Public bug reported:
after tuning ipv4 for setting broadband tweaking parameters
with a new user different than "ubuntu"
runing from usb pendrive persistent (created from the live cd)
wireless network icon disapears
download speed reduced to 1Mbit
# adsl speed tweak 10Mbit
net.core.rmem_default = 511104
net.core.rmem_max = 1022208
net.core.wmem_default = 511104
net.core.wmem_max = 1022208
net.ipv4.tcp_wmem = 4096 127776 511104
net.ipv4.tcp_rmem = 4096 127776 1022208
net.ipv4.tcp_mem = 1022208 1022208 1022208
net.ipv4.tcp_rfc1337 = 1
net.ipv4.ip_no_pmtu_disc = 0
net.ipv4.tcp_sack = 1
net.ipv4.tcp_fack = 1
net.ipv4.tcp_window_scaling = 1
net.ipv4.tcp_timestamps = 1
net.ipv4.tcp_ecn = 0
net.ipv4.route.flush = 1
ProblemType: KernelOops
Annotation: Your system might become unstable now and might need to be
restarted.
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: yas 5401 F.... pulseaudio
gdm 5968 F.... pulseaudio
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf6ffc000 irq 21'
Mixer name : 'SigmaTel STAC9228'
Components : 'HDA:83847616,10280209,00100402'
Controls : 29
Simple ctrls : 19
Date: Sun Oct 25 14:02:25 2009
DistroRelease: Ubuntu 9.10
Failure: oops
LiveMediaBuild: Ubuntu 9.10 "Karmic Koala" - Release Candidate i386 (20091020.3)
MachineType: Dell Inc. XPS M1330
NonfreeKernelModules: nvidia
Package: linux-image-2.6.31-14-generic 2.6.31-14.48
ProcCmdLine: BOOT_IMAGE=/casper/vmlinuz noprompt cdrom-detect/try-usb=true
persistent file=/cdrom/preseed/hostname.seed boot=casper
initrd=/casper/initrd.lz quiet splash --
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
RelatedPackageVersions:
linux-backports-modules-2.6.31-14-generic N/A
linux-firmware 1.24
SourcePackage: linux
Tags: kernel-oops
Title: BUG: scheduling while atomic: swapper/0/0x10010000
Uname: Linux 2.6.31-14-generic i686
dmi.bios.date: 12/26/2008
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A15
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA15:bd12/26/2008:svnDellInc.:pnXPSM1330:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr:
dmi.product.name: XPS M1330
dmi.sys.vendor: Dell Inc.
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-kerneloops i386 kernel-oops
--
crash appears when executing sudo sysctl -p
https://bugs.launchpad.net/bugs/460416
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