From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 2DB85262BE for ; Tue, 29 Jul 2025 19:45:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753818332; cv=none; b=bevNTuFLN3e+8Uw5uGVMd+lC39ITi713M835p2b/EFttyIQCXL3onhXUdqwRx5tWVnrdS9hkmCjE7FP0skNQQKYhblv4plGOesAV9NhBnUJDBAfubz+aEDdq1JYUk+oQpvBte/gP25lq5D+pCngkk+Dj4RuKMDnsqxnwlySPQmE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753818332; c=relaxed/simple; bh=vTzbDa7dIDKdUm/QZ6RaN+6DxWgB9I1KjhWuIFaR328=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version:Content-Type; b=egX3H/75OVndNwdYefqcTqNhJWGPbHZ8kyH+ZBHuucGqo+oblkNISlCvGkSUqjccFa5FzFM5L9wuzBh8IiurZ+ASKr04JeoBuVqBqMf3/cNnEJJXks2DpAzWJOgsA3vMKNfDJwRjmtk3O9GMVfywpE0lOznTgmoEEaTgDVNCGxc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=tfStq+8+; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="tfStq+8+" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 464C7C4CEF6; Tue, 29 Jul 2025 19:45:31 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753818331; bh=vTzbDa7dIDKdUm/QZ6RaN+6DxWgB9I1KjhWuIFaR328=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=tfStq+8+QcrR4EYXoUocaLRGfA4nQBpuS8IsHnAwUC++x4wb08FNRuCRr2u5j6gOg ZM26OpaiL34y+kVMZ037x4Q9kthPKV4HmX6WxrvXYIoa4nFil2gEnmD/1l3LK0FZMk vYHnMXWt5ZUOLoTC2hn/j6YDr3Fh3Tfqaij1HzHyCUsVgMWs17If1KFMzfMIRTU5AI jFbH+CI8IJcSnXHxHxC4cEl3S+ccz8/C30eGjQp+4BToovceCwhWn3LDVrFsWiP2t5 lELkNjFumDfsJLCDLEg3bHKZF4Q+Om/Zjwaw996Ht/hKVpCi/R26HrF9CjIfd682ak A1aiawrRqWl8g== From: Sasha Levin To: stable@vger.kernel.org Cc: Sasha Levin Subject: Re: [PATCH 6.6.y] mm: khugepaged: fix call hpage_collapse_scan_file() for anonymous vma Date: Tue, 29 Jul 2025 15:45:29 -0400 Message-Id: <1753810432-a54c0d35@stable.kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250729090401.18684-1-acsjakub@amazon.de> References: Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit [ Sasha's backport helper bot ] Hi, ✅ All tests passed successfully. No issues detected. No action required from the submitter. The upstream commit SHA1 provided is correct: f1897f2f08b28ae59476d8b73374b08f856973af WARNING: Author mismatch between patch and upstream commit: Backport author: Jakub Acs Commit author: Liu Shixin Status in newer kernel trees: 6.15.y | Present (exact SHA1) 6.12.y | Not found Note: The patch differs from the upstream commit: --- 1: f1897f2f08b2 ! 1: 5f7ac915df1d mm: khugepaged: fix call hpage_collapse_scan_file() for anonymous vma @@ Metadata ## Commit message ## mm: khugepaged: fix call hpage_collapse_scan_file() for anonymous vma + commit f1897f2f08b28ae59476d8b73374b08f856973af upstream. + syzkaller reported such a BUG_ON(): ------------[ cut here ]------------ @@ Commit message Cc: Nanyong Sun Cc: Qi Zheng Signed-off-by: Andrew Morton + [acsjakub: backport, clean apply] + Cc: Jakub Acs + Cc: linux-mm@kvack.org ## mm/khugepaged.c ## @@ mm/khugepaged.c: static unsigned int khugepaged_scan_mm_slot(unsigned int pages, int *result, --- Results of testing on various branches: | Branch | Patch Apply | Build Test | |---------------------------|-------------|------------| | origin/linux-6.6.y | Success | Success |