ftrace Reply-To: Hi, Steven.
There is a confusion which blocks my step to go further for ftrace. Does ftrace guarantee that the replaced function is finished while ftrace is replacing the functions? In the other word, is there a possible that new function starts to run, while old function is also running (maybe this function is called before replacing the function). Function schedule_on_each_cpu maybe fails to excute, if there is no enough memory to be allocated? Then kernel may be unstable, if ftrace continues, without handling the error, does it? Previously, I posted a patch to fix this issue, and you nacked it. [PATCH] workqueue: Add the allocation flags to function schedule_on_each_cpu_gfp Thanks Minfei -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
