Networking Hang - sch_generic.c:261
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
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/
dev_watchdog+
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_
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>
[<ffffffff81066
Apr 1 23:37:14 download-server kernel: [ 718.011456] [<ffffffff81066
warn_slowpath_
Apr 1 23:37:14 download-server kernel: [ 718.011465] [<ffffffff81489
dev_watchdog+
Apr 1 23:37:14 download-server kernel: [ 718.011476] [<ffffffff81080
insert_
Apr 1 23:37:14 download-server kernel: [ 718.011488] [<ffffffff81039
default_
Apr 1 23:37:14 download-server kernel: [ 718.011497] [<ffffffff81489
dev_watchdog+
Apr 1 23:37:14 download-server kernel: [ 718.011505] [<ffffffff81077
run_timer_
Apr 1 23:37:14 download-server kernel: [ 718.011516] [<ffffffff81094
tick_sched_
Apr 1 23:37:14 download-server kernel: [ 718.011525] [<ffffffff8108f
ktime_get+0x63/0xe0
Apr 1 23:37:14 download-server kernel: [ 718.011534] [<ffffffff8106e
__do_softirq+
Apr 1 23:37:14 download-server kernel: [ 718.011542] [<ffffffff81093
tick_program_
Apr 1 23:37:14 download-server kernel: [ 718.011551] [<ffffffff81014
call_softirq+
Apr 1 23:37:14 download-server kernel: [ 718.011559] [<ffffffff81015
do_softirq+
Apr 1 23:37:14 download-server kernel: [ 718.011566] [<ffffffff8106e
irq_exit+0x85/0x90
Apr 1 23:37:14 download-server kernel: [ 718.011576] [<ffffffff8155c
smp_apic_
Apr 1 23:37:14 download-server kernel: [ 718.011584] [<ffffffff81013
apic_timer_
Apr 1 23:37:14 download-server kernel: [ 718.011589] <EOI>
[<ffffffff8130c
Apr 1 23:37:14 download-server kernel: [ 718.011606] [<ffffffff8130c
acpi_idle_
Apr 1 23:37:14 download-server kernel: [ 718.011617] [<ffffffff81448
cpuidle_
Apr 1 23:37:14 download-server kernel: [ 718.011627] [<ffffffff81011
cpu_idle+0xb3/0x110
Apr 1 23:37:14 download-server kernel: [ 718.011636] [<ffffffff8154e
start_secondary
Apr 1 23:37:14 download-server kernel: [ 718.011643] ---[ end trace
62bcf8b592c12c43 ]---
There is a kernel bugzilla open for this: https:/
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-
Regression: Yes
Reproducible: Yes
ProcVersionSign
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/
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info: Error: [Errno 2] No such file or directory
Card0.Amixer.
Date: Sat Apr 3 17:38:28 2010
HibernationDevice: RESUME=/dev/sda2
InstallationMedia: Error: [Errno 13] Permission denied: '/var/log/
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=
ProcEnviron:
LANG=en_GB.UTF-8
SHELL=/bin/bash
RelatedPackageV
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.
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:bvnAmerican
dmi.product.name: EasyNote_MX37-U-004
dmi.product.
dmi.sys.vendor: Packard Bell BV
I've been exploring what makes the networking error occur, and I've noticed that it happens more when transferring files via either AFP using netatalk or NFSv4 using the nfs-kernel-server package. The speeds when copying are incredible, even over wireless, which is why I try to use them.
When I copy over Samba, it is less frequent and tends to happen when it is very big files, such as BlueRay images of around 10-15GB. But otherwise it is quite stable. The only difference is, the speeds are a LOT slower, almost half the speed.