Bug: fatal error with notmuch new, second run starts indexing all over again

[Gregor Zattler]

Hi David, notmuch developers,
* David Bremner <david at tethera.net> [03. Jul. 2017]:
> Gregor Zattler <telegraph at gmx.net> writes:
>> notmuch new fails while indexing my emails and when executed a
>> second time it obviously starts over again.  This is on a
>> up-to-date debian stetch with notmuch from git:
>> Any ideas how to proceed in order to get a working notmuch setup?

> 1. Check disk space

Sorry, forgot to mention: there is enough free space on RAM (8
GB) and SSD (40 G free).

> 2. run xapian-fsck

xapian-check does not find any errors, only spelling and synonym
are "Lazily created, and not yet used."

> 3. run "notmuch new" under gdb to try to get a backtrace

I have no clue about gdb, there was no backtrace:

0 (master) grfz at len:~$ gdb --args notmuch new
GNU gdb (Debian 7.12-6) 7.12.0.20161007-git
Copyright (C) 2016 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 "x86_64-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) run
Starting program: /usr/local/bin/notmuch new
[Thread debugging using libthread_db enabled]
Using host libthread_db library
"/lib/x86_64-linux-gnu/libthread_db.so.1".
Error: A Xapian exception occurred. Halting processing.
Processed 662357 total files in 1h 52m 51s (97 files/sec.).
Added 587023 new messages to the database.
Note: A fatal error was encountered: A Xapian exception occurred
[Inferior 1 (process 4509) exited with code 01]
(gdb) bt
No stack.
(gdb) 


> 4. use "git bisect" to try to find what commit introduced this problem

I'll do so in the next few days.

Thanks, Gregor
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