malloc assert

[Hans Andersson]

Hi all

I occasionally get the following error when running rsync

[18:04:49][make -C img ] rsync: malloc.c:2385: sysmalloc: Assertion `(old_top == initial_top (av) && old_size == 0) || ((unsigned long) (old_size) >= MINSIZE && prev_inuse (old_top) && ((unsigned long) old_end & (pagesize - 1)) == 0)' failed.

Using rsync
rsync  version 3.1.3  protocol version 31

The command is trivial.
rsync -a --delete $tmpdir/targetfs/ $tmpdir/masterfs

Is this due to a bug in rsync or is it an out of memory error? How can I help to resolve it?

Best regards
Hans
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