On Wed, May 22, 2013 at 12:19 PM, Ming Lei <tom.leim...@gmail.com> wrote: > On Wed, May 22, 2013 at 12:15 PM, Ming Lei <tom.leim...@gmail.com> wrote: >> On Tue, May 21, 2013 at 11:56 AM, zhangwei(Jovi) >> >> Nice job, I have run it on ARM already with only one line change. >> >> But looks 'Control-C' can't stop the tracing or need some time to complete >> it, >> see below: > > Sometimes, it doesn't work: > > $ sudo ./ktap ./scripts/kretprobe.kp > ...... > vfs_read! (execname sshd); retval:38 > ^Cvfs_read! (execname sshd); retval:38 > > probe ending > vfs_read! (execname sshd); retval:48 > vfs_read! (execname sshd); retval:2 > ^C > ^C^C^C > ^C^C^C^C^C^C^C > > ^C^C^C^C^C^C
This one can be fixed by below patch, but can't work on the last one. diff --git a/vm.c b/vm.c index c5f5733..a24a389 100644 --- a/vm.c +++ b/vm.c @@ -1060,7 +1060,7 @@ ktap_State *kp_newthread(ktap_State *mainthread) void kp_user_complete(ktap_State *ks) { - if (!ks || !G(ks)->user_completion) + if (!ks || !G(ks) || !G(ks)->user_completion) return; complete(G(ks)->user_completion); Thanks, -- Ming Lei -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/