Tested on `4.18.3` When copying large files (I assume single file has to be larger than available RAM), process crash when it comes to verifying file checksum. Reproduce steps: 1. Edit -> Preferences -> Advanced -> Checksum while copying [always] 2. Copy very large file (tens of gigs, bigger than your RAM + SWAP) 3. Wait for checksumming operation Log from `~/.xsession-errors`: ``` (Thunar:1800): GLib-ERROR **: 21:17:43.256: ../glib/gmem.c:136: failed to allocate 51512490320 bytes (thunar:11759): GLib-ERROR **: 21:32:37.912: ../glib/gmem.c:136: failed to allocate 51512490320 bytes ``` By the way, I want to thank the whole team for safe-copy functionality.