netdev - Re: [Bugme-new] [Bug 11955] New: WARNING: at net/sched/sch_generic.c:219 dev

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Date:	Wed, 5 Nov 2008 01:02:47 -0800
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	netdev@...r.kernel.org
Cc:	bugme-daemon@...zilla.kernel.org, ralf.hildebrandt@...rite.de,
	stable@...nel.org
Subject: Re: [Bugme-new] [Bug 11955] New: WARNING: at
 net/sched/sch_generic.c:219 dev_watchdog+0x24b/0x25a()


(switched to email.  Please respond via emailed reply-to-all, not via the
bugzilla web interface).

On Wed,  5 Nov 2008 00:38:10 -0800 (PST) bugme-daemon@...zilla.kernel.org wrote:

> http://bugzilla.kernel.org/show_bug.cgi?id=11955
> 
>            Summary: WARNING: at net/sched/sch_generic.c:219
>                     dev_watchdog+0x24b/0x25a()
>            Product: Networking
>            Version: 2.5
>      KernelVersion: 2.6.27.4
>           Platform: All
>         OS/Version: Linux
>               Tree: Mainline
>             Status: NEW
>           Severity: normal
>           Priority: P1
>          Component: Other
>         AssignedTo: acme@...stprotocols.net
>         ReportedBy: ralf.hildebrandt@...rite.de
> 
> 
> Latest working kernel version: 2.6.27.3
> Earliest failing kernel version: 2.6.27.4

A regression in -stable.

> Distribution: Debian/testing
> Hardware Environment:
> Software Environment:
> Problem Description:
> 
> Steps to reproduce:
> 
> In dmesg I found:
> 
> [28739.530306] bnx2: eth0 NIC Copper Link is Up, 1000 Mbps full duplex, receive
> & transmit flow control ON
> [221569.991014] ------------[ cut here ]------------
> [221569.991064] WARNING: at net/sched/sch_generic.c:219
> dev_watchdog+0x24b/0x25a()
> [221569.991108] NETDEV WATCHDOG: eth0 (bnx2): transmit timed out
> [221569.991136] Modules linked in: xt_tcpudp nf_conntrack_ipv4 xt_state
> nf_conntrack iptable_filter ip_tables x_tables tg3 libphy bnx2 zlib_inflate
> psmouse crc32 thermal container button processor
> [221569.991245] Pid: 0, comm: swapper Not tainted 2.6.27.4 #1
> [221569.991273]  [<c012348a>] warn_slowpath+0x6f/0x96
> [221569.991302]  [<c0137685>] hrtimer_reprogram+0x71/0xa4
> [221569.991332]  [<c013772c>] enqueue_hrtimer+0x74/0x100
> [221569.991360]  [<c013807c>] hrtimer_start+0xa3/0x145
> [221569.991388]  [<c011d7e5>] hrtick_start_fair+0x131/0x147
> [221569.991417]  [<c011f06d>] try_to_wake_up+0xbd/0x182
> [221569.991444]  [<c01e5684>] strlcpy+0x11/0x3d
> [221569.991472]  [<c027e5b1>] netdev_drivername+0x2f/0x33
> [221569.991501]  [<c028b208>] dev_watchdog+0x24b/0x25a
> [221569.991529]  [<c011a59c>] __wake_up+0x32/0x42
> [221569.991556]  [<c012bb76>] run_timer_softirq+0x101/0x1b7
> [221569.991585]  [<c028afbd>] dev_watchdog+0x0/0x25a
> [221569.991612]  [<c0127f8a>] __do_softirq+0x87/0xfd
> [221569.991640]  [<c0127f03>] __do_softirq+0x0/0xfd
> [221569.991667]  [<c010666a>] do_softirq+0x7f/0xb1
> [221569.991695]  [<c0127b85>] irq_exit+0x66/0x7a
> [221569.991721]  [<c0111475>] smp_apic_timer_interrupt+0x57/0x82
> [221569.991752]  [<c01e7290>] trace_hardirqs_off_thunk+0xc/0x10
> [221569.991781]  [<c01044f1>] apic_timer_interrupt+0x2d/0x34
> [221569.991810]  [<c01098f9>] mwait_idle+0x36/0x3e
> [221569.991837]  [<c0102a95>] cpu_idle+0x60/0xab
> [221569.991864]  =======================
> [221569.991887] ---[ end trace f996508cd6a61637 ]---
> [221570.100912] bnx2: eth0 NIC Copper Link is Down
> 
> 

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