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[Bug kprobes/23260] SystemTap usage appears to adversely affect GDB breakpoint functionality
- From: "fche at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: systemtap at sourceware dot org
- Date: Wed, 25 Jul 2018 15:20:33 +0000
- Subject: [Bug kprobes/23260] SystemTap usage appears to adversely affect GDB breakpoint functionality
- Auto-submitted: auto-generated
- References: <bug-23260-6586@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=23260
Frank Ch. Eigler <fche at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-07-25
CC| |dsmith at redhat dot com
Ever confirmed|0 |1
--- Comment #5 from Frank Ch. Eigler <fche at redhat dot com> ---
Was able to reproduce a close variant of this here on fedora27 x86-64 (stap
3.3, kernel 4.16.13). What may be going on here is that when systemtap runs
with a designated target process, it may stop & resume it briefly, to make sure
it can emplace any relevant uprobes and properly enumerate all its threads. It
could be that this logic fails to interoperate properly with a process already
stuck in a ptrace stop (T state).
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