rsync - Jan 2021 - malloc assert

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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On Wed, Jan 27, 2021 at 2:19 AM Hans Andersson wrote:
> I occasionally get the following error when running rsync [malloc.c
> assertion]
>
Since rsync doesn't supply any malloc code, that's probably a question
for
your C-library provider. You might first try out 3.2.3, which fixed a
couple mem issues in the xattr code, but since you don't seem to be using
xattrs, that may not change anything. You could also try running rsync
under something like valgrind and see if it spits out any mem issues
(though it would run more slowly while doing it). Please keep in mind that
it's always most helpful to upgrade before starting in on a
debuggin session.

..wayne..
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