[Bug 660163] [NEW] ec2 kernel hang on XENBUS: Waiting for devices to initialize

[Scott Moser]

Public bug reported:

Today was the first time I've seen this bug.

I launched a t1.micro instance and was unable to ssh to it.  Checking the console log showed:
...
[    0.216369] lo: Disabled Privacy Extensions^M
[    0.216682] NET: Registered protocol family 17^M
[    0.216795] registered taskstats version 1^M
[    5.310016] XENBUS: Waiting for devices to initialise: 295s...290s...285s...280s...275s...270s...265s...260s...255s...250s...245s...240s...235s...230s...225s...220s...215s...210s...205s...200s...195s...190s...185s...180s...175s...170s...165s...160s...155s...150s...145s...140s...135s...130s...125s...120s...


It did not respond to a reboot-instances, and hung in shutting-down on 'terminate-instances' request.


instance was launched at '2010-10-13T17:21:33.000Z' it is now 20:11:24, so plenty of time was given for that apparent last 120s.

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-22-virtual 2.6.35-22.33
Regression: No
Reproducible: No
ProcVersionSignature: User Name 2.6.35-22.33-virtual 2.6.35.4
Uname: Linux 2.6.35-22-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:
 [  202.405066] SGI XFS with ACLs, security attributes, realtime, large block/inode numbers, no debug enabled
 [  202.413498] SGI XFS Quota Management subsystem
 [  202.656020] Btrfs loaded
Date: Wed Oct 13 19:44:19 2010
Ec2AMI: ami-548c783d
Ec2AMIManifest: (unknown)
Ec2AvailabilityZone: us-east-1d
Ec2InstanceType: t1.micro
Ec2Kernel: aki-427d952b
Ec2Ramdisk: unavailable
Frequency: Once a month.
Lspci:
 
Lsusb: Error: command ['lsusb'] failed with exit code 1:
ProcCmdLine: root=LABEL=uec-rootfs ro console=hvc0
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: linux

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


** Tags: amd64 apport-bug ec2-images kernel-uncat maverick needs-upstream-testing

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ec2 kernel hang on XENBUS: Waiting for devices to initialize
https://bugs.launchpad.net/bugs/660163
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