I'm running a 2-URL merge, and svn is aborting when trying to resolve conflicts on a directory that's been added both locally and as part of the other branch being merged in. I cannot reproduce this using simple setups, I have not been able to isolate what exactly triggers this behaviour, but it is reproducable on my repository.
Here's the exact command that I run: svn merge ^/trunk ^/branches/feature/sempv2_vpn_mon_7 . It produces many pages of add/modifies/deletes (the merge involve thousands of files), and then it starts interactive resolution of the conflicts. Summary of conflicts: Text conflicts: 40 Tree conflicts: 64 I start by choosing "mf" for the first 5 conflicts, and then when it get to the 6th conflict, it prints this: Merge conflicts in 'solcbr/common/commands/config/about/aboutCommands.py' marked as resolved. Searching tree conflict details for 'solcbr/common/commands/config/about/user' in repository: svn: E235000: In file 'subversion/libsvn_client/conflicts.c' line 2257: assertion failed (start_rev > end_rev) Aborted (core dumped) For this path the "user" diroctory was added in both the "mon_7" branch and in the local branch. Is this something that I should be raising a bug for? I didn't see any bugs like this raised yet. Backtrace from coredumpctl $ coredumpctl dump -o core.core PID: 12115 (svn) UID: 1000 (rolf) GID: 1000 (rolf) Signal: 6 (ABRT) Timestamp: Thu 2018-06-07 10:15:53 EDT (2min 43s ago) Command Line: svn merge -v ^/trunk ^/branches/feature/sempv2_vpn_mon_7 . Executable: /usr/bin/svn Control Group: /user.slice/user-1000.slice/user@1000.service/gnome-terminal-server.service Unit: user@1000.service User Unit: gnome-terminal-server.service Slice: user-1000.slice Owner UID: 1000 (rolf) Boot ID: bb60a0b96550448fa5b28a1b529839c2 Machine ID: e2af878696fe4a589a249c535fc30788 Hostname: rolf-linux Storage: /var/lib/systemd/coredump/core.svn.1000.bb60a0b96550448fa5b28a1b529839c2.12115.1528380953000000.lz4 Message: Process 12115 (svn) of user 1000 dumped core. Stack trace of thread 12115: #0 0x00007fe79bdaaf2b raise (libc.so.6) #1 0x00007fe79bd95561 abort (libc.so.6) #2 0x00007fe79d9f5212 svn_error_abort_on_malfunction (libsvn_subr-1.so.0) #3 0x00007fe7a01041cf find_revision_for_suspected_deletion (libsvn_client-1.so.0) #4 0x00007fe7a01072de conflict_tree_get_details_incoming_add (libsvn_client-1.so.0) #5 0x00007fe7a01034f9 svn_client_conflict_tree_get_details (libsvn_client-1.so.0) #6 0x0000564e75aaa474 svn_cl__resolve_conflict (svn) #7 0x0000564e75abb357 conflict_walker (svn) #8 0x00007fe7a010f312 conflict_status_walker (libsvn_client-1.so.0) #9 0x00007fe79fe6c8a8 send_status_structure (libsvn_wc-1.so.0) #10 0x00007fe79fe6ded3 get_dir_status (libsvn_wc-1.so.0) #11 0x00007fe79fe6f291 svn_wc__internal_walk_status (libsvn_wc-1.so.0) #12 0x00007fe7a010f494 svn_client_conflict_walk (libsvn_client-1.so.0) #13 0x0000564e75abb63c svn_cl__walk_conflicts (svn) #14 0x0000564e75ab4a58 svn_cl__merge (svn) #15 0x0000564e75ac004e sub_main (svn) #16 0x0000564e75aa50e7 main (svn) #17 0x00007fe79bd9718b __libc_start_main (libc.so.6) #18 0x0000564e75aa516a _start (svn) -Rolf