From: David Bremner <david@tethera.net>
To: "Peter P." <peterparker@fastmail.com>, notmuch@notmuchmail.org
Subject: Re: Notmuch new: Aborted/Segfault
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References: <dnnuoy4ncy46ggijxdgdjtho6ajm43ozmjg3ssf4ccqnff5wo4@zujh4y3sx3wh>
Date: Mon, 06 Apr 2026 13:37:18 +0900
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"Peter P." <peterparker@fastmail.com> writes:

> Hi list,
>
> (please CC me in your replies, as I am not subscribed to this list)
>
> I am getting errors and "Aborted" messages upon running
> 	notmuch new
> on a working installation since a few days. The error is
> 	double free or corruption (out)
> 	Aborted
> or with --verbose it's a simple
> 	Segmentation fault

You can also try notmuch new --debug, which might give us a bit more
information.

>
> Here is the backtrace:
>
> (gdb) double free or corruption (out)
> Program received signal SIGABRT, Aborted.
> 0x00007ffff7b8195c in ?? () from /lib/x86_64-linux-gnu/libc.so.6
> (gdb) bt
> #0  0x00007ffff7b8195c in ?? () from /lib/x86_64-linux-gnu/libc.so.6

Can you try with notmuch-dbgsym and libnotmuch5t64-dbgsym installed? You
will need to add apt sources

deb http://deb.debian.org/debian-debug/ stable-debug main
deb http://deb.debian.org/debian-debug/ proposed-updates-debug main

(the second is probably optional).

If the segmentation fault happens relatively quickly, it may be
worthwhile running notmuch under valgrind
> I have tried re-creating the entire database but without success. What
> could I try next? This is notmuch 0.39 on a Debian stable system.
>

If recreating the database didn't work, it would be good to eliminate
file system corruption (with fsck) and hardware problems (with
smartctl).

Another thing to try is notmuch 0.40-1~bpo13+1 from stable backports.

Out of curiousity, is there anything exotic about the filesystem?

d
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