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From: Nathan Bossart <[email protected]>
To: Andres Freund <[email protected]>
Cc: Tomas Vondra <[email protected]>
Cc: PostgreSQL Hackers <[email protected]>
Subject: Re: strange valgrind reports about wrapper_handler on 64-bit arm
Date: Fri, 7 Mar 2025 10:36:35 -0600
Message-ID: <Z8sgkxMDlXVENIHb@nathan> (raw)
In-Reply-To: <i73pjuqcqgv5lsprc76z4bug55okadxpzpuijnup34qmqtwexi@gakdkcyjox5l>
References: <[email protected]>
	<i73pjuqcqgv5lsprc76z4bug55okadxpzpuijnup34qmqtwexi@gakdkcyjox5l>

On Fri, Mar 07, 2025 at 11:32:28AM -0500, Andres Freund wrote:
> Is it possible that the signal number we're getting called for is above
> PG_NSIG? That'd explain why the source value is something fairly random?
> 
> ISTM that we should add an Assert() to wrapper_handler() that ensures that the
> signal arg is below PG_NSIG.

We have such an assertion in pqsignal() before we install wrapper_handler
for anything.  Is there another way it could be getting called with a
different signo?

-- 
nathan

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