[Bug 613273] [NEW] kernel panic on ec2 in system_call_fastpath

[Scott Moser]

Public bug reported:

In testing alpha-3 build 20100813.2, I found the following kernel oops:
[    0.473264] Kernel panic - not syncing: Attempted to kill init!^M
[    0.473277] Pid: 1, comm: run-init Not tainted 2.6.35-14-virtual #19-Ubuntu^M
[    0.473284] Call Trace:^M
[    0.473294]  [<ffffffff815a0109>] panic+0x90/0x111^M
[    0.473303]  [<ffffffff81006b1b>] ? __raw_callee_save_xen_irq_enable+0x11/0x26^M
[    0.473312]  [<ffffffff8106276d>] forget_original_parent+0x33d/0x350^M
[    0.473318]  [<ffffffff81061b94>] ? put_files_struct+0xc4/0xf0^M
[    0.473325]  [<ffffffff8106279b>] exit_notify+0x1b/0x190^M
[    0.473330]  [<ffffffff810640a5>] do_exit+0x1c5/0x3f0^M
[    0.473336]  [<ffffffff81006afd>] ? __raw_callee_save_xen_irq_disable+0x11/0x1e^M
[    0.473343]  [<ffffffff810643d7>] sys_exit+0x17/0x20^M
[    0.473349]  [<ffffffff8100a0f2>] system_call_fastpath+0x16/0x1b^M

This happened only once in my testing so far today (dozens of boots).
I'm attaching the console log of failed instance.  The instance that reported this bug is same ami/region different instance.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-14-virtual 2.6.35-14.19
Regression: Yes
Reproducible: No
ProcVersionSignature: User Name 2.6.35-14.19-virtual 2.6.35
Uname: Linux 2.6.35-14-virtual x86_64
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: [   12.900041] eth0: no IPv6 routers present
Date: Wed Aug  4 01:19:11 2010
Ec2AMI: ami-09c3bc5b
Ec2AMIManifest: ubuntu-images-testing-ap-southeast-1/ubuntu-maverick-daily-amd64-server-20100803.2.manifest.xml
Ec2AvailabilityZone: ap-southeast-1b
Ec2InstanceType: m1.large
Ec2Kernel: aki-11d5aa43
Ec2Ramdisk: unavailable
Frequency: Once a week.
Lspci:
 
Lsusb: Error: command ['lsusb'] failed with exit code 1:
ProcCmdLine: root=LABEL=uec-rootfs ro
ProcEnviron:
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcModules: acpiphp 18752 0 - Live 0xffffffffa0000000
SourcePackage: linux

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug ec2-images iso-testing maverick needs-upstream-testing regression-potential

-- 
kernel panic on ec2 in system_call_fastpath
https://bugs.launchpad.net/bugs/613273
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