From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out-188.mta0.migadu.com (out-188.mta0.migadu.com [91.218.175.188]) (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 C4392232785 for ; Wed, 22 Oct 2025 15:35:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=91.218.175.188 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761147321; cv=none; b=fDnh96XBlIyBp9CfGH9vgTjJ/921bOjvRytsXvzrXEbU+amvN3+pswTUV3iAJWNFmGVVEO/2skZTG+/wsteUJGgwxC7Qyt5xRJmnuQEa8f9quNX0JuMpyGFJHb3zO2GKoyUQ8Y3lZ0mbgpp5saubm072dnsGapdxqc6Aghf0Zzk= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1761147321; c=relaxed/simple; bh=uf/k+/AEgekOeLH9j2kWf0SPl+SLHvNUSxmDTt1LbNQ=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Rf5exFNMBRuoYAQn9L+ZNYpdAetDfL+au6Nv2xeQ8QrzsturojIS79qkmdlldEVIrlugh4LdB+nsgsMw8Sl7lPCng0pitwyIOMFS36C0lRB0kQCn+tWbmgvzj4e2BpGejoK2lT8ejkcwEHsijKTDeMusO+7zxI6TtFs6LoAuhhg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev; spf=pass smtp.mailfrom=linux.dev; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b=YziLEkxW; arc=none smtp.client-ip=91.218.175.188 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.dev Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.dev Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.dev header.i=@linux.dev header.b="YziLEkxW" Message-ID: DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1761147317; h=from:from: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:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=8iYpTFR7g26YCYkL8ooNPprAkKOl1jlVIj+zsrDxsYk=; b=YziLEkxWruWwReycddBdGYvvFQvSScqhH4PRwz5NsTxfUgA5M2Ik2/DOYJ2msrqta3lwRo VOUyIzGYF0ntgG0DnOQvf1j22qXsR+0dwVanf3QPMHHTnWVNtybgtQ1rDkb69NKNISvEfO hXFo+H36RfsB5BL5IWxNrSau7VJIxc0= Date: Wed, 22 Oct 2025 23:35:05 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Subject: Re: [PATCH 6.1.y] selftests/mm: Move default_huge_page_size to vm_util.c To: Greg KH Cc: stable@vger.kernel.org, akpm@linux-foundation.org, david@redhat.com, lorenzo.stoakes@oracle.com, shuah@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Lance Yang References: <20251022055138.375042-1-leon.hwang@linux.dev> <2025102230-scoured-levitator-a530@gregkh> <2025102210-detection-blurred-8332@gregkh> <70f8c6a1-cbb5-4a62-99aa-69b2f06bece2@linux.dev> <2025102241-clubbed-smirk-8819@gregkh> Content-Language: en-US X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. From: Leon Hwang In-Reply-To: <2025102241-clubbed-smirk-8819@gregkh> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Migadu-Flow: FLOW_OUT On 2025/10/22 22:26, Greg KH wrote: > On Wed, Oct 22, 2025 at 09:34:52PM +0800, Leon Hwang wrote: >> >> >> On 2025/10/22 16:20, Greg KH wrote: [...] >> >> Hi Greg, >> >> After checking with 'git blame map_hugetlb.c', the issue was introduced >> by commit a584c7734a4d (“selftests: mm: fix map_hugetlb failure on 64K >> page size systems”), which corresponds to upstream commit 91b80cc5b39f. >> This change appears to have caused the build error in the 6.1.y tree. >> >> Comparing several stable trees shows the following: >> >> - 6.0.y: not backported* >> - 6.1.y: backported >> - 6.2.y: not backported* >> - 6.3.y: not backported* >> - 6.4.y: not backported* >> - 6.5.y: not backported* >> - 6.6.y: backported >> - 6.7.y: backported >> >> Given this, it might be preferable to revert a584c7734a4d in 6.1.y for >> consistency with the other stable trees (6.0.y, 6.2–6.5.y). > > Ah, yeah, it looks like this commit was reverted from other stable > releases, as it shows up in the following releases: > > 4.19.310 4.19.315 5.4.272 5.4.277 5.10.213 5.10.218 5.15.152 5.15.160 6.1.82 6.6.18 6.7.6 > > So a revert would be fine, want to submit it? > Got it. I'll send a patch to revert it later. Thanks, Leon