toolchain: GCC 11.1.0
config: defconfig + fuzzing.config + kcsan.config
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BUG: KCSAN: data-race in vprintk_emit+0x320/0x494

race at unknown origin, with read to 0xffffad876157c490 of 1 bytes by task 0 on cpu 76:
 vprintk_emit+0x320/0x494
 vprintk_default+0x50/0x60
 vprintk+0x174/0x1d0
 _printk+0x78/0xa4
 its_cpu_init+0x9c8/0x1680
 gic_starting_cpu+0x84/0xd0
 cpuhp_invoke_callback+0x28c/0x520
 cpuhp_invoke_callback_range+0xc4/0x150
 notify_cpu_starting+0xf8/0x170
 secondary_start_kernel+0x1c0/0x254
 __secondary_switched+0x94/0x98

value changed: 0x01 -> 0x00

Reported by Kernel Concurrency Sanitizer on:
CPU: 76 PID: 0 Comm: swapper/76 Not tainted 5.16.0-rc4-00002-g58b9ffdc5dc3 #1
Hardware name: linux,dummy-virt (DT)
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