On 2012-04-12 22:08:08 (+0800), harryxiyou <harryxi...@gmail.com> wrote: > On Thu, Apr 12, 2012 at 10:04 PM, harryxiyou <harryxi...@gmail.com> wrote: > > On Thu, Apr 12, 2012 at 9:59 PM, Frank Ch. Eigler <f...@redhat.com> wrote: > >> > >> kristof wrote: > >> > >>> [...] > >>> You're iterating over the tasks list without locking it. > >>> [...] > >>> Try to take the tasklist_lock. > >> > >> Unfortunately, tasklist_lock is not SYMBOL_EXPORT*'d to modules. > > > > What about other ones? Do you have any other suggestions? > > What about task_lock() ? > task_lock() locks a single task, not the list of tasks.
I'd be included to take the fact that tasklist_lock is not exported as a hint that you're not supposed to be messing with the list of tasks from kernel modules. Regards, Kristof _______________________________________________ Kernelnewbies mailing list Kernelnewbies@kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
