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help / color / mirror / Atom feedFrom: Michael Paquier <[email protected]>
To: Andres Freund <[email protected]>
Cc: Bertrand Drouvot <[email protected]>
Cc: Jeff Davis <[email protected]>
Cc: Greg Sabino Mullane <[email protected]>
Cc: [email protected]
Subject: Re: Adding locks statistics
Date: Mon, 6 Apr 2026 15:19:57 +0900
Message-ID: <[email protected]> (raw)
In-Reply-To: <rp6wz4lnz5qn4zlh7uxtavzfrmqvycy2g42z4zasfss2gxi54f@zzcsjdvdflwp>
References: <hlkdrplgrmudbspibsuq6xooxrqxqsgwo6x5b6x5ptvkgjbe7w@xogt6xgua6dz>
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<rp6wz4lnz5qn4zlh7uxtavzfrmqvycy2g42z4zasfss2gxi54f@zzcsjdvdflwp>
On Mon, Apr 06, 2026 at 01:22:23AM -0400, Andres Freund wrote:
> https://cirrus-ci.com/task/6253659454963712
> https://api.cirrus-ci.com/v1/artifact/task/6253659454963712/testrun/build/testrun/test_misc/011_lock...
>
> [04:33:31.756](0.067s) # die: error running SQL: 'psql:<stdin>:1: ERROR: could not detach injection point "deadlock-timeout-fired"'
I got a way to reproduce the same error pattern with the following
trick:
--- a/src/backend/utils/misc/injection_point.c
+++ b/src/backend/utils/misc/injection_point.c
@@ -357,6 +357,8 @@ InjectionPointDetach(const char *name)
int idx;
int max_inuse;
+ pg_usleep(5 * 1000000L);
+
LWLockAcquire(InjectionPointLock, LW_EXCLUSIVE);
Now looking at it, and for the reason why 010 for concurrent indexes
does not complain..
--
Michael
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To: [email protected]
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Subject: Re: Adding locks statistics
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