01.06.2023 22:28, Andrey Drobyshev via пишет:
In case when we're rebasing within one backing chain, and when target image
is larger than old backing file, bdrv_is_allocated_above() ends up setting
*pnum = 0. As a result, target offset isn't getting incremented, and we
get stuck in an infinite for loop. Let's detect this case and proceed
further down the loop body, as the offsets beyond the old backing size need
to be explicitly zeroed.
Signed-off-by: Andrey Drobyshev <andrey.drobys...@virtuozzo.com>
It looks like you forgot the Reviewed-by: Denis V. Lunev here and
in the subsequent patch.
Should this be backported to -stable? Not that I've seen this issue,
it's a quite specific and somewhat rare case..
Thanks,
/mjt
