Swap files and panics
derek at computinginnovations.com
Wed May 30 15:49:18 UTC 2012
At 10:54 AM 5/29/2012, Warren Block wrote:
>Recently I rearranged partitions on an SSD. The swap partition was
>eliminated in favor of a swap file on /usr. This works, allows TRIM
>support on the swap space, and is easier to resize than a partition.
>However, sometimes the system panics on shutdown. It happens after
>"syncing disks", so the filesystems are fine, but it's disconcerting.
>I suspect but haven't yet managed to prove that it's only when swap is not
>empty. A race condition involving when the filesystems are unmounted? Or
>should there be some code in /etc/rc.d/addswap to run swapoff before shutdown?
>This is on a very recent 9-STABLE amd64, i5 2500K.
Did you remove the old swap file entry from /etc/fstab?
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