lkml.org 
[lkml]   [2018]   [Feb]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: WARNING: suspicious RCU usage in rds_loop_conn_alloc
> rcu_scheduler_active = 2, debug_locks = 1
> 1 lock held by syzkaller563791/4086:
> #0: (rcu_read_lock){....}, at: [<00000000bf5db0e6>]
> __rds_conn_create+0xe46/0x1b50 net/rds/connection.c:218
>

the rcu_read_lock() was added by ebeeb1ad9b. After we add that,
everything in the rcu read critical section needs to use GFP_ATOMIC
to avoid sleeping. I'll look into this fix.

--Sowmini

\
 
 \ /
  Last update: 2018-02-12 17:10    [W:0.034 / U:0.016 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site