"Jason A. Donenfeld" <Jason@zx2c4.com> writes:

> As discussed on IRC, notmuch segfaults with 1.3.1 but not with 1.2.5 on
> notmuch-new:
>
> Program received signal SIGSEGV, Segmentation fault.
> 0x00007ffff75a5367 in Xapian::TermIterator::skip_to(std::string const&) ()
> from /usr/lib64/libxapian-1.3.so.1
> (gdb) bt

I managed to duplicate this problem on Debian testing by rebuilding
Olly's packages (https://launchpad.net/~ojwb/+archive/xapian-1.3) for
sid and running the following script in the ./test subdirectory

,----
| test_description='"notmuch new" segfault'
| . test-lib.sh
| 
| generate_message
| gdb notmuch <<EOF
| run new
| bt full
| EOF
`----

The backtrace is attached.

backtrace.sh: Testing "notmuch new" segfault
GNU gdb (GDB) 7.6 (Debian 7.6-5)
Copyright (C) 2013 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.
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and "show warranty" for details.
This GDB was configured as "x86_64-linux-gnu".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>...
Reading symbols from /home/bremner/software/upstream/notmuch/notmuch...done.
(gdb) Starting program: /home/bremner/software/upstream/notmuch/notmuch new
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff709ba37 in Xapian::TermIterator::skip_to (this=0x7fffffffdc10, term=...)
    at ../api/termiterator.cc:145
(gdb) #0  0x00007ffff709ba37 in Xapian::TermIterator::skip_to (this=0x7fffffffdc10, 
    term=...) at ../api/termiterator.cc:145
No locals.
#1  0x0000000000422959 in _notmuch_message_get_term (message=0x6833e0, i=..., 
    end=..., prefix=0x434644 "XREPLYTO") at lib/message.cc:271
        prefix_len = 8
        value = 0x6810a0 "\001"
        term = {static npos = <optimized out>, 
          _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, _M_p = 0x67eaa8 "XFDIRENTRY2:msg-001"}}
#2  0x0000000000422d1b in _notmuch_message_ensure_metadata (message=0x6833e0)
    at lib/message.cc:347
        i = {internal = 0x0}
        end = {internal = 0x0}
        thread_prefix = 0x4346a0 "G"
        replyto_prefix = 0x434644 "XREPLYTO"
        __PRETTY_FUNCTION__ = "void _notmuch_message_ensure_metadata(notmuch_message_t*)"
        tag_prefix = 0x4346a6 "K"
        id_prefix = 0x4346ae "Q"
        filename_prefix = 0x434670 "XFDIRENTRY"
#3  0x0000000000422f18 in notmuch_message_get_message_id (message=0x6833e0)
    at lib/message.cc:390
No locals.
#4  0x000000000041f14e in _notmuch_database_link_message (notmuch=0x666240, 
    message=0x6833e0, message_file=0x666140) at lib/database.cc:1676
        status = NOTMUCH_STATUS_SUCCESS
        stored_id = {static npos = <optimized out>, 
          _M_dataplus = {<std::allocator<char>> = {<__gnu_cxx::new_allocator<char>> = {<No data fields>}, <No data fields>}, 
            _M_p = 0x7ffff702c3d8 <std::string::_Rep::_S_empty_rep_storage+24> ""}}
        message_id = 0x6832c0 "Tmail"
        thread_id = 0x0
        metadata_key = 0x67ea80 ""
#5  0x000000000041f769 in notmuch_database_add_message (notmuch=0x666240, 
    filename=0x666090 "/home/bremner/software/upstream/notmuch/test/tmp.backtrace/mail/msg-001", message_ret=0x7fffffffdee8) at lib/database.cc:1837
        message_file = 0x666140
        message = 0x6833e0
        private_status = NOTMUCH_PRIVATE_STATUS_NO_DOCUMENT_FOUND
        from = 0x67ee00 "Notmuch Test Suite <test_suite@notmuchmail.org>"
        ret = NOTMUCH_STATUS_SUCCESS
        ret2 = NOTMUCH_STATUS_SUCCESS
        to = 0x67eec0 "Notmuch Test Suite <test_suite@notmuchmail.org>"
        message_id = 0x67eaa0 "\001"
        date = 0x0
        header = 0x67ef10 "<msg-001@notmuch-test-suite>"
        subject = 0x6823c0 "Test message #1"
#6  0x000000000040e91c in add_files (notmuch=0x666240, 
    path=0x664a80 "/home/bremner/software/upstream/notmuch/test/tmp.backtrace/mail", state=0x7fffffffe1d0) at notmuch-new.c:507
        dir = 0x0
        entry = 0x665d50
        next = 0x666090 "/home/bremner/software/upstream/notmuch/test/tmp.backtrace/mail/msg-001"
        fs_mtime = 1378426382
        db_mtime = 0
        status = NOTMUCH_STATUS_SUCCESS
        ret = NOTMUCH_STATUS_SUCCESS
        message = 0x0
        fs_entries = 0x6811d0
        i = 2
        num_fs_entries = 4
        entry_type = 32768
        directory = 0x0
        db_files = 0x0
        db_subdirs = 0x0
        stat_time = 1378426382
        st = {st_dev = 65031, st_ino = 3451162, st_nlink = 3, st_mode = 16877, 
          st_uid = 1000, st_gid = 1000, __pad0 = 0, st_rdev = 0, st_size = 4096, 
          st_blksize = 4096, st_blocks = 8, st_atim = {tv_sec = 1378426382, 
            tv_nsec = 0}, st_mtim = {tv_sec = 1378426382, tv_nsec = 0}, st_ctim = {
            tv_sec = 1378426382, tv_nsec = 0}, __unused = {0, 0, 0}}
        is_maildir = 0
        tag = 0x7fffffffe480
#7  0x000000000040fa12 in notmuch_new_command (config=0x661eb0, argc=1, 
    argv=0x7fffffffe490) at notmuch-new.c:949
        notmuch = 0x666240
        add_files_state = {output_is_a_tty = 0, verbose = 0, debug = 0, 
          new_tags = 0x665ef0, new_tags_length = 2, new_ignore = 0x665fe0, 
          new_ignore_length = 0, total_files = 1, processed_files = 1, 
          added_messages = 0, removed_messages = 0, renamed_messages = 0, 
          tv_start = {tv_sec = 1378426382, tv_usec = 768704}, 
          removed_files = 0x681a10, removed_directories = 0x665d30, 
          directory_mtimes = 0x665c00, synchronize_flags = 1}
        elapsed = 2.1219957909652723e-314
        tv_now = {tv_sec = 0, tv_usec = 0}
        tv_start = {tv_sec = 0, tv_usec = 140737488348288}
        ret = 0
        st = {st_dev = 4294967295, st_ino = 140737353968080, 
          st_nlink = 140737328394192, st_mode = 4160580048, st_uid = 32767, 
          st_gid = 160, __pad0 = 0, st_rdev = 67, st_size = 128, st_blksize = 0, 
          st_blocks = 0, st_atim = {tv_sec = 0, tv_nsec = 0}, st_mtim = {
            tv_sec = 210453397510, tv_nsec = 472446402651}, st_ctim = {
            tv_sec = 532575944823, tv_nsec = 0}, __unused = {6546568, 0, 6548008}}
        db_path = 0x664a80 "/home/bremner/software/upstream/notmuch/test/tmp.backtrace/mail"
        dot_notmuch_path = 0x0
        action = {__sigaction_handler = {sa_handler = 0x40db03 <handle_sigint>, 
            sa_sigaction = 0x40db03 <handle_sigint>}, sa_mask = {__val = {
              0 <repeats 16 times>}}, sa_flags = 268435456, sa_restorer = 0x0}
        f = 0x7fffffffe480
        opt_index = 1
        i = 32767
        timer_is_active = 0
        no_hooks = 0
        options = {{opt_type = NOTMUCH_OPT_BOOLEAN, output_var = 0x7fffffffe1d4, 
            name = 0x432339 "verbose", arg_id = 118, keywords = 0x0}, {
            opt_type = NOTMUCH_OPT_BOOLEAN, output_var = 0x7fffffffe1d8, 
            name = 0x432341 "debug", arg_id = 100, keywords = 0x0}, {
            opt_type = NOTMUCH_OPT_BOOLEAN, output_var = 0x7fffffffe07c, 
            name = 0x432347 "no-hooks", arg_id = 110, keywords = 0x0}, {
            opt_type = NOTMUCH_OPT_END, output_var = 0x0, name = 0x0, arg_id = 0, 
            keywords = 0x0}}
#8  0x000000000040a519 in main (argc=2, argv=0x7fffffffe488) at notmuch.c:303
        local = 0x64b090
        talloc_report = 0x42fcfd <__libc_csu_init+93> "H\203\303\001H9\353u\352H\213\\$\bH\213l$\020L\213d$\030L\213l$ L\213t$(L\213|$0H\203\304\070\303\017\037\200"
        command_name = 0x7fffffffe7d1 "new"
        command = 0x63ee00 <commands+64>
        config_file_name = 0x0
        config = 0x661eb0
        print_help = 0
        print_version = 0
        opt_index = 1
        ret = 0
        options = {{opt_type = NOTMUCH_OPT_BOOLEAN, output_var = 0x7fffffffe354, 
            name = 0x4303a7 "help", arg_id = 104, keywords = 0x0}, {
            opt_type = NOTMUCH_OPT_BOOLEAN, output_var = 0x7fffffffe350, 
            name = 0x430c99 "version", arg_id = 118, keywords = 0x0}, {
            opt_type = NOTMUCH_OPT_STRING, output_var = 0x7fffffffe358, 
            name = 0x430368 "config", arg_id = 99, keywords = 0x0}, {
            opt_type = NOTMUCH_OPT_END, output_var = 0x0, name = 0x0, arg_id = 0, 
            keywords = 0x0}}
(gdb) quit
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	Inferior 1 [process 30499] will be killed.

Quit anyway? (y or n) [answered Y; input not from terminal]
 FATAL  

Unexpected exit while executing ./backtrace.sh. Exit code 0.