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From: Nathan Bossart <[email protected]>
To: Kirill Reshke <[email protected]>
Cc: Heikki Linnakangas <[email protected]>
Cc: Andres Freund <[email protected]>
Cc: [email protected] <[email protected]>
Subject: Re: add assertion for palloc in signal handlers
Date: Wed, 18 Feb 2026 09:46:43 -0600
Message-ID: <aZXe47ZFcrOOKXh3@nathan> (raw)
In-Reply-To: <CALdSSPgFNJ7HK93QbAk2K+Vr88dtuG5t7nGaRF7S6rmcmGpTaA@mail.gmail.com>
References: <aZTqurNQG-cDzJcL@nathan>
	<CALdSSPgFNJ7HK93QbAk2K+Vr88dtuG5t7nGaRF7S6rmcmGpTaA@mail.gmail.com>

On Wed, Feb 18, 2026 at 12:13:46PM +0500, Kirill Reshke wrote:
> Hi! I tested patch under --single (single user mode), and ISTM that we
> can reach palloc from ProcessInterrups here?
> Maybe we should not elog in single user mode inside sighandler...

This is reproducible even without single-user mode by sending SIGQUIT to a
client backend.  Both die() and quickdie() call ereport(), and both are
commonly used as signal handlers for SIGTERM and SIGQUIT.

-- 
nathan

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