From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-ed1-f52.google.com (mail-ed1-f52.google.com [209.85.208.52]) (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 0E1A244C50F for ; Fri, 31 Jul 2026 17:04:58 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.208.52 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785517500; cv=none; b=tMXQddaHMqZ8qPw+ovUPpE9wzRRNUToybXa2yaujepNjeJeFQ0j7kPyIx+HVY9s00RNTNi1vtrmBWOs6b2dLr9UYB0ZeuP8TtCOeKTSPJiWzD76gXTpMDgAU6IhDYbNhk/t6g4gs3TZuVR4xjr3ImwBolrWlYRFrYIGFeO2Qyqo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1785517500; c=relaxed/simple; bh=8G22stH9+mabi49WnBtjC7Xjo+sg3VNSjxd7j6C5NtQ=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=uvlhXa/TSqVsIqVHenlqxFL02UwOEcXAoZtBXZ0ZUFVM0PQNhSUfa58PZIrY7tq5dFT45GxXEkM8i1scJXxtsxCa9eYSxK3fFJal6lVFiutEm9dSPgHkW8TgnoHH4h+w9TGknZ56NW8FLXzF95gHc/vvCXtAvb6HX+upGujPmgA= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=KjgL8yDU; arc=none smtp.client-ip=209.85.208.52 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KjgL8yDU" Received: by mail-ed1-f52.google.com with SMTP id 4fb4d7f45d1cf-698ae09e356so2036994a12.2 for ; Fri, 31 Jul 2026 10:04:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1785517497; x=1786122297; darn=lists.linux.dev; h=content-disposition:content-type:mime-version:message-id:subject:cc :to:from:date:from:to:cc:subject:date:message-id:reply-to :content-type; bh=K/G26UF84bxEx5MK97aH+lyUa5pLQNuqoVNWR4lJkkc=; b=KjgL8yDUo2P8kACknBiplXxrPwd2b2EGDBETpwtynlu+i52lG3XiFN/T4Vgg5Q5Ncv OktO8wAsoIOVsFgdO+sPJps4BLMLfwPU5isk42edV9yshgy5UPRfNH5DWFZVP/sFaY+J PbQeQrW1+eVTXov1zE3nCVHkhMWOfuEiJd7GFe4spOqwdd12nUrfUzfw/Hxn+3PLJg6d fJwZ6exPCr7oaRnUj9FU89JEOqnTiDnsK+AfwGlSf97rEGyBCEiBQojv+qK4elrAzXa2 /34EYDBVq7DKnG3Jdo6svgwQeyhSJvbeUzLfRI7kYDLIZHg1oMpyBVvB8gEGHppCN7Pn G/uw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1785517497; x=1786122297; h=content-disposition:content-type:mime-version:message-id:subject:cc :to:from:date:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to:content-type; bh=K/G26UF84bxEx5MK97aH+lyUa5pLQNuqoVNWR4lJkkc=; b=kBrNUpBwrzv4MSFvPkBIGF6FfQrCn3Jjbsj/q3QYhq/3t6sxE7PcqmDrL/PMWAZ5sF duCpBiycM2hzAdttuM7v+VliCY+NCi91hOw5DrfHCU2GL7frCK369eE2NBnVA0S9h2Pz IE4Qo1yMsa/xgKTnD0gApntmzqXxLR/7kO3YzOMwcNia+84lvvnf7yEox+xYAXJoGoUU bMKi/yEPSh7zjlyJRWPxl1+K0X3FNrgerXerGDnFhz+V+lbnvPJC9bHO8aaJf80hy5EL nuxOF0Z8DG/iGGr2yvH57LoXNJqNNVAjyOXKIduATo8lwmGHNxSrelCnadFyIG5aTwSG 3Hdw== X-Forwarded-Encrypted: i=1; AHgh+RpnWvAZc0Q6hcXYIwk+jQx2y0rGg3579cy8ytJTG5lYlGR9xlAUvQzR9SAGVVjW4SCdOMYkVvT5nP2k4A==@lists.linux.dev X-Gm-Message-State: AOJu0YxlNFKN4zhGAwDRVRb+x8/BmGQW32xsJwugHJB0IfvxbR0y9Ly3 tLP9oLSgJujSc5mVGZNL9gsZMcoGRULvrO+k3unrAZFhHKFBjgDdVS0A X-Gm-Gg: AR+sD12z5TObYq5LKDBETmR089/diGEwOwDNWO19ZaSeLlrbNVBRtyQj9JyBH0lsgVW rMQ17p4i65jeJ5dciAdPZzldr5AMzvxPiLMzpNderemxF5kLsaevJJRkEgBk4ANMnr2cP9IimY4 2ndqV4boQFvBDf6eK1Gt9fLL1IJDvVAstjj4OYJg+HRchB3a2fh7gu7KrhWuqtc9tjB8Pc1Yxja aRKPqXElQJ4rImyrgN+4Itk1BnY+DEaPJvEUwCVOx2lHGkwUk4BgSydcMNX/jasTEP5J6KF3T00 Zh6lBfP9zePipAHt61aHCIhwc8Yp91g825RvA2EhRZULZ/zJOjDaVdrYqp6CUvXOyrRS4PLsvUB d4MEOLykvdJ+zWRoMocmMVYj9YO87eoE1Z10m8cPazDvAUlxalZfjjcrvayLJW8xMbSS2ljBlDS 6fASlAZTbKtOmyO0lwCTZsGlzQwt9IEj1Q4YtImAbjKpWaMCJVG7b4Qvw1iXL2wxUbp6R7AoYM3 ROvk/9u X-Received: by 2002:a05:6402:44da:b0:69a:b38d:403c with SMTP id 4fb4d7f45d1cf-6a0a7c6b782mr264208a12.7.1785517496865; Fri, 31 Jul 2026 10:04:56 -0700 (PDT) Received: from debian.local ([2a0a:ef40:e13:1601:a8d:2d:6c37:dbbd]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-47fd456a6besm6602316f8f.22.2026.07.31.10.04.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 31 Jul 2026 10:04:56 -0700 (PDT) Date: Fri, 31 Jul 2026 18:04:54 +0100 From: Chris Bainbridge To: emmanuel.grumbach@intel.com Cc: johannes.berg@intel.com, miriam.rachel.korenblit@intel.com, linux-wireless@vger.kernel.org, regressions@lists.linux.dev Subject: [REGRESSION] iwlwifi IO_PAGE_FAULT and Master Disable Timed Out Message-ID: Precedence: bulk X-Mailing-List: regressions@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Hi, 0eaa1f245ac0 ("wifi: iwlwifi: mvm: don't support the reset handshake for old firmwares") introduced an intermittent boot regression on my laptop: [ 15.974991] iwlwifi 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000a address=0xbe9f5000 flags=0x0000] [ 15.976184] iwlwifi 0000:01:00.0: AMD-Vi: Event logged [IO_PAGE_FAULT domain=0x000a address=0xbe9f5400 flags=0x0000] [ 15.978501] iwlwifi 0000:01:00.0: Master Disable Timed Out, 100 usec The commit only contains: + /* Those firmware versions claim to support the fw_reset_handshake + * but they are buggy. + */ + if (IWL_UCODE_MAJOR(mvm->fw->ucode_ver) <= 77) + trans->conf.fw_reset_handshake = false; The if condition is evaluating true on my laptop despite using firmware ty-a0-gf-a0-89.ucode. So I suspect this is not the correct way to check the firmware version? Also comment #21 on bugzilla.kernel.org bug #220600 (which this commit was supposed to fix) reports the same "Master Disable Timed Out" error (although no IO_PAGE_FAULTS, probably the bad memory access is not caught without iommu=strict). #regzbot introduced: 0eaa1f245ac03ed0c6394159360532726f666811