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 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 7364BC2BA2B for ; Mon, 13 Apr 2020 07:50:19 +0000 (UTC) Received: from vger.kernel.org (unknown [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 480E1206A1 for ; Mon, 13 Apr 2020 07:50:19 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 480E1206A1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729432AbgDMHuO (ORCPT ); Mon, 13 Apr 2020 03:50:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.18]:36464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727480AbgDMHuO (ORCPT ); Mon, 13 Apr 2020 03:50:14 -0400 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D1CDC008651 for ; Mon, 13 Apr 2020 00:50:12 -0700 (PDT) Received: by mail-il1-f199.google.com with SMTP id o9so9906389ila.10 for ; Mon, 13 Apr 2020 00:50:12 -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=tQceCnQqY/aLl6gDcc2Z8ka0DsHJea8y/PyAYUwdDBo=; b=F9Vcfmh2HyTtmStoooa5T+exLM+P1JeKcFL2QYM/GD9sRHnzM9NOG7S19JCdWSRyKI 0CBLnaXbwZgyt11lc0z8P6gsbutm85LvTehGd4hlxRq56CqjUBLbmFtXvFekjAJ8dnnk us/jfZ7EqbKM/lsRi2Wq1xDJ8nA1qyKtshwoJYSV3gk1NeGJmrikA2sAEENx8X5Yf5hZ SU83oPJc9Qypl3lJjLlLiDlWwh3QU4RZl3ZzgRhgZU3yWRWq0JyTMt3Q1wQw/+Ww9rC1 WsyJ5VVJt4l7Qv3M6dlkLmqUbHTVXOgK/DOdVJH+t5I3wxxISLdlNzpSLhLlHLWKYriu kstg== X-Gm-Message-State: AGi0PuY0eudDXZ26LKM7lS9LUPqAvPOi5ENoY5c4FzATPccAjdKgTvOM Fry5VN5Mzf/P2H33wPVMhYOgapSTW1qbm6LRZF/Xom2yj3Uy X-Google-Smtp-Source: APiQypISXdqIE1ACm9Pt4Gp4cIPdcjo8s87kQ9UckHNBghw8x2QbCK3u34EouEW1uUL7J09ZNzZaOG8xQTmvvtzo0S+ce2PGrtz1 MIME-Version: 1.0 X-Received: by 2002:a02:1444:: with SMTP id 65mr15475150jag.84.1586764211610; Mon, 13 Apr 2020 00:50:11 -0700 (PDT) Date: Mon, 13 Apr 2020 00:50:11 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002ce79705a3275559@google.com> Subject: WARNING in unaccount_page_cache_page (2) From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com 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: ae46d2aa mm/gup: Let __get_user_pages_locked() return -EIN.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12b60343e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=ca75979eeebf06c2 dashboard link: https://syzkaller.appspot.com/bug?extid=2854d22c7dd957a6519a 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+2854d22c7dd957a6519a@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8402 at mm/filemap.c:222 unaccount_page_cache_page+0x631/0xd60 mm/filemap.c:222 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8402 Comm: syz-executor.4 Not tainted 5.6.0-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+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] fixup_bug arch/x86/kernel/traps.c:170 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:unaccount_page_cache_page+0x631/0xd60 mm/filemap.c:222 Code: 02 00 0f 85 3a 06 00 00 48 8b 1b 31 ff 48 c1 eb 03 83 e3 01 48 89 de e8 9d 01 e2 ff 48 85 db 0f 84 d9 fb ff ff e8 ff ff e1 ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 RSP: 0018:ffffc90001287688 EFLAGS: 00010012 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc90011a34000 RDX: 000000000000ec1b RSI: ffffffff81913191 RDI: 0000000000000007 RBP: ffffea0001165dc0 R08: ffff88804a3ce240 R09: fffff9400022cbb9 R10: ffffea0001165dc7 R11: fffff9400022cbb8 R12: 0000000000000000 R13: ffff8880a3f6bbe0 R14: ffffea0001165dc0 R15: ffffea00022cd088 delete_from_page_cache_batch+0x1a6/0xec0 mm/filemap.c:355 truncate_inode_pages_range+0x58b/0x1760 mm/truncate.c:366 kill_bdev+0xd1/0x100 fs/block_dev.c:87 loop_set_status+0x315/0x1370 drivers/block/loop.c:1272 loop_set_status_old+0x223/0x310 drivers/block/loop.c:1468 lo_ioctl+0x308/0x1410 drivers/block/loop.c:1612 __blkdev_driver_ioctl block/ioctl.c:322 [inline] blkdev_ioctl+0x25b/0x660 block/ioctl.c:718 block_ioctl+0xf9/0x140 fs/block_dev.c:1996 vfs_ioctl fs/ioctl.c:47 [inline] ksys_ioctl+0x11a/0x180 fs/ioctl.c:763 __do_sys_ioctl fs/ioctl.c:772 [inline] __se_sys_ioctl fs/ioctl.c:770 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:770 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c889 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f83d100ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f83d100b6d4 RCX: 000000000045c889 RDX: 0000000020000440 RSI: 0000000000004c02 RDI: 0000000000000003 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000003f4 R14: 00000000004c6902 R15: 000000000076bf0c Kernel Offset: disabled Rebooting in 86400 seconds.. --- 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. 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 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 043F4C2BA19 for ; Mon, 13 Apr 2020 07:50:14 +0000 (UTC) Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by mail.kernel.org (Postfix) with ESMTP id 8876F206A1 for ; Mon, 13 Apr 2020 07:50:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8876F206A1 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=owner-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix) id 0374E8E0005; Mon, 13 Apr 2020 03:50:13 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id F2BB78E0001; Mon, 13 Apr 2020 03:50:12 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id E3F8C8E0005; Mon, 13 Apr 2020 03:50:12 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0181.hostedemail.com [216.40.44.181]) by kanga.kvack.org (Postfix) with ESMTP id CA6C68E0001 for ; Mon, 13 Apr 2020 03:50:12 -0400 (EDT) Received: from smtpin13.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay01.hostedemail.com (Postfix) with ESMTP id 7C2A7180AD802 for ; Mon, 13 Apr 2020 07:50:12 +0000 (UTC) X-FDA: 76702058664.13.power43_1ee3d2dd96204 X-HE-Tag: power43_1ee3d2dd96204 X-Filterd-Recvd-Size: 5729 Received: from mail-io1-f72.google.com (mail-io1-f72.google.com [209.85.166.72]) by imf02.hostedemail.com (Postfix) with ESMTP for ; Mon, 13 Apr 2020 07:50:12 +0000 (UTC) Received: by mail-io1-f72.google.com with SMTP id i15so9773364iol.5 for ; Mon, 13 Apr 2020 00:50:12 -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=tQceCnQqY/aLl6gDcc2Z8ka0DsHJea8y/PyAYUwdDBo=; b=L02rUuDSxWP00S9KKwPGmnfq/RgtO9bbfSQkyKBp4c02NTtIqZ57opMafb1GlWlxVA RN0kijQM4fAlfzrJBm5c+RwbU0yrOvDp5IZvnhTTw9ALIS9fnXGaVA7+EL2fFbe4zpRb JdPgHczSMa0ZRDhLRrpUHNJsM42i58bX6O7ZCUJvxbq/4Xl3kawoLm87rUDnjGjWI8At 5UzShIR2C3g4c85xSOrsqTBdo9Pz32mmnn1i+G8MTbMll7izb0Bc+sq7k5Qux2/qmTOO mGD4JklBFQCQABN/AHkDFZswOh5P7RdMIUEUyPKiIi/Gh20YxknsWK8JqXwCJMQ6iGZq xXrA== X-Gm-Message-State: AGi0PuZ/tQlaB4g8YxfP3FRILp3mXUsKY2yF368SPBKcPICnalbfajNv eFKzrOfmgT8PIJhHoEFWF1g9NMeLQ6rG2HinTsB4on4dSb2e X-Google-Smtp-Source: APiQypISXdqIE1ACm9Pt4Gp4cIPdcjo8s87kQ9UckHNBghw8x2QbCK3u34EouEW1uUL7J09ZNzZaOG8xQTmvvtzo0S+ce2PGrtz1 MIME-Version: 1.0 X-Received: by 2002:a02:1444:: with SMTP id 65mr15475150jag.84.1586764211610; Mon, 13 Apr 2020 00:50:11 -0700 (PDT) Date: Mon, 13 Apr 2020 00:50:11 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000002ce79705a3275559@google.com> Subject: WARNING in unaccount_page_cache_page (2) From: syzbot To: akpm@linux-foundation.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hello, syzbot found the following crash on: HEAD commit: ae46d2aa mm/gup: Let __get_user_pages_locked() return -EIN.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12b60343e00000 kernel config: https://syzkaller.appspot.com/x/.config?x=ca75979eeebf06c2 dashboard link: https://syzkaller.appspot.com/bug?extid=2854d22c7dd957a6519a 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+2854d22c7dd957a6519a@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8402 at mm/filemap.c:222 unaccount_page_cache_page+0x631/0xd60 mm/filemap.c:222 Kernel panic - not syncing: panic_on_warn set ... CPU: 1 PID: 8402 Comm: syz-executor.4 Not tainted 5.6.0-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+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:175 [inline] fixup_bug arch/x86/kernel/traps.c:170 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:unaccount_page_cache_page+0x631/0xd60 mm/filemap.c:222 Code: 02 00 0f 85 3a 06 00 00 48 8b 1b 31 ff 48 c1 eb 03 83 e3 01 48 89 de e8 9d 01 e2 ff 48 85 db 0f 84 d9 fb ff ff e8 ff ff e1 ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 ea 48 c1 ea 03 80 3c 02 RSP: 0018:ffffc90001287688 EFLAGS: 00010012 RAX: 0000000000040000 RBX: 0000000000000001 RCX: ffffc90011a34000 RDX: 000000000000ec1b RSI: ffffffff81913191 RDI: 0000000000000007 RBP: ffffea0001165dc0 R08: ffff88804a3ce240 R09: fffff9400022cbb9 R10: ffffea0001165dc7 R11: fffff9400022cbb8 R12: 0000000000000000 R13: ffff8880a3f6bbe0 R14: ffffea0001165dc0 R15: ffffea00022cd088 delete_from_page_cache_batch+0x1a6/0xec0 mm/filemap.c:355 truncate_inode_pages_range+0x58b/0x1760 mm/truncate.c:366 kill_bdev+0xd1/0x100 fs/block_dev.c:87 loop_set_status+0x315/0x1370 drivers/block/loop.c:1272 loop_set_status_old+0x223/0x310 drivers/block/loop.c:1468 lo_ioctl+0x308/0x1410 drivers/block/loop.c:1612 __blkdev_driver_ioctl block/ioctl.c:322 [inline] blkdev_ioctl+0x25b/0x660 block/ioctl.c:718 block_ioctl+0xf9/0x140 fs/block_dev.c:1996 vfs_ioctl fs/ioctl.c:47 [inline] ksys_ioctl+0x11a/0x180 fs/ioctl.c:763 __do_sys_ioctl fs/ioctl.c:772 [inline] __se_sys_ioctl fs/ioctl.c:770 [inline] __x64_sys_ioctl+0x6f/0xb0 fs/ioctl.c:770 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45c889 Code: ad b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f83d100ac78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f83d100b6d4 RCX: 000000000045c889 RDX: 0000000020000440 RSI: 0000000000004c02 RDI: 0000000000000003 RBP: 000000000076bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000000003f4 R14: 00000000004c6902 R15: 000000000076bf0c Kernel Offset: disabled Rebooting in 86400 seconds.. --- 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.