Messages in this thread | | | Date | Mon, 12 Feb 2018 11:09:51 -0500 | From | Sowmini Varadhan <> | Subject | Re: WARNING: suspicious RCU usage in rds_loop_conn_alloc |
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> 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
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