netdev - Re: Ooops with 2.6.39

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Message-ID: <1306722856.30021.28.camel@edumazet-laptop>
Date:	Mon, 30 May 2011 04:34:16 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Robert Goldner <robert@...79.de>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: Ooops with 2.6.39

Le dimanche 29 mai 2011 à 15:45 -0700, Andrew Morton a écrit :
> (cc netdev)
> 
> On Sun, 29 May 2011 07:56:35 +0200 Robert Goldner <robert@...79.de> wrote:

> > Hi,
> > 
> > sometimes I got an Ooops while the system is starting:
> > 
> > [   15.824365] ------------[ cut here ]------------
> > [   15.824616] WARNING: at net/sched/sch_generic.c:256
> > dev_watchdog+0x1d6/0x1e0()
> > [   15.824868] Hardware name:
> > [   15.825098] NETDEV WATCHDOG: eth0 (sis900): transmit queue 0 timed out
> > [   15.825333] Modules linked in: coretemp qt1010 af9013 dvb_pll mt2060
> > dvb_usb_nova_t_usb2 dvb_usb_dibusb_common dib3000mc psmouse
> > dibx000_common pcspkr dvb_usb_af9015 ohci_hcd
> > [   15.829066] Pid: 1462, comm: startpar Not tainted 2.6.39-agathe #2
> > [   15.829301] Call Trace:
> > [   15.829534]  [<c103c79d>] warn_slowpath_common+0x6d/0xa0
> > [   15.829948]  [<c13ff216>] ? dev_watchdog+0x1d6/0x1e0
> > [   15.830183]  [<c13ff216>] ? dev_watchdog+0x1d6/0x1e0
> > [   15.830417]  [<c103c84e>] warn_slowpath_fmt+0x2e/0x30
> > [   15.830828]  [<c13ff216>] dev_watchdog+0x1d6/0x1e0
> > [   15.831241]  [<c104ecc8>] ? __queue_work+0xb8/0x300
> > [   15.831476]  [<c10048a8>] ? handle_irq+0x18/0x90
> > [   15.831889]  [<c1041bc7>] ? irq_exit+0x37/0x80
> > [   15.832127]  [<c10044f6>] ? do_IRQ+0x46/0xb0
> > [   15.832541]  [<c1080189>] ? rcu_start_gp+0x149/0x1d0
> > [   15.832954]  [<c1046a24>] run_timer_softirq+0xe4/0x200
> > [   15.833189]  [<c1041900>] ? local_bh_enable+0x80/0x80
> > [   15.833426]  [<c151ade9>] ? common_interrupt+0x29/0x30
> > [   15.833838]  [<c13ff040>] ? qdisc_reset+0x40/0x40
> > [   15.834250]  [<c1041978>] __do_softirq+0x78/0x100
> > [   15.834841]  [<c1041900>] ? local_bh_enable+0x80/0x80
> > [   15.835097]  <IRQ>  [<c1041bfe>] ? irq_exit+0x6e/0x80
> > [   15.835188]  [<c1019dc6>] ? smp_apic_timer_interrupt+0x56/0x90
> > [   15.835247]  [<c151a46a>] ? apic_timer_interrupt+0x2a/0x30
> > [   15.835305]  [<c151a168>] ? resume_userspace+0x14/0x14
> > [   15.835360] ---[ end trace 519c5412e162986a ]---
> > 
> > 
> > The level of pain is very low, because the system is still running very
> > well.
> > 
> > If somebody needs some more information, please let me know.
> > 
> 
> Which net device driver is being used?

Seems to be sis900

Maybe its TX_TIMEOUT is too low.

Robert, is your NIC in full or half duplex mode ?



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