[Spice-devel] Spice is breaking in 32 bits hosts

[Alon Levy]

On Mon, Mar 19, 2012 at 09:00:51AM +0200, Arnon Gilboa wrote:
> AFAIK, Spice server works only "on x86_64, because it is dependent
> on 64-bit atomic operations. There is no known plan to port it to
> other architecture." See http://www.spice-space.org/page/FAQ.

Arnon, we built it already for 32 bits, might as well fix it, or help
Fabiano fix it. Those atomic operations can be done on 32 bit as well,
or replaced by something.

> 
> 
> Fabiano Fidêncio wrote:
> >Guys, I've been trouble using spice-protocol/spice/qemu from git, in a
> >32 bits host.
> >
> >Could somone take a look in this issue?
> >
> >fidencio at sasha ~/src/spice $ sudo
> >LD_LIBRARY_PATH=/home/fidencio/dev/lib gdb --args
> >/home/fidencio/dev/bin/qemu-system-i386 -enable-kvm -m 1024 -device
> >e1000,vlan=0 -net tap,script=/home/fidencio/dev/etc/qemu-ifup -vga qxl
> >/home/fidencio/libvirt/images/fedora16-i686.img
> >Copyright (C) 2011 Free Software Foundation, Inc.
> >License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
> >This is free software: you are free to change and redistribute it.
> >There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
> >and "show warranty" for details.
> >This GDB was configured as "i686-redhat-linux-gnu".
> >For bug reporting instructions, please see:
> ><http://www.gnu.org/software/gdb/bugs/>...
> >Reading symbols from /home/fidencio/dev/bin/qemu-system-i386...(no
> >debugging symbols found)...done.
> >(gdb) r
> >Starting program: /home/fidencio/dev/bin/qemu-system-i386 -enable-kvm
> >-m 1024 -device e1000,vlan=0 -net
> >tap,script=/home/fidencio/dev/etc/qemu-ifup -vga qxl
> >/home/fidencio/libvirt/images/fedora16-i686.img
> >[Thread debugging using libthread_db enabled]
> >Using host libthread_db library "/lib/libthread_db.so.1".
> >Detaching after fork from child process 7306.
> >Bringing up interface tap0... Done
> >Adding interface tap0 to bridge br0... Done
> >[New Thread 0xb7edab40 (LWP 7316)]
> >[New Thread 0xb76d9b40 (LWP 7317)]
> >do_spice_init: starting 0.10.1
> >spice_server_add_interface: SPICE_INTERFACE_QXL
> >[New Thread 0xb1b8ab40 (LWP 7318)]
> >red_worker_main: begin
> >display_channel_create: create display channel
> >cursor_channel_create: create cursor channel
> >id 0, group 0, virt start 0, virt end ffffffff, generation 0, delta 0
> >get_virt: panic: slot_id too big, addr=b1b8b008
> >
> >Program received signal SIGABRT, Aborted.
> >[Switching to Thread 0xb1b8ab40 (LWP 7318)]
> >0x00133416 in __kernel_vsyscall ()
> >
> >(gdb) bt
> >#0  0x00133416 in __kernel_vsyscall ()
> >#1  0x0077d98f in __GI_raise (sig=6)
> >    at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
> >#2  0x0077f2d5 in __GI_abort () at abort.c:91
> >#3  0x00634de0 in get_virt (info=0xb1b87800, addr=2981670920, add_size=
> >    1228800, group_id=0) at red_memslots.c:110
> >#4  0x0064324a in dev_create_primary_surface (worker=0xb1a66030,
> >    surface_id=<optimized out>, surface=...) at red_worker.c:10417
> >#5  0x006433fe in handle_dev_create_primary_surface (opaque=0xb1a66030,
> >    payload=0xb1200468) at red_worker.c:10443
> >#6  0x006322bc in dispatcher_handle_single_read (dispatcher=0x80a82cd0)
> >    at dispatcher.c:120
> >#7  dispatcher_handle_recv_read (dispatcher=0x80a82cd0) at dispatcher.c:143
> >#8  0x00637636 in handle_dev_input (fd=20, event=1, opaque=0xb1a66030)
> >    at red_worker.c:11032
> >#9  0x0064d965 in red_worker_main (arg=0xbfffeecc) at red_worker.c:11163
> >#10 0x004c7cd3 in start_thread (arg=0xb1b8ab40) at pthread_create.c:309
> >#11 0x00841a2e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:133
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