From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from outpost1.zedat.fu-berlin.de (outpost1.zedat.fu-berlin.de [130.133.4.66]) (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 33B241F3FE9; Thu, 21 Aug 2025 16:46:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=130.133.4.66 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755794769; cv=none; b=fS3li68+wKB01fwvqtoOTOO7hMdL0EO1+X/srXynni/Gpo3eNQKvcQWqA44XBLGUGStzv57C4xhFAVfyP1CVGpU6lG1NWZT0cehoLfhpbllmZfVrywFK8mnuk+M9eHF74Y7nR+F8agkXOOQCfUIbc3DMrBdYYyS7g+bT7RG7jNc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755794769; c=relaxed/simple; bh=I/Tl34IQszPYSGu6Nc7bOPUdLV3x2lP0DOwDq/ZmU88=; h=Message-ID:Subject:From:To:Cc:Date:In-Reply-To:References: Content-Type:MIME-Version; b=JsFzPgAJuCLpm4VB8v41FkBahoZFglv6+5uDFOHvAUxQ3ptHmAnZLVgKd+8DDRdE3AKWA3ksQrHFb3FTJ3nKYCE57dPm8eYtWEtiqliZFxiTv1SaHdjPpdKM+e3NU3vpwcfydA2ahXF+LJbpzjdJriSs9wDEV1tj/C/f1ZCKPQc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=physik.fu-berlin.de; spf=pass smtp.mailfrom=zedat.fu-berlin.de; dkim=pass (2048-bit key) header.d=fu-berlin.de header.i=@fu-berlin.de header.b=OIhElBT3; arc=none smtp.client-ip=130.133.4.66 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=physik.fu-berlin.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=zedat.fu-berlin.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=fu-berlin.de header.i=@fu-berlin.de header.b="OIhElBT3" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=fu-berlin.de; s=fub01; h=MIME-Version:Content-Transfer-Encoding: Content-Type:References:In-Reply-To:Date:Cc:To:From:Subject:Message-ID:From: Reply-To:Subject:Date:Message-ID:To:Cc:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:In-Reply-To: References; bh=nT6M89BssGCI89Lp5Hc0EB9rr0lMk+OkaA5nBVCLuZI=; t=1755794766; x=1756399566; b=OIhElBT3NlE8Jxm+g1GD/tv/bsBhJgI4rEFjPCco/gJn44HL8a38MR4j7hK79 cq7ydmtN++FSJbwrSSNeSIq2RlCPgsWvDDxfRLYjeDy7JFzlvqWpBOdDVBpfDW/SJ7WP4rJG9q3Xj okiykpTNX7+XfGSRH0C+2noHhRQnh69Fqzw4I4qrVRpsxWCQKAg+56qe7nENDUd8TKNKsOgxoWiqF OrgjFfvqZPLygxEclPKCvpiIF+tZgIify4W0HWQregvp5EotexsYIBmt/MsPXVZSS74CyE9EPWrE0 UVfMA3FQz+VY4+JAXqVt5dl5GV1W5yhiPLVMQHpKLAPTH9Egog==; Received: from inpost2.zedat.fu-berlin.de ([130.133.4.69]) by outpost.zedat.fu-berlin.de (Exim 4.98) with esmtps (TLS1.3) tls TLS_AES_256_GCM_SHA384 (envelope-from ) id 1up8N2-00000002OiL-0eUG; Thu, 21 Aug 2025 18:42:36 +0200 Received: from dynamic-077-183-203-224.77.183.pool.telefonica.de ([77.183.203.224] helo=[192.168.178.50]) by inpost2.zedat.fu-berlin.de (Exim 4.98) with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (envelope-from ) id 1up8N1-00000000urE-3mkh; Thu, 21 Aug 2025 18:42:36 +0200 Message-ID: Subject: Re: Found it - was: Re: [PATCH] sparc64: fix hugetlb for sun4u From: John Paul Adrian Glaubitz To: "Edgecombe, Rick P" , "andreas@gaisler.com" , "anthony.yznaga@oracle.com" , "davem@davemloft.net" , "david@redhat.com" , "sparclinux@vger.kernel.org" Cc: "agordeev@linux.ibm.com" , "osalvador@suse.de" , "linux-kernel@vger.kernel.org" , "will@kernel.org" , "mroos@linux.ee" , "ryan.roberts@arm.com" Date: Thu, 21 Aug 2025 18:42:35 +0200 In-Reply-To: <611a33b02282130d4015b5b8feeda8c46d249320.camel@intel.com> References: <20250716012446.10357-1-anthony.yznaga@oracle.com> <35f5ec4eda8a7dbeeb7df9ec0be5c0b062c509f7.camel@physik.fu-berlin.de> <7e1e9aa5-0529-4fb5-84fb-557b5cc1cd50@oracle.com> <38f4469f48e6d36fa92b445c8ecef7a440be43e6.camel@physik.fu-berlin.de> <2bcb018c8b237f7ab2356f4459e14ae81a6fec8b.camel@physik.fu-berlin.de> <2daaa0648e9bcca42bf7a76d90580725f44fb4bc.camel@physik.fu-berlin.de> <611a33b02282130d4015b5b8feeda8c46d249320.camel@intel.com> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable User-Agent: Evolution 3.56.2 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Original-Sender: glaubitz@physik.fu-berlin.de X-ZEDAT-Hint: PO Hi, On Thu, 2025-08-21 at 15:03 +0000, Edgecombe, Rick P wrote: > And actually one of the architectures that was broken was sparc, which go= t fixed in > d3c976c14ad8 ("sparc64: Fix regression in non-hypervisor TLB flush xcall"= ). John > was going to explore whether the fix might have been incomplete. Investigations regarding the origin of the problem are still ongoing. The i= ssue is definitely related to SPARC-specific mm code, more specifically the TLB man= agement code on Cheetah-based UltraSPARC systems. Adrian --=20 .''`. John Paul Adrian Glaubitz : :' : Debian Developer `. `' Physicist `- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913