toolchain: LLVM 11.0.0
config: defconfig + fuzzing.config + kcsan.config
==================================================================
BUG: KCSAN: data-race in _find_next_bit+0x60/0x194

race at unknown origin, with read to 0xffffd7bebdd42040 of 8 bytes by interrupt on cpu 0:
 _find_next_bit+0x60/0x194
 cpumask_next_wrap+0x68/0xec
 _nohz_idle_balance+0xd4/0x2ac
 run_rebalance_domains+0x64/0xa0
 __do_softirq+0x1b0/0x440
 invoke_softirq+0x70/0xb8
 __irq_exit_rcu+0xd0/0x100
 irq_exit_rcu+0x18/0x48
 el1_interrupt+0x38/0x60
 el1h_64_irq_handler+0x18/0x24
 el1h_64_irq+0x74/0x78
 arch_local_irq_enable+0xc/0x14
 default_idle_call+0x54/0xb8
 do_idle+0x110/0x318
 cpu_startup_entry+0x2c/0x30
 rest_init+0x34c/0x360
 arch_call_rest_init+0x1c/0x28
 start_kernel+0x58c/0x790
 __primary_switched+0xbc/0xc4

value changed: 0xffffffffffff5fff -> 0xffffffffffff1fff

Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.16.0-rc4-00002-g5854738642b4 #1
Hardware name: linux,dummy-virt (DT)
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