From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DB1D9344D95; Fri, 8 May 2026 19:48:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778269738; cv=none; b=aJWMWbc4bGsUOmU1U1VQU0jooh9+9g5+1HKjqQ0qbtM7n60UtddlK95HFWysv2eoHk+MX8E77hxFX1ZRzI5HSL9egILCAIyN57FzCHRqikHyZlUi4PgCX4lwdWKQWQBIHRtmjujrm8DRKhRulTPo2a4EV2VBdrN3Kj2R63L/+Y4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1778269738; c=relaxed/simple; bh=3SV/vTeM7G4mieMIcUvbSvqIjspKebu6/kUdPpthl7c=; h=Date:From:To:Cc:Subject:Message-Id:In-Reply-To:References: Mime-Version:Content-Type; b=jr5LjiCKj7EGtxTruj5f5Zn7I4D1//sw40Lu9x+N/B/INhVDZTKJXFNKJo/0RHtiO72mE4L1cpUppC0fWCPs0typBSgFhP8BfyzmHsZCqzhs1HHsz/clTTunNuKPNKjtm4jlEYvBdW+qvbXGX//Jja+G4X13U9i1wFd8aw/lhI8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b=CAdw8aIb; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux-foundation.org header.i=@linux-foundation.org header.b="CAdw8aIb" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 23450C2BCB0; Fri, 8 May 2026 19:48:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1778269738; bh=3SV/vTeM7G4mieMIcUvbSvqIjspKebu6/kUdPpthl7c=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=CAdw8aIbE1cYAvofAP+Mb7uuQMWaMcNu5t0wGni1P0Xu/wVy1MSiO46hmpoSImakv jq3P/W6aopOkIAW6vqbyGWKhyao4JkRr0oOWRr+2HEZ3HY5CVfMvEKB4mThfcrarHn ST04oTWmoHIlVpy5ftY2YhpqBBf0lESt+JQQ6zmw= Date: Fri, 8 May 2026 12:48:57 -0700 From: Andrew Morton To: "Arnd Bergmann" Cc: "Peter Oberparleiter" , "Konstantin Khorenko" , "Nathan Chancellor" , "Nicolas Schier" , "Mikhail Zaslonko" , "Masahiro Yamada" , Thomas =?ISO-8859-1?Q?Wei=DFschuh?= , "Miguel Ojeda" , linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, "Pavel Tikhomirov" , "Vasileios Almpanis" Subject: Re: [PATCH v2] gcov: use atomic counter updates to fix concurrent access crashes Message-Id: <20260508124857.97f80d47875a240b9d46d3d0@linux-foundation.org> In-Reply-To: References: <20260422125112.3583649-1-khorenko@virtuozzo.com> <20260422125112.3583649-2-khorenko@virtuozzo.com> <3786062b-ce93-47e0-8eb1-125bac5dbb2a@app.fastmail.com> X-Mailer: Sylpheed 3.8.0beta1 (GTK+ 2.24.33; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Thu, 07 May 2026 15:43:01 +0200 "Arnd Bergmann" wrote: > > 1. Drop the patch > > => not preferred - crash would still remain, and the consistency > > improvements would be lost > > This might be an option for the moment, until we have a better > solution though. Compromise: I temporarily moved this patch ("gcov: use atomic counter updates to fix concurrent access crashes") into mm-git's mm-new branch. So the patch still exists, is still under test by a few MM developers but is no longer in linux-next.