WARNING: at /build/buildd/linux-backports-modules-2.6.27-2.6.27/debian/build/build-generic/compat-wireless-2.6/net/mac80211/rx.c:2200 lbm_cw___lbm_cw_ieee80211_rx+0x19f/0x600 [lbm_cw_mac80211]()

[Carl Karsten]

crash report - not sure what caused it.

ProblemType: KernelOops
Architecture: i386
DistroRelease: Ubuntu 8.10
NonfreeKernelModules: ath_hal nvidia
Package: linux-image-2.6.27-7-generic 2.6.27-7.16
ProcCmdLine: User Name=UUID=270934eb-b4c5-4f17-87e4-8ebea9d98ed3 ro vga=6 apic=debug debug crashkernel=384M-2G:64M@16M,2G-:128M@16M
ProcVersionSignature: Ubuntu 2.6.27-9.19-generic
SourcePackage: linux
Title: WARNING: at /build/buildd/linux-backports-modules-2.6.27-2.6.27/debian/build/build-generic/compat-wireless-2.6/net/mac80211/rx.c:2200 lbm_cw___lbm_cw_ieee80211_rx+0x19f/0x600 [lbm_cw_mac80211]()

[Joey Stanford (joey)]

I get this as well and it causes my entire system to lockup.

Linux gametime 2.6.27-9-generic #1 SMP Thu Nov 20 22:15:32 UTC 2008 x86_64 GNU/Linux

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=8.10
DISTRIB_CODENAME=intrepid
DISTRIB_DESCRIPTION="Ubuntu 8.1

Dec 13 11:26:44 gametime kernel: [ 445.775638] ------------[ cut here ]------------
Dec 13 11:26:44 gametime kernel: [ 445.775644] WARNING: at /build/buildd/linux-backports-modules-2.6.27-2.6.27/debian/build/build-generic/compat-wireless-2.6/net/mac80211/rx.c:2200 __lbm_cw_ieee80211_rx+0x1c9/0x630 [lbm_cw_mac80211]()
Dec 13 11:26:44 gametime kernel: [ 445.775647] Modules linked in: cdc_ether usbnet mii aes_x86_64 aes_generic ecryptfs af_packet binfmt_misc rfcomm sco bnep l2cap bluetooth ipt_MASQUERADE iptable_nat nf_nat nf_conntrack_ipv4 xt_state nf_conntrack ipt_REJECT xt_tcpudp bridge stp kvm_intel kvm ppdev ipv6 acpi_cpufreq cpufreq_powersave cpufreq_conservative cpufreq_stats cpufreq_userspace cpufreq_ondemand freq_table video output wmi sbs container sbshc pci_slot battery microcode iptable_filter ip_tables x_tables dm_crypt ac parport_pc lp parport snd_hda_intel snd_pcm_oss ath_pci wlan ath_hal(P) snd_mixer_oss arc4 snd_pcm ecb crypto_blkcipher snd_seq_dummy serio_raw snd_seq_oss ath5k lbm_cw_mac80211 psmouse snd_seq_midi snd_rawmidi dm_multipath appledisplay evdev scsi_dh joydev pcspkr iTCO_wdt iTCO_vendor_support nvidia(P) snd_seq_midi_event snd_seq lbm_cw_cfg80211 snd_timer i2c_core led_class snd_seq_device heci button snd soundcore shpchp intel_agp snd_page_alloc pci_hotplug ext3 jbd mbcache sd_mod crc_t10dif sr_mo
Dec 13 11:26:44 gametime kernel: cdrom sg sbp2 usbhid hid ata_generic ata_piix ohci1394 ieee1394 pata_acpi pata_marvell libata scsi_mod dock ehci_hcd uhci_hcd usbcore e1000e dm_mirror dm_log dm_snapshot dm_mod thermal processor fan fbcon tileblit font bitblit softcursor fuse
Dec 13 11:26:44 gametime kernel: [ 445.775727] Pid: 0, comm: swapper Tainted: P 2.6.27-9-generic #1
Dec 13 11:26:44 gametime kernel: [ 445.775729]
Dec 13 11:26:44 gametime kernel: [ 445.775730] Call Trace:
Dec 13 11:26:44 gametime kernel: [ 445.775731] <IRQ> [<ffffffff8024e9b4>] warn_on_slowpath+0x64/0x90
Dec 13 11:26:44 gametime kernel: [ 445.775752] [<ffffffffa00a0b37>] ? usb_hcd_submit_urb+0x87/0x1b0 [usbcore]
Dec 13 11:26:44 gametime kernel: [ 445.775756] [<ffffffff8023e823>] ? __enqueue_entity+0x93/0xa0
Dec 13 11:26:44 gametime kernel: [ 445.775758] [<ffffffff8023fd09>] ? enqueue_entity+0xd9/0x260
Dec 13 11:26:44 gametime kernel: [ 445.775770] [<ffffffffa0a934d9>] __lbm_cw_ieee80211_rx+0x1c9/0x630 [lbm_cw_mac80211]
Dec 13 11:26:44 gametime kernel: [ 445.775773] [<ffffffff80245e4d>] ? resched_task+0x2d/0x90
Dec 13 11:26:44 gametime kernel: [ 445.775780] [<ffffffffa0ac6698>] ath5k_tasklet_rx+0x338/0x5b0 [ath5k]
Dec 13 11:26:44 gametime kernel: [ 445.775783] [<ffffffff802546c6>] tasklet_action+0x86/0x110
Dec 13 11:26:44 gametime kernel: [ 445.775786] [<ffffffff80254d8c>] __do_softirq+0x8c/0x100
Dec 13 11:26:44 gametime kernel: [ 445.775789] [<ffffffff80227dda>] ? ack_apic_level+0x4a/0x140
Dec 13 11:26:44 gametime kernel: [ 445.775792] [<ffffffff8021417c>] call_softirq...

[Leann Ogasawara (leannogasawara)]

Hi Guys,

Sorry for the delayed response. Seeing as you've both tested linux-backports-modules, I'd be curious if you'd be willing to test the latest upstream compat-wireless stack? I wrote up the following wiki which I hope will help - https://wiki.ubuntu.com/KernelTeam/LinuxWireless . Ideally, we want to try and confirm if this issue exists upstream and notify the upstream developers asap. Let me know if you have any questions. Thanks.

[johnnynyquist (johnnynyquist)]

I installed the compat-wireless 2009-01-04 source from wireless.kernel.org and i've gotten three similar crash reports in the first hour of operation. They do not appear to affect my wireless connection. I'm attaching today's /var/log/messages. I installed the 2009-01-04 build around 3:04 AM, so you can see two crashes before that time and several after.

I'm using the ath5k module for an AR242x PCI card in my Lenovo X200 laptop.

With regards to system lockups, i can only say that my system locks up occasionally on resume from suspend, but this crash report appears with much higher frequency.

[johnnynyquist (johnnynyquist)]

This appears to be similar to Bug #290991 (https://bugs.launchpad.net/bugs/290991)

[Leann Ogasawara (leannogasawara)]

Hi Johnnyquist,

Would you be willing to do one more round of testing with the most recent usptream compat-wireless stack? The reason I ask is I've noticed some mac80211 and ath5k patches go in since you tested on the 4th. Thanks.

[High Master T (high-master-t)]

I get a similar problem. Little later of resume my laptop happened it (ksoftirqd/0 99% cpu). In dmesg:

[ 8680.578320] ------------[ cut here ]------------
[ 8680.578331] WARNING: at /build/buildd/linux-backports-modules-2.6.27-2.6.27/debian/build/build-generic/compat-wireless-2.6/net/mac80211/rx.c:2200 __lbm_cw_ieee80211_rx+0x19f/0x600 [lbm_cw_mac80211]()
[ 8680.578334] Modules linked in: ipv6 af_packet binfmt_misc ppdev vmnet vmblock vmci vmmon acpi_cpufreq cpufreq_ondemand cpufreq_powersave cpufreq_userspace cpufreq_stats cpufreq_conservative freq_table pci_slot sbs sbshc container wmi iptable_filter ip_tables x_tables arc4 ecb crypto_blkcipher ath5k lbm_cw_mac80211 lbm_cw_cfg80211 parport_pc lp parport joydev snd_hda_intel snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy evdev uvcvideo pcspkr psmouse serio_raw compat_ioctl32 videodev v4l1_compat snd_seq_oss snd_seq_midi video fglrx(P) output snd_rawmidi snd_seq_midi_event snd_seq battery ac snd_timer snd_seq_device snd asus_laptop led_class soundcore button snd_page_alloc sis190 mii shpchp pci_hotplug sis_agp agpgart ext3 jbd mbcache sd_mod crc_t10dif usbhid hid usb_storage sr_mod cdrom sg sata_sis ata_generic libusual pata_acpi pata_sis ohci_hcd ehci_hcd libata usbcore scsi_mod dock thermal processor fan fbcon tileblit font bitblit softcursor fuse
[ 8680.578425] Pid: 4, comm: ksoftirqd/0 Tainted: P 2.6.27-9-generic #1
[ 8680.578429] [<c037c4b6>] ? printk+0x1d/0x1f
[ 8680.578438] [<c0131de9>] warn_on_slowpath+0x59/0x90
[ 8680.578447] [<c013c7a4>] ? del_timer+0x54/0x60
[ 8680.578453] [<c0137418>] ? raise_softirq_irqoff+0x8/0x70
[ 8680.578458] [<f88be781>] ? __scsi_done+0x41/0x50 [scsi_mod]
[ 8680.578478] [<f88be7ab>] ? scsi_done+0x1b/0x30 [scsi_mod]
[ 8680.578490] [<f8893417>] ? ata_scsi_translate+0xf7/0x150 [libata]
[ 8680.578507] [<c024ae8e>] ? cfq_dispatch_requests+0xe/0x260
[ 8680.578515] [<f88be790>] ? scsi_done+0x0/0x30 [scsi_mod]
[ 8680.578526] [<c037e6dd>] ? _spin_lock+0xd/0x10
[ 8680.578531] [<c024e580>] ? kobject_put+0x20/0x50
[ 8680.578536] [<f88bea06>] ? scsi_dispatch_cmd+0xf6/0x280 [scsi_mod]
[ 8680.578548] [<f8c549af>] __lbm_cw_ieee80211_rx+0x19f/0x600 [lbm_cw_mac80211]
[ 8680.578560] [<f88c5ed7>] ? scsi_request_fn+0xa7/0x440 [scsi_mod]
[ 8680.578574] [<c02eae1c>] ? skb_put+0xc/0xa0
[ 8680.578580] [<f8c2ac83>] ath5k_tasklet_rx+0x2e3/0x550 [ath5k]
[ 8680.578588] [<c0137258>] tasklet_action+0x78/0x100
[ 8680.578592] [<c0137682>] __do_softirq+0x92/0x120
[ 8680.578595] [<c013776d>] do_softirq+0x5d/0x60
[ 8680.578598] [<c0137802>] ksoftirqd+0x92/0x120
[ 8680.578601] [<c0137770>] ? ksoftirqd+0x0/0x120
[ 8680.578605] [<c0147141>] kthread+0x41/0x80
[ 8680.578609] [<c0147100>] ? kthread+0x0/0x80
[ 8680.578613] [<c0105297>] kernel_thread_helper+0x7/0x10
[ 8680.578618] =======================
[ 8680.578620] ---[ end trace 79ed1c5ac603e4a1 ]---

Kernel: 2.6.27-9-generic
lspci: 02:00.0 Ethernet controller: Atheros Communications Inc. AR242x 802.11abg Wireless PCI Express Adapter (rev 01)
Driver: http://wireless.kernel.org/download/compat-wireless-2.6

[kernel-janitor (kernel-janitor)]

Hi Carl,

This bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? Can you try with the latest development release of Ubuntu? ISO CD images are available from http://cdimage.ubuntu.com/releases/karmic .

If it remains an issue, could you run the following command from a Terminal (Applications->Accessories->Terminal). It will automatically gather and attach updated debug information to this report.

apport-collect -p linux 303017

Also, if you could test the latest upstream kernel available that would be great. It will allow additional upstream developers to examine the issue. Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Once you've tested the upstream kernel, please remove the 'needs-upstream-testing' tag. This can be done by clicking on the yellow pencil icon next to the tag located at the bottom of the bug description and deleting the 'needs-upstream-testing' text. Please let us know your results.

Thanks in advance.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]

[Jeremy Foshee (jeremyfoshee)]

This bug report was marked as Incomplete and has not had any updated comments for quite some time. As a result this bug is being closed. Please reopen if this is still an issue in the current Ubuntu release http://www.ubuntu.com/getubuntu/download . Also, please be sure to provide any requested information that may have been missing. To reopen the bug, click on the current status under the Status column and change the status back to "New". Thanks.

[This is an automated message. Apologies if it has reached you inappropriately; please just reply to this message indicating so.]