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 kanga.kvack.org (kanga.kvack.org [205.233.56.17]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7ECC1D29FB2 for ; Thu, 4 Dec 2025 19:36:58 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id C7A4D6B0032; Thu, 4 Dec 2025 14:36:57 -0500 (EST) Received: by kanga.kvack.org (Postfix, from userid 40) id C2A7E6B00DA; Thu, 4 Dec 2025 14:36:57 -0500 (EST) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id AF2DD6B00DB; Thu, 4 Dec 2025 14:36:57 -0500 (EST) X-Delivered-To: linux-mm@kvack.org Received: from relay.hostedemail.com (smtprelay0014.hostedemail.com [216.40.44.14]) by kanga.kvack.org (Postfix) with ESMTP id 9B2AA6B0032 for ; Thu, 4 Dec 2025 14:36:57 -0500 (EST) Received: from smtpin18.hostedemail.com (a10.router.float.18 [10.200.18.1]) by unirelay05.hostedemail.com (Postfix) with ESMTP id 422A5586F1 for ; Thu, 4 Dec 2025 19:36:57 +0000 (UTC) X-FDA: 84182796474.18.9CC2661 Received: from mail-ej1-f54.google.com (mail-ej1-f54.google.com [209.85.218.54]) by imf30.hostedemail.com (Postfix) with ESMTP id 342408000A for ; Thu, 4 Dec 2025 19:36:54 +0000 (UTC) Authentication-Results: imf30.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=google header.b=GV41TixF; dmarc=none; spf=pass (imf30.hostedemail.com: domain of torvalds@linuxfoundation.org designates 209.85.218.54 as permitted sender) smtp.mailfrom=torvalds@linuxfoundation.org ARC-Seal: i=1; s=arc-20220608; d=hostedemail.com; t=1764877015; a=rsa-sha256; cv=none; b=0Y+lhOTM76dhUUYQpv/JML1OtMIfFSC7u6c6myUV6M0HWK6fzy7huvT4gdLJqWOSsQOQJ0 Gzs8XgP7Nz7ZQ2H9+pOWrxXyJB2RkMFo0eYs3s3zQcMGBnsidxQaS4olmlcvxeYglzmOjY CVpYEYAcPKcFXRkZbd+bV5kcArnxd4Q= ARC-Authentication-Results: i=1; imf30.hostedemail.com; dkim=pass header.d=linux-foundation.org header.s=google header.b=GV41TixF; dmarc=none; spf=pass (imf30.hostedemail.com: domain of torvalds@linuxfoundation.org designates 209.85.218.54 as permitted sender) smtp.mailfrom=torvalds@linuxfoundation.org ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=hostedemail.com; s=arc-20220608; t=1764877015; h=from:from:sender:reply-to:subject:subject:date:date: message-id:message-id:to:to:cc:cc:mime-version:mime-version: content-type:content-type:content-transfer-encoding: in-reply-to:in-reply-to:references:references:dkim-signature; bh=hfmTeirb3cJ8WH4Elb1KL8rsHozjiNCHYSp9+LExjhM=; b=21xY3vVU+xicwW3etcX15uDMFM2bf/I19Z4+g2sl8HiqT4zLd49WgTEwlK7Bkq4lK1rRhB EOqKWjavMHUCrdF6FqhPt28lL6MhLGBMLLSwXjzH+X2YJIq9MnVNJD7nbkfDr9RcdZ6eXC vwZElNjdpqdmxgyiN/YdL3scSCgil+s= Received: by mail-ej1-f54.google.com with SMTP id a640c23a62f3a-b73a9592fb8so355751666b.1 for ; Thu, 04 Dec 2025 11:36:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux-foundation.org; s=google; t=1764877013; x=1765481813; darn=kvack.org; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:from:to:cc:subject:date:message-id:reply-to; bh=hfmTeirb3cJ8WH4Elb1KL8rsHozjiNCHYSp9+LExjhM=; b=GV41TixFKIW0qXo4kSbGOavPUB65abPTuffmjQQhWzpPuT0EbQ6e5FiojAREfFJ6dn bksRZXfUDvDgfmZse6Y8FIisYJVCl10mFGu8pT8U2SRLENF5MGpe2fuoEyV+p+yNoj3H 4kxDfNudeC4KWtPOG3oaVJyLH9fhWXpiCU3MY= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1764877013; x=1765481813; h=cc:to:subject:message-id:date:from:in-reply-to:references :mime-version:x-gm-gg:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=hfmTeirb3cJ8WH4Elb1KL8rsHozjiNCHYSp9+LExjhM=; b=nRBVQZ+fhzGTeBINopS2PTWW0eBos9qKmpzEqEYe+Apoo0b4cBbVJ59v+O91MOG36l ny5ISuf3bYKjcmOWig+CujvZfrhfu61PdxABkh31VCz0vjW7x9WvEPloeDL/W5RvTpXF SUH+YnDWb7RWaQ95r7S671m+U3eIgoxt99CwoAWLLes6/1Lvp2M0BLsJ6ZMnujG4WLLm JNwgpWbHw2+gbdjim7Gl41hHPM82bqw4WGQPn2sx1ekbwADh8ETnbhpLdyYBRLTRB+LE pVVCGd9iFdBZt9tyH51DAOZZHreYpeS3bqCozj4yGPQuGCquX3zFQ0VTPzg8YFUXRSdy l2sA== X-Forwarded-Encrypted: i=1; AJvYcCVF33rccHEceHnbCYB2s190IF9MsXeSs2FgWknwAmnsJ9plsquYhYYTOQdBqR1q1WNhVQ2fSY00EA==@kvack.org X-Gm-Message-State: AOJu0YxnRJIB303Bie1NsKyuzlDnn6+p3qg8j2cnBnKgDJ+2kUXqgyBG b9RqHSuGs8XzMLnH9sxktW0qNs0i1MgZCbZInic76SBLrNSrTtl3PPH+D1Ppp91GSC24KuufJPQ P7bbuxyI= X-Gm-Gg: ASbGnct8/9lPTjb1a+pFMvJzfw8+BLxkIH+2uENEgZHWyJAp0FfQi2We3SRUgBXjTI2 Un8rg+WWiinQZsiumTxdrjG4tgDRK1scY1/uQcYaGkl1ykmNqtkT150kUel+AOfk9RSvFLaOZvo dhtdKd/C8b02JozywBIyx8r+0T8lLWAJo2ARQh0T61dogWnWTn662zXVCgxdzM7vcfWvVkrNS3l t0ooN6dXWrH2Vc1jmp3frbbvI+/vWK1a1bxBlo/oGK8QPCPh5EUCOX7lwol0ulndAMvalhNfVc+ fSsZuRHgaMhEoVXqwYGXPa/JVHOC4OY7ynxqnq0w4MPSDsTLc5ae5Fg8MWfuaCF/Hd1UeGLsuHk mOk0snnxq3YWO5KX4Nk1wmtNd6BnCKM2Czh3ySPANREJ3IhotLhzIxnF9YngO7tulLIipITblZb /U4Ztjy7KGnyEtQZeGDsbI+YzHE5sanNHYQU7Fq6h4CEZwClnPMR4jfEpAfz+LNN8Eb1wkgSA= X-Google-Smtp-Source: AGHT+IFzlFcNZr1F/uKz7U6R/P8Zk9RIPsGSltDu5EK2nuCSLEPHH2ffWz4V841uTFx20cQKU+VsCg== X-Received: by 2002:a17:907:9808:b0:b75:5ac3:5323 with SMTP id a640c23a62f3a-b79eb66859amr460833466b.25.1764877013282; Thu, 04 Dec 2025 11:36:53 -0800 (PST) Received: from mail-ed1-f43.google.com (mail-ed1-f43.google.com. [209.85.208.43]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-b79f4498d2fsm200230266b.21.2025.12.04.11.36.51 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 04 Dec 2025 11:36:51 -0800 (PST) Received: by mail-ed1-f43.google.com with SMTP id 4fb4d7f45d1cf-64320b9bb4bso2622353a12.0 for ; Thu, 04 Dec 2025 11:36:51 -0800 (PST) X-Forwarded-Encrypted: i=1; AJvYcCWizEdyrIHwGwUMTAFJBk6BxfDIdR1xKGA8ZsKodV2CJ3ljjzZdEYB0hPJBAx92WQjNqgJQEnoDJg==@kvack.org X-Received: by 2002:a05:6402:5189:b0:640:9997:a229 with SMTP id 4fb4d7f45d1cf-647a69e6acbmr4507453a12.3.1764877010898; Thu, 04 Dec 2025 11:36:50 -0800 (PST) MIME-Version: 1.0 References: <74032153-813a-4a40-8363-cce264f4d5ea@linuxfoundation.org> <1eb24816-530b-4470-8e58-ce7d8297996c@roeck-us.net> <0425d7b4-76e4-4057-83a5-a7b17a051c54@linuxfoundation.org> <9d520a1d-0b8d-4d30-b29f-230fc0f92b8a@linuxfoundation.org> <1f31b86d-283c-4878-92d0-ab90aed0c58d@roeck-us.net> <5af4522e-30ab-4eec-a861-c2760cdabd4f@linuxfoundation.org> <2bc690ca-fa57-46fa-949b-28b5441cd364@kernel.org> In-Reply-To: From: Linus Torvalds Date: Thu, 4 Dec 2025 11:36:33 -0800 X-Gmail-Original-Message-ID: X-Gm-Features: AWmQ_bl15pRGGXuHFcuQkuAPhnzgKRm8fbeljiIJE8EGq1gNKXLgKf_oozB3SVU Message-ID: Subject: Re: Linux 6.18 amdgpu build error To: Shuah Khan Cc: "David Hildenbrand (Red Hat)" , akpm@linux-foundation.org, Alexander Deucher , Linux Kernel Mailing List , amd-gfx@lists.freedesktop.org, dri-devel , Guenter Roeck , Linux Memory Management List Content-Type: text/plain; charset="UTF-8" X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: 342408000A X-Stat-Signature: 4yhacrk5qhouo66b6nda1wbxqrux6sn8 X-Rspam-User: X-HE-Tag: 1764877014-788243 X-HE-Meta: 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 UaMmUIZH vACreSaJS+y7R/p0u1Upzz/jH2rnhImpUllh39JpP8pmZCJzCOQsZhliV/VZ/YzOUGO3g5r24oamcYTIdyqvd2H5PZFkHGpaVZM0sRFIcRgm1nqWGwaFE571z0ByCInuSoKuWTTgJT6mUvKz4uCOkdKnt0H0B57UVpsP4s9BOY7t5UeF68UPtwgXWAx2iYRIevf6LGzgp+0YCqJI9BzWniIsDaH+E4Q+d68QV4/oJ/JiVO5+5+4oCMlmB4p36g4EVjb3UD6YNTC5RPi85EMZJypfmOw== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Thu, 4 Dec 2025 at 09:40, Shuah Khan wrote: > > This commit has impact on all architectures, not a narrow scoped > powerpc only thing - it enables HAVE_GIGANTIC_FOLIOS on x86_64 > and changes the common code that determines MAX_FOLIO_ORDER in > include/linux/mm.h So I suspect your bisection might not have worked out, and there might be two different things going on. In particular, hugepages were broken in 6.18-rc6 due to commit adfb6609c680 ("mm/huge_memory: initialise the tags of the huge zero folio"). That was then fixed for rc7 (and obviously final 6.18) by commit 5bebe8de19264 ("mm/huge_memory: Fix initialization of huge zero folio"), but the breakage up until that time was a bit random. End result: if you ever ended up bisecting into that broken range between those two commits, you would get failures on some loads (but not reliably), and your bisection would end up pointing to some random thing. But as mentioned, that particular problem would have been fixed in rc7 and in final 6.18, so any issues you saw with the final build would have been due to something else. Can I ask you to try to re-do the bisection, but with that commit 5bebe8de19264 applied by hand - if it wasn't already there - every time you build a kernel that has adfb6609c680? That way the bisection wouldn't be affected by that other known bug. Linus