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> fche: seems like stap master is totally broken on centos6.
<agentzh> the simplest uprobes script would lead to target process being killed by sigtrap.
<agentzh> tested all the centos6 kernels including the last one.
<agentzh> is there any interest in supporting centos6 at all for stap?
<fche> hmm, we have a rhel6 32-bit and 64-bit x86 buildbot and the results are not particularly bad
<fche> 9376 pass 254 fail
<agentzh> the first few runs for the same target is good.
<agentzh> later script runs against the same target process leads to crashes.
<agentzh> tested in many different x86_64 hardware.
<agentzh> including public cloud VMs.
<agentzh> same thing
<agentzh> our lean test suite is always running fine on centos6
<agentzh> just the fuzzer runs the same script repeatedly against the same target process leading to crashes.
<agentzh> that's how we noted the problem.
<agentzh> creating a PR with a minimal example to demonstrate this.
<fche> ok
<agentzh> fche: https://sourceware.org/bugzilla/show_bug.cgi?id=27260 created the PR for the centos6 uprobes issue.
<agentzh> you can try it out on your side.
<fche> yeah
<fche> note tho
<fche> centos6 is dead
<fche> rhel6 is dead
<fche> so .... somewhat less Intensity in this particular enquiry than others
<agentzh> fche: yeah. but still some of our customers are running it. but anyway, your call. you're the boss :)
<fche> some of our customers are running it too
<fche> hehh
<fche> maybe the same people :)
<agentzh> :)
<agentzh> this looks like something deep.
<agentzh> maybe it's the time for them to upgrade :)
<agentzh> it may not be worth the effort.
<kerneltoast> fche, i'm not too keen on fixing this myself either
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