eef0>] ?
> gs_change+0x13/0x13
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797044] ---[ end trace
> 852186af63bdb713 ]---
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797046]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.797047] pos is 1810403901 index out
> of bounds!!! in ath_update_survey_stats
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.862420] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.875272] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.875274] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.990646] ath: Chip reset failed
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.990651] ath: Unable to reset channel,
> reset status -22
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.990758] ath: Unable to set channel
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991392] ------------[ cut here ]-----
> -------
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991408] WARNING: at
> drivers/net/wireless/ath/ath9k/main.c:195 ath_update_survey_stats+0x233/0x260
> [ath9k]()
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991411] Hardware name: N53Jn
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991412] Modules linked in: netconsole
> af_packet snd_pcm_oss snd_mixer_oss cls_cgroup uvcvideo videodev
> v4l2_compat_ioctl32 cdc_phonet phonet bsd_comp ppp_deflate ppp_async
> crc_ccitt ppp_generic slhc cdc_acm rtc_cmos configs kvm_intel kvm atl1c
> ide_cd_mod ide_core pktcdvd pata_atiixp ipip tunnel4 ftdi_sio usbserial arc4
> ath9k mac80211 ath9k_common ath9k_hw ath cfg80211 rfkill 8139too mii fuse
> thermal ac tun usb_storage usb_libusual speedstep_lib cpufreq_powersave
> cpufreq_performance loop ipv6 snd_hda_codec_hdmi snd_hda_codec_realtek
> snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore
> snd_page_alloc battery power_supply coretemp cpufreq_ondemand acpi_cpufreq
> freq_table processor mperf i915 fbcon tileblit font bitblit softcursor
> drm_kms_helper drm intel_agp i2c_algo_bit button intel_gtt agpgart video
> thermal_sys hwmon ext4 jbd2 crc16 sr_mod cdrom ahci libahci xtkbd ohci_hcd
> uhci_hcd ehci_hcd xhci_hcd usbhid hid usbcore usb_common btrfs zlib_deflate
> libcrc32c
> Jan  7 00:21:33 401a0bf1 kernel: rc32c ext3 jbd mbcache synaptics_i2c
> i2c_core sermouse psmouse evdev pcips2 sd_mod crc_t10dif libata scsi_mod
> dm_mod unix [last unloaded: ath5k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991511] Pid: 777, comm: kworker/u:0
> Tainted: G        W    3.2.0 #1
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991513] Call Trace:
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991521]
> [warn_slowpath_common+0x7a/0xb0] warn_slowpath_common+0x7a/0xb0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991521]  [<ffffffff8104c9ba>]
> warn_slowpath_common+0x7a/0xb0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991525]
> [warn_slowpath_null+0x15/0x20] warn_slowpath_null+0x15/0x20
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991525]  [<ffffffff8104ca05>]
> warn_slowpath_null+0x15/0x20
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991530]
> [ath9k:ath_update_survey_stats+0x233/0x260]
> ath_update_survey_stats+0x233/0x260 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991530]  [<ffffffffa055e453>]
> ath_update_survey_stats+0x233/0x260 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991535]
> [ath9k:ath9k_config+0x115/0x780] ath9k_config+0x115/0x780 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991535]  [<ffffffffa0560a45>]
> ath9k_config+0x115/0x780 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991544]
> [mac80211:ieee80211_hw_config+0xe2/0x160] ieee80211_hw_config+0xe2/0x160
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991544]  [<ffffffffa051e272>]
> ieee80211_hw_config+0xe2/0x160 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991551]
> [mac80211:ieee80211_scan_work+0x243/0x5c0] ieee80211_scan_work+0x243/0x5c0
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991551]  [<ffffffffa0523a03>]
> ieee80211_scan_work+0x243/0x5c0 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991558]
> [mac80211:ieee80211_scan_work+0x0/0x5c0] ? ieee80211_scan_rx+0x1c0/0x1c0
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991558]  [<ffffffffa05237c0>] ?
> ieee80211_scan_rx+0x1c0/0x1c0 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991563]
> [process_one_work+0x111/0x390] process_one_work+0x111/0x390
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991563]  [<ffffffff81062eb1>]
> process_one_work+0x111/0x390
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991568]  [worker_thread+0x162/0x340]
> worker_thread+0x162/0x340
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991568]  [<ffffffff81063d12>]
> worker_thread+0x162/0x340
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991571]  [worker_thread+0x0/0x340] ?
> manage_workers.clone.26+0x240/0x240
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991571]  [<ffffffff81063bb0>] ?
> manage_workers.clone.26+0x240/0x240
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991575]  [kthread+0x96/0xa0]
> kthread+0x96/0xa0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991575]  [<ffffffff81068936>]
> kthread+0x96/0xa0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991581]
> [kernel_thread_helper+0x4/0x10] kernel_thread_helper+0x4/0x10
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991581]  [<ffffffff8135eef4>]
> kernel_thread_helper+0x4/0x10
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991585]  [kthread+0x0/0xa0] ?
> kthread_worker_fn+0x190/0x190
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991585]  [<ffffffff810688a0>] ?
> kthread_worker_fn+0x190/0x190
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991588]
> [kernel_thread_helper+0x0/0x10] ? gs_change+0x13/0x13
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991588]  [<ffffffff8135eef0>] ?
> gs_change+0x13/0x13
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991591] ---[ end trace
> 852186af63bdb714 ]---
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991592]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5162.991593] pos is 1810403901 index out
> of bounds!!! in ath_update_survey_stats
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.056922] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.069872] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.069875] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185503] ath: Chip reset failed
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185507] ath: Unable to reset channel,
> reset status -22
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185579] ath: Unable to set channel
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185584] ------------[ cut here ]-----
> -------
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185597] WARNING: at
> drivers/net/wireless/ath/ath9k/main.c:195 ath_update_survey_stats+0x233/0x260
> [ath9k]()
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185599] Hardware name: N53Jn
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185600] Modules linked in: netconsole
> af_packet snd_pcm_oss snd_mixer_oss cls_cgroup uvcvideo videodev
> v4l2_compat_ioctl32 cdc_phonet phonet bsd_comp ppp_deflate ppp_async
> crc_ccitt ppp_generic slhc cdc_acm rtc_cmos configs kvm_intel kvm atl1c
> ide_cd_mod ide_core pktcdvd pata_atiixp ipip tunnel4 ftdi_sio usbserial arc4
> ath9k mac80211 ath9k_common ath9k_hw ath cfg80211 rfkill 8139too mii fuse
> thermal ac tun usb_storage usb_libusual speedstep_lib cpufreq_powersave
> cpufreq_performance loop ipv6 snd_hda_codec_hdmi snd_hda_codec_realtek
> snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer snd soundcore
> snd_page_alloc battery power_supply coretemp cpufreq_ondemand acpi_cpufreq
> freq_table processor mperf i915 fbcon tileblit font bitblit softcursor
> drm_kms_helper drm intel_agp i2c_algo_bit button intel_gtt agpgart video
> thermal_sys hwmon ext4 jbd2 crc16 sr_mod cdrom ahci libahci xtkbd ohci_hcd
> uhci_hcd ehci_hcd xhci_hcd usbhid hid usbcore usb_common btrfs zlib_deflate
> libcrc32c
> Jan  7 00:21:33 401a0bf1 kernel: rc32c ext3 jbd mbcache synaptics_i2c
> i2c_core sermouse psmouse evdev pcips2 sd_mod crc_t10dif libata scsi_mod
> dm_mod unix [last unloaded: ath5k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185664] Pid: 777, comm: kworker/u:0
> Tainted: G        W    3.2.0 #1
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185666] Call Trace:
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185673]
> [warn_slowpath_common+0x7a/0xb0] warn_slowpath_common+0x7a/0xb0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185673]  [<ffffffff8104c9ba>]
> warn_slowpath_common+0x7a/0xb0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185675]
> [warn_slowpath_null+0x15/0x20] warn_slowpath_null+0x15/0x20
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185675]  [<ffffffff8104ca05>]
> warn_slowpath_null+0x15/0x20
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185678]
> [ath9k:ath_update_survey_stats+0x233/0x260]
> ath_update_survey_stats+0x233/0x260 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185678]  [<ffffffffa055e453>]
> ath_update_survey_stats+0x233/0x260 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185682]
> [ath9k:ath9k_config+0x115/0x780] ath9k_config+0x115/0x780 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185682]  [<ffffffffa0560a45>]
> ath9k_config+0x115/0x780 [ath9k]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185688]
> [mac80211:ieee80211_hw_config+0xe2/0x160] ieee80211_hw_config+0xe2/0x160
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185688]  [<ffffffffa051e272>]
> ieee80211_hw_config+0xe2/0x160 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185693]
> [mac80211:ieee80211_scan_work+0x243/0x5c0] ieee80211_scan_work+0x243/0x5c0
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185693]  [<ffffffffa0523a03>]
> ieee80211_scan_work+0x243/0x5c0 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185697]
> [mac80211:ieee80211_scan_work+0x0/0x5c0] ? ieee80211_scan_rx+0x1c0/0x1c0
> [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185697]  [<ffffffffa05237c0>] ?
> ieee80211_scan_rx+0x1c0/0x1c0 [mac80211]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185702]
> [process_one_work+0x111/0x390] process_one_work+0x111/0x390
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185702]  [<ffffffff81062eb1>]
> process_one_work+0x111/0x390
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185705]  [worker_thread+0x162/0x340]
> worker_thread+0x162/0x340
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185705]  [<ffffffff81063d12>]
> worker_thread+0x162/0x340
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185707]  [worker_thread+0x0/0x340] ?
> manage_workers.clone.26+0x240/0x240
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185707]  [<ffffffff81063bb0>] ?
> manage_workers.clone.26+0x240/0x240
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185710]  [kthread+0x96/0xa0]
> kthread+0x96/0xa0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185710]  [<ffffffff81068936>]
> kthread+0x96/0xa0
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185715]
> [kernel_thread_helper+0x4/0x10] kernel_thread_helper+0x4/0x10
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185715]  [<ffffffff8135eef4>]
> kernel_thread_helper+0x4/0x10
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185717]  [kthread+0x0/0xa0] ?
> kthread_worker_fn+0x190/0x190
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185717]  [<ffffffff810688a0>] ?
> kthread_worker_fn+0x190/0x190
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185719]
> [kernel_thread_helper+0x0/0x10] ? gs_change+0x13/0x13
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185719]  [<ffffffff8135eef0>] ?
> gs_change+0x13/0x13
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185721] ---[ end trace
> 852186af63bdb715 ]---
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185722]
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.185723] pos is 1810403901 index out
> of bounds!!! in ath_update_survey_stats
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.251027] ath: Failed to stop TX DMA,
> queues=0x10f!
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.263892] ath: DMA failed to stop in 10
> ms AR_CR=0xffffffff AR_DIAG_SW=0xffffffff DMADBG_7=0xffffffff
> Jan  7 00:21:33 401a0bf1 kernel: [ 5163.263894] ath: Could not stop RX, we
> could be confusing the DMA engine when we start RX up
> Jan  7 00:21:34 401a0bf1 kernel: [ 5163.379438] ath: Chip reset failed
> Jan  7 00:21:34 401a0bf1 kernel: [ 5163.379441] ath: Unable to reset channel,
> reset status -22
> Jan  7 00:21:34 401a0bf1 kernel: [ 5163.379510] ath: Unable to set channel
> Jan  7 00:21:34 401a0bf1 kernel: [ 5163.379519] ------------[ cut here ]-----
> -------
>
>
>



-- 
shafi
--
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