13:11 <irker126> systemtap: dsmith systemtap.git:refs/heads/master * release-3.2-163-g2c2b35f / httpd/api.cxx httpd/main.cxx: The http server code now cleans up environment variables. http://tinyurl.com/ybr9mxr3

13:45 <irker126> systemtap: smakarov systemtap.git:refs/heads/serhei/rt-fixes * release-3.2-126-g726989b / runtime/stp_utrace.c: stp_utrace.c :: disable earlier PROVISIONAL FIX, change utrace->lock to regular non-raw spinlock http://tinyurl.com/ybrymvsb

15:51 <atomlin> systemtap, given module(MPATTERN).function(PATTERN) does PATTERN support the name of a module function + relative offset e.g. "foo" + 0x2d ?

15:51 <atomlin> I haven't checked the source yet

15:53 <atomlin> ^^ e.g. module("video").function("acpi_video_cmp_level+0x2d") ...

15:55 <atomlin> fche, mjw ^^ ? :-)

16:02 <mjw> eh, yeah, but I would have to check the manual.

16:02 <mjw> It might be that you need s/.function/.statement/

16:02 <atomlin> ah

16:03 <atomlin> Because I can do this if I use kprobes directly

16:03 <atomlin> i.e. invoke register_kprobes()

16:05 <fche> atomlin, raw kernel addresses are available via probe kernel.statement(0xaddr).absolute

16:06 <fche> .statement("function@file.c:##") type probes don't take numeric offsets

16:06 <fche> though for them you'd use symbolic offsets (e.g. line numbers)

16:06 <atomlin> fche, but if I don't know the absolute address

16:07 <atomlin> Perhaps something like: 'kprobe.module("video").statement("acpi_video_cmp_level+0x2d")'

16:07 <atomlin> ?

16:08 <fche> we could invent more high-level probe-point syntax

16:08 <fche> or just that, yeah

16:08 <fche> but stap does not currently support this :(

16:08 <atomlin> I will attemp this

16:08 <atomlin> ack

16:08 <fche> egg selent smit

16:08 <fche> smithers

16:09 <atomlin> With Dwarf I guess without 'kprobe' can work too

16:09 <fche> or rather with symbol table info only, kprobe.* can work too

16:10 <atomlin> ^^ would have to be built on the target machine though right?

16:10 <atomlin> or can we do this locally then pass the built .ko file to then use 'staprun' on the target machine?

18:51 <irker038> systemtap: smakarov systemtap.git:refs/heads/serhei/rt-fixes * release-3.2-128-g521789a / runtime/stp_utrace.c: WORK IN PROGRESS :: use task_work to defer reporting work out of sensitive tracepoint context http://tinyurl.com/yclxvs43

18:51 <irker038> systemtap: smakarov systemtap.git:refs/heads/serhei/rt-fixes * release-3.2-127-gdd8c213 / testsuite/systemtap.examples/process/pfiles.stp: PROVISIONAL -- flag process/pfiles.stp as not working with CONFIG_PREEMPT_RT_FULL http://tinyurl.com/yb6xgzmq