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* [Bug tui/13422] New: Segmentation fault due to lack of tui setup
@ 2011-11-21 19:25 sphink at gmail dot com
2015-07-02 14:21 ` [Bug tui/13422] " palves at redhat dot com
2015-07-08 23:44 ` sphink at gmail dot com
0 siblings, 2 replies; 3+ messages in thread
From: sphink at gmail dot com @ 2011-11-21 19:25 UTC (permalink / raw)
To: gdb-prs
http://sourceware.org/bugzilla/show_bug.cgi?id=13422
Bug #: 13422
Summary: Segmentation fault due to lack of tui setup
Product: gdb
Version: unknown
Status: NEW
Severity: normal
Priority: P2
Component: tui
AssignedTo: unassigned@sourceware.org
ReportedBy: sphink@gmail.com
Classification: Unclassified
I have a script that starts up gdb inside of emacs from the command line, and
it began seg faulting on startup after updating gdb.
I can't remember how I managed to catch this in the debugger (it involved a
weird timing hack), but I can reproduce this with just the command line
emacs --eval '(gdb "/home/sfink/src/archer/gdb/gdb --annotate=3
/usr/bin/flac")'
where /usr/bin/flac can be any binary for which debug info is available.
Switching to a binary with no debug info will eliminate the crash, as will
removing the --annotate=3. The crash is a NULL pointer dereference on some tui
data structure.
Reverting commit edde6978a5c3ee8a2eeafa99a13a6ecb95bf1aff fixes the problem for
me.
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* [Bug tui/13422] Segmentation fault due to lack of tui setup
2011-11-21 19:25 [Bug tui/13422] New: Segmentation fault due to lack of tui setup sphink at gmail dot com
@ 2015-07-02 14:21 ` palves at redhat dot com
2015-07-08 23:44 ` sphink at gmail dot com
1 sibling, 0 replies; 3+ messages in thread
From: palves at redhat dot com @ 2015-07-02 14:21 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=13422
Pedro Alves <palves at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
CC| |palves at redhat dot com
--- Comment #1 from Pedro Alves <palves at redhat dot com> ---
Can you still reproduce this with current master? emacs nowadays wants MI
mode, so I don't know how to reproduce this.
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* [Bug tui/13422] Segmentation fault due to lack of tui setup
2011-11-21 19:25 [Bug tui/13422] New: Segmentation fault due to lack of tui setup sphink at gmail dot com
2015-07-02 14:21 ` [Bug tui/13422] " palves at redhat dot com
@ 2015-07-08 23:44 ` sphink at gmail dot com
1 sibling, 0 replies; 3+ messages in thread
From: sphink at gmail dot com @ 2015-07-08 23:44 UTC (permalink / raw)
To: gdb-prs
https://sourceware.org/bugzilla/show_bug.cgi?id=13422
Steve Fink <sphink at gmail dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution|--- |FIXED
--- Comment #2 from Steve Fink <sphink at gmail dot com> ---
I cannot reproduce with gdb 7.7.1-21.fc20, emacs 24.3.1, with:
emacs --eval '(gud-gdb "/usr/bin/gdb --annotate=3 /usr/bin/flac")'
(gud-gdb even in current emacs will not use MI mode, which is good for me and
others because MI mode is still flaky, at least with the versions of things I
use.)
Nor can I reproduce it with /home/sfink/src/archer/gdb/gdb, though I have no
idea whether that's still the same version as when I filed this bug. Its
timestamp is from 2012, so probably not. (Why didn't I record the rev that I
had the problem in? Because I'm an idiot.)
That version of gdb *does* spit out "Dwarf Error: Cannot handle
DW_FORM_<unknown> in DWARF reader [in module
/usr/lib/debug/usr/bin/flac.debug]", fwiw.
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2011-11-21 19:25 [Bug tui/13422] New: Segmentation fault due to lack of tui setup sphink at gmail dot com
2015-07-02 14:21 ` [Bug tui/13422] " palves at redhat dot com
2015-07-08 23:44 ` sphink at gmail dot com
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