Date: Fri, 13 Jul 2012 07:25:11 GMT From: Richard Yao <ryao@gentoo.org> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/169814: ptrace is broken in Linux emulation Message-ID: <201207130725.q6D7PBXp047385@red.freebsd.org> Resent-Message-ID: <201207130730.q6D7U3a8032945@freefall.freebsd.org>
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>Number: 169814 >Category: kern >Synopsis: ptrace is broken in Linux emulation >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Jul 13 07:30:02 UTC 2012 >Closed-Date: >Last-Modified: >Originator: Richard Yao >Release: FreeBSD 9.0-RELEASE >Organization: Gentoo >Environment: Linux linux 2.6.16 FreeBSD Gentoo 9.0-r3 #0: Sun May 27 20:29:34 EDT 2012 i686 AMD Phenom(tm) II X6 1090T Processor AuthenticAMD GNU/Linux >Description: ptrace is broken, which causes sys-libs/glibc to fail to build in a Gentoo Linux jail under Linux emulation: http://bpaste.net/show/34782/ This issue can also be demonstrated using strace: # strace echo Hello World strace: test_ptrace_setoptions_for_all: PTRACE_TRACEME doesn't work: Function not implemented strace: test_ptrace_setoptions_for_all: unexpected exit status 1 >How-To-Repeat: mkdir /mnt/linux wget ftp://gentoo.osuosl.org/pub/gentoo/releases/amd64/current-stage3/*.tar.bz2 -O - | tar -x -C /mnt/linux cp /etc/resolv.conf /mnt/linux/etc/resolv.conf mount -t linprocfs none /mnt/linux/proc mount -t linsysfs none /mnt/linux/sys mount -t devfs none /mnt/linux/dev mount -t fdescfs none /mnt/linux/dev/fd chroot /mnt/linux /bin/bash env-update source /etc/profile export PS1="(chroot) $PS1" cd emerge-webrsync ln -sf /bin/busybox /bin/tar ln -sf /bin/busybox /bin/rm ln -sf /bin/busybox /usr/bin/touch # And finally: emerge strace strace echo Hello World # Alternatively, rebuild glibc: emerge --oneshot sys-libs/glibc >Fix: There is no known fix or workaround. >Release-Note: >Audit-Trail: >Unformatted:
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