linux-kernel - [lkp-robot] e5a305ac4a: WARNING:at_lib/list_debug.c:#__list_del_entry

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Message-ID: <20170118012304.GB14484@yexl-desktop>
Date:   Wed, 18 Jan 2017 09:23:04 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     Matthew Wilcox <willy@...ux.intel.com>
Cc:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Matthew Wilcox <willy@...radead.org>,
        Matthew Wilcox <mawilcox@...rosoft.com>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Konstantin Khlebnikov <koct9i@...il.com>,
        Ross Zwisler <ross.zwisler@...ux.intel.com>,
        Tejun Heo <tj@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [lkp-robot] e5a305ac4a:
 WARNING:at_lib/list_debug.c:#__list_del_entry_valid


FYI, we noticed the following commit:

commit: e5a305ac4a5233e039586c97f4ea643a4c7dc484 ("Reimplement IDR and IDA using the radix tree")
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master

in testcase: trinity
with following parameters:

	runtime: 300s

test-description: Trinity is a linux system call fuzz tester.
test-url: http://codemonkey.org.uk/projects/trinity/


on test machine: qemu-system-i386 -enable-kvm -m 256M

caused below changes:


+------------------------------------------------------+------------+------------+
|                                                      | 67166d6174 | e5a305ac4a |
+------------------------------------------------------+------------+------------+
| boot_successes                                       | 0          | 0          |
| boot_failures                                        | 8          | 8          |
| WARNING:at_kernel/locking/mutex.c:#mutex_lock_nested | 8          |            |
| BUG:unable_to_handle_kernel                          | 8          | 5          |
| Oops                                                 | 8          | 5          |
| Kernel_panic-not_syncing:Fatal_exception             | 8          | 6          |
| WARNING:at_lib/list_debug.c:#__list_del_entry_valid  | 0          | 8          |
| WARNING:at_lib/list_debug.c:#__list_add_valid        | 0          | 8          |
| general_protection_fault:#bc[##]PREEMPT              | 0          | 1          |
+------------------------------------------------------+------------+------------+



[    2.963488] input: AT Translated Set 2 keyboard as /devices/platform/i8042/serio0/input/input1
[    2.964998] evbug: Connected device: input1 (AT Translated Set 2 keyboard at isa0060/serio0/input0)
[    2.966202] ------------[ cut here ]------------
[    2.966844] WARNING: CPU: 0 PID: 14 at lib/list_debug.c:55 __list_del_entry_valid+0x43/0xb0
[    2.968198] list_del corruption. next->prev should be bc904168, but was b215df80
[    2.969171] CPU: 0 PID: 14 Comm: kworker/0:1 Not tainted 4.10.0-rc2-02114-ge5a305a #1
[    2.970209] Workqueue: events_long serio_handle_event
[    2.970893] Call Trace:
[    2.971217]  dump_stack+0x16/0x19
[    2.971677]  __warn+0xa5/0xc0
[    2.972074]  warn_slowpath_fmt+0x28/0x30


To reproduce:

        git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script  # job-script is attached in this email



Thanks,
Xiaolong

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