qemu-x86_64 fails on A72 cores, but runs nice on A53 ones :)
#1
I have tried to emulate a chroot for x86_64 architecture and it gave me inconsistent results, random successes and fails:
Code:
jinks /disco2/chroot/amd64 # chroot . /bin/bash
qemu: uncaught target signal 11 (Segmentation fault) - core dumped
root@jinks / # exit
exit
jinks /disco2/chroot/amd64 # chroot . /bin/bash
Instrucción ilegal
jinks /disco2/chroot/amd64 # chroot . /bin/bash
qemu: uncaught target signal 11 (Segmentation fault) - core dumped
Violación de segmento
jinks /disco2/chroot/amd64 # chroot . /bin/bash
root@jinks / # ls
Instrucción ilegal
jinks /disco2/chroot/amd64 # bin   dev  home  lib32     media  opt   root  sbin  tmp  var
boot  etc  lib   lib64  mnt    proc  run   sys   usr

jinks /disco2/chroot/amd64 #

Finally I got it to work, by forbidding to run on the last 2 cores:
Code:
jinks /disco2/chroot/amd64 # schedtool -a 0xf -e chroot . /bin/bash
jinks / # ls
bin   dev  home  lib32  media  opt   root  sbin  tmp  var
boot  etc  lib   lib64  mnt    proc  run   sys   usr
jinks / # exit
exit
jinks /disco2/chroot/amd64 #

And it is stable.

A bit more of information:
Code:
# uname -a; qemu-x86_64 --version; gcc --version
Linux jinks 4.4.154 #8 SMP Fri Oct 12 00:42:01 CEST 2018 aarch64 GNU/Linux
qemu-x86_64 version 2.12.1
Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers
gcc (Gentoo 7.3.0-r3 p1.4) 7.3.0
Copyright (C) 2017 Free Software Foundation, Inc. ...


Messages In This Thread
qemu-x86_64 fails on A72 cores, but runs nice on A53 ones :) - by guannais - 10-11-2018, 07:32 PM

Possibly Related Threads…
Thread Author Replies Views Last Post
  Linux Host - QEMU Android Guest? rik-shaw 0 953 07-09-2020, 08:02 PM
Last Post: rik-shaw
  qemu-x86_64 on rockpro? pfremm 3 2,266 05-14-2019, 07:36 AM
Last Post: Crrlow

Forum Jump:


Users browsing this thread: 1 Guest(s)