On Thu, 19 Jan 2017 08:40:25 +0800 Ye Xiaolong <[email protected]> wrote:
> On 01/18, Andrew Morton wrote: > >On Wed, 18 Jan 2017 09:23:04 +0800 kernel test robot <[email protected]> > >wrote: > > > >> > >> 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 > >> > >> ... > >> > >> [ 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 > > > >Thanks. > > > >That isn't a very good backtrace. Is that really the entire output? > > Hmm, it is a fragment of the entire backtrace, the whole output can be found > in > attached dmesg.xz, we'll try to paste the whole backtrace next time. Ah, OK, thanks. This: [ 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 [ 2.972587] __list_del_entry_valid+0x43/0xb0 [ 2.973186] devices_kset_move_last+0x2d/0x80 [ 2.973815] ? driver_sysfs_add+0x5a/0x80 [ 2.974341] really_probe+0x127/0x230 [ 2.974849] __driver_attach+0x7f/0xa0 [ 2.975345] ? really_probe+0x230/0x230 [ 2.975873] bus_for_each_dev+0x4f/0x80 [ 2.976375] driver_attach+0x14/0x20 [ 2.976868] ? really_probe+0x230/0x230 [ 2.977370] serio_handle_event+0x1bb/0x230 [ 2.977953] ? process_one_work+0x105/0x3f0 [ 2.978504] process_one_work+0x153/0x3f0 [ 2.979054] ? process_one_work+0x105/0x3f0 [ 2.979596] worker_thread+0x39/0x460 [ 2.980104] ? _raw_spin_unlock_irqrestore+0x3d/0x50 [ 2.980803] kthread+0xd9/0x110 [ 2.981211] ? process_one_work+0x3f0/0x3f0 [ 2.981782] ? __kthread_create_on_node+0x190/0x190 [ 2.982426] ret_from_fork+0x19/0x30 [ 2.982919] ---[ end trace 842edab4ceba3acb ]---
