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From: Tom Tromey <tom@tromey.com>
To: Tom de Vries via Gdb-patches <gdb-patches@sourceware.org>
Cc: Tom de Vries <tdevries@suse.de>
Subject: Re: [PATCH][gdbsupport] Avoid main thread in parallel for with thread sanitizer
Date: Wed, 21 Sep 2022 10:09:19 -0600	[thread overview]
Message-ID: <87y1uc3e1c.fsf@tromey.com> (raw)
In-Reply-To: <20220718100520.GA26230@delia.home> (Tom de Vries via Gdb-patches's message of "Mon, 18 Jul 2022 12:05:22 +0200")

>>>>> "Tom" == Tom de Vries via Gdb-patches <gdb-patches@sourceware.org> writes:

Tom> When running tasks in a parallel for, some elements may be handled by a worker
Tom> thread and others by the main thread.

Tom> When running with -fsanitize=thread, avoid the main thread in the parallel
Tom> for, to prevent multi-threading problems being hidden.

Tom> Tested on x86_64-linux, with -fsanitize=thread.

Tom> Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=29359

Tom> Any comments?

I tend to think that different behavior based on the use of a sanitizer
should be avoided.  Otherwise, the sanitizer is not checking what is
actually run.

Tom

      parent reply	other threads:[~2022-09-21 16:09 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-07-18 10:05 Tom de Vries
2022-07-18 10:31 ` Tom de Vries
2022-09-21 16:09 ` Tom Tromey [this message]

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