Re: call_rcu from trace_preempt

From: Alexei Starovoitov
Date: Tue Jun 16 2015 - 02:25:31 EST

On 6/15/15 11:06 PM, Daniel Wagner wrote:
with the above 'fix' the trace.patch is now passing.
It still crashes for me with the original test program

[ 145.908013] [<ffffffff810d1da1>] ? __rcu_reclaim+0x101/0x3d0
[ 145.908013] [<ffffffff810d1ca0>] ? rcu_barrier_func+0x250/0x250
[ 145.908013] [<ffffffff810abc03>] ? trace_hardirqs_on_caller+0xf3/0x240
[ 145.908013] [<ffffffff810d9afa>] rcu_do_batch+0x2ea/0x6b0

yes. full bpf test still crashes.
That's why I said trace.patch is passing ;)
There is something else in there. One 'fix' at a time.
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