Date: Wed, 18 Feb 2009 15:34:48 +0200 From: Kostik Belousov <kostikbel@gmail.com> To: Takahiro Kurosawa <takahiro.kurosawa@gmail.com> Cc: freebsd-emulation@freebsd.org Subject: Re: kern/131506: pipes in forked procs sometimes hang under Linux emulation 2.6.16 Message-ID: <20090218133448.GP41617@deviant.kiev.zoral.com.ua> In-Reply-To: <200902181320.n1IDK2Zh024098@freefall.freebsd.org> References: <200902181320.n1IDK2Zh024098@freefall.freebsd.org>
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[-- Attachment #1 --] On Wed, Feb 18, 2009 at 01:20:02PM +0000, Takahiro Kurosawa wrote: > The following reply was made to PR kern/131506; it has been noted by GNATS. > > From: Takahiro Kurosawa <takahiro.kurosawa@gmail.com> > To: bug-followup@freebsd.org, arno@heho.snv.jussieu.fr > Cc: > Subject: Re: kern/131506: pipes in forked procs sometimes hang under Linux > emulation 2.6.16 > Date: Wed, 18 Feb 2009 21:44:13 +0900 > > --000e0cd156a4ef843b046330c6a5 > Content-Type: text/plain; charset=ISO-8859-1 > Content-Transfer-Encoding: 7bit > > (resending to bug-followup@, sorry if duplicate) > > 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. > > --000e0cd156a4ef843b046330c6a5 > 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== > --000e0cd156a4ef843b046330c6a5-- Please, resend the patch without base64-encoding, best as a plain/text attachment. [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iEUEARECAAYFAkmcDncACgkQC3+MBN1Mb4hARwCfVy1JIV6q9cUf5yLuRV7OlxNO QnUAl1EbA6qLRpM4k7vDRgJwKqJFJDA= =LBik -----END PGP SIGNATURE-----help
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