From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 936FB463B86 for ; Fri, 2 Oct 2026 21:54:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790978059; cv=none; b=e3fMqcB38Gv/dK61sx/Tf2S2bigtKdLSeMXXRfsToJkNGv6Mx2h77nDPY1K70UA1H++kghal2ZMddltfoShcgaZ3iWflh7OCgTXMOyTrJuGsN6V8/rwI8CPuxqBei+n97c76fgQ6MaqPez0R4Srd3EUvf9GxK3QP6E9VYPQFjO0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790978059; c=relaxed/simple; bh=/zn06wt5whvMHZjgDBvZfLc4hMOido8Tkmdk0Z14s/0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Q8w1UKkb8J0w0WuvHojqmFhiV+9PduOD7T7Ai6ohkl58sdsR43wwrxG34i7JohzgC4GTwUrKbmfoZOrSnnkHDg7nRuQlDhcHioF6akEObTVYNNHaOcwU13pDV3rgx99BmJQ1y7TqWTjAJKj3RSWGhpc5Kr9ESY0yV2fwnHOSLlg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=V1Zg0f2a; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=sTo5iCqo; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="V1Zg0f2a"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="sTo5iCqo" Date: Fri, 2 Oct 2026 23:54:12 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1790978054; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=w+D7DxGAU7JYy5hIt3woWGy4190o/Tc2Pglh2vrdhz4=; b=V1Zg0f2a7pm2pFAipBTtlLBEVdJWvHuyUKfxRmuHKMdMKuRtx1zRyBYLcAYYs37hFZgx6G bK8GzBc0iCzdAg6UvTud7IfW3xUxA1Ql/Hkpn6riP17QBbzXupbnBewuPn1/M0R2PXvX9D vzdZa47ThK+b5HVZ3gAUCoNnqogJ95ZB27A3X6imsShY9On9WAvv2fHfIwAeNDzWy+so8r 7t4uGyY/JtFcfj5OWUFod4P5Ic2gp4RRMwV1oAkVvFWxOF5E5koZqGbptBbZlYyZQhIdh2 DTx5iLGmqqLkf4qy5LYgjb6f/K23HVpu2gVMiq6eDRm1I8BWwHJFF+AhcVAC6Q== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1790978054; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=w+D7DxGAU7JYy5hIt3woWGy4190o/Tc2Pglh2vrdhz4=; b=sTo5iCqoxr5SLVCs1SmuPwz63hCWdbe3YnUbFhWn7uqbpqPJI3VsSeqbqPqk+klu0WZERA SCthXSWOrMLh2vCA== From: Sebastian Andrzej Siewior To: Jakub Kicinski Cc: netdev@vger.kernel.org, linux-rt-devel@lists.linux.dev, Nam Cao , Kuniyuki Iwashima , "David S . Miller" , Eric Dumazet , Paolo Abeni , Simon Horman Subject: Re: [PATCH net-next v5] af_unix: Do not wait for garbage collector in sendmsg() Message-ID: <20261002215412.lUoSB2XU@linutronix.de> References: <20260930162457.4ajVJ-Qa@linutronix.de> <20261002125357.200a5aeb@kernel.org> Precedence: bulk X-Mailing-List: linux-rt-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20261002125357.200a5aeb@kernel.org> On 2026-10-02 12:53:57 [-0700], Jakub Kicinski wrote: > On Wed, 30 Sep 2026 18:24:57 +0200 Sebastian Andrzej Siewior wrote: > > From: Nam Cao > > This looks effectively identical to v4. I'll put it into 'Needs ACK'. > If Kuniyuki is unconvinced please do not repost this again. basically the same, yes. I did try to explain why that flush does not improve things. Also I added my notes (as a reply to the patch) where the bad boy consumes a lot of memory and the GC+flush do not help. This looks like current limits are too high. I am also not sure if the memory account for sockets in this case works as expected. Sebastian