Date: Sun, 15 Jul 2007 17:43:45 +0200 (MEST) From: Michiel Boland <michiel@boland.org> To: freebsd-current@freebsd.org Subject: Re: sshd broken with UsePrivilegeSeparation=yes on sparc64 Message-ID: <Pine.GSO.4.64.0707151732540.129@neerbosch.nijmegen.internl.net> In-Reply-To: <Pine.GSO.4.64.0707102349300.24847@neerbosch.nijmegen.internl.net> References: <Pine.GSO.4.64.0707102349300.24847@neerbosch.nijmegen.internl.net>
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It looks like gcc mis-compiles /usr/src/crypto/openssh/monitor_fdpass.c on
sparc64. For some reason it optimizes away the assignment of fd on line
132:
fd = (*(int *)CMSG_DATA(cmsg));
So I guess that every call to mm_receive_fd will return an undefined
value.
If I add -O0 to CFLAGS in /usr/src/secure/lib/libssh/Makefile, ssh with
UsePrivilegeSeparation=yes works again.
So, obviously a gcc bug. I will try to generate a smaller test-case for
this.
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