From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pf1-f176.google.com (mail-pf1-f176.google.com [209.85.210.176]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id BBB6660888 for ; Tue, 30 Jan 2024 09:19:42 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.210.176 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706606384; cv=none; b=EMbzah6wk6WeLrNoqaDPnyO5L5lgCLtbDfjIpacXd0AB7cRKio/ppKyUs8iGJa4ph+gOr3gexrUw0/ZJz/o4Q/6i420iuizj4M/0vR07pg+2DJhFYWLb6nFcPLOUO/PIdcCgaO/LTdIWUL7b3YReuidLcU9YQHbYHcfrhq8bTPQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706606384; c=relaxed/simple; bh=BuQ21+ovIZw4O3X3gm0jwHDGVMsfPwdAs6CkLmSfngU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=hSGWSTxx4wHpeSUgMI5MQoDsqq8SFpXuqyGKA+ev/d8dq/dBmC5sU8NFlkzYYox7DWH/MHzYCO3owBugHFo/Z8kLIIL0Cmmj+tNLvyBd8TyZVBzrSnC5zaeHJlnNdRmKfbtb0z8KHO2yz6kfNEPIE0Z2/tj7HVUktzkAPs0tdO0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=Uqd+ycKz; arc=none smtp.client-ip=209.85.210.176 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="Uqd+ycKz" Received: by mail-pf1-f176.google.com with SMTP id d2e1a72fcca58-6dddee3ba13so1420285b3a.1 for ; Tue, 30 Jan 2024 01:19:42 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1706606382; x=1707211182; darn=lists.linux.dev; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:from:to:cc:subject:date:message-id :reply-to; bh=PIxMkx8XGFZp5+ArdrZFjloeoHh0HNlPldRTN466UNk=; b=Uqd+ycKzMeRERT1fmKvDO1muw30wTb79LzESiVh+VWfF5i2Po/9rfS56O8BuPBtB8Q TTuCKO0k/HhwND3Y6w32OEpv8qPAe1Iu8c/xAqqo01lRgPyB0m7ffTbTRW+R+Rr6BSkC NVrlYkwrrgtwd+Zzeut+rTfTCUxvUQyY6FVAL0y2Kec8uKmxN4R5sBJp4hcHu8R735WY kBi1qTc0t8zBIjmyTn6oZkFN6L4JwtTNw47F23MvHn3wnnLhAeBH1OLZpljveuc1qPia ezYGebYySVXxPx2z33PlecdyZD2uxZqWoYz6ONDfXjrPQqz0vZ/5j8Tn5gsqq71r3KF8 9qBg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1706606382; x=1707211182; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=PIxMkx8XGFZp5+ArdrZFjloeoHh0HNlPldRTN466UNk=; b=ndZ20sxrdAsKnkwVFmlLWjy4UxIlTBMkXZ2cOZRguy7y7J2p+Xu0tDfhY/5913tO0B xWKO7HUyJrsL8QGwLjnBFsMOGb6rtGajrribtAurpjnVt14KJrrxNEvyWNSEDssiX+Qc yIZ3Wt2zCTpoNK96RtaxTZ0GkIHvFx4w2h/Qp/5G63xMfUg4irXCuoOQzPyu9j9VuxgU F+L/jyxpYb8hRWfzHYlaXh6rMuLfGcE4SAtyf0sOiiKmtI+c6kaSuXI40KZapGuYppP9 /m0XzL8buD4mijGQH0p+UQxAuxmvso6dmLB3oclibwE29Hw9+GCwS/4ItOTuVmXxwdoO vAAQ== X-Gm-Message-State: AOJu0YxDI9cgxHy8oRyOYHISGqar8NeRxU2nAac2qvfHLJPkUgUbg6Q/ wt1i2O6rsvGON+lNEvBKtJDRj60CiJcySe0+u/3V4ovmYGCQj3RM X-Google-Smtp-Source: AGHT+IGQdC4nLoSoiscOQZE9pZywsieV6oVbh3SRyarT8ETvZ7d0gpH15qiT4cLqoktVJeltXJRpKA== X-Received: by 2002:a05:6a00:bc2:b0:6db:e491:c879 with SMTP id x2-20020a056a000bc200b006dbe491c879mr3924610pfu.20.1706606381971; Tue, 30 Jan 2024 01:19:41 -0800 (PST) Received: from localhost (dhcp-141-239-144-21.hawaiiantel.net. [141.239.144.21]) by smtp.gmail.com with ESMTPSA id g4-20020a056a0023c400b006dbc5569599sm7485770pfc.10.2024.01.30.01.19.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 30 Jan 2024 01:19:41 -0800 (PST) Sender: Tejun Heo Date: Mon, 29 Jan 2024 23:19:40 -1000 From: Tejun Heo To: Linus Torvalds Cc: Mikulas Patocka , Thomas Gleixner , linux-kernel@vger.kernel.org, dm-devel@lists.linux.dev, Mike Snitzer , Ignat Korchagin , Damien Le Moal , Bob Liu , Hou Tao , Nathan Huckleberry , Peter Zijlstra , Ingo Molnar Subject: Re: [PATCH] softirq: fix memory corruption when freeing tasklet_struct Message-ID: References: <82b964f0-c2c8-a2c6-5b1f-f3145dc2c8e5@redhat.com> Precedence: bulk X-Mailing-List: dm-devel@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: On Sat, Jan 27, 2024 at 08:37:45AM -1000, Tejun Heo wrote: > Should have known when it worked too well on the first try but I missed a > part in init and this was just running them on per-cpu workqueues. Will post > an actually working version later. For posterity, the patchset is at http://lkml.kernel.org/r/20240130091300.2968534-1-tj@kernel.org -- tejun