01:09 <kingwah> join #perl

01:30 <kingwah> n

21:27 <agentzh> fche2: i wonder if we can do somthing similar to process_vm_readv() in stap probe contexts which allow sleeping, like probe begin/end/process.begin/process.function("...")?

21:28 <agentzh> in case there is a bogus read fault?

21:28 <agentzh> will that work?

21:28 <agentzh> it seems probe begin/end/process.begin are all in syscall contexts, which should be fine for sleeping and locking?

21:28 <agentzh> and uprobes are int3 from userland, it should also be fine?

21:29 <agentzh> timer.profile is interrupt context, which won't work.

21:30 <agentzh> the xeon minor page fault issue seems to be quite ubiquitous in xeon machines.

21:46 <agentzh> oh, and process.end is in syscall context too.

21:54 <fche2> uprobe context is unfortunately more like interrupt context

21:55 <agentzh> ah, okay, thanks for the info!

21:56 <agentzh> i thought it is more like syscall's traps.