current->kmsan.in_runtime: -1, last_caller:           (null)
------------[ cut here ]------------
kernel BUG at mm/kmsan/kmsan_instr.c:85!
invalid opcode: 0000 [#1] SMP
CPU: 1 PID: 23303 Comm: kworker/u5:7 Not tainted 4.20.0-rc7+ #12
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__msan_instrument_asm_store+0x12d/0x130 mm/kmsan/kmsan_instr.c:85
Code: 29 0d 59 ff 0f 0b e8 72 f5 7b ff 85 c0 75 1b 8b b3 88 09 00 00 48 8b 93 80 09 00 00 48 c7 c7 4e 72 5f 8b 31 c0 e8 83 22 7c ff <0f> 0b 90 55 48 89 e5 41 57 41 56 41 54 53 48 89 d3 49 89 f6 49 89
RSP: 0018:ffff88808c4bf7d0 EFLAGS: 00010046
RAX: 000000000000003c RBX: ffff8881c3fc0000 RCX: e6e5cc16deb3fa00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88821fd36abc
RBP: ffff88808c4bf808 R08: 0000000000000000 R09: ffff88821fd38f10
R10: 0000000000000000 R11: ffffffff861d8220 R12: 0000000000000086
R13: ffff88808c4bf830 R14: 0000000000000008 R15: ffff88808c4bf830
FS:  0000000000000000(0000) GS:ffff88821fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f918b570000 CR3: 000000011695b000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 native_save_fl arch/x86/include/asm/irqflags.h:27 [inline]
 arch_local_save_flags arch/x86/include/asm/irqflags.h:75 [inline]
 arch_local_irq_save arch/x86/include/asm/irqflags.h:116 [inline]
 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline]
 _raw_spin_lock_irqsave+0x72/0x170 kernel/locking/spinlock.c:152
 rq_lock_irqsave kernel/sched/sched.h:1108 [inline]
 load_balance+0x5830/0x9ad0 kernel/sched/fair.c:8724
 idle_balance kernel/sched/fair.c:9656 [inline]
 pick_next_task_fair+0xaf1/0x3240 kernel/sched/fair.c:6757
 pick_next_task+0x1ba/0x420 kernel/sched/core.c:3322
 __schedule+0x1f7/0x830 kernel/sched/core.c:3452
 schedule+0x1ab/0x2b0 kernel/sched/core.c:3522
 kthread+0x3cb/0x4e0 kernel/kthread.c:241
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:355
Modules linked in:
---[ end trace 13b8ce1c6fb5cecd ]---
RIP: 0010:__msan_instrument_asm_store+0x12d/0x130 mm/kmsan/kmsan_instr.c:85
Code: 29 0d 59 ff 0f 0b e8 72 f5 7b ff 85 c0 75 1b 8b b3 88 09 00 00 48 8b 93 80 09 00 00 48 c7 c7 4e 72 5f 8b 31 c0 e8 83 22 7c ff <0f> 0b 90 55 48 89 e5 41 57 41 56 41 54 53 48 89 d3 49 89 f6 49 89
RSP: 0018:ffff88808c4bf7d0 EFLAGS: 00010046
RAX: 000000000000003c RBX: ffff8881c3fc0000 RCX: e6e5cc16deb3fa00
RDX: 0000000000000000 RSI: 0000000000000001 RDI: ffff88821fd36abc
RBP: ffff88808c4bf808 R08: 0000000000000000 R09: ffff88821fd38f10
R10: 0000000000000000 R11: ffffffff861d8220 R12: 0000000000000086
R13: ffff88808c4bf830 R14: 0000000000000008 R15: ffff88808c4bf830
FS:  0000000000000000(0000) GS:ffff88821fd00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f918b570000 CR3: 000000011695b000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400