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From: "palves at redhat dot com" <sourceware-bugzilla@sourceware.org>
To: gdb-prs@sourceware.org
Subject: [Bug gdb/18749] New: problems if whole process dies while (ptrace-)
 stopped
Date: Fri, 31 Jul 2015 11:18:00 -0000
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X-Bugzilla-Type: new
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X-Bugzilla-Product: gdb
X-Bugzilla-Component: gdb
X-Bugzilla-Version: HEAD
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X-Bugzilla-Who: palves at redhat dot com
X-Bugzilla-Status: NEW
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https://sourceware.org/bugzilla/show_bug.cgi?id=18749

            Bug ID: 18749
           Summary: problems if whole process dies while (ptrace-) stopped
           Product: gdb
           Version: HEAD
            Status: NEW
          Severity: normal
          Priority: P2
         Component: gdb
          Assignee: unassigned at sourceware dot org
          Reporter: palves at redhat dot com
  Target Milestone: ---

Between fetching a thread stop event (on Linux, after waitpid returns a stop)
and fully handling the event (e.g., all the way evaluating a breakpoint
condition and reresuming if it evals false), some other thread that is still
running may cause the whole process to exit.  Usually in such a situation, the
lower level code that tries to access memory or registers throws an error
(usually a perror_with_name/ESRCH), and many code paths in GDB don't expect
this, resulting in a broken debug session.

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