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=-5.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 B8505C433DF for ; Wed, 10 Jun 2020 08:58:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9924A204EA for ; Wed, 10 Jun 2020 08:58:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726962AbgFJI6R (ORCPT ); Wed, 10 Jun 2020 04:58:17 -0400 Received: from mail-il1-f198.google.com ([209.85.166.198]:49274 "EHLO mail-il1-f198.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726912AbgFJI6Q (ORCPT ); Wed, 10 Jun 2020 04:58:16 -0400 Received: by mail-il1-f198.google.com with SMTP id i7so1021501ilq.16 for ; Wed, 10 Jun 2020 01:58:16 -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=swBsRiPm3WFuS4YfdrHR8e1rZPo+xOvNbmYgDsiRTZk=; b=WW3KvB3MdWs1jN/ocNPmEAt1GYuWGmrtTZYi1h4o6t8v6hwhTNP1tqGTpdbDVTJo9x 36Gx6dhn+vjlX5DMLnM4d5Zp6K8lfxEdNPyzvOc4p6qjVoHm94RerkuEbfBvXIngiuE6 AyrHg9dEoCCwxquTzJiwCnbCIsuNqRDycWXclifTvGgFjtbH+qaQgXXZaZz4HXup3ma8 t1uhr1klmEhaeJ0lqBS649JX9KJWSGcZoeZlkJetRRx7n6J8ZY0PXvYZPV7aR+SfOCBs 1k7yvzinyaXR2UpQ5hQECyxGRWr8VjotEIjHXNaVv7K8I4rUUKAgETzU6yD/IhiJw3W3 Ri7w== X-Gm-Message-State: AOAM530tALNNKoAVg4SAi69pINsP2hDyveV8Z63b4KRmhDEl6d7YRdei CxZRHOsG83/5c2Berv9mFCWKVKwXWvj5KjbO0bkoKPAyBxyb X-Google-Smtp-Source: ABdhPJzAUjLiryGcHMKtP83fEZZI4qQzZPQFlOL+8Kij6iFhyuErtrxM9GbRgMLnETWQy2tHCU9unKVyiPRCetqHrGnmR9yBfV5W MIME-Version: 1.0 X-Received: by 2002:a6b:7b4a:: with SMTP id m10mr2258899iop.55.1591779495178; Wed, 10 Jun 2020 01:58:15 -0700 (PDT) Date: Wed, 10 Jun 2020 01:58:15 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000005ef79005a7b70b3c@google.com> Subject: upstream test error: BUG: using smp_processor_id() in preemptible code in ext4_ext_map_blocks From: syzbot To: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, syzbot found the following crash on: HEAD commit: 5b14671b Merge tag 'fuse-update-5.8' of git://git.kernel.o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=10993196100000 kernel config: https://syzkaller.appspot.com/x/.config?x=d1ea633f7958e008 dashboard link: https://syzkaller.appspot.com/bug?extid=d541e928666fa26ff342 compiler: gcc (GCC) 9.0.0 20181231 (experimental) IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+d541e928666fa26ff342@syzkaller.appspotmail.com BUG: using smp_processor_id() in preemptible [00000000] code: systemd-rfkill/6724 caller is ext4_mb_new_blocks+0xa77/0x3b30 fs/ext4/mballoc.c:4711 CPU: 0 PID: 6724 Comm: systemd-rfkill Not tainted 5.7.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x18f/0x20d lib/dump_stack.c:118 check_preemption_disabled lib/smp_processor_id.c:47 [inline] debug_smp_processor_id.cold+0x88/0x9b lib/smp_processor_id.c:57 ext4_ext_map_blocks+0x2044/0x3410 fs/ext4/extents.c:4244 ext4_map_blocks+0x4cb/0x1640 fs/ext4/inode.c:626 ext4_getblk+0xad/0x520 fs/ext4/inode.c:833 ext4_bread+0x7c/0x380 fs/ext4/inode.c:883 ext4_append+0x153/0x360 fs/ext4/namei.c:67 ext4_init_new_dir fs/ext4/namei.c:2757 [inline] ext4_mkdir+0x5e0/0xdf0 fs/ext4/namei.c:2802 vfs_mkdir+0x419/0x690 fs/namei.c:3641 do_mkdirat+0x21e/0x280 fs/namei.c:3664 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x7fc488153687 Code: Bad RIP value. RSP: 002b:00007fffc165c4d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000053 RAX: ffffffffffffffda RBX: 000055df97011985 RCX: 00007fc488153687 RDX: 00007fffc165c3a0 RSI: 00000000000001ed RDI: 000055df97011985 RBP: 00007fc488153680 R08: 0000000000000100 R09: 0000000000000000 R10: 000055df97011980 R11: 0000000000000246 R12: 00000000000001ed R13: 00007fffc165c660 R14: 0000000000000000 R15: 0000000000000000 --- This bug is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this bug report. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot.