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=-0.4 required=3.0 tests=FROM_LOCAL_HEX, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED 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 DE5A5C3A59B for ; Fri, 30 Aug 2019 19:39:07 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B5FC122CE9 for ; Fri, 30 Aug 2019 19:39:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728154AbfH3TjH (ORCPT ); Fri, 30 Aug 2019 15:39:07 -0400 Received: from mail-io1-f71.google.com ([209.85.166.71]:37331 "EHLO mail-io1-f71.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727963AbfH3TjG (ORCPT ); Fri, 30 Aug 2019 15:39:06 -0400 Received: by mail-io1-f71.google.com with SMTP id f24so1031255ion.4 for ; Fri, 30 Aug 2019 12:39:06 -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=FTbnECkwX1k08K13xihoScCca2rgDwnviVrV9UZiWrU=; b=oOmNlW2yCDUuL+WOSF+NbeafITuF60TRb+zQHiYSYcgXScy5XEoOZNZdrdXQtumXd3 xw+ZZbUO3Q80qnSKmlL05CyF0BFi/jNf8JTA2BbflO1yC4TRUD7pZKN+65PR7wTeqtYv NvhaZ+/ehsoU7EcssOf0a5qdbh64TuJ3u0aiN5FF/fVMulElL8ZVZXZns91DYQ6WcU7q AfHJk5UfhkGXolJ4YlHXvfMPC8Bon6TwXD0yZ0+PPOhXg3kfOwogeOhTstR69HXVE4RD TUZ3V3VBKZIRxSntYd+G9N25XKfVo+JN61LL++ASCu4sobyBtE5nyKg6N0WgDKBlKkaI emIQ== X-Gm-Message-State: APjAAAVbuLYsMSK+AgqaIQOSWr8fAttVnKEaSJUhJmefcD3xP49r7Ap2 EayETCybWCJ9Wu5vFqGgLIJZqlTlx0ZzNJQk5QmJfrZgIGx9 X-Google-Smtp-Source: APXvYqxUEVRlule/rXFBzIQf0q7idLvhTnyeapvy1aABxBhC+5ULqwOFQbKJR4rZ2VONFMtMv5keWmps+si50dAeNGvC2WKVFPC3 MIME-Version: 1.0 X-Received: by 2002:a05:6602:18d:: with SMTP id m13mr8596613ioo.12.1567193945849; Fri, 30 Aug 2019 12:39:05 -0700 (PDT) Date: Fri, 30 Aug 2019 12:39:05 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000006fc70605915ac6ad@google.com> Subject: WARNING: ODEBUG bug in ext4_fill_super From: syzbot To: adilger.kernel@dilger.ca, clang-built-linux@googlegroups.com, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, tytso@mit.edu Content-Type: text/plain; charset="UTF-8"; format=flowed; delsp=yes 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: ed858b88 Add linux-next specific files for 20190826 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=14209eca600000 kernel config: https://syzkaller.appspot.com/x/.config?x=ee8373cd9733e305 dashboard link: https://syzkaller.appspot.com/bug?extid=0bf8ddafbdf2c46eb6f3 compiler: gcc (GCC) 9.0.0 20181231 (experimental) Unfortunately, I don't have any reproducer for this crash yet. IMPORTANT: if you fix the bug, please add the following tag to the commit: Reported-by: syzbot+0bf8ddafbdf2c46eb6f3@syzkaller.appspotmail.com EXT4-fs (loop2): corrupt root inode, run e2fsck EXT4-fs (loop2): mount failed ------------[ cut here ]------------ ODEBUG: free active (active state 0) object type: percpu_counter hint: 0x0 WARNING: CPU: 0 PID: 12342 at lib/debugobjects.c:481 debug_print_object+0x168/0x250 lib/debugobjects.c:481 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 12342 Comm: syz-executor.2 Not tainted 5.3.0-rc6-next-20190826 #73 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+0x172/0x1f0 lib/dump_stack.c:113 panic+0x2dc/0x755 kernel/panic.c:220 __warn.cold+0x2f/0x3c kernel/panic.c:581 report_bug+0x289/0x300 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:179 [inline] fixup_bug arch/x86/kernel/traps.c:174 [inline] do_error_trap+0x11b/0x200 arch/x86/kernel/traps.c:272 do_invalid_op+0x37/0x50 arch/x86/kernel/traps.c:291 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1028 RIP: 0010:debug_print_object+0x168/0x250 lib/debugobjects.c:481 Code: dd 60 6c e6 87 48 89 fa 48 c1 ea 03 80 3c 02 00 0f 85 b5 00 00 00 48 8b 14 dd 60 6c e6 87 48 c7 c7 c0 61 e6 87 e8 20 31 01 fe <0f> 0b 83 05 f3 67 83 06 01 48 83 c4 20 5b 41 5c 41 5d 41 5e 5d c3 RSP: 0018:ffff88806c9ff938 EFLAGS: 00010086 RAX: 0000000000000000 RBX: 0000000000000003 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815bd606 RDI: ffffed100d93ff19 RBP: ffff88806c9ff978 R08: ffff888067d48140 R09: ffffed1015d04109 R10: ffffed1015d04108 R11: ffff8880ae820847 R12: 0000000000000001 R13: ffffffff8935e800 R14: 0000000000000000 R15: ffff88806903c818 __debug_check_no_obj_freed lib/debugobjects.c:963 [inline] debug_check_no_obj_freed+0x2d4/0x43f lib/debugobjects.c:994 kfree+0xf8/0x2c0 mm/slab.c:3755 ext4_fill_super+0x8cb/0xcc80 fs/ext4/super.c:4684 mount_bdev+0x304/0x3c0 fs/super.c:1407 ext4_mount+0x35/0x40 fs/ext4/super.c:6019 legacy_get_tree+0x113/0x220 fs/fs_context.c:651 vfs_get_tree+0x8f/0x380 fs/super.c:1482 do_new_mount fs/namespace.c:2796 [inline] do_mount+0x13b3/0x1c30 fs/namespace.c:3116 ksys_mount+0xdb/0x150 fs/namespace.c:3325 __do_sys_mount fs/namespace.c:3339 [inline] __se_sys_mount fs/namespace.c:3336 [inline] __x64_sys_mount+0xbe/0x150 fs/namespace.c:3336 do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45c2ca Code: b8 a6 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 9d 8d fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 7a 8d fb ff c3 66 0f 1f 84 00 00 00 00 00 RSP: 002b:00007fa684517a88 EFLAGS: 00000206 ORIG_RAX: 00000000000000a5 RAX: ffffffffffffffda RBX: 00007fa684517b40 RCX: 000000000045c2ca RDX: 00007fa684517ae0 RSI: 0000000020000000 RDI: 00007fa684517b00 RBP: 0000000000001000 R08: 00007fa684517b40 R09: 00007fa684517ae0 R10: 0000000000000001 R11: 0000000000000206 R12: 0000000000000003 R13: 00000000004c89d6 R14: 00000000004df8f8 R15: 00000000ffffffff Kernel Offset: disabled Rebooting in 86400 seconds.. --- This bug is generated by a bot. 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