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: glad to know the stack memory thing was not just me :)
<agentzh> yeah i was aware of bpf_tail_call() but it is indeed quite limited.
<agentzh> i did not know about bpf_iter.
<agentzh> thanks for the pointer.
<agentzh> and i found another interesting thing related to bpf_iter, which is task_vma.
<agentzh> serhei: seems like there's very little docs regarding bpf_iter in google. do you happen to know some links? thanks!
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<serhei> Not sure. For any bpf functionality I hope for docs but don't expect them
<serhei> bpf really really needs a NEWS file :-/
<fche> git log?
<serhei> that or lkml discussions, in essence
<serhei> The point of a NEWS file is to pull 'changes users would be interested in' out of the mass of churn such as 'drop imprecise log message' and 'explicitly zero-extend R0 after 32-bit cmpxchg'
<fche> kernelnewbies.org might [want to] have a column on that
<serhei> bpf in particular, or the black art of how to follow lkml without information overload in general? :)
<fche> the former
<fche> they already do the latter
<serhei> along these lines https://kernelnewbies.org/LinuxChanges#Linux_5.11.Tracing.2C_perf_and_BPF I suppose
<fche> exactly
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<kerneltoast> fche, the typequery modules are just compiled from totally empty .c files right?
<fche> yes
<fche> I think so
<kerneltoast> (excluding the GPL module license line)
<fche> relying on gcc -include FOO.h which is basically #include <FOO.h>
<kerneltoast> ah
<kerneltoast> thanx
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