[Bug dyninst/24884] stapdyn crashes with a segmentation fault

fche at redhat dot com sourceware-bugzilla@sourceware.org
Fri Aug 23 22:21:00 GMT 2019


https://sourceware.org/bugzilla/show_bug.cgi?id=24884

Frank Ch. Eigler <fche at redhat dot com> changed:

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                 CC|                            |fche at redhat dot com

--- Comment #1 from Frank Ch. Eigler <fche at redhat dot com> ---
Hi, Avi, sorry for not noticing this earlier.  Some questions to assist in the
local reproduction of this problem:

- arch: x86-64?

- same script works in lkm (non-dyninst) mode?

- tried   stap -p4 --dyninst FOO.stp  ;   gdb -args stapbpf FOO.so   
  so as to get a gdb backtrace at the crash site?

- what level of traffic is the httpd process absorbing during this time?
  (thus: how much thread / child-process changes?)

- tried targeting a program other than this httpd?

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