From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) (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 677802FF17D for ; Fri, 22 Aug 2025 14:16:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=193.142.43.55 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755872219; cv=none; b=XWXrBC9+Q7MNz2+MmPVbnzOF9CJ6lNA7p8kkMmDfEOKVlNqHtmpr8xJE64usM03NLwOHCaiUjWnQUx6FFo1fSHfwER3jCMOX+tlIamGyLMbyUWlT4YmnkVanfYCU0l55pZ2dOJmWpojgV6P9uQ3HifURZFNtrVOejC1z0f4XosY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755872219; c=relaxed/simple; bh=DHEF/sRtEUfVZJrky/fG0g6fwC0YpUpOvdDoRBnU+Hw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=G0DlGuBxGb6gxlwAvdEEd+kZeQ3AuPpmFF3q4uOiJIXu60OigLefEK8tq244189eDxk7wnhKG2/g/dsBv1i2GLUZuod4GEsnNAC2m1llW1zSFlFn9opt+orH5Ec9dt6qQYgZes269HHyskXxrr9y7zfU2LLhun0zZm18ADt+FIU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de; spf=pass smtp.mailfrom=linutronix.de; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=2u/LSTZM; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b=PlE961fM; arc=none smtp.client-ip=193.142.43.55 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linutronix.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linutronix.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="2u/LSTZM"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="PlE961fM" Date: Fri, 22 Aug 2025 16:16:54 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1755872215; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=6qGPbFm6ev3FCh05T0AkxuGsgsnsJn4OeQyYmrseSXA=; b=2u/LSTZMjHbIT6aqK25yCTh5PO8YuoqK69duoqvhMzafxm4hSS1i2lKXDKwfVvdcBDuX3e r4bu5K0NMBJCS4ET7n8akpZiKel/16aKccBX6JbPFdUGudumsrO/3TmEZ5IFfGx8+Qj85N VJPdPTAXSPHU72bBynub/mWh3+kO1ElTKdzdqXMz5IpWINhdWWIZHeEpC96DqWPX6gb5qb g0cYdmYCLaZz5scetYu2cAM2lmhxj6bHaAaQ8XIh9IuC9q7XQUoX3c384NSlqSpByqw7XB 0Rz2Ra6DtY7tI+K2j2Nlh+1YjTLaEFp9v1lCoOHPSMGZMY0oPnLx4R6Y/EpeWw== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1755872215; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=6qGPbFm6ev3FCh05T0AkxuGsgsnsJn4OeQyYmrseSXA=; b=PlE961fMfFnaxi8inWU+/n24foRjQm9V8RMEpv1T721h8/nwmX7BX3BYY3DXCyO+C7XlQC sQQv11G4lFXMtiAw== From: Sebastian Andrzej Siewior To: Sean Christopherson Cc: Linus Torvalds , Borislav Petkov , Thomas Gleixner , Peter Zijlstra , x86-ml , lkml Subject: Re: [GIT PULL] locking/urgent for v6.17-rc1 Message-ID: <20250822141654.Sjoffo8F@linutronix.de> References: <20250809180207.GAaJeNHymvt6gaR5nY@fat_crate.local> 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=utf-8 Content-Disposition: inline In-Reply-To: On 2025-08-21 12:45:52 [-0700], Sean Christopherson wrote: > Piggybacking the futex private hashing attention, the new fanciness is causing > crashes in my testing. The crashes are 100% reproducible, but my reproducer is > simply running a variety of tests in parallel, i.e. isn't very debug-friendly, > and the code itself is black magic to me, so all I've done is bisect. > > I reported the issue on the original thread, but haven't seen any follow-up. > > https://lore.kernel.org/all/aJ_vEP2EHj6l0xRT@google.com I somehow missed it. Can you try rc2 with the patch I just sent? Sebastian