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List: qemu-devel
Subject: [Qemu-devel] [Bug 1591611] Re: chroot using qemu-x86_64-static fails on ppc64el
From: Timothy Pearson <kb9vqf () pearsoncomputing ! net>
Date: 2017-11-28 1:28:09
Message-ID: 151183248958.10567.17562409165978766488.malone () wampee ! canonical ! com
[Download RAW message or body]
Nope, looks good here. As a note to other commenters, this won't work
unless you are using a kernel compiled with the 4k page size -- default
for PPC64 is 64k.
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https://bugs.launchpad.net/bugs/1591611
Title:
chroot using qemu-x86_64-static fails on ppc64el
Status in QEMU:
Fix Committed
Bug description:
When attempting to use qemu-x86_64-static from qemu 2.5.0 on a ppc64el
host to chroot into an amd64 environment, all commands fail with an
assertion error. /usr/bin/qemu-x86_64-static from the host was copied
into the chroot /usr/bin, and the host has multiformat support in the
kernel.
Sample output illustrating the problem, as well as bash builtins
working:
# chroot /virtualbox/scratchdisks_local_001/amd64_chroot qemu-x86_64-static \
/bin/bash # ls
bash: ../sysdeps/nptl/fork.c:136: __libc_fork: Assertion `({ __typeof (self->tid) \
__value; if (sizeof (__value) == 1) asm volatile ("movb %%fs:%P2,%b0" : "=q" \
(__value) : "0" (0), "i" (__builtin_offsetof (struct pthread, tid))); else if (sizeof \
(__value) == 4) asm volatile ("movl %%fs:%P1,%0" : "=r" (__value) : "i" \
(__builtin_offsetof (struct pthread, tid))); else { if (sizeof (__value) != 8) abort \
(); asm volatile ("movq %%fs:%P1,%q0" : "=r" (__value) : "i" (__builtin_offsetof \
(struct pthread, tid))); } __value; }) != ppid' failed. setup_frame: not implemented
setup_frame: not implemented
qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Segmentation fault
setup_frame: not implemented
setup_frame: not implemented
# echo TEST
TEST
# cat test
bash: ../sysdeps/nptl/fork.c:136: __libc_fork: Assertion `({ __typeof (self->tid) \
__value; if (sizeof (__value) == 1) asm volatile ("movb %%fs:%P2,%b0" : "=q" \
(__value) : "0" (0), "i" (__builtin_offsetof (struct pthread, tid))); else if (sizeof \
(__value) == 4) asm volatile ("movl %%fs:%P1,%0" : "=r" (__value) : "i" \
(__builtin_offsetof (struct pthread, tid))); else { if (sizeof (__value) != 8) abort \
(); asm volatile ("movq %%fs:%P1,%q0" : "=r" (__value) : "i" (__builtin_offsetof \
(struct pthread, tid))); } __value; }) != ppid' failed. qemu: uncaught target signal \
11 (Segmentation fault) - core dumped Segmentation fault
It is currently unknown if other host architectures (e.g. aarch64) are
also affected.
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