From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A2F39FEFB5A for ; Fri, 27 Feb 2026 15:19:46 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [127.0.0.1]) by lists.ozlabs.org (Postfix) with ESMTP id 4fMsSd1FZWz2yFQ; Sat, 28 Feb 2026 02:19:45 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; arc=none smtp.remote-ip=148.163.156.1 ARC-Seal: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1772205585; cv=none; b=hZ6H1A+BxUeWN032rVbSOWEAdfDTlWnk5BGmRsJLrQIJX+MXAwa0eizd+JQ4AteBXGoCVQsSYgrQ6IdMxmCOOUX5RcmLThgAxkitUSCZDqEMThLEW72Xbac6K8i1/VnS9d3xif9Dyfkoerbz8wima2SYmc5DBBVZHeZH+ygmk8Z/xtBYZbNSm+6ylZtlald86bM8SZOqi4s0GdSnImQUr4DxTOiHbEGj7GvmAaGjgeh3/NwcTfv8+LU+bwqgWtLfADYDEclPLD0B1wkBcfES1rsTDN+IEEoDhFkRyl92AJsVos/f99IzjrmL1jyFcUhNktLTYA4KfXPGmopJqWtsfg== ARC-Message-Signature: i=1; a=rsa-sha256; d=lists.ozlabs.org; s=201707; t=1772205585; c=relaxed/relaxed; bh=6ie7j0ETZydojrLXiV55waTujL3xYchaVyY759cX0Wk=; h=Message-ID:Date:MIME-Version:To:Cc:From:Subject:Content-Type; b=PTWIFcXTRucS9g9eLkKLTEnuVmDKGYS6DTPMLJMxnsv1PJgVTIu8SfTKuLJEbcdbXeXzBm8SMxUY44sdXk67qQ7ZNk/qRqzHPGaJR5OzYP74uBykiphlRgs56iWo0JHwSrNIT+cHKpMBx7w0KumYYUhQq2KNKa01/H0LYCJaedHEOuVJKy2+qEZP143E1GuYFodjF1DrhmJm+Wnb8yM6f5Zm/sLxnnRvJxX/dlprMnWzo3xgUBriBLYFThvs4U294waDjFzuIJO4wOh7oysJzeaKfM5Xnpia5OI+hNj8eDI1TOVtnr4Tr/fCugtF162U/RrOcqjUkDbk4/3MxUXcPw== ARC-Authentication-Results: i=1; lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=Knxf/aNG; dkim-atps=neutral; spf=pass (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=sourabhjain@linux.ibm.com; receiver=lists.ozlabs.org) smtp.mailfrom=linux.ibm.com Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=linux.ibm.com Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ibm.com header.i=@ibm.com header.a=rsa-sha256 header.s=pp1 header.b=Knxf/aNG; dkim-atps=neutral Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=linux.ibm.com (client-ip=148.163.156.1; helo=mx0a-001b2d01.pphosted.com; envelope-from=sourabhjain@linux.ibm.com; receiver=lists.ozlabs.org) Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com [148.163.156.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange x25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4fMsSc1pLGz2xYw for ; Sat, 28 Feb 2026 02:19:44 +1100 (AEDT) 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 61REOpGm3172107; Fri, 27 Feb 2026 15:19:37 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=cc :content-transfer-encoding:content-type:date:from:message-id :mime-version:subject:to; s=pp1; bh=6ie7j0ETZydojrLXiV55waTujL3x YchaVyY759cX0Wk=; b=Knxf/aNGGkN1UJLS6JinFBaQgpznLPMlt9LAon9YaL7H mxGhAlmgwDD1pZ74uO4rZqAHDoBba5SwrZZG7HwhCvupDVa/yPOUf9G2lbefwXZi JHP2MuBo5Bit/i8LjS24CeVsWeRsOvvGWpIj+tpy27sFyQeK3NmIuJ7MJRNnzdNN wuobKHyq/Q4TfekGII44AxFTY9OrxNsfs4wMvoBeJIUBLtIpiNeKKfgeZSl8ILZa TDWjcsy9+XJgxUyaMJyHHRNMOC+H4CmPR5SBk6QxA+KVxpoXxVA3PmwLMD3R/Ltv 7ywJ/0pK1XBVEsAPRzrsQxUHykOKltPINv8nwV2Tzw== Received: from ppma11.dal12v.mail.ibm.com (db.9e.1632.ip4.static.sl-reverse.com [50.22.158.219]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 4cf4crda0w-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 27 Feb 2026 15:19:36 +0000 (GMT) Received: from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1]) by ppma11.dal12v.mail.ibm.com (8.18.1.2/8.18.1.2) with ESMTP id 61RF4wO7027794; Fri, 27 Feb 2026 15:19:36 GMT Received: from smtprelay07.fra02v.mail.ibm.com ([9.218.2.229]) by ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 4cfsr2ahuk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 27 Feb 2026 15:19:35 +0000 Received: from smtpav02.fra02v.mail.ibm.com (smtpav02.fra02v.mail.ibm.com [10.20.54.101]) by smtprelay07.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 61RFJWFr42270994 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 27 Feb 2026 15:19:32 GMT Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 0DCB820040; Fri, 27 Feb 2026 15:19:32 +0000 (GMT) Received: from smtpav02.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C3C2420043; Fri, 27 Feb 2026 15:19:29 +0000 (GMT) Received: from [9.124.211.61] (unknown [9.124.211.61]) by smtpav02.fra02v.mail.ibm.com (Postfix) with ESMTP; Fri, 27 Feb 2026 15:19:29 +0000 (GMT) Message-ID: <4c338a29-d190-44f3-8874-6cfa0a031f0b@linux.ibm.com> Date: Fri, 27 Feb 2026 20:49:28 +0530 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Content-Language: en-US To: "Ritesh Harjani (IBM)" , Madhavan Srinivasan , linuxppc-dev , Michael Ellerman Cc: Donet Tom , Hari Bathini , Mahesh J Salgaonkar From: Sourabh Jain Subject: powerpc/fadump: CMA init is failing Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-Reinject: loops=2 maxloops=12 X-Proofpoint-ORIG-GUID: tAjiTAn18PmSiVH73jyACStrzxevGv60 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwMjI3MDEzNSBTYWx0ZWRfXzl4Yk5QBELcY /csjJwDKGdsXolpCfBH2otERPBm0a58nl5MjMOzYjbLUxztICYGhL6+2IxlevW4SCRbYM3iDhe7 QTnFMMHRdGQ88sMDPCMYJenwjswaFXEZz+jwKA0WuwrgJmouFEkZ7jZFQncmnk7LGF61fgT/TUt iDpnQ68hbNy0+zqOgWE6LKzpDF5R98mIT1iJmWy054jmCFytjpQ2PK82yDwPKRW0s+7Zqc4u/tZ SbqdeQkoZTL1Ksz0mfy2Xu4vqd596EodgcyQ4al2NxfO9cJMf6cIvLake82VCS0pMIlA6O+mSgR fhRFSMyE2Lo2U2nn9U7adrxvIRcS6/ztVJCEdc5D0ynPCecnz7BsWa5Fe2JnUEM/FHWz+NwGZnR mTCGxZTDyF0eLgJqRRx3SrL6tGquVtyW82MXaz3UcPFNWz6s+XvAUK349y6z02gra/fAieeLk1m oWoy4XKzcTQ/90mmvFw== X-Proofpoint-GUID: gXTaiRpLPCX6tNTpgiTseeqyNbfGQh7c X-Authority-Analysis: v=2.4 cv=bbBmkePB c=1 sm=1 tr=0 ts=69a1b609 cx=c_pps a=aDMHemPKRhS1OARIsFnwRA==:117 a=aDMHemPKRhS1OARIsFnwRA==:17 a=IkcTkHD0fZMA:10 a=HzLeVaNsDn8A:10 a=VkNPw1HP01LnGYTKEx00:22 a=Mpw57Om8IfrbqaoTuvik:22 a=GgsMoib0sEa3-_RKJdDe:22 a=6I1ujiDytcYDFxb-EcoA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1121,Hydra:6.1.51,FMLib:17.12.100.49 definitions=2026-02-27_02,2026-02-27_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 bulkscore=0 adultscore=0 impostorscore=0 lowpriorityscore=0 priorityscore=1501 suspectscore=0 clxscore=1015 phishscore=0 spamscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2601150000 definitions=main-2602270135 I noticed CMA init for fadump crashkernel memory is failing. [    0.000000] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000] fadump: Failed to init cma area for firmware-assisted dump,-22 kernel command-line: BOOT_IMAGE=(ieee1275//vdevice/v-scsi@30000070/disk@8100000000000000,msdos2)/vmlinuz-7.0.0-rc1+ root=/dev/mapper/rhel_ltcden3--lp12-root ro rd.lvm.lv=rhel_ltcden3-lp12/root rd.lvm.lv=rhel_ltcden3-lp12/swap fadump=on crashkernel=3G Same issue with kdump CMA reservation: [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 200 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 100 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 50 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 25 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 12 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 6 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 3 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 1 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 0 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 0 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 0 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 0 MiB [    0.000000][    T0] cma: pageblock_order not yet initialized. Called during early boot? [    0.000000][    T0] cma: Failed to reserve 0 MiB [    0.000000][    T0] crashkernel CMA reservation failed: 200 MB requested, 0 MB reserved in 0 ranges kernel command-line: # cat /proc/cmdline noreboot crashkernel=200M crashkernel=200M,cma Should be easy to reproduce it with powerpc defconfig: make ARCH=powerpc defconfig The crashkernel CMA init for fadump and kdump happens in: arch/powerpc/kernel/setup-common.c -> setup_arch()     initmem_init();     /*      * Reserve large chunks of memory for use by CMA for kdump, fadump, KVM and      * hugetlb. These must be called after initmem_init(), so that      * pageblock_order is initialised.      */     fadump_cma_init();     kdump_cma_reserve();     kvm_cma_reserve(); Has something changed for pageblock_order initialization? - Sourabh Jain