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RE: probe timer.profile registration error
- From: "Turgis, Frederic" <f-turgis at ti dot com>
- To: Wenhua Zhang <shiziwen at gmail dot com>, "systemtap at sourceware dot org" <systemtap at sourceware dot org>
- Date: Sat, 20 Oct 2012 18:56:01 +0000
- Subject: RE: probe timer.profile registration error
- References: <CAMfW_3+e_z0V1jjnjJm4ZREGky8ESTyds_Pz3MWSXFDzLBiTLw@mail.gmail.com>
I think you would have had an error in previous pass but you could check that you have CONFIG_PROFILING enabled so that register_timer_hook() is defined in kernel. "probe timer.profile" relies on this function.
Regards
Fred
OMAP Platform Business Unit - System Platform Engineering - Platform & Product Entitlement
>
Texas Instruments France SA, 821 Avenue Jack Kilby, 06270 Villeneuve Loubet. 036 420 040 R.C.S Antibes. Capital de EUR 12.654.784
-----Original Message-----
>From: systemtap-owner@sourceware.org [mailto:systemtap-owner@sourceware.org] On Behalf Of Wenhua Zhang
>Sent: Saturday, October 20, 2012 6:00 AM
>To: systemtap@sourceware.org
>Subject: probe timer.profile registration error
>
>Hi ，
>When I run the stap command as below,
>
> /opt/systemtap/bin/stap --ldd -d /usr/local/nginx/sbin/nginx
> --all-modules -D MAXMAPENTRIES=5120 -D MAXACTION=20000 -D
> MAXTRACE=50 -D MAXSTRINGLEN=1024 -D MAXBACKTRACE=100 -x 25017 a.stp
> --vp 00001 > a.out
>
>There is an error:
> WARNING: missing unwind/symbol data for module
> 'stap_97bdcbebec34bca89d728c7b361aa64_24788'
> WARNING: missing unwind/symbol data for module 'uprobes'
> Pass 5: starting run.
> ERROR: probe timer.profile registration error (rc -16)
>
> The stap file as:
>global s;
> global quit = 0;
>
> probe timer.profile {
> if (pid() == target()) {
> if (quit) {
> foreach (i in s-) {
> print_ustack(i);
> printf("\t%d\n", @count(s[i]));
> }
> exit()
> } else {
> s[ubacktrace()] <<< 1;
> }
> }
> }
>
> probe timer.s(20) {
> quit = 1
> }
>
>Can you help me find what happened and what should I do to resolve it?
>Thanks very much.
>
>Best Wishes,
>Wenhua