15:45 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-71-g85f0ada / bpf-translate.cxx: fix bug where implicit sign extension was corrupting string bytes http://tinyurl.com/y6cxbdxr

15:45 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-72-g382451b / bpf-opt.cxx: fix bug where operand fixup was improperly performed http://tinyurl.com/y5xeyu6d

15:45 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-73-g3303205 / bpf-internal.h stapbpf/bpfinterp.cxx tapset/string.stp: enable character escaping macros for stapbpf http://tinyurl.com/yx8vdcne

15:45 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-74-gd8eb175 / stapbpf/stapbpf.cxx: clear stapbpf procfs read message after each run http://tinyurl.com/y2y8d2vc

15:45 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-75-gc1c3983 / bpf-translate.cxx: add valid range check for octal escape sequence (<128) http://tinyurl.com/y5a9efuz

15:47 <fche> sapatel__, octal escape sequences can go to 255 no?

16:19 <DUKENUKEM> hey guys im trying to probe get_page() which is an inline function but im getting "error: while resolving probe point 'kernel'" and "error: no match (similar functions: get_page, km_get_page, vm_get_page, bio_get_page, dio_get_page)"

16:19 <DUKENUKEM> im am trying probe kernel.function("get_page")

16:20 <DUKENUKEM> probe kernel.function("get_page").return

16:20 <DUKENUKEM> do i have to do something different for inlined functions

16:20 <DUKENUKEM> ?

16:35 <fche> DUKENUKEM, kernel.function() should more or less work; .return won't

16:35 <fche> depends on gcc version etc. on how well it preserves the call site info

16:35 <DUKENUKEM> ah well that is disappointing

16:35 <DUKENUKEM> because i am calculating latency of functions

16:35 <DUKENUKEM> by doing .return probes

16:35 <DUKENUKEM> and then

16:35 <DUKENUKEM> get_page_stats <<< gettimeofday_ns() - @entry(gettimeofday_ns());

16:36 <fche> yeah, unfortunately inline functions don't 'return'

16:36 <fche> not at the object code level

16:36 <DUKENUKEM> ah

16:36 <fche> so e.g. what para-callgraph.stp does is use FOO.function.call and FOO.function.return pairs, which exclude inline functions, and which therefore match up pretty well

17:01 <DUKENUKEM> fche: im now having the problem with a non inlined function

17:01 <DUKENUKEM> and it shows my function name in the similar functions list

17:01 <DUKENUKEM> follow_page_pter

17:01 <DUKENUKEM> pte

17:03 <DUKENUKEM> semantic error: no match (similar functions: follow_page_pte, follow_pfn_pte, follow_page_mask, follow_pte, __follow_pte)

17:04 <DUKENUKEM> oh for some reason i guess its inlined even though in the source it doesnt have the inline directive

17:09 <fche> modern compilers do that ALL THE TIME

17:09 <DUKENUKEM> :(

17:09 <fche> so yeah use function("...").call and .return

17:09 <fche> like the para-callgraph.stp sample

17:20 <DUKENUKEM> fche: youre talking about this?

17:20 <DUKENUKEM> https://github.com/storypku/systemtap/blob/master/general/para-callgraph.stp

17:21 <DUKENUKEM> fche: im not exactly sure what is going on in this script :)

17:26 <DUKENUKEM> i guess i dont see the difference from what im doing

17:26 <DUKENUKEM> oh

17:27 <DUKENUKEM> that worked

17:27 <DUKENUKEM> thanks dude

17:27 <fche> my nukin' pleasure dude

17:27 <DUKENUKEM> hehe

17:27 <fche> check out https://sourceware.org/systemtap/examples/ or the baby search engine built into % stap -i

17:54 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-76-gbee680e / stapbpf/bpfinterp.cxx: default all non-ascii characters to hex sequences in escaping http://tinyurl.com/y5zyhz82

17:54 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-77-ga61d0e5 / bpf-translate.cxx: change valid range of octal sequences to < 256 http://tinyurl.com/y6q6l7fk

20:32 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-80-gd4a33e1 / stapbpf/bpfinterp.cxx: default all non-ascii characters to hex sequences in escaping http://tinyurl.com/yyuemt9s

20:32 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-81-gafd643e / bpf-translate.cxx: change valid range of octal sequences to < 256 http://tinyurl.com/y2zxonu4

20:32 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-82-gd4fe334 / stapbpf/bpfinterp.cxx: removed unused library http://tinyurl.com/y5zfs3ck

20:32 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-83-g697fc1c / stap-exporter/stap-exporter.in: stap-exporter now also searches for stapbpf procfs files http://tinyurl.com/yxh4rx5g

20:32 <irker039> systemtap: sapatel systemtap.git:refs/heads/sapatel/pr23285 * release-4.1-84-g2e9bf15 / tapset/prometheus.stp: set conditional prometheus tapset for stapbpf which removes maxsize http://tinyurl.com/y5ryq3ta

22:21 <irker039> systemtap: fche systemtap.git:refs/heads/master * release-4.1-74-g0c68adc / tapset/linux/nfsd.stp: rhbz1731333: nfsd.proc.write, tolerate awol 'vlen' http://tinyurl.com/y4tfrkrb