Re: [linus:master] [rcu] b41642c877: BUG:kernel_hang_in_boot_stage

[Frederic Weisbecker]

Le Thu, Aug 07, 2025 at 01:39:32PM +0800, kernel test robot a écrit :
> 
> 
> Hello,
> 
> kernel test robot noticed "BUG:kernel_hang_in_boot_stage" on:
> 
> commit: b41642c87716bbd09797b1e4ea7d904f06c39b7b ("rcu: Fix rcu_read_unlock() deadloop due to IRQ work")
> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git master
> 
> [test failed on linus/master      7e161a991ea71e6ec526abc8f40c6852ebe3d946]
> [test failed on linux-next/master 5c5a10f0be967a8950a2309ea965bae54251b50e]
> 
> in testcase: boot
> 
> config: i386-randconfig-2006-20250804
> compiler: clang-20
> test machine: qemu-system-x86_64 -enable-kvm -cpu SandyBridge -smp 2 -m 16G
> 
> (please refer to attached dmesg/kmsg for entire log/backtrace)
> 
> 
> +-------------------------------+------------+------------+
> |                               | d827673d8a | b41642c877 |
> +-------------------------------+------------+------------+
> | boot_successes                | 15         | 0          |
> | boot_failures                 | 0          | 15         |
> | BUG:kernel_hang_in_boot_stage | 0          | 15         |
> +-------------------------------+------------+------------+
> 
> 
> 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@xxxxxxxxx>
> | Closes: https://lore.kernel.org/oe-lkp/202508071303.c1134cce-lkp@xxxxxxxxx

#syz test