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Date: Tue, 14 Feb 2012 08:36:37 +0100 From: Eric Dumazet <eric.dumazet@...il.com> To: Josh Boyer <jwboyer@...il.com> Cc: Thomas Meyer <thomas@...3r.de>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, jcliburn@...il.com, chris.snook@...il.com, netdev <netdev@...r.kernel.org>, Jay Cliburn <jcliburn@...il.com> Subject: Re: NETDEV WATCHDOG: eth0 (atl1c): transmit queue 0 timed out Le lundi 13 février 2012 à 16:00 -0500, Josh Boyer a écrit : > On Sun, Feb 12, 2012 at 11:16 AM, Thomas Meyer <thomas@...3r.de> wrote: > > abrt_version: 2.0.7 > > cmdline: BOOT_IMAGE=/vmlinuz-3.2.3 root=/dev/sda2 rootfstype=ext4 rootflags=data=writeback ro quiet rhgb > > kernel: 3.2.3 > > reason: WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0x1e7/0x1f0() > > time: Sa 04 Feb 2012 15:31:22 CET > > > > backtrace: > > :WARNING: at net/sched/sch_generic.c:255 dev_watchdog+0x1e7/0x1f0() > > :Hardware name: Aspire 1810T > > :NETDEV WATCHDOG: eth0 (atl1c): transmit queue 0 timed out > > :Modules linked in: vfat fat fuse bluetooth nf_conntrack_ipv6 nf_defrag_ipv6 ip6t_REJECT ip6table_filter ip6_tables snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_hwdep uvcvideo snd_seq arc4 videodev usb_storage snd_seq_device v4l2_compat_ioctl32 snd_pcm snd_timer acer_wmi iwlwifi snd mac80211 sparse_keymap cfg80211 rfkill soundcore snd_page_alloc joydev wmi acerhdf pcspkr virtio_net virtio atl1c virtio_ring kvm_intel kvm uinput ipv6 [last unloaded: scsi_wait_scan] > > :Pid: 0, comm: swapper Not tainted 3.2.3 #5 > > :Call Trace: > > : <IRQ> [<ffffffff810322ca>] warn_slowpath_common+0x7a/0xb0 > > : [<ffffffff81018a18>] ? lapic_next_event+0x18/0x20 > > : [<ffffffff810323a1>] warn_slowpath_fmt+0x41/0x50 > > : [<ffffffff8104e9be>] ? hrtimer_interrupt+0xfe/0x1f0 > > : [<ffffffff8102c350>] ? wake_up_process+0x10/0x20 > > : [<ffffffff813e9397>] dev_watchdog+0x1e7/0x1f0 > > : [<ffffffff8103cfcf>] run_timer_softirq+0xef/0x210 > > : [<ffffffff813e91b0>] ? qdisc_reset+0x50/0x50 > > : [<ffffffff81037827>] __do_softirq+0x87/0x110 > > : [<ffffffff814945fa>] call_softirq+0x1a/0x30 > > : [<ffffffff810038bd>] do_softirq+0x4d/0x80 > > : [<ffffffff81037a8e>] irq_exit+0x7e/0xa0 > > : [<ffffffff8100375b>] do_IRQ+0x5b/0xd0 > > : [<ffffffff8148de29>] common_interrupt+0x69/0x69 > > : <EOI> [<ffffffff8124e115>] ? acpi_idle_enter_bm+0x1c0/0x1ff > > : [<ffffffff8124e110>] ? acpi_idle_enter_bm+0x1bb/0x1ff > > : [<ffffffff813a24b4>] ? menu_select+0xd4/0x390 > > : [<ffffffff813a150b>] cpuidle_idle_call+0x8b/0xe0 > > : [<ffffffff810011ed>] cpu_idle+0x9d/0xe0 > > : [<ffffffff8147d08e>] rest_init+0x62/0x64 > > : [<ffffffff81699b54>] start_kernel+0x358/0x363 > > : [<ffffffff81699322>] x86_64_start_reservations+0x132/0x136 > > : [<ffffffff81699416>] x86_64_start_kernel+0xf0/0xf7 > > : [<ffffffff81017e70>] ? acpi_suspend_lowlevel+0x1b0/0x1b0 > > We've seen this in Fedora for a long time now. As far as I know, nobody > really knows what is going on. > > https://bugzilla.redhat.com/show_bug.cgi?id=717211 > > (Also, you probably should have sent this to netdev.) CC netdev, Jay Cliburn <jcliburn@...il.com>, It seems this driver has partial support for two TX rings. (TX completion only drains the first ring) Please try following patch. diff --git a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c index b859124..1ff3c6d 100644 --- a/drivers/net/ethernet/atheros/atl1c/atl1c_main.c +++ b/drivers/net/ethernet/atheros/atl1c/atl1c_main.c @@ -2244,10 +2244,6 @@ static netdev_tx_t atl1c_xmit_frame(struct sk_buff *skb, dev_info(&adapter->pdev->dev, "tx locked\n"); return NETDEV_TX_LOCKED; } - if (skb->mark == 0x01) - type = atl1c_trans_high; - else - type = atl1c_trans_normal; if (atl1c_tpd_avail(adapter, type) < tpd_req) { /* no enough descriptor, just stop queue */ -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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