Running wmail under valgrind reveals the following when deleting an unread message:
==917== Invalid read of size 8 ==917== at 0x10C778: ??? (in /usr/bin/wmail) ==917== by 0x10D9B4: ??? (in /usr/bin/wmail) ==917== by 0x10D9F6: ??? (in /usr/bin/wmail) ==917== by 0x49F083F: ??? (in /lib/x86_64-linux-gnu/libc-2.28.so) ==917== by 0x4AA77E3: poll (poll.c:29) ==917== by 0x4FACCF6: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x4FAE919: xcb_wait_for_event (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x48BBC67: _XReadEvents (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x48AAD4F: XNextEvent (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x487150A: DAEventLoopForWindow (in /usr/lib/x86_64-linux-gnu/libdockapp.so.3.0.0) ==917== by 0x10B05B: ??? (in /usr/bin/wmail) ==917== by 0x49DD09A: (below main) (libc-start.c:308) ==917== Address 0x5546570 is 0 bytes inside a block of size 32 free'd ==917== at 0x48369AB: free (vg_replace_malloc.c:530) ==917== by 0x10D47D: ??? (in /usr/bin/wmail) ==917== by 0x10D61E: ??? (in /usr/bin/wmail) ==917== by 0x10DA65: ??? (in /usr/bin/wmail) ==917== by 0x49F083F: ??? (in /lib/x86_64-linux-gnu/libc-2.28.so) ==917== by 0x4AA77E3: poll (poll.c:29) ==917== by 0x4FACCF6: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x4FAE919: xcb_wait_for_event (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x48BBC67: _XReadEvents (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x48AAD4F: XNextEvent (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x487150A: DAEventLoopForWindow (in /usr/lib/x86_64-linux-gnu/libdockapp.so.3.0.0) ==917== by 0x10B05B: ??? (in /usr/bin/wmail) ==917== Block was alloc'd at ==917== at 0x483577F: malloc (vg_replace_malloc.c:299) ==917== by 0x10BEE2: ??? (in /usr/bin/wmail) ==917== by 0x10C03D: ??? (in /usr/bin/wmail) ==917== by 0x10D6AA: ??? (in /usr/bin/wmail) ==917== by 0x10DA65: ??? (in /usr/bin/wmail) ==917== by 0x49F083F: ??? (in /lib/x86_64-linux-gnu/libc-2.28.so) ==917== by 0x4AA77E3: poll (poll.c:29) ==917== by 0x4FACCF6: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x4FAE919: xcb_wait_for_event (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x48BBC67: _XReadEvents (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x48AAD4F: XNextEvent (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x487150A: DAEventLoopForWindow (in /usr/lib/x86_64-linux-gnu/libdockapp.so.3.0.0) ==917== ==917== Invalid read of size 8 ==917== at 0x10C828: ??? (in /usr/bin/wmail) ==917== by 0x10D9B4: ??? (in /usr/bin/wmail) ==917== by 0x10D9F6: ??? (in /usr/bin/wmail) ==917== by 0x49F083F: ??? (in /lib/x86_64-linux-gnu/libc-2.28.so) ==917== by 0x4AA77E3: poll (poll.c:29) ==917== by 0x4FACCF6: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x4FAE919: xcb_wait_for_event (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x48BBC67: _XReadEvents (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x48AAD4F: XNextEvent (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x487150A: DAEventLoopForWindow (in /usr/lib/x86_64-linux-gnu/libdockapp.so.3.0.0) ==917== by 0x10B05B: ??? (in /usr/bin/wmail) ==917== by 0x49DD09A: (below main) (libc-start.c:308) ==917== Address 0x5546570 is 0 bytes inside a block of size 32 free'd ==917== at 0x48369AB: free (vg_replace_malloc.c:530) ==917== by 0x10D47D: ??? (in /usr/bin/wmail) ==917== by 0x10D61E: ??? (in /usr/bin/wmail) ==917== by 0x10DA65: ??? (in /usr/bin/wmail) ==917== by 0x49F083F: ??? (in /lib/x86_64-linux-gnu/libc-2.28.so) ==917== by 0x4AA77E3: poll (poll.c:29) ==917== by 0x4FACCF6: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x4FAE919: xcb_wait_for_event (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x48BBC67: _XReadEvents (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x48AAD4F: XNextEvent (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x487150A: DAEventLoopForWindow (in /usr/lib/x86_64-linux-gnu/libdockapp.so.3.0.0) ==917== by 0x10B05B: ??? (in /usr/bin/wmail) ==917== Block was alloc'd at ==917== at 0x483577F: malloc (vg_replace_malloc.c:299) ==917== by 0x10BEE2: ??? (in /usr/bin/wmail) ==917== by 0x10C03D: ??? (in /usr/bin/wmail) ==917== by 0x10D6AA: ??? (in /usr/bin/wmail) ==917== by 0x10DA65: ??? (in /usr/bin/wmail) ==917== by 0x49F083F: ??? (in /lib/x86_64-linux-gnu/libc-2.28.so) ==917== by 0x4AA77E3: poll (poll.c:29) ==917== by 0x4FACCF6: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x4FAE919: xcb_wait_for_event (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x48BBC67: _XReadEvents (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x48AAD4F: XNextEvent (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x487150A: DAEventLoopForWindow (in /usr/lib/x86_64-linux-gnu/libdockapp.so.3.0.0) ==917== ==917== Invalid read of size 8 ==917== at 0x10C872: ??? (in /usr/bin/wmail) ==917== by 0x10D9B4: ??? (in /usr/bin/wmail) ==917== by 0x10D9F6: ??? (in /usr/bin/wmail) ==917== by 0x49F083F: ??? (in /lib/x86_64-linux-gnu/libc-2.28.so) ==917== by 0x4AA77E3: poll (poll.c:29) ==917== by 0x4FACCF6: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x4FAE919: xcb_wait_for_event (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x48BBC67: _XReadEvents (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x48AAD4F: XNextEvent (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x487150A: DAEventLoopForWindow (in /usr/lib/x86_64-linux-gnu/libdockapp.so.3.0.0) ==917== by 0x10B05B: ??? (in /usr/bin/wmail) ==917== by 0x49DD09A: (below main) (libc-start.c:308) ==917== Address 0x5546588 is 24 bytes inside a block of size 32 free'd ==917== at 0x48369AB: free (vg_replace_malloc.c:530) ==917== by 0x10D47D: ??? (in /usr/bin/wmail) ==917== by 0x10D61E: ??? (in /usr/bin/wmail) ==917== by 0x10DA65: ??? (in /usr/bin/wmail) ==917== by 0x49F083F: ??? (in /lib/x86_64-linux-gnu/libc-2.28.so) ==917== by 0x4AA77E3: poll (poll.c:29) ==917== by 0x4FACCF6: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x4FAE919: xcb_wait_for_event (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x48BBC67: _XReadEvents (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x48AAD4F: XNextEvent (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x487150A: DAEventLoopForWindow (in /usr/lib/x86_64-linux-gnu/libdockapp.so.3.0.0) ==917== by 0x10B05B: ??? (in /usr/bin/wmail) ==917== Block was alloc'd at ==917== at 0x483577F: malloc (vg_replace_malloc.c:299) ==917== by 0x10BEE2: ??? (in /usr/bin/wmail) ==917== by 0x10C03D: ??? (in /usr/bin/wmail) ==917== by 0x10D6AA: ??? (in /usr/bin/wmail) ==917== by 0x10DA65: ??? (in /usr/bin/wmail) ==917== by 0x49F083F: ??? (in /lib/x86_64-linux-gnu/libc-2.28.so) ==917== by 0x4AA77E3: poll (poll.c:29) ==917== by 0x4FACCF6: ??? (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x4FAE919: xcb_wait_for_event (in /usr/lib/x86_64-linux-gnu/libxcb.so.1.1.0) ==917== by 0x48BBC67: _XReadEvents (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x48AAD4F: XNextEvent (in /usr/lib/x86_64-linux-gnu/libX11.so.6.3.0) ==917== by 0x487150A: DAEventLoopForWindow (in /usr/lib/x86_64-linux-gnu/libdockapp.so.3.0.0) Will fix. J.
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