Groups > linux.debian.bugs.dist > #1091882

Bug#1004740: exim4: SIGSEGV (maybe attempt to write to immutable memory) when sending a mail; message frozen

From	Vincent Lefevre <vincent@vinc17.net>
Newsgroups	linux.debian.bugs.dist
Subject	Bug#1004740: exim4: SIGSEGV (maybe attempt to write to immutable memory) when sending a mail; message frozen
Date	2022-02-03 03:40 +0100
Message-ID	<DMAcp-5tr-1@gated-at.bofh.it> (permalink)
References	(1 earlier) <DM1HI-1iW-3@gated-at.bofh.it> <DM213-1EO-3@gated-at.bofh.it> <DMrC9-pt-7@gated-at.bofh.it> <DM1HI-1iW-3@gated-at.bofh.it> <DMrC9-pt-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On 2022-02-02 18:20:48 +0100, Andreas Metzler wrote:
> Yeah from exim's POV this workes out as designed. Something very much
> unexpected happened, let's freeze the message and tell the admin. The
> message is not lost. It is still in queue.

Yes, once the issue occurs, exim works as designed. But this makes
the issue particularly problematic. Note that on a multi-user machine,
the user typically doesn't have access to the status of the queue,
so doesn't know that the mail has not been sent, and will probably
never know the reason.

> Is this reproducible, happening with a specific host?

Not reproduced yet. I wonder whether this is due to the "SMTP error
from remote mail server after DATA: 450 [S09] Try Again Later".

> Any chance of getting a coredump?

exim didn't leave a coredump. I could see that Mutt disables coredumps
after some time. I don't know under which condition.

-- 
Vincent Lefèvre <vincent@vinc17.net> - Web: <https://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)

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Bug#1004740: exim4: SIGSEGV (maybe attempt to write to immutable memory) when sending a mail; message frozen Vincent Lefevre <vincent@vinc17.net> - 2022-02-01 15:10 +0100
  Bug#1004740: exim4: SIGSEGV (maybe attempt to write to immutable memory) when sending a mail; message frozen Andreas Metzler <ametzler@bebt.de> - 2022-02-02 18:30 +0100
    Bug#1004740: exim4: SIGSEGV (maybe attempt to write to immutable memory) when sending a mail; message frozen Vincent Lefevre <vincent@vinc17.net> - 2022-02-03 03:40 +0100

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