From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (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 62C1C33D4E4 for ; Fri, 19 Jun 2026 21:59:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.156.1 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781906392; cv=none; b=iCXOYVNfim61t0doYhAqeuVxLvSHAnarg4Gzwl/6sYqfdppVeHggpA3W3nG2sCEHjWNx+YAMORCENNGUhEs+OLsDq1jyNgLDcFLpVfTklOMfkN/v/bWt6R3sDw3NIjwJ23jq+fYFj597Ky8+caJtajsRZ5qetJMwnH7gzFoFxYQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1781906392; c=relaxed/simple; bh=pdn+y/K6SESnn7qyq4yYeNwfw6/pcr70geq6/WvPULw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=fijZfNwt1YNw9DV4X9U9Y7hTZk4TfJotMYiwO1cYaa8Y+tt0ZymHVfSctFP0G78xC1dUt/RTrDNzOwSphZgvPkA2cvvFj+C26CzH9pxePl4vXUn/52pxEmlGhVp9HMe8mAfqCVlf4aoO4IFntn6/sw93a0+CjHU9dHEY97xGQWg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; spf=pass smtp.mailfrom=linux.ibm.com; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b=MvQ+rn/0; arc=none smtp.client-ip=148.163.156.1 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.ibm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ibm.com header.i=@ibm.com header.b="MvQ+rn/0" Received: from pps.filterd (m0353729.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 65JLmCUc3609682; Fri, 19 Jun 2026 21:59:35 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=pp1; bh=YSSd86 g0JeDf6OIcdwDCvZKiMzoVmgXKISMxtkIXdv0=; b=MvQ+rn/0uNfsn++v5zMI5O 732XT4+sHJG0fiIEB/pVV1pmNqTSqF8kv0cXK1/0bDbrdyQuesNQvLl0FL+mGBds dvccABtKn+JSzr48wiWNco+dyYynM/3FbSGY00N7v13+zSXRReRYc1KL2Wx4WRlL H59FkvM8lM9M7KY/q9IXE3waGWtMNOTFfri+cly3VbHe5KpkLeLErwC2kiE4eJ8p CjRyv9JYdEUmVvlzXgd1Un/xRCDRgSzL0vffcFtPQwrMVw66KQH18cJt8uVMLUsw ZvukYdU2+ICMmMKaHpZqqrH3x1BWe9xr1xyXPksGP00WEgTdxOlPAu4FWRY6zxdA == Received: from ppma21.wdc07v.mail.ibm.com (5b.69.3da9.ip4.static.sl-reverse.com [169.61.105.91]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4euequfrd5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 19 Jun 2026 21:59:34 +0000 (GMT) Received: from pps.filterd (ppma21.wdc07v.mail.ibm.com [127.0.0.1]) by ppma21.wdc07v.mail.ibm.com (8.18.1.7/8.18.1.7) with ESMTP id 65JLngnC007540; Fri, 19 Jun 2026 21:59:33 GMT Received: from smtprelay06.fra02v.mail.ibm.com ([9.218.2.230]) by ppma21.wdc07v.mail.ibm.com (PPS) with ESMTPS id 4ev172jrg6-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 19 Jun 2026 21:59:33 +0000 (GMT) Received: from smtpav03.fra02v.mail.ibm.com (smtpav03.fra02v.mail.ibm.com [10.20.54.102]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 65JLxVhX24969472 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 19 Jun 2026 21:59:31 GMT Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id B863920043; Fri, 19 Jun 2026 21:59:31 +0000 (GMT) Received: from smtpav03.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id E00B120040; Fri, 19 Jun 2026 21:59:29 +0000 (GMT) Received: from Linuxdev (unknown [9.43.77.5]) by smtpav03.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 19 Jun 2026 21:59:29 +0000 (GMT) From: Madhavan Srinivasan To: mpe@ellerman.id.au, sourabhjain@linux.ibm.com, Adriano Vero Cc: npiggin@gmail.com, chleroy@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v3] powerpc/fadump: Add timeout to RTAS busy-wait loops Date: Sat, 20 Jun 2026 03:29:11 +0530 Message-ID: <178190618788.653308.3156372491592916149.b4-ty@linux.ibm.com> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260506222024.30352-1-adri.vero.dev@gmail.com> References: <20260419065039.23495-1-adri.vero.dev@gmail.com> <20260506222024.30352-1-adri.vero.dev@gmail.com> 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-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-Spam-Info: AW1haW4tMjYwNjE5MDIxMCBTYWx0ZWRfX6KkOETrSthlQ jc6mBWw5Ts9A+xFF2erzTWD1NAP4jpuDMjFviaUbpRoc6+6Fr1VoMZC4bV8OrI4lRyr3dxuQoFy p4sfj2Ze/dkgIjvxlZkJEo+fdB2i0EI= X-Proofpoint-ORIG-GUID: v79xoo0pw6M8hr9lwBBNAAW61sDjIbPc X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNjE5MDIxMCBTYWx0ZWRfXyBJoCMKh8Ady GP5nVT0FSggD+DKdY1kYMk+5/IO6IJH5e429OciTR1vAaZhc2tflzXTFvEbxj4LjB7o+9pEmQcK 7G1fJ3fOqUnALS5zkQvnvhXCxI0OYy8BoQCPAdVZh7ATEwzUhQyMsd8Lp0GTyaiTIYyn+Ud56/z DEFLvj/ErXbwtNLfFfRchFEAXG+sTutKPUqN5j6YMobPYyEGtnbkjRUJV3BGhMs+Njz2vJUWU2y wUfTm8z9pzVQxW5ZDxfoLgC4lU6EBROqw0X1bYXUag0+I+G0nWW1Utg6h4kDm6UyX3VYqWssRcF fC0ryG2QjS3ER4VE56gBJ32clBQc4z7y3o7fy9gAPdvwQXeVeAZsqWhH9IFLawx+x70Ph6hN5O4 BL1Q7Y+IP5RuyahJZaypBCRklerIfimtGv2b7nwkXEGkoKF7Kx/EXORPWh/SXjN95sh+vYKwfXd ZNGNdbbEERe9mUrk37Q== X-Proofpoint-GUID: N7bFnW8kuiknQINSqJgYA7MX7J3d9SQa X-Authority-Analysis: v=2.4 cv=L9gtheT8 c=1 sm=1 tr=0 ts=6a35bbc7 cx=c_pps a=GFwsV6G8L6GxiO2Y/PsHdQ==:117 a=GFwsV6G8L6GxiO2Y/PsHdQ==:17 a=IkcTkHD0fZMA:10 a=FelO9ux0wxsA:10 a=VkNPw1HP01LnGYTKEx00:22 a=RnoormkPH1_aCDwRdu11:22 a=uAbxVGIbfxUO_5tXvNgY:22 a=VwQbUJbxAAAA:8 a=Sxv089hMkP26gHWbFUoA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-06-19_05,2026-06-18_03,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 bulkscore=0 impostorscore=0 malwarescore=0 clxscore=1015 adultscore=0 phishscore=0 lowpriorityscore=0 suspectscore=0 priorityscore=1501 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2606190210 On Thu, 07 May 2026 00:20:23 +0200, Adriano Vero wrote: > The ibm,configure-kernel-dump RTAS call sites in > rtas_fadump_register(), rtas_fadump_unregister(), and > rtas_fadump_invalidate() polled indefinitely while firmware returned > a busy status. A misbehaving or hung firmware could stall these paths > forever, blocking fadump registration at boot or preventing clean > teardown. > > [...] Applied to powerpc/next. [1/1] powerpc/fadump: Add timeout to RTAS busy-wait loops https://git.kernel.org/powerpc/c/b3580dd1c68cec23d44a39c439e18b4686c13480 cheers