[RFC]Something wrong with my module

On 2012-04-12 22:08:08 (+0800), harryxiyou [off-list ref] wrote:

On Thu, Apr 12, 2012 at 10:04 PM, harryxiyou [off-list ref] wrote:

quoted

On Thu, Apr 12, 2012 at 9:59 PM, Frank Ch. Eigler [off-list ref] wrote:

quoted

kristof wrote:

quoted

[...]
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