From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail11.truemail.it (mail11.truemail.it [217.194.8.81]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A7876322C78; Tue, 24 Mar 2026 07:35:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.194.8.81 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774337714; cv=none; b=nfjvACk7FDLzstsLvfDXCtBfUDNtiOZEbGn7QCpep+jdJAV+z9d6qAQWGEM9F/4k7u7+ho0A4+8eSdJyMAoBE/NrkltfmPuUu50NHMxd+yAoSJ9Jo52Ma7nHSxcUeLw02nJeOdUq1D7jp3CNA1Hj2Z2aQnG3NpgASgRDDDrqXeE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1774337714; c=relaxed/simple; bh=6IlMeXk1WZycISmMe+soaKl+sSsLCkHt660QnGLCx4E=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Wd7fZOPSYegIlAmvT797qeHbwMJYw/25VttUVYXHAlxCWKnj4TRvCX6cLrY8o+7NoYeY48DVrlRG0NUfpPTj8b8O9bxVyq04QyogHwPUXSTAZE7ufOXERVTdPRwdBLUQkTiI7+mhdPkmYyJD9cjz53hhlOZHsgls3lYxD7W6098= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it; spf=pass smtp.mailfrom=dolcini.it; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b=vFWlRqRQ; arc=none smtp.client-ip=217.194.8.81 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dolcini.it Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dolcini.it Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=dolcini.it header.i=@dolcini.it header.b="vFWlRqRQ" Received: from francesco-nb (248.201.173.83.static.wline.lns.sme.cust.swisscom.ch [83.173.201.248]) by mail11.truemail.it (Postfix) with ESMTPA id D6DF31FA0B; Tue, 24 Mar 2026 08:34:51 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dolcini.it; s=default; t=1774337692; bh=o9lLWZpgsou6EOIpHU68Hao9eV/gXb6G0+VKkT/SGGM=; h=From:To:Subject; b=vFWlRqRQoyb6lcNylW6jriGHG2Gdb7azhox6JqvEW6bq8jamfDPd+GDGnWdYIKSq1 za9C5V++WiAbzbQc+tKujZ9ENn6kTxQTfiTuOQCwaeJvFu1DxkhBl61Mg8tkDzjyLe /oO9oAK+S7WueC2T5wEAFprovrhdH9E17b5Sc4tycF5jFAFxOIszW6kuRNDcDBCDeE tX11YquOEthemv/XNzUPiywDZSMVEKbfVNj5lOWH8JdZoNJ/a3rvPd+Xb/6K4Y3+xz DCVYd3+YQxXmaekWwY1I+TBMFGKHopof412H9oNhst53c2cx96DuH1E/L5H9eOM0Er xbmwrJMyzniDw== Date: Tue, 24 Mar 2026 08:34:47 +0100 From: Francesco Dolcini To: Greg Kroah-Hartman , Jan Kara , Brian Foster , Yongjian Sun , Matthew Wilcox , Gou Hao , Theodore Ts'o , Kemeng Shi , Zhang Yi , Baokun Li Cc: stable@vger.kernel.org, patches@lists.linux.dev, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org, linux@roeck-us.net, shuah@kernel.org, patches@kernelci.org, lkft-triage@lists.linaro.org, pavel@nabladev.com, jonathanh@nvidia.com, f.fainelli@gmail.com, sudipm.mukherjee@gmail.com, rwarsow@gmx.de, conor@kernel.org, hargar@microsoft.com, broonie@kernel.org, achill@achill.org, sr@sladewatkins.com Subject: Re: [PATCH 6.1 000/481] 6.1.167-rc1 review Message-ID: <20260324073447.GA5062@francesco-nb> References: <20260323134525.256603107@linuxfoundation.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260323134525.256603107@linuxfoundation.org> Hi Greg, On Mon, Mar 23, 2026 at 02:39:42PM +0100, Greg Kroah-Hartman wrote: > This is the start of the stable review cycle for the 6.1.167 release. > There are 481 patches in this series, all will be posted as a response > to this one. If anyone has any issues with these being applied, please > let me know. > > Responses should be made by Wed, 25 Mar 2026 13:44:33 +0000. > Anything received after that time might be too late. Not ok I have an ext4 Oops on arm [ 27.908560] 8<--- cut here --- [ 27.911697] Unable to handle kernel NULL pointer dereference at virtual address 00000000 [ 27.919880] [00000000] *pgd=00000000 [ 27.923482] Internal error: Oops: 5 [#1] SMP ARM [ 27.928117] Modules linked in: 8021q cfg80211 imx_sdma coda_vpu v4l2_jpeg imx_vdoa dw_hdmi_ahb_audio fuse [ 27.937784] CPU: 1 PID: 736 Comm: tar Not tainted 6.1.167-rc1-6.8.6-devel+git.67c872a868ac #1 [ 27.946342] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [ 27.952889] PC is at ext4_mb_load_buddy_gfp+0xac/0x438 [ 27.958083] LR is at 0xe0f39b18 [ 27.961248] pc : [] lr : [] psr: 000f0013 [ 27.967536] sp : e0f39b60 ip : 00000000 fp : c43046f8 [ 27.972781] r10: 00000001 r9 : 00000c40 r8 : 00000016 [ 27.978025] r7 : 00000016 r6 : c2b24000 r5 : e0f39bcc r4 : 00000000 [ 27.984574] r3 : d21b9611 r2 : d21b9611 r1 : c4277e40 r0 : 00000000 [ 27.991123] Flags: nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none [ 27.998287] Control: 10c5387d Table: 131c804a DAC: 00000051 [ 28.004050] Register r0 information: NULL pointer [ 28.008787] Register r1 information: slab radix_tree_node start c4277e40 pointer offset 0 [ 28.017024] Register r2 information: 0-page vmalloc region starting at 0xd0000000 allocated at iotable_init+0x0/0xf4 [ 28.027619] Register r3 information: 0-page vmalloc region starting at 0xd0000000 allocated at iotable_init+0x0/0xf4 [ 28.038199] Register r4 information: NULL pointer [ 28.042930] Register r5 information: 2-page vmalloc region starting at 0xe0f38000 allocated at kernel_clone+0x88/0x338 [ 28.053693] Register r6 information: slab kmalloc-1k start c2b24000 pointer offset 0 size 1024 [ 28.062369] Register r7 information: non-paged memory [ 28.067449] Register r8 information: non-paged memory [ 28.072527] Register r9 information: non-paged memory [ 28.077605] Register r10 information: non-paged memory [ 28.082771] Register r11 information: slab ext4_inode_cache start c4304620 pointer offset 216 size 60 [ 28.092056] Register r12 information: NULL pointer [ 28.096875] Process tar (pid: 736, stack limit = 0x116a0825) [ 28.102562] Stack: (0xe0f39b60 to 0xe0f3a000) [ 28.106955] 9b60: e0f39b5c 00000000 c0c1b414 c2916000 c2b24000 c42e55d8 c2b24000 c29162a8 [ 28.115162] 9b80: 00000048 c4589000 0000000b c035f804 00000001 00000001 00000001 c2b24000 [ 28.123368] 9ba0: c2916000 0000001d 00000010 00000000 00000009 00000024 00000000 00000000 [ 28.131573] 9bc0: c2b92300 00000001 00000000 00000000 e0f39d30 00000000 c2b92300 c42e55d8 [ 28.139778] 9be0: c2b24000 0000000c 0000000b d21b9611 00000000 c4589000 c2b24000 e0f39d30 [ 28.147983] 9c00: 00000001 c2916000 00000000 c42fbf60 00000001 c03628c0 00000001 00000000 [ 28.156188] 9c20: e0f39d14 c2b92300 00000001 00000000 00000029 00000000 00000000 c03328b4 [ 28.164393] 9c40: 00000000 00000000 c4886a60 c033be7c 00000000 c0294008 00000000 00000000 [ 28.172597] 9c60: c48867d0 d21b9611 c2b92300 00000001 00000001 c2916000 00000000 00000000 [ 28.180802] 9c80: 00000000 c48868a8 e0f39e10 c0336970 e0f39d24 47ffffff c2b24000 00000000 [ 28.189007] 9ca0: c48868a8 00000000 e0f39d88 c0330844 00000000 00000001 c2b92300 c42fbf60 [ 28.197212] 9cc0: e0f39d88 ffffffff 00000000 ffffffff c308da80 00000000 00000001 c308da98 [ 28.205416] 9ce0: 00000000 c03362f4 ffffffff ffffffff 00000008 00000010 00000000 cf358340 [ 28.213620] 9d00: c42fbf60 00000000 c0c1b2c8 00000000 c308da80 00000000 00000000 c4540001 [ 28.221825] 9d20: 00000000 c0395154 c2b92300 000009dd c48868a8 00000001 00000000 00000000 [ 28.230029] 9d40: 00000000 c034c0c0 00000000 00000000 00000000 00000000 00000000 00000000 [ 28.238234] 9d60: 00000000 00000000 c4886a60 d21b9611 00000020 e0f39e10 c48868a8 00000000 [ 28.246438] 9d80: 00000001 c42fbf60 c2b92300 00001000 00000000 c034ccdc 00000000 00000000 [ 28.254642] 9da0: 00000000 00000000 c42fbf60 c4886890 00000000 00000000 c48868a8 00000000 [ 28.262847] 9dc0: c4886a60 00000000 ffffffff e0f39e70 ffffffff 47ffffff 00000000 d21b9611 [ 28.271052] 9de0: c2b92300 c48868a8 c48868a8 c42fbf60 c2b92300 00000000 00000001 00001000 [ 28.279256] 9e00: 00000000 c034dc98 c48868a8 c038d7f4 00000000 00000000 00000000 00000001 [ 28.287461] 9e20: 00000000 cf358300 00000000 d21b9611 c48868f0 c48868a8 00000000 c42fbf60 [ 28.295666] 9e40: c2b92300 e0f39ec0 00000001 c034ded0 c48868a8 00000000 c42fbf60 c0367fec [ 28.303871] 9e60: 0000001d 000041ed 00000000 c42ffcd8 00000000 00000000 00000000 00000001 [ 28.312076] 9e80: 00000000 c48868a8 69c15bf6 d21b9611 119d9a05 c48868a8 c2b24000 00000000 [ 28.320281] 9ea0: 00000000 c42fbf60 c2b92300 c036e134 00000000 c036b544 00000000 c43043e8 [ 28.328486] 9ec0: 00000000 d21b9611 0000000c c48868a8 c48868a8 c42fbf60 c43043e8 c0c1bc80 [ 28.336690] 9ee0: 000041ed c2b92300 c120d3e8 c036e410 c42ffcd8 00000000 00000000 00000000 [ 28.344895] 9f00: 00000004 00000bfa 00000027 c02a9b20 00000000 00000027 c42ffcd8 c42ffcc0 [ 28.353100] 9f20: 00000000 d21b9611 00000002 c43043e8 c036e298 c120d3e8 c42ffcc0 00000000 [ 28.361305] 9f40: 00000002 c2b92300 be83b824 c02ab1a0 c34dc010 d21b9611 01db0478 c34dc000 [ 28.369510] 9f60: c42ffcc0 c34dc000 ffffff9c 000041ed 00000000 c02b0268 be83b824 c20c6910 [ 28.377715] 9f80: c42e2a18 d21b9611 01db0478 01db01f8 00000000 00000027 c01002e8 c2b92300 [ 28.385920] 9fa0: 00000027 c0100080 01db0478 01db01f8 01db0478 000041ed 00000020 00004000 [ 28.394124] 9fc0: 01db0478 01db01f8 00000000 00000027 00000000 00000007 01db01f8 be83b824 [ 28.402330] 9fe0: 00545dbc be83b754 004f9b0b b6e5ff98 600f0030 01db0478 00000000 00000000 [ 28.410535] ext4_mb_load_buddy_gfp from ext4_mb_regular_allocator+0x318/0xee0 [ 28.417826] ext4_mb_regular_allocator from ext4_mb_new_blocks+0x724/0x1000 [ 28.424847] ext4_mb_new_blocks from ext4_ext_map_blocks+0x7d8/0x1600 [ 28.431351] ext4_ext_map_blocks from ext4_map_blocks+0x21c/0x604 [ 28.437492] ext4_map_blocks from ext4_getblk+0x68/0x298 [ 28.442844] ext4_getblk from ext4_bread+0x8/0xa0 [ 28.447587] ext4_bread from ext4_append+0x98/0x1b4 [ 28.452514] ext4_append from ext4_init_new_dir+0x7c/0x1e0 [ 28.458061] ext4_init_new_dir from ext4_mkdir+0x178/0x384 [ 28.463608] ext4_mkdir from vfs_mkdir+0xcc/0x168 [ 28.468364] vfs_mkdir from do_mkdirat+0x80/0x104 [ 28.473107] do_mkdirat from ret_fast_syscall+0x0/0x54 [ 28.478285] Exception stack(0xe0f39fa8 to 0xe0f39ff0) [ 28.483367] 9fa0: 01db0478 01db01f8 01db0478 000041ed 00000020 00004000 [ 28.491573] 9fc0: 01db0478 01db01f8 00000000 00000027 00000000 00000007 01db01f8 be83b824 [ 28.499775] 9fe0: 00545dbc be83b754 004f9b0b b6e5ff98 [ 28.504856] Code: ebfbad72 e3700a01 e1a04000 8a00005d (e5903000) [ 28.511102] ---[ end trace 0000000000000000 ]--- The bug is not systematic, and I do not see myself having the time to bisect it in the next couple of days (it was reproduced by our CI / Lava infrastructure). I have added some of the ext4 folks to this thread, in case they know how to help. Francesco