Date: Tue, 7 Nov 2000 12:45:32 +0200 From: Peter Pentchev <roam@orbitel.bg> To: Bruce Evans <bde@zeta.org.au> Cc: Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, David Malone <dwmalone@maths.tcd.ie>, will@FreeBSD.ORG, bugs@FreeBSD.ORG, gnats-submit@FreeBSD.ORG Subject: Re: bin/19978: /usr/bin/make segfaults w/o Makefile for root (over NFS) Message-ID: <20001107124532.E314@ringworld.oblivion.bg> In-Reply-To: <Pine.BSF.4.21.0011072125130.2869-100000@besplex.bde.org>; from bde@zeta.org.au on Tue, Nov 07, 2000 at 09:29:39PM %2B1100 References: <Pine.BSF.4.30.0011052331360.15575-100000@deneb.dbai.tuwien.ac.at> <Pine.BSF.4.21.0011072125130.2869-100000@besplex.bde.org>
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Could the attached patch do something about it? It's against RELENG_4 (rev 1.10 of dir.c). G'luck, Peter -- When you are not looking at it, this sentence is in Spanish. On Tue, Nov 07, 2000 at 09:29:39PM +1100, Bruce Evans wrote: > On Sun, 5 Nov 2000, Gerald Pfeifer wrote: > > > On Sun, 5 Nov 2000, David Malone wrote: > > > I've reopened the PR. > > > > Thanks! > > > > > Can you either get a back trace of the core from make using gdb or > > > ktrace it, so we can see what it was doing when it died? > > > 15545 make CALL stat(0x805b887,0xbfbfeb64) > > 15545 make NAMI "." > > 15545 make RET stat 0 > > 15545 make CALL open(0x805b887,0x4,0x280f8190) > > 15545 make NAMI "." > > 15545 make RET open -1 errno 13 Permission denied > > 15545 make PSIG SIGSEGV SIG_DFL > > 15545 make NAMI "/tmp/make.core" > > This output made it easy to reproduce the bug in a simpler way: > > $ cd /tmp > $ mkdir z > $ cd z > $ chmod 0 /tmp/z > $ make > Segmentation fault diff -urN src/usr.bin/make/dir.c mysrc/usr.bin/make/dir.c --- src/usr.bin/make/dir.c Sat Sep 11 16:08:01 1999 +++ mysrc/usr.bin/make/dir.c Tue Nov 7 12:42:20 2000 @@ -225,6 +225,8 @@ */ Dir_AddDir (openDirectories, "."); dot = (Path *) Lst_DeQueue (openDirectories); + if (dot == (Path *) NIL) + err(1, "cannot open current directory"); /* * We always need to have dot around, so we increment its reference count To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message
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