On Thu, Sep 06, 2007 at 04:01:30PM -0400, Mathieu Desnoyers wrote: <snip>
> @@ -716,8 +720,9 @@ static int __kprobes pre_handler_kretpro > struct kretprobe_instance, uflist); > ri->rp = rp; > ri->task = current; > + kernel_text_lock(); > arch_prepare_kretprobe(ri, regs); > - > + kernel_text_unlock(); pre_handler_kretprobe() is run when the entry probe for a retprobed function is hit and cannot block. You can't take a mutex here. And why do we need to take the kernel_text_lock() here anyway? All arch_prepare_kretprobe() does is modify the return address stored either on stack or a register (arch specific) to the trampoline. We don't change any kernel text here. Ananth - 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/
