From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Reese Faucette" Date: Wed, 06 Nov 2002 00:39:27 +0000 Subject: [Linux-ia64] IA64 strncpy in 2.2.4-30 - bug and patch MIME-Version: 1 Content-Type: multipart/mixed; boundary="----=_NextPart_000_003A_01C284E9.E84CD130" Message-Id: List-Id: To: linux-ia64@vger.kernel.org This is a multi-part message in MIME format. ------=_NextPart_000_003A_01C284E9.E84CD130 Content-Type: multipart/alternative; boundary="----=_NextPart_001_003B_01C284E9.E84CD130" ------=_NextPart_001_003B_01C284E9.E84CD130 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi, I opened a bug with RedHat about a problem with strncpy() in = glibc-2.2.4-30 on IA64, see = https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=3D76952, but I've = been told you folks are really the ones to talk to. The bug report contains a testcase illustrating the problem, and also a = patch. In short, the recovery code is busted, even after the patch from = David Mosberger. Attached is a copy of the patch from the bug report. I have a testcase which exercizes both the recovery3 and recovery4 paths = if you're interested. =20 Regards, -reese faucette ------=_NextPart_001_003B_01C284E9.E84CD130 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Hi,

I opened a bug with RedHat about a = problem with=20 strncpy() in glibc-2.2.4-30 on IA64, see htt= ps://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=3D76952,=20 but I've been told you folks are really the ones to talk = to.

The bug report contains a testcase = illustrating the=20 problem, and also a patch. In short, the recovery code is busted, = even=20 after the patch from David Mosberger. Attached is a copy of the = patch from=20 the bug report.

I have a testcase which exercizes both = the=20 recovery3 and recovery4 paths if you're interested.

Regards,

-reese faucette

------=_NextPart_001_003B_01C284E9.E84CD130-- ------=_NextPart_000_003A_01C284E9.E84CD130 Content-Type: application/octet-stream; name="strncpy.patch" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="strncpy.patch" --- strncpy.S Thu Oct 31 15:19:46 2002=0A= +++ new/strncpy.S Thu Oct 31 17:11:34 2002=0A= @@ -214,11 +214,11 @@=0A= ld8 r[0] =3D [tmp]=0A= br.cond.sptk .back2=0A= .recovery3:=0A= - add tmp =3D -MEMLAT * 8, src ;;=0A= + add tmp =3D -(MEMLAT+1) * 8, src ;;=0A= ld8 r[MEMLAT] =3D [tmp]=0A= br.cond.sptk .back3=0A= .recovery4:=0A= - add tmp =3D -(MEMLAT - 1) * 8, src ;;=0A= + add tmp =3D -(MEMLAT) * 8, src ;;=0A= ld8 r[MEMLAT - 1] =3D [tmp]=0A= br.cond.sptk .back4=0A= END(strncpy)=0A= ------=_NextPart_000_003A_01C284E9.E84CD130--