** Tags added: kernel-reviewed ** Tags removed: kernel-needs-review -- kernel NULL pointer in -virtual (-server) kernel https://bugs.launchpad.net/bugs/546458 You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU.
Status in QEMU: Invalid Status in “linux” package in Ubuntu: Triaged Status in “qemu-kvm” package in Ubuntu: Confirmed Status in “linux” package in Fedora: Unknown Bug description: When stress testing eucalyptus we have run into this oops inside VMs [ 82.907577] BUG: unable to handle kernel NULL pointer dereference at 0000000000000358^M [ 82.908842] IP: [<ffffffff813982e8>] sym_int_sir+0x2a8/0x750^M [ 82.909773] PGD 0 ^M [ 82.910110] Thread overran stack, or stack corrupted^M [ 82.910870] Oops: 0000 [#1] SMP ^M [ 82.911407] last sysfs file: /sys/devices/virtual/block/ram9/uevent^M We launched 18 instances, 2 of them failed this way. The instances run with 192M of memory. With 6 VM launches on a single node all at the same time the host is under heavy load. This occurred in 20100323 lucid x86_64 uec-image instance. ProblemType: Bug AlsaDevices: Error: command ['ls', '-l', '/dev/snd/'] failed with exit code 2: ls: cannot access /dev/snd/: No such file or directory AplayDevices: Error: [Errno 2] No such file or directory Architecture: amd64 ArecordDevices: Error: [Errno 2] No such file or directory CurrentDmesg: Date: Wed Mar 24 22:06:32 2010 DistroRelease: Ubuntu 10.04 Frequency: Once a day. Lsusb: Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub MachineType: Bochs Bochs Package: linux-image-2.6.32-16-virtual 2.6.32-16.25 PciMultimedia: ProcCmdLine: root=/dev/sda1 console=ttyS0 ProcEnviron: LANG=en_US.UTF-8 SHELL=/bin/bash ProcVersionSignature: User Name 2.6.32-16.25-server Regression: No Reproducible: No SourcePackage: linux TestedUpstream: No Uname: Linux 2.6.32-16-server x86_64 dmi.bios.date: 01/01/2007 dmi.bios.vendor: Bochs dmi.bios.version: Bochs dmi.chassis.type: 1 dmi.chassis.vendor: Bochs dmi.modalias: dmi:bvnBochs:bvrBochs:bd01/01/2007:svnBochs:pnBochs:pvr:cvnBochs:ct1:cvr: dmi.product.name: Bochs dmi.sys.vendor: Bochs