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[Bug gdb/17247] gdb freezes on multi threaded app (test-case attached)
- From: "dje at google dot com" <sourceware-bugzilla at sourceware dot org>
- To: gdb-prs at sourceware dot org
- Date: Sat, 23 Aug 2014 16:07:24 +0000
- Subject: [Bug gdb/17247] gdb freezes on multi threaded app (test-case attached)
- Auto-submitted: auto-generated
- References: <bug-17247-4717 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=17247
--- Comment #14 from dje at google dot com ---
(In reply to Bernd Amend from comment #13)
> I encountered this issue on Archlinux with gdb 7.8.
> I bisected the issue to the commit
>
> commit ed3ef33944c39d9a3cea72b9a7cef3c20f0e3461
> Author: Doug Evans <xdje42@gmail.com>
> Date: Sun Feb 9 19:40:01 2014 -0800
>
> Add Guile as an extension language.
>
> I hope this helps to track down the issue.
I'm not sure how much help a bisect can be here is the issue is a race
condition.
But you have given me an idea.
Guile uses a separate thread to help with garbage collection, and perhaps a
SIGCHLD is being lost somehow (or whatever).
Question: Does the bug go away if you configure gdb --without-guile?
[Assuming you've got guile installed and the buggy gdb was configured with it.]
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