Re: Stalls when starting a VSOCK listening socket: soft lockups, RCU stalls, timeout

[Jiri Slaby]

Thomas,

On 10. 03. 26, 9:09, Thomas Gleixner wrote:
>     2) task is not longer in the task list w/o going through do_exit()

After a quick look (I have to run now, so I could be completely wrong): 
what about the task is not in the list *yet*. You use RCU -> 
for_each_process_thread(), so there could be a race with attach_pid() 
protected by tasklist_lock.

thanks,
--
js
suse labs