From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 12E79C79FB7 for ; Wed, 9 Sep 2026 14:45:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:Message-ID:References:In-Reply-To:Subject:CC:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Wm2geJlbtGbU92IZqu+eW8m0JT5CwaWOaBBT2z+SwHo=; b=lcdhRj3Mnr9D+vLIxg9CKXzshr gRSJMYr7bRrsxvFXv9aGo8FAcXSZzgt3VjR8VukBH3jklsYdQ9pb6IAE6IBRY2pFTpwWSsNjkTpGU dHvHAjdrJAnxgmsWXYsgtnIA1UVj73JyQLEuLkQF1GDiVEse3j6VeV0ajOis18r2dsHTvlfOGvFrx OjWbnidInI2YluNSqOXOvhlPjAApQTRFJH4syA+6Pe4IFsrQ6W44g2SABm0erO4t5bha99i0jO5qV LGCrrvCNmAQkUXz0nSS4MSah79nwYs48qWGkRXqaaP0kdfWv2UnBmtpz7dtEPf4NrXRiLL0IyEuZA dvTSTROg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1x4JYL-0000000C2HA-3dIl; Wed, 09 Sep 2026 14:45:33 +0000 Received: from mail.mainlining.org ([5.75.144.95]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1x4JYI-0000000C2Fg-3WnO for linux-arm-kernel@lists.infradead.org; Wed, 09 Sep 2026 14:45:32 +0000 DKIM-Signature: v=1; a=rsa-sha256; s=202507r; d=mainlining.org; c=relaxed/relaxed; h=Message-ID:Subject:To:From:Date; t=1788965108; bh=Wm2geJlbtGbU92IZqu+eW8m 0JT5CwaWOaBBT2z+SwHo=; b=rwXItU7pH72zB0D/BX831s78+axJv8WNyiUVJbPbmr+v+ca0iv Kp3yNZgIdQmLiSgld1J/BCxtgtSxeME+4jWvWsc9e+X4IlgoXcgBhQXU+cL0tnlaoTVAd4ySEQx i06xtXV6G0oYdk8QxofW096Z4J8JSwmJ8AVo36GkwYATG7j61Vm7Eda4NVACexD0LtomlsW1hIF 8Qq9kgOD9J7SY4OkqP1fCO/pUHVqnpqCZ/khJ5czQdZGWVCIOj1eQuNERQYnx+nwDZzz7NkdSzB kGVG3vBcyQzKTifgKzF1Bzg9+xptPOAkeXlbv680MmFQ/89BcTeW460/mE65Mjpbpmw==; DKIM-Signature: v=1; a=ed25519-sha256; s=202507e; d=mainlining.org; c=relaxed/relaxed; h=Message-ID:Subject:To:From:Date; t=1788965108; bh=Wm2geJlbtGbU92IZqu+eW8m 0JT5CwaWOaBBT2z+SwHo=; b=eQ332XR52iPJulGnX5vlJ+6ddc6RAyiihpHC5U83VmpXXhWnrn P9cvLPGuSD7cYw9NHLY7KpxQ8o5zk6ULRXAA==; Date: Wed, 09 Sep 2026 15:45:06 +0100 From: Bradley Morgan To: Mark Rutland , Will Deacon CC: Catalin Marinas , James Morse , Marc Zyngier , Ard Biesheuvel , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH 0/7] arm64: hibernate: dust off the suspend/cleanup rework In-Reply-To: References: <20260825205839.14571-1-brads@mainlining.org> Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260909_074531_032495_1BF7F5B0 X-CRM114-Status: GOOD ( 17.23 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 9 September 2026 10:05:16 BST, Mark Rutland wrote: >Hi Will, > >On Thu, Sep 03, 2026 at 11:53:59AM +0100, Will Deacon wrote: >> it's worth noting that Bradley's patch _does_ fix one of the >> hibernation problems and has been tested by Vladimir: >> >> https://lore.kernel.org/all/20260809213615.11646-1-include@grrlz.net/ >> >> I would prefer to take your complete set of patches, but if you don't >> want that then should I just take the above for now? Prior to this >> series, there has been no activity for nearly two years on your branch, >> so I'd prefer to get _something_ in, even if it only fixes some of the >> problems. > >Sorry for the delay. > >I'd prefer if you picked up Bradley's single patch for now. I'll follow >up with a respin of the rest of the cleanup and fixes shortly. Oh, so I didn't need to do all that? Urgh.. > >Could you add a note to the commit message as to how Vladimir was able >to trigger a hang with CONFIG_PAGE_POISONING=y and page_poison=on? It's >helpful for anyone testing a backport, etc. > >With that: > >Acked-by: Mark Rutland > >For context, when I originally wrote my patches, I hadn't managed to >trigger failures at top level without additional hacks, and so this >hadn't been a high priority. Given that Vladimir can trigger this >specific issue with existing options, it makes sense to pick that up. > >I had a vague recollection that this specific fix lead to a secondary >issue, but digging through my notes I can't see what that would have >been, and I suspect I had just gotten confused w.r.t. what KVM was >doing. If I find there was a real secondary issue I'll follow up with a >fix . > >Thanks, >Mark. --- Thanks! https://lore.kernel.org/all/EE579805-42F2-4C58-B752-F28779EEB717@grrlz.net/