fche changed the topic of #systemtap to: http://sourceware.org/systemtap; email systemtap@sourceware.org if answers here not timely, conversations may be logged
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<agentzh> serhei: we now run into this issue in the bpf runtime: https://sourceware.org/bugzilla/show_bug.cgi?id=27818
<agentzh> serhei: and this one too: https://sourceware.org/bugzilla/show_bug.cgi?id=27819
<agentzh> serhei: and also this one: https://sourceware.org/bugzilla/show_bug.cgi?id=27820
<agentzh> stap --bpf is definitely much better than the last time i tried. thanks a lot for your hard work on this runtime!
<agentzh> i could go much further than the last time.
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<fche> agentzh, individual bpf tapset functions are implemented via bpf pseudo-assembly code
<fche> feel free to try your hand implementing pgrp e.g.
<fche> strings are a problem because bpf has no loops, so we have to unroll all that sort of processing, ewww
<fche> thus the short length limits
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<serhei> agentzh, thanks for checking. I'll have a look to figure out how I should do each one
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<irker573> systemtap: fche systemtap.git:master * release-4.4-146-g02b6be05f / systemtap.spec: systemtap.spec: don't *require jpackage-utils
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<agentzh> fche: thanks for the tips!
<agentzh> serhei: great. thanks a lot!
<fche> agentzh, note that we're doing prerelease testing this week, so hardly any time left for development like that now
<agentzh> understood. new release coming? wow.
<agentzh> time to sync again :D
<agentzh> (after the release)
<agentzh> cc kerneltoast
<agentzh> btw, we're also testing a recent master atm in our kernel fuzzy.
<agentzh> *fuzzer
<agentzh> and kerneltoast is hacking on the hardware watchpoint support in stap.
<agentzh> hopefully he can propose the first patch in the next few days.
<agentzh> will it catch the next release?
<fche> 50/50
<agentzh> okay
<fche> drafting release notes as we speak
<agentzh> it'll be the largest patch created by kerneltoast.
<fche> 20/80
<agentzh> lol
<agentzh> and he's been complaining about the difficulties.
<agentzh> 0/100 now?
<fche> -10
<agentzh> :D
<kerneltoast> -20
<kerneltoast> it won't be my largest patch
<fche> -19
<kerneltoast> it'll be my least confident patch
<kerneltoast> fche, when is release day
<fche> "next few days"
<fche> depending on what comes up
<kerneltoast> is that a Friday i hear
<fche> not a good time to propose anything large.
<kerneltoast> it's not large, it's big
<kerneltoast> well I'm plugging it into the existing kernel hw breakpoints
<kerneltoast> instead of doing the ol' ctrl c+v
<fche> sure, if there is much commonality
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<irker573> systemtap: wcohen systemtap.git:master * release-4.4-147-gfa883bf3a / testsuite/systemtap.examples/io/deviceseeks.stp: Further tweak deviceseeks.stp example to work on Fedora 32/33/34