Re: [LKP] [xarray] 93eb07f72c: RIP:__sanitizer_cov_trace_pc

2018-12-14 Thread Matthew Wilcox
On Fri, Dec 14, 2018 at 04:31:36PM +0800, kernel test robot wrote:
> initrds=(
>   /osimage/quantal/quantal-core-x86_64-2018-11-09.cgz
>   /lkp/lkp/lkp-x86_64.cgz
>   
> /osimage/pkg/debian-x86_64-2016-08-31.cgz/trinity-static-x86_64-x86_64-6ddabfd2_2017-11-10.cgz
> )
> 
> HTTP_PREFIX=https://download.01.org/0day-ci/lkp-qemu
> wget --timestamping "${initrds[@]/#/$HTTP_PREFIX}"

I love that you're providing this service, but seriously, this is the
third report in a row that's just wrong.

--2018-12-14 08:48:21--  
https://download.01.org/0day-ci/lkp-qemu/osimage/quantal/quantal-core-x86_64-2018-11-09.cgz
Resolving download.01.org (download.01.org)... 104.90.64.218, 
2600:1408:3000:28b::ae6, 2600:1408:3000:291::ae6
Connecting to download.01.org (download.01.org)|104.90.64.218|:443... connected.
HTTP request sent, awaiting response... 404 Not Found
2018-12-14 08:48:21 ERROR 404: Not Found.

--2018-12-14 08:48:21--  
https://download.01.org/0day-ci/lkp-qemu/lkp/lkp/lkp-x86_64.cgz
Reusing existing connection to download.01.org:443.
HTTP request sent, awaiting response... 404 Not Found
2018-12-14 08:48:21 ERROR 404: Not Found.




[LKP] [xarray] 93eb07f72c: RIP:__sanitizer_cov_trace_pc

2018-12-14 Thread kernel test robot
FYI, we noticed the following commit (built with gcc-7):

commit: 93eb07f72c8d86f8fe5e90907df1cc037f6ffbb7 ("xarray: Move 
multiorder_shrink to kernel tests")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.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-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 768M

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


+-+++
| | d6427f8179 | 
93eb07f72c |
+-+++
| boot_successes  | 0  | 0  
|
| boot_failures   | 80 | 94 
|
| WARNING:at_mm/slab_common.c:#kmalloc_slab   | 80 | 94 
|
| RIP:kmalloc_slab| 80 | 94 
|
| Mem-Info| 80 | 94 
|
| invoked_oom-killer:gfp_mask=0x  | 65 | 52 
|
| Out_of_memory_and_no_killable_processes | 63 | 52 
|
| Kernel_panic-not_syncing:System_is_deadlocked_on_memory | 63 | 52 
|
| BUG:soft_lockup-CPU##stuck_for#s| 2  | 34 
|
| RIP:native_flush_tlb_global | 1  |
|
| Kernel_panic-not_syncing:softlockup:hung_tasks  | 2  | 34 
|
| RIP:lock_acquire| 1  | 4  
|
| RIP:poison_obj  | 0  | 1  
|
| RIP:__sanitizer_cov_trace_pc| 0  | 21 
|
| RIP:lock_release| 0  | 2  
|
| RIP:ftrace_likely_update| 0  | 2  
|
| RIP:check_xa_mark_1 | 0  | 1  
|
| RIP:kmem_cache_alloc| 0  | 1  
|
| RIP:xas_find| 0  | 2  
|
| INFO:task_blocked_for_more_than#seconds | 0  | 2  
|
+-+++



[  105.288689] watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [swapper/0:1]
[  105.288689] CPU: 0 PID: 1 Comm: swapper/0 Tainted: GW 
4.19.0-rc5-00319-g93eb07f #1
[  105.288689] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1 04/01/2014
[  105.288689] RIP: 0010:__sanitizer_cov_trace_pc+0x54/0x86
[  105.288689] Code: 7e 81 e2 00 01 1f 00 75 1a 48 ff 05 32 07 e9 03 8b 81 a0 
23 00 00 83 f8 02 0f 94 c0 48 ff 05 27 07 e9 03 48 ff 05 40 07 e9 03 <84> c0 74 
2d 48 8b 91 a8 23 00 00 8b 89 a4 23 00 00 48 8b 02 48 ff
[  105.288689] RSP: :88002cb07d90 EFLAGS: 0207 ORIG_RAX: 
ff13
[  105.288689] RAX:  RBX: 88002cb07e08 RCX: 88002cb00040
[  105.288689] RDX:  RSI: 824eccbe RDI: 88002cb07e08
[  105.288689] RBP: 003f R08:  R09: 
[  105.317811] R10: 88002cb07b38 R11: 0020 R12: 
[  105.317811] R13: 83cd2358 R14:  R15: 88ce1db0
[  105.321794] FS:  () GS:88002ce0() 
knlGS:
[  105.321794] CS:  0010 DS:  ES:  CR0: 80050033
[  105.321794] CR2:  CR3: 0346a000 CR4: 000406b0
[  105.325769] DR0:  DR1:  DR2: 
[  105.325769] DR3:  DR6: fffe0ff0 DR7: 0400
[  105.325769] Call Trace:
[  105.325769]  xas_move_index+0xd/0x36
[  105.329763]  xas_advance+0x28/0x31
[  105.329763]  xas_find+0x282/0x2d9
[  105.329763]  check_xa_mark_1+0x9ad/0xf6a
[  105.329763]  ? check_xa_alloc+0x55d/0x55d
[  105.333763]  check_xa_mark+0x1b/0x45
[  105.333763]  xarray_checks+0x36/0x154
[  105.333763]  do_one_initcall+0x282/0x619
[  105.333763]  ? ftrace_likely_update+0x27a/0x2aa
[  105.333763]  kernel_init_freeable+0x646/0x783
[  105.337780]  ? rest_init+0x1d4/0x1d4
[  105.337780]  kernel_init+0x12/0x21f
[  105.337780]  ? rest_init+0x1d4/0x1d4
[  105.337780]  ret_from_fork+0x24/0x30
[  105.337780] Kernel panic - not syncing: softlockup: hung tasks
[  105.341753] CPU: 0 PID: 1 Comm: swapper/0 Tainted: GWL
4.19.0-rc5-00319-g93eb07f #1
[  105.353765] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 
1.10.2-1