Re: [PATCH 3/4] proc: Follow p_parent to root for checking startup process

[Damien Zammit]

Hi,

On 17/4/21 7:40 pm, Samuel Thibault wrote:
> Damien Zammit, le sam. 17 avril 2021 19:12:11 +1000, a ecrit:
>> Since the bootstrap filesystem is no longer a single process,
>> but can be spread among eg, pci-arbiter and rumpdisk, we cannot
>> just check the p_parent of the process
> 
> ? Aren't all of pci-arbiter, rumpdisk, ext2fs, proc, auth all children
> of startup all the same?
> 
> Samuel
> 

When I boot arbiter+rumpdisk the pstree looks like:

     |-pci-arbiter
     |-startup-+-auth
               |-ext2fs-+-console...
               |-gnumach
               `-proc

(rumpdisk is nowhere to be seen, and arbiter is not a child of startup).

Something must be fishy with proc_child calls in startup.

Damien