Re: [linux-next:master] [fs] 51a146e059: BUG:kernel_hang_in_boot_stage

From: Eric Sandeen
Date: Sat Dec 27 2025 - 19:18:59 EST


On 12/26/25 2:01 PM, Eric Sandeen wrote:
> On 12/22/25 8:36 PM, kernel test robot wrote:
>>
>>
>> Hello,
>>
>>
>> we don't have enough knowledge to analyze the connection between the issue and
>> this change. just observed the issue is quite persistent on 51a146e059 and
>> clean on its parent.
>
> Odd. Not much to go on, and I don't see any obvious connection either, but
> I'll see if i can reproduce.

I can more or less reproduce, I think, though I am not getting the hung task
warning.

Oddly if I just put the

struct dentry *(*mount) ...

member back in struct file_system_type it seems to resolve the problem.
Even if I give it a different symbol name (like mount_foo).

I'm confused.

-Eric