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[Qemu-devel] [Bug 739785] Re: qemu-i386 user mode on ARMv5 host fails (b


From: Justin Shafer
Subject: [Qemu-devel] [Bug 739785] Re: qemu-i386 user mode on ARMv5 host fails (bash: fork: Invalid argument)
Date: Wed, 21 Sep 2011 12:10:48 -0000

See this can run the posix wine.. But I cant recreate it. Its running
qemu-0.12.2 which you can download and compile but I still cant get it
to play solitaire like I can with the one below.


wget http://a.trap.me.uk/qemu-i386

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https://bugs.launchpad.net/bugs/739785

Title:
  qemu-i386 user mode on ARMv5 host fails (bash: fork: Invalid argument)

Status in QEMU:
  New

Bug description:
  Good time of day everybody,

  I have been trying to make usermode qemu on ARM with plugapps
  (archlinux) with archlinux i386 chroot to work.

  1. I installed arch linux in a virtuabox and created a chroot for it with 
mkarchroot. Transferred it to my pogo plug into /i386/
  2. I comiled qemu-i386 static and put it into /i386/usr/bin/
  ./configure --static --disable-blobs --disable-system 
--target-list=i386-linux-user
  make

  3. I also compiled linux kernel 2.6.38 with CONFIG_BINFMT_MISC=y and 
installed it.
  uname -a
  Linux Plugbox 2.6.38 #4 PREEMPT Fri Mar 18 22:19:10 CDT 2011 armv5tel 
Feroceon 88FR131 rev 1 (v5l) Marvell SheevaPlug Reference Board GNU/Linux

  4. Added the following options into /etc/rc.local
  /sbin/modprobe binfmt_misc
  /bin/mount binfmt_misc -t binfmt_misc /proc/sys/fs/binfmt_misc
  echo 
':qemu-i386:M::\x7fELF\x01\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x03\x00:\xff\xff\xff\xff\xff\xfe\xfe\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfb\xff\xff\xff:/usr/bin/qemu-i386:'
 >/proc/sys/fs/binfmt_misc/register

  5. Also copied ld-linux.so.3 (actually ld-2.13.so because ld-
  linux.so.3 is a link to that file) from /lib/ to /i386/lib/

  6.Now i chroot into /i386 and I get this:
  address@hidden i386]# chroot .
  [II aI hnve ao address@hidden /]# pacman -Suy
  bash: fork: Invalid argument

  7.I also downloaded linux-user-test-0.3 from qemu website and ran the test:
  address@hidden linux-user-test-0.3]# make
  ./qemu-linux-user.sh
  [qemu-i386]
  ../qemu-0.14.0/i386-linux-user/qemu-i386 -L ./gnemul/qemu-i386 i386/ls -l 
dummyfile
  BUG IN DYNAMIC LINKER ld.so: dl-version.c: 210: _dl_check_map_versions: 
Assertion `needed != ((void *)0)' failed!
  make: *** [test] Error 127

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