The notmuch test suite is currently failing on ppc64el (but not on plain old ppc) because of what looks like this bug.
% gdb --args ../../notmuch --config=notmuch-config insert GNU gdb (Debian 7.10-1) 7.10 Copyright (C) 2015 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "powerpc64le-linux-gnu". Type "show configuration" for configuration details. For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Find the GDB manual and other documentation resources online at: <http://www.gnu.org/software/gdb/documentation/>. For help, type "help". Type "apropos word" to search for commands related to "word"... Reading symbols from ../../notmuch...done. (gdb) set breakpoint pending on (gdb) break notmuch_database_add_message Breakpoint 1 at 0x10024fb0: file lib/database.cc, line 2390. (gdb) run --config=notmuch-config insert < mail/msg-002 Starting program: /home/bremner/notmuch-0.21~rc3/notmuch --config=notmuch-config insert < mail/msg-002 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/powerpc64le-linux-gnu/libthread_db.so.1". [Inferior 1 (process 10804) exited normally] (gdb) break notmuch_insert_command Breakpoint 2 at 0x1000f550: file notmuch-insert.c, line 445. (gdb) run Starting program: /home/bremner/notmuch-0.21~rc3/notmuch --config=notmuch-config insert < mail/msg-002 [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/powerpc64le-linux-gnu/libthread_db.so.1". Breakpoint 2, notmuch_insert_command (config=<optimized out>, argc=<optimized out>, argv=<optimized out>) at notmuch-insert.c:445 445 { (gdb) break 549 Breakpoint 3 at 0x1000fe44: file notmuch-insert.c, line 549. (gdb) cont Continuing. Breakpoint 3, notmuch_insert_command (config=0x1009e040, argc=<optimized out>, argv=<optimized out>) at notmuch-insert.c:549 549 status = add_file (notmuch, newpath, tag_ops, synchronize_flags, keep); (gdb) s add_file (keep=0, synchronize_flags=1, tag_ops=0x100a7310, path=0x100cd8e0 "/home/bremner/notmuch-0.21~rc3/test/tmp.T070-insert/mail/new/1445943068.M434795P11340.plummer", notmuch=0x100a76f0) at notmuch-insert.c:386 386 status = notmuch_database_add_message (notmuch, path, &message); (gdb) s notmuch_database_add_message (notmuch=0x100a76f0, filename=0x100cd8e0 "/home/bremner/notmuch-0.21~rc3/test/tmp.T070-insert/mail/new/1445943068.M434795P11340.plummer", message_ret=0x3fffffffddd0) at lib/database.cc:2401 2401 if (message_ret) (gdb) bt #0 notmuch_database_add_message (notmuch=0x100a76f0, filename=0x100cd8e0 "/home/bremner/notmuch-0.21~rc3/test/tmp.T070-insert/mail/new/1445943068.M434795P11340.plummer", message_ret=0x3fffffffddd0) at lib/database.cc:2401 #1 0x000000001000fe5c in add_file (keep=0, synchronize_flags=1, tag_ops=0x100a7310, path=0x100cd8e0 "/home/bremner/notmuch-0.21~rc3/test/tmp.T070-insert/mail/new/1445943068.M434795P11340.plummer", notmuch=0x100a76f0) at notmuch-insert.c:386 #2 notmuch_insert_command (config=<optimized out>, argc=<optimized out>, argv=<optimized out>) at notmuch-insert.c:549 #3 0x000000001000a014 in main (argc=<optimized out>, argv=0x3ffffffff528) at notmuch.c:421
