Re: [syzbot] [mm?] INFO: rcu detected stall in purge_vmap_node

[Hillf Danton]

> Date: Mon, 12 Jan 2026 05:13:02 -0800
> Hello,
> 
> syzbot has tested the proposed patch but the reproducer is still triggering an issue:
> INFO: rcu detected stall in x64_sys_call
> 
Given the test result of your patch, can you specify the root cause of the
stall reported, Deepanshu?