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=-8.7 required=3.0 tests=BAYES_00,FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS autolearn=ham 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 C4D6EC433DB for ; Fri, 19 Mar 2021 09:44:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 915DA64F6A for ; Fri, 19 Mar 2021 09:44:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229745AbhCSJoV (ORCPT ); Fri, 19 Mar 2021 05:44:21 -0400 Received: from mail-il1-f197.google.com ([209.85.166.197]:37628 "EHLO mail-il1-f197.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229747AbhCSJoS (ORCPT ); Fri, 19 Mar 2021 05:44:18 -0400 Received: by mail-il1-f197.google.com with SMTP id a14so15877865ilj.4 for ; Fri, 19 Mar 2021 02:44:18 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:date:message-id:subject:from:to; bh=uknfhiMqksBM9hkMatz/l2UoJF3sQR2ymLAiLiFEZSU=; b=YZRJNUy28oxZLvg9sqlozSyKd8dX3QSsE7ooLh86GDtfSs5n+ok9gYuu2Iox3yXOzl HZ86Xa06PQwbQ0YPfjEZk0xItJOIZgwjIOYYwIhmZnDRjU1BeXFugEOnXSklTpU5Sxwf bdNHRpFjcnXnNUVp2PNyC9MkK2KlHRwAzavyf07Ef5MAu+kWttgWzoSRIYkIDKM2seda ykZGVXHL/qnO2oT5EpSFA88m96v3sFmb2FZryneqUcYbOdDmO1/liEp02+U8OSlbdGVP DXaGCLvE1r+oYbJdx1Wq/2QDSmKBdhUD4tuxKWKQ058ZMOj5dBh8lQm2FS8OLZzcuQpf z39Q== X-Gm-Message-State: AOAM532QVbaqPs3zxM5W+TGzZQHTY3GpR+mjVrcA9zW3q2PMTa4IXOkD GZBLZV+M/q9ztlXx4frSXnWtaAoh3P9IkYeDwOhyP1sru3gk X-Google-Smtp-Source: ABdhPJz0qb78/BiPZ5MGBbbRVgHLoQX32MjXzVtLbWpjDQap5yfVbHfZJdEl/s9gXJtxZTpwArL/dIMb2egc9mZv0jVVqCrFbdRj MIME-Version: 1.0 X-Received: by 2002:a05:6e02:1baf:: with SMTP id n15mr2101812ili.190.1616147058200; Fri, 19 Mar 2021 02:44:18 -0700 (PDT) Date: Fri, 19 Mar 2021 02:44:18 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000004f14c105bde08f75@google.com> Subject: [syzbot] upstream boot error: WARNING in __context_tracking_enter From: syzbot To: alexandre.chartre@oracle.com, linux-kernel@vger.kernel.org, mhiramat@kernel.org, peterz@infradead.org, syzkaller-bugs@googlegroups.com, tglx@linutronix.de Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: 8b12a62a Merge tag 'drm-fixes-2021-03-19' of git://anongit.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17e815aed00000 kernel config: https://syzkaller.appspot.com/x/.config?x=cfeed364fc353c32 dashboard link: https://syzkaller.appspot.com/bug?extid=f09a12b2c77bfbbf51bd userspace arch: arm IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+f09a12b2c77bfbbf51bd@syzkaller.appspotmail.com l2tp_core: L2TP core driver, V2.0 l2tp_ip: L2TP IP encapsulation support (L2TPv3) l2tp_netlink: L2TP netlink interface l2tp_eth: L2TP ethernet pseudowire support (L2TPv3) l2tp_ip6: L2TP IP encapsulation support for IPv6 (L2TPv3) 8021q: 802.1Q VLAN Support v1.8 sctp: Hash tables configured (bind 64/102) NET: Registered protocol family 21 Registered RDS/infiniband transport Registered RDS/tcp transport NET: Registered protocol family 43 9pnet: Installing 9P2000 support Key type dns_resolver registered Key type ceph registered libceph: loaded (mon/osd proto 15/24) NET: Registered protocol family 40 Registering SWP/SWPB emulation handler registered taskstats version 1 Loading compiled-in X.509 certificates Loaded X.509 cert 'Build time autogenerated kernel key: f850c787ad998c396ae089c083b940ff0a9abb77' zswap: loaded using pool lzo/zbud Key type ._fscrypt registered Key type .fscrypt registered Key type fscrypt-provisioning registered Key type big_key registered Key type encrypted registered ima: No TPM chip found, activating TPM-bypass! ima: Allocated hash algorithm: sha256 ima: No architecture policies found evm: Initialising EVM extended attributes: evm: security.selinux evm: security.ima evm: security.capability evm: HMAC attrs: 0x1 printk: console [netcon0] enabled netconsole: network logging started gtp: GTP module loaded (pdp ctx size 64 bytes) ALSA device list: #0: Dummy 1 #1: Loopback 1 #2: Virtual MIDI Card 1 #3: ARM AC'97 Interface PL041 rev0 at 0x1c040000, irq 36 uart-pl011 1c090000.serial: no DMA platform data md: Skipping autodetection of RAID arrays. (raid=autodetect will force) EXT4-fs (vda): mounted filesystem without journal. Opts: (null). Quota mode: none. VFS: Mounted root (ext4 filesystem) readonly on device 253:0. devtmpfs: mounted Freeing unused kernel memory: 2048K Run /sbin/init as init process ------------[ cut here ]------------ WARNING: CPU: 0 PID: 1 at include/linux/seqlock.h:271 __seqprop_assert include/linux/seqlock.h:271 [inline] WARNING: CPU: 0 PID: 1 at include/linux/seqlock.h:271 __seqprop_assert.constprop.0+0xf0/0x11c include/linux/seqlock.h:269 Modules linked in: Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 1 Comm: init Not tainted 5.12.0-rc3-syzkaller #0 Hardware name: ARM-Versatile Express Backtrace: [<81804310>] (dump_backtrace) from [<81804584>] (show_stack+0x18/0x1c arch/arm/kernel/traps.c:252) r7:00000080 r6:60000193 r5:00000000 r4:82b58444 [<8180456c>] (show_stack) from [<8180bc58>] (__dump_stack lib/dump_stack.c:79 [inline]) [<8180456c>] (show_stack) from [<8180bc58>] (dump_stack+0xb8/0xe8 lib/dump_stack.c:120) [<8180bba0>] (dump_stack) from [<81805118>] (panic+0x130/0x378 kernel/panic.c:231) r7:81f487d4 r6:82a390e4 r5:00000000 r4:82c6b0d8 [<81804fe8>] (panic) from [<802447b4>] (__warn+0xb0/0x164 kernel/panic.c:605) r3:82a2248c r2:00000000 r1:5b71e000 r0:81f487d4 r7:0000010f [<80244704>] (__warn) from [<818053c8>] (warn_slowpath_fmt+0x68/0xd4 kernel/panic.c:628) r7:8028c4b4 r6:0000010f r5:81f40c30 r4:00000000 [<81805364>] (warn_slowpath_fmt) from [<8028c4b4>] (__seqprop_assert include/linux/seqlock.h:271 [inline]) [<81805364>] (warn_slowpath_fmt) from [<8028c4b4>] (__seqprop_assert.constprop.0+0xf0/0x11c include/linux/seqlock.h:269) r8:00000000 r7:82a22498 r6:828ac940 r5:8181fbb0 r4:00000001 [<8028c3c4>] (__seqprop_assert.constprop.0) from [<8028ea54>] (vtime_user_enter+0x1c/0x90 kernel/sched/cputime.c:709) r5:8181fbb0 r4:834f0000 [<8028ea38>] (vtime_user_enter) from [<8181fbb0>] (__context_tracking_enter+0x148/0x334 kernel/context_tracking.c:82) r7:82a22498 r6:828ac940 r5:ffffe000 r4:00000001 [<8181fa68>] (__context_tracking_enter) from [<80417170>] (context_tracking_enter kernel/context_tracking.c:122 [inline]) [<8181fa68>] (__context_tracking_enter) from [<80417170>] (context_tracking_enter+0x54/0x84 kernel/context_tracking.c:106) r7:00000000 r6:00000000 r5:60000193 r4:00000001 [<8041711c>] (context_tracking_enter) from [<804171bc>] (user_enter include/linux/context_tracking.h:28 [inline]) [<8041711c>] (context_tracking_enter) from [<804171bc>] (context_tracking_user_enter+0x1c/0x20 kernel/context_tracking.c:130) r5:81820218 r4:00000000 [<804171a0>] (context_tracking_user_enter) from [<802000d4>] (no_work_pending+0x8/0x38) Exception stack(0x834dffb0 to 0x834dfff8) ffa0: 00000000 00000000 00000000 00000000 ffc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 ffe0: 00000000 7ec68ef0 00000000 76ee5a00 00000010 00000000 Rebooting in 86400 seconds.. --- This report is generated by a bot. 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