When the "props:" line in a noderev lists an all-zeroes checksum, FSFS segfaults:
[[[ % cat repro.sh #!/bin/sh rm -rf r wc svnadmin create r svn co -q file://`pwd`/r wc svn ps -q k v wc svn ci -qmm wc echo "First dump:" svnadmin dump -q r >/dev/null perl -pi -e 's/[0-9a-f]{16,}/"0" x length $&/e if /^props:/' r/db/revs/0/1 echo "Second dump:" svnadmin dump -q r >/dev/null ]]] Output: [[[ % ./repro.sh First dump: Second dump: Segmentation fault zsh: exit 139 ./repro.sh ]]] This is caused by these two lines in svn_fs_fs__parse_representation(): . 801 SVN_ERR(svn_checksum_parse_hex(&checksum, svn_checksum_md5, str, 802 scratch_pool)); 803 memcpy(rep->md5_digest, checksum->digest, sizeof(rep->md5_digest)); . LineĀ 801 sets CHECKSUM to NULL (as promised by svn_checksum_parse_hex()'s docstring), lineĀ 803 dereferences it unconditionally. I'm not aware of any way to create such text:/props: lines via the API, but they're useful when editing revision files by hand, and in any case invalid on-disk data should not cause segfaults. Ivan bisected this to r1462727. Cheers, Daniel