{"id":2189407,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2189407/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-ext4/patch/20260127-origin-dev-v1-1-cafda25e307f@amlogic.com/","project":{"id":8,"url":"http://patchwork.ozlabs.org/api/1.2/projects/8/?format=json","name":"Linux ext4 filesystem development","link_name":"linux-ext4","list_id":"linux-ext4.vger.kernel.org","list_email":"linux-ext4@vger.kernel.org","web_url":null,"scm_url":null,"webscm_url":null,"list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260127-origin-dev-v1-1-cafda25e307f@amlogic.com>","list_archive_url":null,"date":"2026-01-27T09:34:10","name":"ext4: EXT4_I(sbi->s_buddy_cache)->i_state_flags is not initialized","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"9b54fb3087e1855b5fb70c881f8128cc185afc8f","submitter":{"id":92515,"url":"http://patchwork.ozlabs.org/api/1.2/people/92515/?format=json","name":"Jiucheng Xu via B4 Relay","email":"devnull+jiucheng.xu.amlogic.com@kernel.org"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/linux-ext4/patch/20260127-origin-dev-v1-1-cafda25e307f@amlogic.com/mbox/","series":[{"id":489872,"url":"http://patchwork.ozlabs.org/api/1.2/series/489872/?format=json","web_url":"http://patchwork.ozlabs.org/project/linux-ext4/list/?series=489872","date":"2026-01-27T09:34:10","name":"ext4: EXT4_I(sbi->s_buddy_cache)->i_state_flags is not initialized","version":1,"mbox":"http://patchwork.ozlabs.org/series/489872/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2189407/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2189407/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","linux-ext4@vger.kernel.org"],"Delivered-To":["patchwork-incoming@legolas.ozlabs.org","patchwork-incoming@ozlabs.org"],"Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256\n header.s=k20201202 header.b=WxTms2fz;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=ozlabs.org\n (client-ip=150.107.74.76; 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arc=none smtp.client-ip=10.30.226.201"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org;\n\ts=k20201202; t=1769506452;\n\tbh=L+QIuse+ozhQ0Fo/DWNk4BPyA1lKRir4oBdAXLHS+Hs=;\n\th=From:Date:Subject:To:Cc:Reply-To:From;\n\tb=WxTms2fzvAFF1S+pyQW2k6hIKzPkz5PkcOUIv6zVrHht4IVh8BEVz70JdQenuhx3i\n\t c1tJIX7aGh+aGYTAlrbjjCIK+CXpicfSFRui2erbcdngFpeTvyKQCE/Zlm5JIKHACj\n\t tIXuTiAXNGeuL3cMHnBQtnLXaRonRcRgEbgrbD5vRUJkjdp60IjS6xCNgE+IMvYiH0\n\t QY0wfkCxw6G+76bMNK8uKf5X5UI4M156jfVInVPjqt14PAymVpHWy0uLuEWNLM7WUb\n\t HCchBeq2Xzwd2PnM5R10ITQ8To/GlSEN7XvSEHYmR4uB8/XRuYokb49B0wkun1+Oqk\n\t qu8Ta1TTDcNaQ==","From":"Jiucheng Xu via B4 Relay ","Date":"Tue, 27 Jan 2026 17:34:10 +0800","Subject":"[PATCH] ext4: EXT4_I(sbi->s_buddy_cache)->i_state_flags is not\n initialized","Precedence":"bulk","X-Mailing-List":"linux-ext4@vger.kernel.org","List-Id":"","List-Subscribe":"","List-Unsubscribe":"","MIME-Version":"1.0","Content-Type":"text/plain; charset=\"utf-8\"","Content-Transfer-Encoding":"7bit","Message-Id":"<20260127-origin-dev-v1-1-cafda25e307f@amlogic.com>","X-B4-Tracking":"v=1; b=H4sIAJGGeGkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE\n vPSU3UzU4B8JSMDIzMDQyMz3fyizPTMPN2U1DJdyzQLE0Nj0yRLU1NTJaCGgqLUtMwKsGHRsbW\n 1AP5MSmpcAAAA","X-Change-ID":"20260126-origin-dev-9f84135b9555","To":"Theodore Ts'o ,\n Andreas Dilger ","Cc":"linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org,\n stable@vger.kernel.org, jianxin.pan@amlogic.com, tuan.zhang@amlogic.com,\n Jiucheng Xu ","X-Mailer":"b4 0.14.2","X-Developer-Signature":"v=1; a=ed25519-sha256; t=1769506451; l=1571;\n i=jiucheng.xu@amlogic.com; s=20250821; h=from:subject:message-id;\n bh=YWP7kPJlOX7OLc+FLI3fR6NkrBzeRbLZcst1TTgNbyA=;\n b=f0Hg3TtsLr4287r90uzc7VGPUI1SUs5bqUrBtUn0WdVP0MYcsg5XZQwNcCvU3XErB11/1f/8P\n cICYbUnQQV3AkdS2lTKlDEsb0lpCMgqXWLVd5Gxs1uM4b8id+zxkTWr","X-Developer-Key":"i=jiucheng.xu@amlogic.com; a=ed25519;\n pk=Q18IjkdWCCuncSplyu+dYqIrm+n42glvoLFJTQqpb2o=","X-Endpoint-Received":"by B4 Relay for jiucheng.xu@amlogic.com/20250821 with\n auth_id=498","X-Original-From":"Jiucheng Xu ","Reply-To":"jiucheng.xu@amlogic.com","X-Spam-Status":"No, score=-1.2 required=5.0 tests=ARC_SIGNED,ARC_VALID,\n\tDKIMWL_WL_HIGH,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DMARC_PASS,\n\tMAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=disabled\n\tversion=4.0.1","X-Spam-Checker-Version":"SpamAssassin 4.0.1 (2024-03-25) on gandalf.ozlabs.org"},"content":"From: Jiucheng Xu \n\nThe i_state_flags originates from an inode that was previously\ndestroyed and then allocated to s_buddy_cache; it requires\nreinitialization.\n\nThe relevant log during umount is shown below:\n\nEXT4-fs (mmcblk0p28): unmounting filesystem xxx-xxx\nEXT4-fs (mmcblk0p28): Inode 1 (39878178): inode tracked as orphan!\n39878178: 1411f3c7 e0182705 78cc454d ac11f000 .....'..ME.x....\nda10433b: 1a2e0146 792e03d0 9c2a04d1 0c788ad3 F......y..*...x.\na91573cf: 44270388 4f4202ea 721a12ea 340cbce0 ..'D..BO...r...4\n89cb2f37: 0d13f000 4f270414 1a0b01f0 4f880fe0 ......'O.......O\n810e3bc2: 3f0c02f0 482b0009 02e048d0 83f43f2a ...?..+H.H..*?..\n3f37c9f7: 02880aaf 00000000 00000000 00000000 ................\n\nSigned-off-by: Jiucheng Xu \n---\n fs/ext4/mballoc.c | 3 +++\n 1 file changed, 3 insertions(+)\n\n\n---\nbase-commit: 4f5e8e6f012349a107531b02eed5b5ace6181449\nchange-id: 20260126-origin-dev-9f84135b9555\n\nBest regards,","diff":"diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c\nindex dbc82b65f810fed89da7fa7149d3a05de6f107d6..20b07b2bea31ea81ffbd0b4ace3a7b218c8f4dd5 100644\n--- a/fs/ext4/mballoc.c\n+++ b/fs/ext4/mballoc.c\n@@ -3521,6 +3521,9 @@ static int ext4_mb_init_backend(struct super_block *sb)\n \tsbi->s_buddy_cache->i_ino = EXT4_BAD_INO;\n \tEXT4_I(sbi->s_buddy_cache)->i_disksize = 0;\n \text4_set_inode_mapping_order(sbi->s_buddy_cache);\n+#if (BITS_PER_LONG < 64)\n+\text4_clear_state_flags(EXT4_I(sbi->s_buddy_cache));\n+#endif\n \n \tfor (i = 0; i < ngroups; i++) {\n \t\tcond_resched();\n","prefixes":[]}