From owner-freebsd-emulation@FreeBSD.ORG Sun Feb 22 18:20:05 2009 Return-Path: Delivered-To: freebsd-emulation@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 0EE5B1065673 for ; Sun, 22 Feb 2009 18:20:05 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id E67128FC1C for ; Sun, 22 Feb 2009 18:20:04 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id n1MIK4De046904 for ; Sun, 22 Feb 2009 18:20:04 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id n1MIK4Fm046903; Sun, 22 Feb 2009 18:20:04 GMT (envelope-from gnats) Date: Sun, 22 Feb 2009 18:20:04 GMT Message-Id: <200902221820.n1MIK4Fm046903@freefall.freebsd.org> To: freebsd-emulation@FreeBSD.org From: Takahiro Kurosawa Cc: Subject: Re: kern/131506: pipes in forked procs sometimes hang under Linux emulation 2.6.16 X-BeenThere: freebsd-emulation@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Takahiro Kurosawa List-Id: Development of Emulators of other operating systems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 22 Feb 2009 18:20:05 -0000 The following reply was made to PR kern/131506; it has been noted by GNATS. From: Takahiro Kurosawa To: "Arno J. Klaassen" Cc: freebsd-bugs@freebsd.org Subject: Re: kern/131506: pipes in forked procs sometimes hang under Linux emulation 2.6.16 Date: Wed, 18 Feb 2009 00:19:56 +0900 --0015175cddd8fa5fb404631ed549 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit It seems that vfork/exec synchronization was changed recently but the linux emulation code keeps using the obsolete mechanism. The attached patch may fix the problem. --0015175cddd8fa5fb404631ed549 Content-Type: text/x-diff; charset=US-ASCII; name="pwaitfix.diff" Content-Disposition: attachment; filename="pwaitfix.diff" Content-Transfer-Encoding: base64 X-Attachment-Id: f_frapwkae0 PT09IHN5cy9hbWQ2NC9saW51eDMyL2xpbnV4MzJfbWFjaGRlcC5jCj09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gc3lz L2FtZDY0L2xpbnV4MzIvbGludXgzMl9tYWNoZGVwLmMJKHJldmlzaW9uIDE4ODc0MSkKKysrIHN5 cy9hbWQ2NC9saW51eDMyL2xpbnV4MzJfbWFjaGRlcC5jCShsb2NhbCkKQEAgLTU2MCw3ICs1NjAs NyBAQAogCS8qIHdhaXQgZm9yIHRoZSBjaGlsZHJlbiB0byBleGl0LCBpZS4gZW11bGF0ZSB2Zm9y ayAqLwogCVBST0NfTE9DSyhwMik7CiAJd2hpbGUgKHAyLT5wX2ZsYWcgJiBQX1BQV0FJVCkKLQkg ICAJbXNsZWVwKHRkLT50ZF9wcm9jLCAmcDItPnBfbXR4LCBQV0FJVCwgInBwd2FpdCIsIDApOwor CQljdl93YWl0KCZwMi0+cF9wd2FpdCwgJnAyLT5wX210eCk7CiAJUFJPQ19VTkxPQ0socDIpOwog CiAJcmV0dXJuICgwKTsKQEAgLTc0OSw3ICs3NDksNyBAQAogCQkvKiB3YWl0IGZvciB0aGUgY2hp bGRyZW4gdG8gZXhpdCwgaWUuIGVtdWxhdGUgdmZvcmsgKi8KIAkJUFJPQ19MT0NLKHAyKTsKIAkJ d2hpbGUgKHAyLT5wX2ZsYWcgJiBQX1BQV0FJVCkKLQkJCW1zbGVlcCh0ZC0+dGRfcHJvYywgJnAy LT5wX210eCwgUFdBSVQsICJwcHdhaXQiLCAwKTsKKwkJCWN2X3dhaXQoJnAyLT5wX3B3YWl0LCAm cDItPnBfbXR4KTsKIAkJUFJPQ19VTkxPQ0socDIpOwogCX0KIAo9PT0gc3lzL2kzODYvbGludXgv bGludXhfbWFjaGRlcC5jCj09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PQotLS0gc3lzL2kzODYvbGludXgvbGludXhfbWFjaGRl cC5jCShyZXZpc2lvbiAxODg3NDEpCisrKyBzeXMvaTM4Ni9saW51eC9saW51eF9tYWNoZGVwLmMJ KGxvY2FsKQpAQCAtMzc2LDcgKzM3Niw3IEBACiAJLyogd2FpdCBmb3IgdGhlIGNoaWxkcmVuIHRv IGV4aXQsIGllLiBlbXVsYXRlIHZmb3JrICovCiAJUFJPQ19MT0NLKHAyKTsKIAl3aGlsZSAocDIt PnBfZmxhZyAmIFBfUFBXQUlUKQotCSAgIAltc2xlZXAodGQtPnRkX3Byb2MsICZwMi0+cF9tdHgs IFBXQUlULCAicHB3YWl0IiwgMCk7CisJCWN2X3dhaXQoJnAyLT5wX3B3YWl0LCAmcDItPnBfbXR4 KTsKIAlQUk9DX1VOTE9DSyhwMik7CiAKIAlyZXR1cm4gKDApOwpAQCAtNTgxLDcgKzU4MSw3IEBA CiAgICAJICAgCS8qIHdhaXQgZm9yIHRoZSBjaGlsZHJlbiB0byBleGl0LCBpZS4gZW11bGF0ZSB2 Zm9yayAqLwogICAgCSAgIAlQUk9DX0xPQ0socDIpOwogCQl3aGlsZSAocDItPnBfZmxhZyAmIFBf UFBXQUlUKQotICAgCQkgICAJbXNsZWVwKHRkLT50ZF9wcm9jLCAmcDItPnBfbXR4LCBQV0FJVCwg InBwd2FpdCIsIDApOworCQkJY3Zfd2FpdCgmcDItPnBfcHdhaXQsICZwMi0+cF9tdHgpOwogCQlQ Uk9DX1VOTE9DSyhwMik7CiAJfQogCg== --0015175cddd8fa5fb404631ed549 Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ freebsd-bugs@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-bugs To unsubscribe, send any mail to "freebsd-bugs-unsubscribe@freebsd.org" --0015175cddd8fa5fb404631ed549--