From: "barrdetwix at gmail dot com" <sourceware-bugzilla@sourceware.org>
To: systemtap@sourceware.org
Subject: [Bug runtime/16836] CFI expression underflow occurs during unwinding on some kernels
Date: Tue, 06 Oct 2020 01:42:48 +0000 [thread overview]
Message-ID: <bug-16836-6586-O3ZC0eVaWk@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-16836-6586@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=16836
--- Comment #4 from barrdetwix at gmail dot com ---
Here's 200kB of log with -DDEBUG_UNWIND=2 leading up to the "DWARF expression
stack underflow in CFI": https://paste.mozilla.org/VewSs2i7#L8,258,3146
(Note that there's a couple non-stap lines in the long becase I'm not running
stap directly, my reproducer is a small tool that starts a target process
suspended, generates a stap script for that process, and captures stap output.
And so far the CFI underflow problem reproduces perfectly only when I run my
tool under itself.)
Happy to upload vmlinux or some other binary if that would help any.
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next prev parent reply other threads:[~2020-10-06 1:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-04-11 21:48 [Bug runtime/16836] New: " lberk at redhat dot com
2014-04-11 21:48 ` [Bug runtime/16836] " lberk at redhat dot com
2014-04-14 15:54 ` tromey at redhat dot com
2014-04-14 20:09 ` lberk at redhat dot com
2017-10-11 10:44 ` mark at klomp dot org
2017-10-11 10:48 ` mjw at fedoraproject dot org
2020-10-05 23:15 ` barrdetwix at gmail dot com
2020-10-06 0:18 ` fche at redhat dot com
2020-10-06 1:42 ` barrdetwix at gmail dot com [this message]
2020-10-06 12:04 ` mark at klomp dot org
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