[linus:master] [clocksource] 76031d9536: RIP:clocksource_watchdog

[linus:master] [clocksource] 76031d9536: RIP:clocksource_watchdog

[kernel test robot]

Hello,

kernel test robot noticed "RIP:clocksource_watchdog" on:

commit: 76031d9536a076bf023bedbdb1b4317fc801dd67 ("clocksource: Make negative motion detection more robust")
https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master

in testcase: kunit
version: 
with following parameters:

	group: group-01



config: x86_64-rhel-9.4-kunit
compiler: gcc-12
test machine: 8 threads 1 sockets Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz (Haswell) with 16G memory

(please refer to attached dmesg/kmsg for entire log/backtrace)



If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <oliver.sang@intel.com>
| Closes: https://lore.kernel.org/oe-lkp/202412191612.fdac00f9-lkp@intel.com



[  747.568289][    C0] Oops: general protection fault, probably for non-canonical address 0xee0da9ec6bec8dc6: 0000 [#1] PREEMPT SMP KASAN PTI
[  747.571923][ T6047] raid6test: test_disks(1, 4): faila=  1(D)  failb=  4(Q)  OK
[  747.584305][    C0] KASAN: maybe wild-memory-access in range [0x706d6f635f646e30-0x706d6f635f646e37]
[  747.584309][    C0] CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Tainted: G S  B   W        N 6.13.0-rc1-00002-g76031d9536a0 #1
[  747.591625][ T6047] raid6test: test_disks(2, 3): faila=  2(D)  failb=  3(P)  OK
[  747.600721][    C0] Tainted: [S]=CPU_OUT_OF_SPEC, [B]=BAD_PAGE, [W]=WARN, [N]=TEST
[  747.600722][    C0] Hardware name: Dell Inc. OptiPlex 9020/0DNKMN, BIOS A05 12/05/2013
[ 747.600724][ C0] RIP: 0010:clocksource_watchdog (kbuild/src/consumer/kernel/time/clocksource.c:446)
[  747.611497][ T6047] raid6test: test_disks(2, 4): faila=  2(D)  failb=  4(Q)  OK
[ 747.618774][ C0] Code: 08 00 00 49 8b 84 24 a0 00 00 00 4c 8d a0 60 ff ff ff 48 3d a0 65 a1 85 0f 84 a9 05 00 00 4d 8d 74 24 60 4c 89 f0 48 c1 e8 03 <42> 80 3c 38 00 0f 85 2b 08 00 00 41 f6 44 24 60 40 75 9e 48 8d 84
All code
========
   0:	08 00                	or     %al,(%rax)
   2:	00 49 8b             	add    %cl,-0x75(%rcx)
   5:	84 24 a0             	test   %ah,(%rax,%riz,4)
   8:	00 00                	add    %al,(%rax)
   a:	00 4c 8d a0          	add    %cl,-0x60(%rbp,%rcx,4)
   e:	60                   	(bad)
   f:	ff                   	(bad)
  10:	ff                   	(bad)
  11:	ff 48 3d             	decl   0x3d(%rax)
  14:	a0 65 a1 85 0f 84 a9 	movabs 0x5a9840f85a165,%al
  1b:	05 00 
  1d:	00 4d 8d             	add    %cl,-0x73(%rbp)
  20:	74 24                	je     0x46
  22:	60                   	(bad)
  23:	4c 89 f0             	mov    %r14,%rax
  26:	48 c1 e8 03          	shr    $0x3,%rax
  2a:*	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1)		<-- trapping instruction
  2f:	0f 85 2b 08 00 00    	jne    0x860
  35:	41 f6 44 24 60 40    	testb  $0x40,0x60(%r12)
  3b:	75 9e                	jne    0xffffffffffffffdb
  3d:	48                   	rex.W
  3e:	8d                   	.byte 0x8d
  3f:	84                   	.byte 0x84

Code starting with the faulting instruction
===========================================
   0:	42 80 3c 38 00       	cmpb   $0x0,(%rax,%r15,1)
   5:	0f 85 2b 08 00 00    	jne    0x836
   b:	41 f6 44 24 60 40    	testb  $0x40,0x60(%r12)
  11:	75 9e                	jne    0xffffffffffffffb1
  13:	48                   	rex.W
  14:	8d                   	.byte 0x8d
  15:	84                   	.byte 0x84
[  747.618778][    C0] RSP: 0018:ffffc90000007cc8 EFLAGS: 00010206
[  747.626349][ T6047] raid6test: test_disks(3, 4): faila=  3(P)  failb=  4(Q)  OK
[  747.634233][    C0] RAX: 0e0dadec6bec8dc6 RBX: ffffffffc12501e0 RCX: ffffffff812d27b5
[  747.634235][    C0] RDX: fffffbfff0b42cad RSI: 0000000000000008 RDI: ffffffffc1255c20
[  747.634237][    C0] RBP: 0000000000000000 R08: 0000000000000001 R09: fffffbfff0b42cac
[  747.634249][    C0] R10: ffffffff85a16567 R11: 1ffff11074f88ce0 R12: 706d6f635f646dd3
[  747.643325][ T6047] raid6test: testing the 11-disk case...
[  747.647354][    C0] R13: ffff8883a7c31b40 R14: 706d6f635f646e33 R15: dffffc0000000000
[  747.647357][    C0] FS:  0000000000000000(0000) GS:ffff8883a7c00000(0000) knlGS:0000000000000000
[  747.647359][    C0] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  747.647361][    C0] CR2: 000055850fddbb28 CR3: 000000041b46c004 CR4: 00000000001726f0
[  747.647373][    C0] DR0: ffffffff8788e584 DR1: ffffffff8788e585 DR2: ffffffff8788e582
[  747.647375][    C0] DR3: ffffffff8788e583 DR6: 00000000fffe0ff0 DR7: 0000000000000600
[  747.666802][ T6047] raid6test: test_disks(0, 1): faila=  0(D)  failb=  1(D)  OK
[  747.672676][    C0] Call Trace:
[  747.672677][    C0]  <IRQ>
[ 747.672679][ C0] ? die_addr (kbuild/src/consumer/arch/x86/kernel/dumpstack.c:421 kbuild/src/consumer/arch/x86/kernel/dumpstack.c:460)
[ 747.672694][ C0] ? exc_general_protection (kbuild/src/consumer/arch/x86/kernel/traps.c:751 kbuild/src/consumer/arch/x86/kernel/traps.c:693)
[  747.680000][ T6047] raid6test: test_disks(0, 2): faila=  0(D)  failb=  2(D)  OK
[ 747.687783][ C0] ? asm_exc_general_protection (kbuild/src/consumer/arch/x86/include/asm/idtentry.h:617)


The kernel config and materials to reproduce are available at:
https://download.01.org/0day-ci/archive/20241219/202412191612.fdac00f9-lkp@intel.com



-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki