FAT-fs (loop4): Unrecognized mount option ".pending_reads" or missing value
watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [kworker/1:1:8352]
Modules linked in:
irq event stamp: 27800510
hardirqs last  enabled at (27800509): [<ffffffff83e53f98>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline]
hardirqs last  enabled at (27800509): [<ffffffff83e53f98>] _raw_spin_unlock_irqrestore+0x38/0x40 kernel/locking/spinlock.c:191
hardirqs last disabled at (27800510): [<ffffffff83e3965b>] sysvec_apic_timer_interrupt+0xb/0xa0 arch/x86/kernel/apic/apic.c:1094
softirqs last  enabled at (273984): [<ffffffff84001042>] asm_call_irq_on_stack+0x12/0x20
softirqs last disabled at (273919): [<ffffffff84001042>] asm_call_irq_on_stack+0x12/0x20
CPU: 1 PID: 8352 Comm: kworker/1:1 Not tainted 5.10.190 #1
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.12.0-1 04/01/2014
Workqueue: events rtc_timer_do_work
RIP: 0010:__preempt_count_sub arch/x86/include/asm/preempt.h:84 [inline]
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:161 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0x25/0x40 kernel/locking/spinlock.c:191
Code: 3b 00 0f 1f 00 55 48 89 fd 48 83 c7 18 53 48 89 f3 48 8b 74 24 10 e8 fa d8 41 fd 48 89 ef e8 c2 92 42 fd f6 c7 02 75 10 53 9d <65> ff 0d b4 2f 1d 7c 5b 5d e9 8d 00 3b 00 e8 b8 91 61 fd eb e9 66
RSP: 0018:ffff88803adafb58 EFLAGS: 00000282
RAX: 0000000001a833bd RBX: 0000000000000282 RCX: 1ffffffff0d0f9a2
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff83e53f98
RBP: ffff888009ae4650 R08: 0000000000000001 R09: ffffffff8685f72f
R10: fffffbfff0d0bee5 R11: 0000000000000001 R12: ffff888009ae4740
R13: 19ebbf4b289c8000 R14: ffffffff82e74390 R15: ffff888009ae47c8
FS:  0000000000000000(0000) GS:ffff88806cf00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa7fb07dff8 CR3: 0000000045b38000 CR4: 0000000000350ee0
Call Trace:
 <IRQ>
 </IRQ>
 spin_unlock_irqrestore include/linux/spinlock.h:409 [inline]
 rtc_handle_legacy_irq drivers/rtc/interface.c:627 [inline]
 rtc_uie_update_irq+0x5c/0xa0 drivers/rtc/interface.c:652
 rtc_timer_do_work+0x282/0xbd0 drivers/rtc/interface.c:927
 process_one_work+0x9a9/0x14b0 kernel/workqueue.c:2282
 worker_thread+0x61d/0x1310 kernel/workqueue.c:2428
 kthread+0x38f/0x470 kernel/kthread.c:313
 ret_from_fork+0x22/0x30 arch/x86/entry/entry_64.S:299
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0 skipped: idling at native_safe_halt arch/x86/include/asm/irqflags.h:60 [inline]
NMI backtrace for cpu 0 skipped: idling at arch_safe_halt arch/x86/include/asm/irqflags.h:103 [inline]
NMI backtrace for cpu 0 skipped: idling at default_idle+0xe/0x20 arch/x86/kernel/process.c:706
----------------
Code disassembly (best guess):
   0:	3b 00                	cmp    (%rax),%eax
   2:	0f 1f 00             	nopl   (%rax)
   5:	55                   	push   %rbp
   6:	48 89 fd             	mov    %rdi,%rbp
   9:	48 83 c7 18          	add    $0x18,%rdi
   d:	53                   	push   %rbx
   e:	48 89 f3             	mov    %rsi,%rbx
  11:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
  16:	e8 fa d8 41 fd       	callq  0xfd41d915
  1b:	48 89 ef             	mov    %rbp,%rdi
  1e:	e8 c2 92 42 fd       	callq  0xfd4292e5
  23:	f6 c7 02             	test   $0x2,%bh
  26:	75 10                	jne    0x38
  28:	53                   	push   %rbx
  29:	9d                   	popfq
* 2a:	65 ff 0d b4 2f 1d 7c 	decl   %gs:0x7c1d2fb4(%rip)        # 0x7c1d2fe5 <-- trapping instruction
  31:	5b                   	pop    %rbx
  32:	5d                   	pop    %rbp
  33:	e9 8d 00 3b 00       	jmpq   0x3b00c5
  38:	e8 b8 91 61 fd       	callq  0xfd6191f5
  3d:	eb e9                	jmp    0x28
  3f:	66                   	data16