From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 A01B31B3758 for ; Wed, 31 Jul 2024 14:15:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722435315; cv=none; b=B+Kv7LWMZa8S6UH1aTkqFLWDQ0WipTNh9RKCPB2eFslQ/39ZcvPnWCelwod+/sZ3yWlJP9jmvNKy5CQk8IYDoFyxmeRaUr6EiaydrKj6zi0/NYaxWzVq70xPwyIo3J77wK3CYJJoy3+Dr1+lzbJScrg+ioTplXaMacP0OXDKumw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1722435315; c=relaxed/simple; bh=J+LMvz9Wx/sbtipj3UJuhOh6MMDNixyLt0xfqWXQB1s=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=rZwxThCqE3Y0hNY+qE/wis/5SwfwBnJelgp6YnaoWbVaJlVce/pKoMvOEinpOYw6lwnTG7a3YX9pzxdIzPLUWIJIeyLsnkSIVKyv8gTyeX0OC3KMqAB4Y/2fAZ1GcWb54aGy5eXwKSJu7KcJvWiVa5PS5uOMPyu1GtwbmQ/kENQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=II6jRdgR; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="II6jRdgR" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=v2MjKDfUsFkxxPTojbHvkJty1eTdehfkI3cDRFuQ0fk=; b=II6jRdgRPQ0wHti8+960mxvn3f hRlgru/ycUkHCDI7r/gpvLOLwJZINr52KkTBAZSMnvp/nIcBWUpONqMsxV7zTIJVQV9OMZVxfxGpt +eq9FBYyDkUg60OZoT6lISPIxSBz6tkFkrX9SeSsQ9wvjO/5eyA5UaNpYuQCg17akwBv92iwWC81C 6EZcAwkvAK6xj8ZreTknzYS4hOJIP5DX+BedKFuaVwjjaerNyx7UdddWEfC4twndJmo3RPPTl2Dn6 sWlSH+MIyhOdetGJWPxYVSNtGZHpirHcn1j3ZlyoBHghMu5snR1QRAQcH31mi7JQe+AK755jAKbn+ d9049Fvw==; Received: from j130084.upc-j.chello.nl ([24.132.130.84] helo=noisy.programming.kicks-ass.net) by casper.infradead.org with esmtpsa (Exim 4.97.1 #2 (Red Hat Linux)) id 1sZA6e-0000000GDGs-0Mo7; Wed, 31 Jul 2024 14:15:08 +0000 Received: by noisy.programming.kicks-ass.net (Postfix, from userid 1000) id 1D8C9300820; Wed, 31 Jul 2024 16:15:07 +0200 (CEST) Date: Wed, 31 Jul 2024 16:15:07 +0200 From: Peter Zijlstra To: Linus Torvalds Cc: Guenter Roeck , Andy Lutomirski , Ingo Molnar , Peter Anvin , Linux Kernel Mailing List , Jens Axboe , the arch/x86 maintainers Subject: Re: Linux 6.11-rc1 Message-ID: <20240731141507.GX12673@noisy.programming.kicks-ass.net> References: <20240731103332.GX33588@noisy.programming.kicks-ass.net> 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-Disposition: inline In-Reply-To: <20240731103332.GX33588@noisy.programming.kicks-ass.net> On Wed, Jul 31, 2024 at 12:33:32PM +0200, Peter Zijlstra wrote: > On Tue, Jul 30, 2024 at 11:53:31AM -0700, Linus Torvalds wrote: > > > Definitely something wrong with the page tables. But where that > > wrongness comes from, I have no idea. > > [ 10.231081] CR0: 80050033 CR2: ffa02ffc CR3: 02bc6000 CR4: 000006f0 > > See CR3 being a user address.... but yeah, million dollar question is > how the fuck did that happen? Thomas just reminded me that CR3 is physical... duh.