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Filipe David Borba Manana
8c427eb7b8
Regression test for btrfs' incremental send feature: 1) Create several nested directories; 2) Create a read only snapshot; 3) Change the parentship of some of the deepest directories in a reverse way, so that parents become children and children become parents; 4) Create another read only snapshot and use it for an incremental send relative to the first snapshot. At step 4 btrfs' send entered an infinite loop, increasing the memory it used while building path strings until a krealloc was unable to allocate more memory, which caused a warning dump in dmesg. The following linux kernel patch fixes this issue. Btrfs: fix infinite path build loops in incremental send (https://patchwork.kernel.org/patch/3522361/) Signed-off-by: Filipe David Borba Manana <fdmanana@gmail.com> Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
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25 B
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