Public bug reported:
If you create an i386 container on an amd64 host and install qemu-user-
static on the container, it will run "update-binfmts --import qemu-
x86_64" and since binfmt doesn't seem to be containerized, it will
affect the host causing all binary executions to go through /usr/bin
/qemu-x86_64-static, which in turn crashes like this:
salgado@delgadito:~$ ls
ERROR: ioctl(SNDCTL_DSP_MAPINBUF): target=0x80085013 host=0x80105013
ERROR: ioctl(SNDCTL_DSP_MAPOUTBUF): target=0x80085014 host=0x80105014
qemu: Unsupported syscall: 202
qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Because of that you won't be able to execute anything on the host, so
the only way to solve that is to restart or run the following in the
container:
update-binfmts --package qemu-user-static --remove qemu-x86_64
/usr/bin/qemu-x86_64-static
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: linux-image-3.2.0-9-generic 3.2.0-9.16
ProcVersionSignature: Ubuntu 3.2.0-9.16-generic 3.2.1
Uname: Linux 3.2.0-9-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.90-0ubuntu2
Architecture: amd64
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: salgado 2876 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'PCH'/'HDA Intel PCH at 0xf1620000 irq 49'
Mixer name : 'Intel CougarPoint HDMI'
Components : 'HDA:14f1506e,17aa21d2,00100002
HDA:80862805,80860101,00100000'
Controls : 23
Simple ctrls : 8
Card29.Amixer.info:
Card hw:29 'ThinkPadEC'/'ThinkPad Console Audio Control at EC reg 0x30, fw
unknown'
Mixer name : 'ThinkPad EC (unknown)'
Components : ''
Controls : 1
Simple ctrls : 1
Card29.Amixer.values:
Simple mixer control 'Console',0
Capabilities: pswitch pswitch-joined penum
Playback channels: Mono
Mono: Playback [on]
Date: Tue Jan 17 10:56:49 2012
HibernationDevice: RESUME=UUID=ce6e1bad-83b4-490c-a732-f15d400083f3
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
MachineType: LENOVO 4170CTO
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-9-generic
root=UUID=6c8b89f7-f0ef-440b-bea8-ccb5f8d5b8a3 ro quiet splash
i915.i915_enable_rc6=1 i915.lvds_downclock=1 vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-3.2.0-9-generic N/A
linux-backports-modules-3.2.0-9-generic N/A
linux-firmware 1.67
SourcePackage: linux
StagingDrivers: mei
UpgradeStatus: Upgraded to precise on 2012-01-17 (0 days ago)
dmi.bios.date: 11/01/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 8CET50WW (1.30 )
dmi.board.asset.tag: Not Available
dmi.board.name: 4170CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr8CET50WW(1.30):bd11/01/2011:svnLENOVO:pn4170CTO:pvrThinkPadT420s:rvnLENOVO:rn4170CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 4170CTO
dmi.product.version: ThinkPad T420s
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise running-unity staging
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https://bugs.launchpad.net/bugs/917660
Title:
Installing qemu-user-static on an i386 lxc container will hose your
amd64 host
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