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 X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AE59FC07E95 for ; Fri, 16 Jul 2021 09:03:33 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 3DBDD613F2 for ; Fri, 16 Jul 2021 09:03:33 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 3DBDD613F2 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 7F66F8D00F4; Fri, 16 Jul 2021 05:03:33 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 7CCFE8D00EC; Fri, 16 Jul 2021 05:03:33 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 6948D8D00F4; Fri, 16 Jul 2021 05:03:33 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0067.hostedemail.com [216.40.44.67]) by kanga.kvack.org (Postfix) with ESMTP id 3B0298D00EC for ; Fri, 16 Jul 2021 05:03:33 -0400 (EDT) Received: from smtpin34.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay04.hostedemail.com (Postfix) with ESMTP id 011AA27756 for ; Fri, 16 Jul 2021 09:03:32 +0000 (UTC) X-FDA: 78367862664.34.80C087E Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by imf14.hostedemail.com (Postfix) with ESMTP id 93A386001AB9 for ; Fri, 16 Jul 2021 09:03:31 +0000 (UTC) Received: by mail.kernel.org (Postfix) with ESMTPSA id 8A828613ED; Fri, 16 Jul 2021 09:03:28 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1626426210; bh=eeMRtga4PnWBozjEmbHEVDTqRL9TrQDK3isIIK2f/8o=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=ghdNT22lkaDLXZWsJgLkyy0uSs3+IDQewvf9VvwWu+o+tzEsXAsLkFHJEBOpY/fDl 7wNTnVtAybTrHjM83vbdK1ryVV5Hbp22ww3W/wSXoUGjxHYM9jXvzOwgBnb4hpfkOb HfKPgo8M2S9ZoVaCtNGQ4yj7+EwDqo+QOiUFMi1T8ZHAP8q50+7R9xghISWnyu9XXt OjvpCs0fabOt3+fsWQvs3K+G4wmsfTboSgdmLZCy5bz+hbuhj2UDmE3PwetaTMl042 zsS1CklLRhkkPTKzJmu7HCkjSGgzGtFz0iZslr8C5O1MWLSKFYSQHmanRdIaoBr9qr EhoHlxh7tK72g== Date: Fri, 16 Jul 2021 10:03:25 +0100 From: Will Deacon To: CKI Project Cc: skt-results-master@redhat.com, catalin.marinas@arm.com, linux-arm-kernel@lists.infradead.org, Fendy Tjahjadi , Memory Management , Jan Stancek , guro@fb.com, willy@infradead.org, tj@kernel.org, dennis@kernel.org, jack@suse.cz, linux-mm@kvack.org Subject: Re: =?utf-8?B?4p2MIEZBSUw=?= =?utf-8?Q?=3A?= Test report for kernel 5.14.0-rc1 (arm-next, e6f85cbe) Message-ID: <20210716090324.GA2543@willie-the-truck> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) Authentication-Results: imf14.hostedemail.com; dkim=pass header.d=kernel.org header.s=k20201202 header.b=ghdNT22l; spf=pass (imf14.hostedemail.com: domain of will@kernel.org designates 198.145.29.99 as permitted sender) smtp.mailfrom=will@kernel.org; dmarc=pass (policy=none) header.from=kernel.org X-Stat-Signature: zsrb69xm58bdag4k9aaxrh5jrnuf5tfn X-Rspamd-Queue-Id: 93A386001AB9 X-Rspamd-Server: rspam01 X-HE-Tag: 1626426211-855802 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.001500, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Thu, Jul 15, 2021 at 11:55:34PM -0000, CKI Project wrote: > All kernel binaries, config files, and logs are available for download = here: >=20 > https://arr-cki-prod-datawarehouse-public.s3.amazonaws.com/index.html= ?prefix=3Ddatawarehouse-public/2021/07/15/337870374 >=20 > One or more kernel tests failed: >=20 > aarch64: > =F0=9F=92=A5 Podman system integration test - as user This is a NULL pointer dereference in the recently introduced cleanup_offline_cgwbs_workfn() function [c22d70a162d3 ("writeback, cgroup= : release dying cgwbs by switching attached inodes")]. Adding some of those folks to CC. addr2line gives: | linux/./include/linux/atomic-arch-fallback.h:2265 | linux/./include/linux/atomic-arch-fallback.h:2290 | linux/./include/asm-generic/atomic-instrumented.h:1149 | linux/./include/asm-generic/atomic-long.h:491 | linux/percpu-refcount.h:247 | linux/percpu-refcount.h:266 | linux/backing-dev-defs.h:227 | linux/mm/backing-dev.c:679 and the crash (this is an arm64 machine) is: [ 4794.406516] Unable to handle kernel NULL pointer dereference at virtua= l address 0000000000000000=20 [ 4794.415307] Mem abort info:=20 [ 4794.418088] ESR =3D 0x96000004=20 [ 4794.421130] EC =3D 0x25: DABT (current EL), IL =3D 32 bits=20 [ 4794.426428] SET =3D 0, FnV =3D 0=20 [ 4794.429470] EA =3D 0, S1PTW =3D 0=20 [ 4794.432597] FSC =3D 0x04: level 0 translation fault=20 [ 4794.437461] Data abort info:=20 [ 4794.440329] ISV =3D 0, ISS =3D 0x00000004=20 [ 4794.444151] CM =3D 0, WnR =3D 0=20 [ 4794.447105] user pgtable: 4k pages, 48-bit VAs, pgdp=3D00000009072be00= 0=20 [ 4794.453534] [0000000000000000] pgd=3D0000000000000000, p4d=3D000000000= 0000000=20 [ 4794.460312] Internal error: Oops: 96000004 [#1] SMP=20 [ 4794.465179] Modules linked in: xt_nat xt_addrtype xt_mark nft_chain_na= t xt_MASQUERADE nf_nat xt_comment veth bridge stp llc loop tun af_key cry= pto_user scsi_transport_iscsi xt_multiport ip_gre ip_tunnel gre overlay x= t_CONNSECMARK xt_SECMARK nft_counter xt_state xt_conntrack nft_compat ah6= ah4 nft_objref nft_ct nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 nf_tabl= es nfnetlink jfs sctp ip6_udp_tunnel udp_tunnel dm_log_writes dm_flakey r= fkill mlx5_ib ib_uverbs ib_core sunrpc coresight_etm4x i2c_smbus coresigh= t_replicator coresight_tpiu coresight_tmc joydev mlx5_core acpi_ipmi mlxf= w ipmi_ssif psample ipmi_devintf ipmi_msghandler coresight_funnel coresig= ht thunderx2_pmu vfat fat fuse zram ip_tables xfs crct10dif_ce ast ghash_= ce i2c_algo_bit drm_vram_helper drm_kms_helper syscopyarea sysfillrect sy= simgblt fb_sys_fops cec drm_ttm_helper ttm drm gpio_xlp i2c_xlp9xx uas us= b_storage aes_neon_bs [last unloaded: raid10]=20 [ 4794.545404] CPU: 86 PID: 1121023 Comm: kworker/u513:9 Tainted: G = OE 5.14.0-rc1 #1=20 [ 4794.554090] Hardware name: HPE Apollo 70 /C01_APACHE_MB = , BIOS L50_5.13_1.15 05/08/2020=20 [ 4794.563817] Workqueue: events_unbound cleanup_offline_cgwbs_workfn=20 [ 4794.569990] pstate: 004000c9 (nzcv daIF +PAN -UAO -TCO BTYPE=3D--)=20 [ 4794.575985] pc : cleanup_offline_cgwbs_workfn+0x2d8/0x350=20 [ 4794.581372] lr : cleanup_offline_cgwbs_workfn+0xc8/0x350=20 [ 4794.586672] sp : ffff800043ae3d40=20 [ 4794.589973] x29: ffff800043ae3d40 x28: 0000000000000000 x27: 000000000= 0000001=20 [ 4794.597097] x26: 0000000000000000 x25: 00000000000000e0 x24: ffff80001= 1f01438=20 [ 4794.604221] x23: ffff800043ae3db0 x22: ffff800011f01428 x21: ffff80001= 228c5f0=20 [ 4794.611345] x20: ffff000817299800 x19: ffff000817299a80 x18: 000000000= 000000e=20 [ 4794.618469] x17: 0000000079c37e0f x16: 0000000000010000 x15: fffffc002= 084ac02=20 [ 4794.625593] x14: 0000000000000000 x13: 0000000000000030 x12: 000000000= 0000040=20 [ 4794.632716] x11: ffff000812333d98 x10: ffff000812333d9a x9 : ffff80001= 02dfd84=20 [ 4794.639840] x8 : ffff000812331b88 x7 : 0000000000000000 x6 : ffff00081= 2331d48=20 [ 4794.646964] x5 : 0000000000000000 x4 : ffff00086f2a4a80 x3 : 000000000= 0000000=20 [ 4794.654088] x2 : ffff800043ae3db0 x1 : ffff00086f2a4a80 x0 : 000000000= 0000003=20 [ 4794.661212] Call trace:=20 [ 4794.663646] cleanup_offline_cgwbs_workfn+0x2d8/0x350=20 [ 4794.668685] process_one_work+0x1f0/0x4ac=20 [ 4794.672686] worker_thread+0x180/0x400=20 [ 4794.676423] kthread+0x110/0x114=20 [ 4794.679641] ret_from_fork+0x10/0x18=20 [ 4794.683209] Code: d63f0020 97f9c259 17ffffb1 f8588263 (f9400061) =20 [ 4794.689290] ---[ end trace 8c5d2f7872fef978 ]---=20 Will