Public bug reported:
I was lucky enough to get a 4-socket Sandy Bridge (Xeon E5-4600 series)
box, but unfortunately the default install of 12.04 hangs during boot
while loading the sb_edac module. This is due to a bug in
drivers/edac/sb_edac.c, as of now not yet fixed in upstream. However I
sent the small fix: https://lkml.org/lkml/2012/5/31/371
I would suggest pulling this fix into the Ubuntu 3.2 tree as the
consequences are pretty severe: the box won't boot after install without
some manual monkeying to add a blacklist of the sb_edac module to the
modprobe config.
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-24-generic 3.2.0-24.39
ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16
Uname: Linux 3.2.0-24-generic x86_64
AlsaDevices:
total 0
crw-rw---T 1 root audio 116, 1 May 31 11:24 seq
crw-rw---T 1 root audio 116, 33 May 31 11:24 timer
AplayDevices: Error: [Errno 2] No such file or directory
ApportVersion: 2.0.1-0ubuntu8
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq',
'/dev/snd/timer'] failed with exit code 1:
CRDA: Error: [Errno 2] No such file or directory
CurrentDmesg:
[ 22.819778] ADDRCONF(NETDEV_CHANGE): eth2: link becomes ready
[ 33.190089] eth2: no IPv6 routers present
Date: Thu May 31 11:24:56 2012
HibernationDevice: RESUME=UUID=315b7072-43a2-484f-b6a4-07b75ed02ee6
InstallationMedia: Ubuntu-Server 12.04 LTS "Precise Pangolin" - Release amd64
(20120424.1)
PciMultimedia:
ProcFB: 0 VESA VGA
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-24-generic
root=UUID=a1f81222-4ae4-42e0-b4e6-1bb9fba3587a ro console=ttyS0,115200n1
console=tty0
RelatedPackageVersions:
linux-restricted-modules-3.2.0-24-generic N/A
linux-backports-modules-3.2.0-24-generic N/A
linux-firmware 1.79
RfKill: Error: [Errno 2] No such file or directory
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 04/18/2012
dmi.bios.version: 1.0.2
dmi.board.name: 04K5X5
dmi.board.version: A00
dmi.chassis.type: 23
dmi.modalias:
dmi:bvn:bvr1.0.2:bd04/18/2012:svn:pn:pvr:rvn:rn04K5X5:rvrA00:cvn:ct23:cvr:
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise staging
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https://bugs.launchpad.net/bugs/1007061
Title:
12.04 kernel hangs during boot (loading sb_edac) on 4-socket Sandy
Bridge
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