Bug#586008: swapping on encraypted lvm swap lv leads to deadlock

[Holger Levsen]

reassign 586008 lvm2
thanks

On Dienstag, 15. Juni 2010, Sebastian Jeltsch wrote:
> Subject: base: swapping on encraypted lvm swap lv leads to deadlock
> Package: base
> Severity: important
> Tags: squeeze
>
> I'm using an encrypted LVM including a swap LV setup. It was created with
> the lenny installer. The system locks itself to death when the RAM is full
> instead of swapping.
> After running out of memory the typical message: "task * blocked for more
> than 120 seconds." appears. While nothing gets written to the log files.
> Altough the system still responds to ping requests it does not respond to
> anything else. (tried kernel 2.6.34-1 and 2.6.32-3)
>
> Checking the disk for bad blocks doesn't show any abnormality. Also
> switching the swap to a file within an encrypted LV doesn't help and the
> system shows the same behaviour. But switching the swap to an unencrypted
> usb flash drive does fix the problem and every thing is back to normal.
>
> LVM2: Version: 2.02.66-1
> cryptsetup: Version: 2:1.1.2-1
> dmsetup: Version: 2:1.02.48-1
> udev: Version: 157-1
>
>
>
> -- System Information:
> Debian Release: squeeze/sid
>   APT prefers testing
>   APT policy: (500, 'testing'), (1, 'experimental')
> Architecture: amd64 (x86_64)
>
> Kernel: Linux 2.6.34-1-amd64 (SMP w/2 CPU cores)
> Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8)
> Shell: /bin/sh linked to /bin/dash


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