[Bug 554694] [NEW] Networking Hang - sch_generic.c:261

Sat Apr 3 16:44:23 UTC 2010

Public bug reported:

This problem was present in the previous release of Ubuntu, 9.10. But
with every update has slowly gotten worse.

It started with the networking just giving out under high load, and now
it seems to cut out when moving any file over 250MB.

I think it may be something to do with scheduling of packets when at
high speed, this is because it can do slow transfers over 24/48 hours
spanning many GB, but when it comes to trying to retrieve files from its
disks at high speeds, it dies. With it being a headless box, I have to
hard reset, and this is what is contained in the logs:

Apr  1 23:37:14 download-server kernel: [  718.011280] ------------[ cut here
]------------
Apr  1 23:37:14 download-server kernel: [  718.011305] WARNING: at
/build/buildd/linux-2.6.32/net/sched/sch_generic.c:261
dev_watchdog+0x262/0x270()
Apr  1 23:37:14 download-server kernel: [  718.011312] Hardware name:
EasyNote_MX37-U-004
Apr  1 23:37:14 download-server kernel: [  718.011318] NETDEV WATCHDOG: eth0
(sis190): transmit queue 0 timed out
Apr  1 23:37:14 download-server kernel: [  718.011323] Modules linked in: vmnet
parport_pc vsock vmci vmmon ppdev snd_hda_codec_realtek nfsd exportfs nfs lockd
nfs_acl auth_rpcgss sunrpc arc4 snd_hda_intel snd_hda_codec snd_hwdep ath5k
snd_pcm snd_timer fbcon tileblit font bitblit softcursor mac80211 ath snd lp
video output soundcore snd_page_alloc vga16fb vgastate sis190 cfg80211 shpchp
mii asus_laptop led_class sis_agp parport sata_sis
Apr  1 23:37:14 download-server kernel: [  718.011425] Pid: 0, comm: swapper
Not tainted 2.6.32-17-server #26-Ubuntu
Apr  1 23:37:14 download-server kernel: [  718.011430] Call Trace:
Apr  1 23:37:14 download-server kernel: [  718.011435]  <IRQ> 
[<ffffffff81066ceb>] warn_slowpath_common+0x7b/0xc0
Apr  1 23:37:14 download-server kernel: [  718.011456]  [<ffffffff81066d91>]
warn_slowpath_fmt+0x41/0x50
Apr  1 23:37:14 download-server kernel: [  718.011465]  [<ffffffff81489842>]
dev_watchdog+0x262/0x270
Apr  1 23:37:14 download-server kernel: [  718.011476]  [<ffffffff81080767>] ?
insert_work+0x77/0xc0
Apr  1 23:37:14 download-server kernel: [  718.011488]  [<ffffffff810397a9>] ?
default_spin_lock_flags+0x9/0x10
Apr  1 23:37:14 download-server kernel: [  718.011497]  [<ffffffff814895e0>] ?
dev_watchdog+0x0/0x270
Apr  1 23:37:14 download-server kernel: [  718.011505]  [<ffffffff81077417>]
run_timer_softirq+0x197/0x340
Apr  1 23:37:14 download-server kernel: [  718.011516]  [<ffffffff810943a0>] ?
tick_sched_timer+0x0/0xc0
Apr  1 23:37:14 download-server kernel: [  718.011525]  [<ffffffff8108f113>] ?
ktime_get+0x63/0xe0
Apr  1 23:37:14 download-server kernel: [  718.011534]  [<ffffffff8106e227>]
__do_softirq+0xb7/0x1e0
Apr  1 23:37:14 download-server kernel: [  718.011542]  [<ffffffff81093f8a>] ?
tick_program_event+0x2a/0x30
Apr  1 23:37:14 download-server kernel: [  718.011551]  [<ffffffff810142ec>]
call_softirq+0x1c/0x30
Apr  1 23:37:14 download-server kernel: [  718.011559]  [<ffffffff81015cb5>]
do_softirq+0x65/0xa0
Apr  1 23:37:14 download-server kernel: [  718.011566]  [<ffffffff8106e0c5>]
irq_exit+0x85/0x90
Apr  1 23:37:14 download-server kernel: [  718.011576]  [<ffffffff8155c021>]
smp_apic_timer_interrupt+0x71/0x9c
Apr  1 23:37:14 download-server kernel: [  718.011584]  [<ffffffff81013cb3>]
apic_timer_interrupt+0x13/0x20
Apr  1 23:37:14 download-server kernel: [  718.011589]  <EOI> 
[<ffffffff8130c7ce>] ? acpi_idle_enter_simple+0x117/0x14b
Apr  1 23:37:14 download-server kernel: [  718.011606]  [<ffffffff8130c7c7>] ?
acpi_idle_enter_simple+0x110/0x14b
Apr  1 23:37:14 download-server kernel: [  718.011617]  [<ffffffff81448c77>] ?
cpuidle_idle_call+0xa7/0x140
Apr  1 23:37:14 download-server kernel: [  718.011627]  [<ffffffff81011e63>] ?
cpu_idle+0xb3/0x110
Apr  1 23:37:14 download-server kernel: [  718.011636]  [<ffffffff8154ee91>] ?
start_secondary+0xa8/0xaa
Apr  1 23:37:14 download-server kernel: [  718.011643] ---[ end trace
62bcf8b592c12c43 ]---

There is a kernel bugzilla open for this: https://bugzilla.kernel.org/show_bug.cgi?id=15398
There doesn't seem to be any progress though.

The version of Ubuntu I am using is 10.04 BETA 2 x86_64.
It isn't just the 64bit kernel this happens with as it happened to me on the x86 kernel also.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: linux-image-2.6.32-19-server 2.6.32-19.28
Regression: Yes
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.32-19.28-server 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-server x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices: Error: [Errno 2] No such file or directory
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', '/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D0c', '/dev/snd/pcmC0D0p', '/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info: Error: [Errno 2] No such file or directory
Card0.Amixer.values: Error: [Errno 2] No such file or directory
Date: Sat Apr  3 17:38:28 2010
HibernationDevice: RESUME=/dev/sda2
InstallationMedia: Error: [Errno 13] Permission denied: '/var/log/installer/media-info'
Lsusb:
 Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Packard Bell BV EasyNote_MX37-U-004
ProcCmdLine: BOOT_IMAGE=/vmlinuz-2.6.32-19-server root=UUID=837814bc-e909-4696-a34a-9c30fb295b36 ro quiet splash
ProcEnviron:
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
RelatedPackageVersions: linux-firmware 1.33
RfKill:
 0: phy0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: linux
dmi.bios.date: 10/24/2007
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 208
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: T12C
dmi.board.vendor: PACKARD BELL BV
dmi.board.version: 1.0
dmi.chassis.type: 10
dmi.chassis.vendor: PACKARD BELL BV
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr208:bd10/24/2007:svnPackardBellBV:pnEasyNote_MX37-U-004:pvrPC10E00301:rvnPACKARDBELLBV:rnT12C:rvr1.0:cvnPACKARDBELLBV:ct10:cvr:
dmi.product.name: EasyNote_MX37-U-004
dmi.product.version: PC10E00301
dmi.sys.vendor: Packard Bell BV

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New

** Tags: amd64 apport-bug lucid needs-upstream-testing networking regression-release

-- 
Networking Hang - sch_generic.c:261
https://bugs.launchpad.net/bugs/554694
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