From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gdb-return-39819-listarch-gdb=sources.redhat.com@sourceware.org>
Received: (qmail 31636 invoked by alias); 21 Sep 2011 18:45:22 -0000
Received: (qmail 31627 invoked by uid 22791); 21 Sep 2011 18:45:20 -0000
X-SWARE-Spam-Status: No, hits=-1.5 required=5.0	tests=AWL,BAYES_00,RP_MATCHES_RCVD
X-Spam-Check-By: sourceware.org
Received: from phx-mxvgateway.goodrich.com (HELO phx-mxv1gateway.goodrich.com) (63.241.174.110)    by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Wed, 21 Sep 2011 18:45:07 +0000
Received: from GR-GWI-WEST-A.goodrich.com (gr-gwi-west-a.goodrich.com [170.126.245.4])	by phx-mxv1gateway.goodrich.com (Symantec Messaging Gateway) with SMTP id D0.96.25480.2B03A7E4; Wed, 21 Sep 2011 14:45:06 -0400 (EDT)
Received: from nhc0ex21.goodrich.root.local ([170.126.245.60])	by GR-GWI-WEST-A.goodrich.com (8.13.5/8.13.5) with ESMTP id p8LIj2n7019231;	Wed, 21 Sep 2011 14:45:03 -0400 (EDT)
Received: from nhc0ex17.goodrich.root.local ([170.126.246.106]) by nhc0ex21.goodrich.root.local with Microsoft SMTPSVC(6.0.3790.4675);	 Wed, 21 Sep 2011 11:45:01 -0700
Content-class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: text/plain;	charset="us-ascii"
Content-Transfer-Encoding: quoted-printable
Subject: RE: fail to attach to process on Solaris
Date: Wed, 21 Sep 2011 18:45:00 -0000
Message-ID: <F69D5B35CAB1F043B9EE359EDA4318DC0CF2472D@nhc0ex17.goodrich.root.local>
In-Reply-To: <201109211839.28701.pedro@codesourcery.com>
References: <F69D5B35CAB1F043B9EE359EDA4318DC0BE3DD4E@nhc0ex17.goodrich.root.local> <201109211746.23961.pedro@codesourcery.com> <F69D5B35CAB1F043B9EE359EDA4318DC0CF24412@nhc0ex17.goodrich.root.local> <201109211839.28701.pedro@codesourcery.com>
From: "Burkhardt, Glenn" <Glenn.Burkhardt@goodrich.com>
To: "Pedro Alves" <pedro@codesourcery.com>
Cc: <gdb@sourceware.org>
Mailing-List: contact gdb-help@sourceware.org; run by ezmlm
Precedence: bulk
List-Id: <gdb.sourceware.org>
List-Subscribe: <mailto:gdb-subscribe@sourceware.org>
List-Archive: <http://sourceware.org/ml/gdb/>
List-Post: <mailto:gdb@sourceware.org>
List-Help: <mailto:gdb-help@sourceware.org>, <http://sourceware.org/ml/#faqs>
Sender: gdb-owner@sourceware.org
X-SW-Source: 2011-09/txt/msg00089.txt.bz2

> -----Original Message-----
> From: Pedro Alves [mailto:pedro@codesourcery.com]=20
> Sent: Wednesday, September 21, 2011 1:39 PM
> To: Burkhardt, Glenn
> Cc: gdb@sourceware.org
> Subject: Re: fail to attach to process on Solaris
>=20
>=20
> Okay, the linux code ignores zombie threads, like in the=20
> patch below.  Does that help?  There's a couple more places=20
> where it ignores zombie threads, that we may need to bring=20
> over as well.
> Look for TD_THR_ZOMBIE in linux-thread-db.c.
>=20
> --
> Pedro Alves
>=20
> ---
>  gdb/sol-thread.c |    3 +++
>  1 file changed, 3 insertions(+)
>=20
> Index: src/gdb/sol-thread.c
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> --- src.orig/gdb/sol-thread.c	2011-03-01 16:00:06.000000000 +0000
> +++ src/gdb/sol-thread.c	2011-09-21 18:34:30.029928904 +0100
> @@ -1177,6 +1177,9 @@ sol_find_new_threads_callback (const td_
>    if (retval !=3D TD_OK)
>      return -1;
>=20=20
> +  if (ti.ti_state =3D=3D TD_THR_UNKNOWN || ti.ti_state =3D=3D TD_THR_ZOM=
BIE)
> +    return 0;			/* A zombie -- ignore.  */
> +
>    ptid =3D BUILD_THREAD (ti.ti_tid, PIDGET (inferior_ptid));
>    if (!in_thread_list (ptid) || is_exited (ptid))
>      add_thread (ptid);
>=20

The patch makes a big difference.  At least, I can continue the attached
process now.  I'll play with it a bit more, and report back.  I'll also
check for other places where
TD_THR_ZOMBIE in linux-thread-db.c is used.