From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail.alien8.de (mail.alien8.de [65.109.113.108]) (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 9941126F2A6; Sun, 31 Aug 2025 15:40:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=65.109.113.108 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756654824; cv=none; b=Mw3Tan/ccip4kJhkCSQjLte9sLlBSE0ZkmusfmrB7qQdPgksqZOTY/vDraJPBxniF2wj9twvBDmSNUREWkS508NR1o9Du8O/XJWILYhF96TavP74Nxzkewcg/R1wCv8xVNhg7T1b+XUukZoCuxZOOj13sjn6XqR27S94jIy673s= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756654824; c=relaxed/simple; bh=4qYM50M1ruW12qVdEyVZT7wDFMW61qFZfd8Vcd3+Gl0=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=W8cFhCK6XZwjfRC+MZv1IxqN2JPpTPHbQQJ3oF50JmFsK1NY9VfYT1tk0dK9VpGj3TrZurFTDkSEXL9RUHaQjb46SQJ7D5WCCtLzzalRH/7lMELqnOsqPS9cqbf0A0LasWdLZGvWGrfRnUOi4qfgpdU+oLtd8vF+T5MMztAvtpk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de; spf=pass smtp.mailfrom=alien8.de; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b=gwaIVq4d; arc=none smtp.client-ip=65.109.113.108 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=alien8.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=alien8.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (4096-bit key) header.d=alien8.de header.i=@alien8.de header.b="gwaIVq4d" Received: from localhost (localhost.localdomain [127.0.0.1]) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with ESMTP id EAD3940E0192; Sun, 31 Aug 2025 15:40:17 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at mail.alien8.de Authentication-Results: mail.alien8.de (amavisd-new); dkim=pass (4096-bit key) header.d=alien8.de Received: from mail.alien8.de ([127.0.0.1]) by localhost (mail.alien8.de [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id bzt1d1lsJFp1; Sun, 31 Aug 2025 15:40:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=alien8.de; s=alien8; t=1756654814; bh=UevTnzICdteIzOhn6dJqcmMyhQOKhAKvJOp7WGbG2U4=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=gwaIVq4dv6B7A01+RclqqyndJe0kXjEldcveKKQe9JTqcLjjPN3+xLox+zK75ThUI C+qXuq8eHSghaezPramxtQe2MhrM/4LFQN6k/VGq2rFOy8Q1M9CrtOoJ13L5/uE5QZ zvAgskkXK7vW4gOcSH9wDiM+CkUN3ts76rnulUHy8BP3TujgALc5RSJLUY4QWlUhIq E94hEtN85FohOyQDMmgox9HXMgvODpagd2Jvi1z6EambcDZ4WNF5uVFQW54+vu6WqO 9LC77l9Rfo9ed/6zTVrdWGExvzCuGESOfvr/wD5zlkcwQAs0MlMjU1ZAKwgET6JK2b PEvD9mEFFEWsjkBK0QghH5sXxhyIg5DBzHM/kYOAFKXnCm/SYqoQ0X8BTZBDr47DUC qCIU5IrBC3xyenLoS9ELA7SbWdGlIJImXZdUfrYXPuWldtENzpga8WFCK3zAmwmz+o GhVFSvpJkyfmJC9NHW7ku70wLDV7QiRr4qZwNuhHzhrVu4XgVYmpfJSK6pDawDCsGS aSI8Z/bK9Sd4YHf89b12tUWbcKkgvqPBh/PymVaHm/q+6FwFVq862jeck/rbpQWpTH idZWYMSGlPHkoMNS/4hsynyGOhLSnLOo8nkFsWKAOj6N9RWfI3u6vgt4BiKwDrE2t1 QgjLZb5EvEgdFs6e2ZE9c3sI= Received: from zn.tnic (p5de8ed27.dip0.t-ipconnect.de [93.232.237.39]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail.alien8.de (SuperMail on ZX Spectrum 128k) with UTF8SMTPSA id 7C2A840E0174; Sun, 31 Aug 2025 15:40:01 +0000 (UTC) Date: Sun, 31 Aug 2025 17:39:41 +0200 From: Borislav Petkov To: Bert Karwatzki Cc: seanjc@google.com, Sebastian Andrzej Siewior , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rt-devel@lists.linux.dev, Andrew Morton , linux-mm@kvack.org, Jakub Kicinski , Peter Zijlstra , torvalds@linux-foundation.org, x86@kernel.org, tglx@linutronix.de Subject: Re: (Re)boot hangs and refcount errors on next-20250829 Message-ID: <20250831153941.GCaLRsvf1V_ST2GPAd@fat_crate.local> References: <20250831141426.2786-1-spasswolf@web.de> Precedence: bulk X-Mailing-List: linux-next@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <20250831141426.2786-1-spasswolf@web.de> On Sun, Aug 31, 2025 at 04:14:24PM +0200, Bert Karwatzki wrote: > I think I hit the the same error (and some more ...) when booting next-20250829 > on my amd64 laptop (no VMs and no kexec were used here): > > When I try booting next-20250829 on my debian stable(trixie) amd64 system the boot > process hangs every few attempts (without any log messages recorded). When the > boot process succeeds the following error message appears in dmesg: > > [ 8.337248] [ T44] ------------[ cut here ]------------ > [ 8.337250] [ T44] WARNING: kernel/futex/core.c:1604 at futex_ref_rcu+0xe8/0x100, CPU#6: rcuc/6/44 I believe that got fixed, pls try: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=locking/urgent which got updated to contain the fix for the warning above. -- Regards/Gruss, Boris. https://people.kernel.org/tglx/notes-about-netiquette