Public bug reported:
Since upgrading from 11.10 to 12.04, I've seen dozens of these in
dmesg/syslog. Other than filling up my logs, I haven't noticed any
misbehavior that I can attribute to these messages.
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284232] ------------[ cut here
]------------
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284265] WARNING: at
/build/buildd/linux-3.2.0/drivers/net/wireless/ath/ath9k/rc.c:697
ath_rc_get_highest_rix.isra.19+0x15c/0x1e0 [ath9k]()
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284273] Hardware name: MacBookPro3,1
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284277] Modules linked in: nls_utf8
hfsplus firewire_sbp2 pci_stub vboxpci(O) vboxneta
dp(O) vboxnetflt(O) vboxdrv(O) parport_pc ppdev dm_crypt rfcomm bnep bluetooth
snd_hda_codec_realtek joydev arc4 snd_hda_intel snd
_hda_codec snd_hwdep snd_pcm uvcvideo appletouch snd_seq_midi nvidia(P)
hid_apple ath9k videodev snd_rawmidi applesmc snd_seq_midi
_event snd_seq usbhid input_polldev hid v4l2_compat_ioctl32 snd_timer
snd_seq_device mac80211 ath9k_common binfmt_misc ath9k_hw at
h apple_bl snd cfg80211 mac_hid soundcore snd_page_alloc lp parport vesafb
usb_storage uas firewire_ohci firewire_core crc_itu_t v
ideo sky2
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284396] Pid: 4025, comm:
kworker/u:1 Tainted: P O 3.2.0-12-generic #20-Ubunt
u
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284402] Call Trace:
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284419] [<ffffffff8106620f>]
warn_slowpath_common+0x7f/0xc0
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284429] [<ffffffff8106626a>]
warn_slowpath_null+0x1a/0x20
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284445] [<ffffffffa0ea218c>]
ath_rc_get_highest_rix.isra.19+0x15c/0x1e0 [ath9k]
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284461] [<ffffffffa0ea228f>]
ath_get_rate+0x7f/0x370 [ath9k]
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284471] [<ffffffff81059571>] ?
find_busiest_group+0x171/0xbb0
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284515] [<ffffffffa015d266>]
rate_control_get_rate+0x96/0x170 [mac80211]
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284554] [<ffffffffa0167070>]
ieee80211_tx_h_rate_ctrl+0x130/0x490 [mac80211]
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284591] [<ffffffffa0169148>]
invoke_tx_handlers+0x1c8/0x260 [mac80211]
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284628] [<ffffffffa016932a>]
ieee80211_tx+0x5a/0xc0 [mac80211]
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284665] [<ffffffffa016941d>]
ieee80211_xmit+0x8d/0xd0 [mac80211]
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284702] [<ffffffffa016a45b>]
ieee80211_tx_skb+0x5b/0x70 [mac80211]
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284734] [<ffffffffa01545a6>]
ieee80211_send_nullfunc+0x56/0x70 [mac80211]
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284767] [<ffffffffa0155f1f>]
ieee80211_dynamic_ps_enable_work+0x27f/0x520 [mac80211]
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284801] [<ffffffffa0155ca0>] ?
ieee80211_dynamic_ps_disable_work+0x50/0x50 [mac80211]
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284812] [<ffffffff81083d5a>]
process_one_work+0x11a/0x480
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284822] [<ffffffff81084b04>]
worker_thread+0x164/0x370
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284831] [<ffffffff810849a0>] ?
manage_workers.isra.29+0x130/0x130
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284840] [<ffffffff8108935c>]
kthread+0x8c/0xa0
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284850] [<ffffffff8165dc74>]
kernel_thread_helper+0x4/0x10
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284859] [<ffffffff810892d0>] ?
flush_kthread_worker+0xa0/0xa0
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284867] [<ffffffff8165dc70>] ?
gs_change+0x13/0x13
Jan 31 14:14:23 steve-laptop kernel: [ 7398.284873] ---[ end trace
bbef71c76bc0da3b ]---
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-12-generic 3.2.0-12.20
ProcVersionSignature: Ubuntu 3.2.0-12.20-generic 3.2.2
Uname: Linux 3.2.0-12-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.91-0ubuntu1
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: steve 1923 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xdb500000 irq 46'
Mixer name : 'Realtek ALC889A'
Components : 'HDA:10ec0885,106b2c00,00100103'
Controls : 34
Simple ctrls : 20
Date: Tue Jan 31 15:05:03 2012
HibernationDevice: RESUME=UUID=efdcd1bc-2e1a-4a77-8ff8-e46a71b2a78c
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta amd64 (20100901.1)
MachineType: Apple Inc. MacBookPro3,1
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-12-generic
root=UUID=4b3d81ed-fb5d-4946-97c0-ec537e1bfa3f ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-12-generic N/A
linux-backports-modules-3.2.0-12-generic N/A
linux-firmware 1.68
RfKill:
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
SourcePackage: linux
UpgradeStatus: Upgraded to precise on 2012-01-26 (4 days ago)
dmi.bios.date: 03/05/08
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP31.88Z.0070.B07.0803051658
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Mac-F4238BC8
dmi.board.vendor: Apple Inc.
dmi.board.version: PVT
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 2
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F4238BC8
dmi.modalias:
dmi:bvnAppleInc.:bvrMBP31.88Z.0070.B07.0803051658:bd03/05/08:svnAppleInc.:pnMacBookPro3,1:pvr1.0:rvnAppleInc.:rnMac-F4238BC8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F4238BC8:
dmi.product.name: MacBookPro3,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise running-unity
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https://bugs.launchpad.net/bugs/924486
Title:
ath9k: repeated 'slowpath' warnings, stack dumps in dmesg
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