On Sat, 25 Apr 2015 17:29:02 -0400
Jeff Layton wrote:
> Hi, I have some code using the cds_lfht infrastructure, and recently
> added a function to check to see if the table was empty using
> cds_lfht_count_nodes. That function just does this:
>
> rcu_read_lock();
> cds_lfht_count
>> However, loading multiple probes with
>> either --kmod-probes or --extra-kmod-probes still does not work:
>> $ sudo lttng-sessiond -vvv --extra-kmod-probes=sched,napi
>> [...]
>> DEBUG1 - 11:42:18.492870 [5358/5358]: Modprobe successfully lttng-probe-napi
>> (in modprobe_lttng() at modprobe.c:28
>
> Why do you need to load those explicitly ? They should be
> already loaded by default. I don't get those errors here.
> Which shell are you using (sh symlink) ? Can you reproduce
> using bash ?
Ok. Found the bug. In append_list_to_probes() index is used to get
the current index into the prob
Hi, I have some code using the cds_lfht infrastructure, and recently
added a function to check to see if the table was empty using
cds_lfht_count_nodes. That function just does this:
rcu_read_lock();
cds_lfht_count_nodes(ht, &before, &count, &after);
rcu_read_unlock();
Wha
Merged into master, stable-0.8, stable-0.7, thanks !
Mathieu
- Original Message -
> On Sat, Apr 25, 2015 at 11:52:29AM -0400, Mathieu Desnoyers wrote:
> > The transitive dependency between:
> >
> > RCU read-side C.S. -> synchronize_rcu -> rcu_gp_lock -> rcu_register_thread
> >
> > and t
On Sat, Apr 25, 2015 at 11:52:29AM -0400, Mathieu Desnoyers wrote:
> The transitive dependency between:
>
> RCU read-side C.S. -> synchronize_rcu -> rcu_gp_lock -> rcu_register_thread
>
> and the dependency:
>
> pthread_join -> awaiting for thread completion
>
> Can block a thread on join, and
The transitive dependency between:
RCU read-side C.S. -> synchronize_rcu -> rcu_gp_lock -> rcu_register_thread
and the dependency:
pthread_join -> awaiting for thread completion
Can block a thread on join, and thus have the side-effect of deadlocking
a thread doing a pthread_join while within a
- Original Message -
> >
> > Why do you need to load those explicitly ? They should be
> > already loaded by default. I don't get those errors here.
> > Which shell are you using (sh symlink) ? Can you reproduce
> > using bash ?
> Ok. Found the bug. In append_list_to_probes() index is us
