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[Qemu-devel] [Bug 739785] Re: qemu-i386 user mode on ARMv5 host fails (b
From: |
Peter Maydell |
Subject: |
[Qemu-devel] [Bug 739785] Re: qemu-i386 user mode on ARMv5 host fails (bash: fork: Invalid argument) |
Date: |
Thu, 28 Apr 2011 13:53:43 -0000 |
> Do you think it will ever get fixed in a reasonable amount of time (or
ever)
Well, it's on my list of things to look at, but generally my focus is
the current (ARMv7) architecture, and fixing ARMv5 only bugs is lower
priority. But there's a pretty good chance I'll get to it somewhere in
the next few months.
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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