On Wed, Aug 30, 2017 at 02:04:11PM +0800, kernel test robot wrote:

FYI, we noticed the following commit:

commit: 66d98e78e44ccb969cb3196995759d200e64b49b ("irda: move net/irda/ to drivers/staging/irda/net/")
url: https://github.com/0day-ci/linux/commits/Greg-Kroah-Hartman/irda-move-it-to-drivers-staging-so-we-can-delete-it/20170829-090816

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 -smp 2 -m 320M

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):

+-----------------------------------------------------+------------+------------+
|                                                     | 89ff9d58e6 | 66d98e78e4 |
+-----------------------------------------------------+------------+------------+
| boot_successes                                      | 0          | 0          |
| boot_failures                                       | 10         | 12         |
| IP-Config:Auto-configuration_of_network_failed      | 8          |            |
| WARNING:at_arch/x86/mm/dump_pagetables.c:#note_page | 2          |            |
| EIP:note_page                                       | 2          |            |
| BUG:unable_to_handle_kernel                         | 0          | 12         |
| Oops:#[##]                                          | 0          | 12         |
| EIP:dev_add_pack                                    | 0          | 12         |
| Kernel_panic-not_syncing:Fatal_exception            | 0          | 12         |
+-----------------------------------------------------+------------+------------+

[    0.227015] BUG: unable to handle kernel NULL pointer dereference at 00000004
[    0.228000] IP: dev_add_pack+0x37/0x80

Didn't you report this yesterday as well?  Anyway, am working on it,
give me a few hours to wake up and test...

thanks,

greg k-h