Messages in this thread | | | Date | Fri, 8 Jun 2012 12:26:20 -0400 | Subject | Re: 3.5.0+ - Linus GIT - WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0xeb/0x15f() | From | Miles Lane <> |
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On Thu, Jun 7, 2012 at 2:39 AM, Eric Dumazet <eric.dumazet@gmail.com> wrote: > On Thu, 2012-06-07 at 02:16 -0400, Miles Lane wrote: >> WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0xeb/0x15f() >> Hardware name: UL50VT >> NETDEV WATCHDOG: eth0 (atl1c): transmit queue 0 timed out >> Modules linked in: hfsplus hfs vfat msdos fat snd_hrtimer ipv6 >> snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep >> snd_pcm_oss snd_seq_dummy snd_mixer_oss uvcvideo videobuf2_core >> snd_pcm videodev snd_seq_oss snd_seq_midi snd_rawmidi media >> snd_seq_midi_event acpi_cpufreq videobuf2_vmalloc videobuf2_memops >> snd_seq iwlwifi snd_timer snd_seq_device asus_laptop mac80211 >> sparse_keymap snd cfg80211 coretemp soundcore psmouse snd_page_alloc >> rtc_cmos mperf processor evdev rfkill battery led_class input_polldev >> ac i915 nouveau sr_mod cdrom sd_mod ehci_hcd atl1c uhci_hcd intel_agp >> ttm usbcore intel_gtt usb_common drm_kms_helper thermal video >> thermal_sys hwmon button >> Pid: 3025, comm: hud-service Not tainted 3.5.0-rc1+ #128 >> Call Trace: >> <IRQ> [<ffffffff8102d42f>] warn_slowpath_common+0x7e/0x97 >> [<ffffffff8102d4dc>] warn_slowpath_fmt+0x41/0x43 >> [<ffffffff81360f1c>] dev_watchdog+0xeb/0x15f >> [<ffffffff8103af44>] run_timer_softirq+0x20e/0x356 >> [<ffffffff8103ae7e>] ? run_timer_softirq+0x148/0x356 >> [<ffffffff81360e31>] ? netif_tx_unlock+0x57/0x57 >> [<ffffffff810344f8>] __do_softirq+0x103/0x239 >> [<ffffffff8107122a>] ? clockevents_program_event+0x9c/0xb9 >> [<ffffffff8140a4cc>] call_softirq+0x1c/0x30 >> [<ffffffff81003bb9>] do_softirq+0x37/0x82 >> [<ffffffff81034888>] irq_exit+0x4c/0xb1 >> [<ffffffff8101ba71>] smp_apic_timer_interrupt+0x76/0x84 >> [<ffffffff81409adc>] apic_timer_interrupt+0x6c/0x80 >> <EOI> [<ffffffff81105161>] ? fget_raw_light+0x4c/0x7d >> [<ffffffff81105161>] ? fget_raw_light+0x4c/0x7d >> [<ffffffff8111153b>] sys_fcntl+0x23/0x53b >> [<ffffffff81004b68>] ? print_context_stack+0x44/0xb1 >> [<ffffffff81408fe2>] system_call_fastpath+0x16/0x1b >> ---[ end trace c1f284d9c873031d ]--- > > CC netdev and Huang Xiong > > Atheros drivers are known to have buggy tx completion, its incredible... > > You could try following patch, not a 'perfect' solution, but a fix. > > Thanks > > diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c > index 9cc1570..31224f3 100644 > --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c > +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c > @@ -1551,10 +1551,12 @@ static bool atl1c_clean_tx_irq(struct atl1c_adapter *adapter, > atomic_set(&tpd_ring->next_to_clean, next_to_clean); > } > > + spin_lock(&adapter->tx_lock); > if (netif_queue_stopped(adapter->netdev) && > netif_carrier_ok(adapter->netdev)) { > netif_wake_queue(adapter->netdev); > } > + spin_unlock(&adapter->tx_lock); > > return true; > } > > > >
I tested this patch as well and got the following (identical to the warning with the other patch you sent):
[ 704.534177] atl1c 0000:04:00.0: atl1c: eth0 NIC Link is Up<100 Mbps Full Duplex> [ 714.346649] ------------[ cut here ]------------ [ 714.346670] WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0xeb/0x15f() [ 714.346674] Hardware name: UL50VT [ 714.346679] NETDEV WATCHDOG: eth0 (atl1c): transmit queue 0 timed out [ 714.346854] Modules linked in: snd_hrtimer ipv6 snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep snd_pcm_oss snd_mixer_oss snd_pcm snd_seq_dummy snd_seq_oss snd_seq_midi snd_rawmidi snd_seq_midi_event acpi_cpufreq snd_seq iwlwifi uvcvideo snd_timer videobuf2_core snd_seq_device mac80211 videodev snd media videobuf2_vmalloc videobuf2_memops coretemp psmouse cfg80211 soundcore snd_page_alloc rtc_cmos ac mperf battery processor asus_laptop evdev sparse_keymap rfkill led_class input_polldev acpi_call(O) i915 nouveau ttm fbcon tileblit font bitblit softcursor drm_kms_helper drm fb fbdev intel_agp sr_mod cdrom ehci_hcd uhci_hcd sd_mod cfbcopyarea i2c_algo_bit intel_gtt agpgart i2c_core mxm_wmi atl1c usbcore cfbimgblt cfbfillrect usb_common thermal video backlight thermal_sys hwmon wmi button [ 714.346864] Pid: 3230, comm: unity-panel-ser Tainted: G O 3.5.0-rc1+ #132 [ 714.346867] Call Trace: [ 714.346882] <IRQ> [<ffffffff8102d42f>] warn_slowpath_common+0x7e/0x97 [ 714.346890] [<ffffffff8102d4dc>] warn_slowpath_fmt+0x41/0x43 [ 714.346914] [<ffffffff81302028>] dev_watchdog+0xeb/0x15f [ 714.346923] [<ffffffff8103af44>] run_timer_softirq+0x20e/0x356 [ 714.346930] [<ffffffff8103ae7e>] ? run_timer_softirq+0x148/0x356 [ 714.346938] [<ffffffff81301f3d>] ? netif_tx_unlock+0x57/0x57 [ 714.346946] [<ffffffff810344f8>] __do_softirq+0x103/0x239 [ 714.346954] [<ffffffff81071246>] ? clockevents_program_event+0x9c/0xb9 [ 714.346964] [<ffffffff813ab38c>] call_softirq+0x1c/0x30 [ 714.346971] [<ffffffff81003bb9>] do_softirq+0x37/0x82 [ 714.346977] [<ffffffff81034888>] irq_exit+0x4c/0xb1 [ 714.346987] [<ffffffff8101ba71>] smp_apic_timer_interrupt+0x76/0x84 [ 714.346994] [<ffffffff813aa99c>] apic_timer_interrupt+0x6c/0x80 [ 714.347006] <EOI> [<ffffffff813a9ec7>] ? sysret_check+0x1b/0x56 [ 714.347011] ---[ end trace 8a2db16274f46b16 ]--- -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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