Re: resize2fs stuck in ext4_group_extend with 100% CPU Utilization With Small Volumes

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On 9/22/15 4:26 PM, Pocas, Jamie wrote:
> Hi Theodore,
> 
> I am not sure if you had a chance to see my reply to Eric yet. I can
> see you are using the same general approach that Eric was using. The
> key difference from what I am doing again seems to be that I am
> resizing the underlying disk *while the filesystem is mounted*.

Do you see the same problem if you resize a physical disk, not
just with loopback? Sounds like it...

In theory it should be reproducible w/ lvm too, then, I think,
unless there's some issue specific to your block device similar to
what's happening on the loop device.

> Instead you both are using truncate to grow the disk while the
> filesystem is not currently mounted, and then mounting it.

Always worth communicating a testcase in the first email, if you
have one, so we don't have to guess.  ;)

thanks,
-Eric

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