From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pg1-f181.google.com (mail-pg1-f181.google.com [209.85.215.181]) (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 C66FE7B for ; Fri, 21 Oct 2022 03:10:09 +0000 (UTC) Received: by mail-pg1-f181.google.com with SMTP id q71so1356254pgq.8 for ; Thu, 20 Oct 2022 20:10:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=GVDeaTKoSrOeCfd6nCXKEY/GIy0Kyct0/tmYk1UcIUw=; b=G7ifq2dkQ3DICOfSgmtHGTZ7dMZQvQ34Tb5+dVJfD2zOpDahc0SV/2oshuQWvCf6pt 9deeHDnwhW7MiA3yoVmNPYOXnzV4MwmD0GpkGPthCONqn2aTzTJK6wrMlUMhkykGEFvy n2v9TZFznNTvYsGiPco24OZ6rOnhZmQStzhFXtETn52/E6Exb/I1FBrTGxQseO7oodpR CooPpXLJRSt9+tkD84l6RjAPx+MEb//8Z8BnP7EtIeFZbYXN8/fpyPjGKHIp6DJVhzpl e6SaUXP41JKGFksQx2qg3cU4m/93bp1oftck7u/xSdila5m8HCKaJ695CxvY0YofVh6J Hxdw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=GVDeaTKoSrOeCfd6nCXKEY/GIy0Kyct0/tmYk1UcIUw=; b=orYyt/KSISbj0rgKkwlpL6C50aW6ojYWaK64ab2xrVRlTt9tTbat88+cQ6foe6vQYo rJ8s2Hcy8GkMbp3bezWo6Ssqs9NRBk9HbHIkPpygVwoGQlZEx3CffGRGagdWHIXTFXwg B3yijwQ/xs1X7vxfgxv3JbXMRoquZ9+2H5kpiXDR2O8EUai4rmNSSXPED6eWr5ws7MnN jMzAEVxivM4wp6gzCs9HfuJ+gQmtXDWmLZiBi3rDPThmfIkoChUbRhKcIy1+94Vnc46E BDcZnLwt6tJc9voK4YZBSOWsXrtM7cPdbYeq8I2vcGLow9orFwcmwgaiZOCzA5PtYwTK wQWg== X-Gm-Message-State: ACrzQf3wPV3M3O253WqNXkPTXxoMdiEgOBJ+i3JOTzzpNQEL0B7SmRbs isCGDCNT8QT01CW6vbCA8lY= X-Google-Smtp-Source: AMsMyM6nZwydnbhiGjYYOg1vjURXDJppqkZDoIFpqjmqd3F6r8dH8h2ooGiNvrvceeA+xaHFsi1eUw== X-Received: by 2002:a63:8841:0:b0:461:24b7:a621 with SMTP id l62-20020a638841000000b0046124b7a621mr14679280pgd.277.1666321809230; Thu, 20 Oct 2022 20:10:09 -0700 (PDT) Received: from localhost.localdomain ([111.203.234.211]) by smtp.googlemail.com with ESMTPSA id f26-20020aa7969a000000b00561879b0f3asm13743395pfk.203.2022.10.20.20.10.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 20 Oct 2022 20:10:08 -0700 (PDT) From: Jintao Yin To: phillip@squashfs.org.uk Cc: bagasdotme@gmail.com, hsinyi@chromium.org, linux-kernel@vger.kernel.org, marcmiltenberger@gmail.com, mirsad.todorovac@alu.unizg.hr, nicememory@gmail.com, regressions@leemhuis.info, regressions@lists.linux.dev, srw@sladewatkins.net Subject: Re: BISECT result: 6.0.0-RC kernels trigger Firefox snap bug with 6.0.0-rc3 through 6.0.0-rc7 Date: Fri, 21 Oct 2022 11:09:24 +0800 Message-Id: <20221021030924.687-1-nicememory@gmail.com> X-Mailer: git-send-email 2.38.1 In-Reply-To: <41ef4b22-eea8-2d67-99d8-6aaae7d25ac1@squashfs.org.uk> References: <41ef4b22-eea8-2d67-99d8-6aaae7d25ac1@squashfs.org.uk> Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit On Thu, Oct 20, 2022 at 04:45:53PM +0100, Phillip Lougher wrote: > On 20/10/2022 14:55, Jintao Yin wrote: > > Hi all, > > > > After review the details of page actor, the tail bytes may be written to > > a temp buffer instead the last used page. So before diff would wrongly > > memzero a page which is not the tail bytes in. > > > > In this diff fixes it by caculation of the real index the trailing bytes > > in and check if the last used page matches this index. If the page is > > the real tail bytes in, then memzero the trailing bypte of the page. > > > > Please help test and any feedbacks are welcome. > > > > Thanks, > > This is a rediculously complex patch. Sorry, but, absolute NACK. > > Additionally, it is poor etiquette and pointless to fix an > already fixed issue with a _more_ complex patch. > > Phillip > Dear Phillip, I'd like to apologize to you for my serious breakages of code of conduct. And I had no intend to offend you. I'm new to this community and I will do my best to follow the code of conduct and keep with good etiquettes. Best Regards, Jintao