[Xen-users] Re: [Xen-devel] Re: 2.6.28.7 domU: 32-bit emulation seems to be broken

[Sven Köhler <sven.koehler@xxxxxxxxx>]

Jeremy Fitzhardinge schrieb:
> Sven Köhler wrote:
> > Also asking the devel-list for help:
> >
> > Sven Köhler schrieb:
> > > Hi,
> > >
> > > I cannot execute any 32-bit executables. Same problem with 2.6.29-rc7.
> > >
> > > I compiled and linked them statically on another machine where they work
> > > just fine! But inside the xen domU, they just segfault:
> > >
> > >
> > > a.out[32093] general protection ip:f7f7042f sp:ffc6f2d4 error:0
> > >
> > >
> > > Is this a knows problem? CONFIG_IA32_EMULATION is turned on!
> Hm, it works for me.  Can you give more detail about what you're trying 
> to run, the kernel .config and the distro?  dmesg output would have some 
> clues too.
xm dmesg shows nothing.

A full dmesg of the domU kernel is attached.

Mar 13 13:09:49 xen-sk1 kernel: klogd 1.4.1, log source = /proc/kmsg started.
Mar 13 13:09:49 xen-sk1 kernel: Cannot find map file.
Mar 13 13:09:49 xen-sk1 kernel: Linux version 2.6.28.7 
(root@xxxxxxxxxxxxxxxxxxxxx) (gcc version 4.1.2 (Gentoo 4.1.2)) #7 Fri Mar 13 
13:08:54 CET 2009
Mar 13 13:09:49 xen-sk1 kernel: Command line: root=/dev/xvda1 ro
Mar 13 13:09:49 xen-sk1 kernel: KERNEL supported cpus:
Mar 13 13:09:49 xen-sk1 kernel:   Intel GenuineIntel
Mar 13 13:09:49 xen-sk1 kernel:   AMD AuthenticAMD
Mar 13 13:09:49 xen-sk1 kernel:   Centaur CentaurHauls
Mar 13 13:09:49 xen-sk1 kernel: BIOS-provided physical RAM map:
Mar 13 13:09:49 xen-sk1 kernel:  Xen: 0000000000000000 - 00000000000a0000 
(usable)
Mar 13 13:09:49 xen-sk1 kernel:  Xen: 00000000000a0000 - 0000000000100000 
(reserved)
Mar 13 13:09:49 xen-sk1 kernel:  Xen: 0000000000100000 - 00000000007c6000 
(usable)
Mar 13 13:09:49 xen-sk1 kernel:  Xen: 00000000007c6000 - 00000000008a0000 
(reserved)
Mar 13 13:09:49 xen-sk1 kernel:  Xen: 00000000008a0000 - 000000001ae00000 
(usable)
Mar 13 13:09:49 xen-sk1 kernel: DMI not present or invalid.
Mar 13 13:09:49 xen-sk1 kernel: last_pfn = 0x1ae00 max_arch_pfn = 0x3ffffffff
Mar 13 13:09:49 xen-sk1 kernel: init_memory_mapping: 
0000000000000000-000000001ae00000
Mar 13 13:09:49 xen-sk1 kernel: last_map_addr: 1ae00000 end: 1ae00000
Mar 13 13:09:49 xen-sk1 kernel: (4 early reservations) ==> bootmem [0000000000 
- 001ae00000]
Mar 13 13:09:49 xen-sk1 kernel:   #0 [0000000000 - 0000001000]   BIOS data page 
==> [0000000000 - 0000001000]
Mar 13 13:09:49 xen-sk1 kernel:   #1 [00008a0000 - 00008a9000]   XEN PAGETABLES 
==> [00008a0000 - 00008a9000]
Mar 13 13:09:49 xen-sk1 kernel:   #2 [0000200000 - 00007c5468]    TEXT DATA BSS 
==> [0000200000 - 00007c5468]
Mar 13 13:09:49 xen-sk1 kernel:   #3 [0000100000 - 00001cd000]          PGTABLE 
==> [0000100000 - 00001cd000]
Mar 13 13:09:49 xen-sk1 kernel: Zone PFN ranges:
Mar 13 13:09:49 xen-sk1 kernel:   DMA      0x00000000 -> 0x00001000
Mar 13 13:09:49 xen-sk1 kernel:   DMA32    0x00001000 -> 0x00100000
Mar 13 13:09:49 xen-sk1 kernel:   Normal   0x00100000 -> 0x00100000
Mar 13 13:09:49 xen-sk1 kernel: Movable zone start PFN for each node
Mar 13 13:09:49 xen-sk1 kernel: early_node_map[3] active PFN ranges
Mar 13 13:09:49 xen-sk1 kernel:     0: 0x00000000 -> 0x000000a0
Mar 13 13:09:49 xen-sk1 kernel:     0: 0x00000100 -> 0x000007c6
Mar 13 13:09:49 xen-sk1 kernel:     0: 0x000008a0 -> 0x0001ae00
Mar 13 13:09:49 xen-sk1 kernel: No local APIC present
Mar 13 13:09:49 xen-sk1 kernel: Allocating PCI resources starting at 20000000 
(gap: 1ae00000:e5200000)
Mar 13 13:09:49 xen-sk1 kernel: Built 1 zonelists in Zone order, mobility 
grouping on.  Total pages: 106569
Mar 13 13:09:49 xen-sk1 kernel: Kernel command line: root=/dev/xvda1 ro
Mar 13 13:09:49 xen-sk1 kernel: Initializing CPU#0
Mar 13 13:09:49 xen-sk1 kernel: PID hash table entries: 2048 (order: 11, 16384 
bytes)
Mar 13 13:09:49 xen-sk1 kernel: Detected 2399.726 MHz processor.
Mar 13 13:09:49 xen-sk1 kernel: Console: colour dummy device 80x25
Mar 13 13:09:49 xen-sk1 kernel: console [tty0] enabled
Mar 13 13:09:49 xen-sk1 kernel: console [hvc0] enabled
Mar 13 13:09:49 xen-sk1 kernel: Dentry cache hash table entries: 65536 (order: 
7, 524288 bytes)
Mar 13 13:09:49 xen-sk1 kernel: Inode-cache hash table entries: 32768 (order: 
6, 262144 bytes)
Mar 13 13:09:49 xen-sk1 kernel: Memory: 423588k/440320k available (3176k kernel 
code, 1256k absent, 14908k reserved, 1836k data, 272k init)
Mar 13 13:09:49 xen-sk1 kernel: installing Xen timer for CPU 0
Mar 13 13:09:49 xen-sk1 kernel: Calibrating delay loop (skipped), value 
calculated using timer frequency.. 4799.45 BogoMIPS (lpj=23997260)
Mar 13 13:09:49 xen-sk1 kernel: Mount-cache hash table entries: 256
Mar 13 13:09:49 xen-sk1 kernel: CPU: L1 I Cache: 64K (64 bytes/line), D cache 
64K (64 bytes/line)
Mar 13 13:09:49 xen-sk1 kernel: CPU: L2 Cache: 512K (64 bytes/line)
Mar 13 13:09:49 xen-sk1 kernel: CPU: AMD Athlon(tm) 64 Processor 3800+ stepping 
02
Mar 13 13:09:49 xen-sk1 kernel: Apic disabled by BIOS
Mar 13 13:09:49 xen-sk1 kernel: net_namespace: 888 bytes
Mar 13 13:09:49 xen-sk1 kernel: Booting paravirtualized kernel on Xen
Mar 13 13:09:49 xen-sk1 kernel: Xen version: 3.3.0 (preserve-AD)
Mar 13 13:09:49 xen-sk1 kernel: Grant table initialized
Mar 13 13:09:49 xen-sk1 kernel: NET: Registered protocol family 16
Mar 13 13:09:49 xen-sk1 kernel: NET: Registered protocol family 2
Mar 13 13:09:49 xen-sk1 kernel: IP route cache hash table entries: 4096 (order: 
3, 32768 bytes)
Mar 13 13:09:49 xen-sk1 kernel: TCP established hash table entries: 16384 
(order: 6, 262144 bytes)
Mar 13 13:09:49 xen-sk1 kernel: TCP bind hash table entries: 16384 (order: 5, 
131072 bytes)
Mar 13 13:09:49 xen-sk1 kernel: TCP: Hash tables configured (established 16384 
bind 16384)
Mar 13 13:09:49 xen-sk1 kernel: TCP reno registered
Mar 13 13:09:49 xen-sk1 kernel: NET: Registered protocol family 1
Mar 13 13:09:49 xen-sk1 kernel: platform rtc_cmos: registered platform RTC 
device (no PNP device found)
Mar 13 13:09:49 xen-sk1 kernel: 00000000: 00 01 02 03 04 05 06 07 08 08 08 08 
08 08 08 08 
Mar 13 13:09:49 xen-sk1 kernel: Installing knfsd (copyright (C) 1996 
okir@xxxxxxxxxxxx).
Mar 13 13:09:49 xen-sk1 kernel: fuse init (API version 7.10)
Mar 13 13:09:49 xen-sk1 kernel: msgmni has been set to 828
Mar 13 13:09:49 xen-sk1 kernel: alg: No test for cipher_null 
(cipher_null-generic)
Mar 13 13:09:49 xen-sk1 kernel: alg: No test for digest_null 
(digest_null-generic)
Mar 13 13:09:49 xen-sk1 kernel: alg: No test for compress_null 
(compress_null-generic)
Mar 13 13:09:49 xen-sk1 kernel: alg: No test for fcrypt (fcrypt-generic)
Mar 13 13:09:49 xen-sk1 kernel: alg: No test for stdrng (krng)
Mar 13 13:09:49 xen-sk1 kernel: alg: No test for stdrng (ansi_cprng)
Mar 13 13:09:49 xen-sk1 kernel: io scheduler noop registered
Mar 13 13:09:49 xen-sk1 kernel: io scheduler anticipatory registered
Mar 13 13:09:49 xen-sk1 kernel: io scheduler deadline registered
Mar 13 13:09:49 xen-sk1 kernel: io scheduler cfq registered (default)
Mar 13 13:09:49 xen-sk1 kernel: Hangcheck: starting hangcheck timer 0.9.0 (tick 
is 180 seconds, margin is 60 seconds).
Mar 13 13:09:49 xen-sk1 kernel: Hangcheck: Using get_cycles().
Mar 13 13:09:49 xen-sk1 kernel: loop: module loaded
Mar 13 13:09:49 xen-sk1 kernel: PPP generic driver version 2.4.2
Mar 13 13:09:49 xen-sk1 kernel: PPP Deflate Compression module registered
Mar 13 13:09:49 xen-sk1 kernel: PPP BSD Compression module registered
Mar 13 13:09:49 xen-sk1 kernel: Initialising Xen virtual ethernet driver.
Mar 13 13:09:49 xen-sk1 kernel: blkfront: xvda1: barriers enabled
Mar 13 13:09:49 xen-sk1 kernel: blkfront: xvda2: barriers enabled
Mar 13 13:09:49 xen-sk1 kernel: tun: Universal TUN/TAP device driver, 1.6
Mar 13 13:09:49 xen-sk1 kernel: tun: (C) 1999-2004 Max Krasnyansky 
<maxk@xxxxxxxxxxxx>
Mar 13 13:09:49 xen-sk1 kernel: mice: PS/2 mouse device common for all mice
Mar 13 13:09:49 xen-sk1 kernel: device-mapper: ioctl: 4.14.0-ioctl (2008-04-23) 
initialised: dm-devel@xxxxxxxxxx
Mar 13 13:09:49 xen-sk1 kernel: Netfilter messages via NETLINK v0.30.
Mar 13 13:09:49 xen-sk1 kernel: nf_conntrack version 0.5.0 (3440 buckets, 13760 
max)
Mar 13 13:09:49 xen-sk1 kernel: CONFIG_NF_CT_ACCT is deprecated and will be 
removed soon. Please use
Mar 13 13:09:49 xen-sk1 kernel: nf_conntrack.acct=1 kernel paramater, acct=1 
nf_conntrack module option or
Mar 13 13:09:49 xen-sk1 kernel: sysctl net.netfilter.nf_conntrack_acct=1 to 
enable it.
Mar 13 13:09:49 xen-sk1 kernel: ctnetlink v0.93: registering with nfnetlink.
Mar 13 13:09:49 xen-sk1 kernel: ip_tables: (C) 2000-2006 Netfilter Core Team
Mar 13 13:09:49 xen-sk1 kernel: arp_tables: (C) 2002 David S. Miller
Mar 13 13:09:49 xen-sk1 kernel: TCP cubic registered
Mar 13 13:09:49 xen-sk1 kernel: NET: Registered protocol family 17
Mar 13 13:09:49 xen-sk1 kernel: Bridge firewalling registered
Mar 13 13:09:49 xen-sk1 kernel: Ebtables v2.0 registered
Mar 13 13:09:49 xen-sk1 kernel: RPC: Registered udp transport module.
Mar 13 13:09:49 xen-sk1 kernel: RPC: Registered tcp transport module.
Mar 13 13:09:49 xen-sk1 kernel: XENBUS: Device with no driver: device/console/0
Mar 13 13:09:49 xen-sk1 kernel: kjournald starting.  Commit interval 5 seconds
Mar 13 13:09:49 xen-sk1 kernel: EXT3-fs: mounted filesystem with ordered data 
mode.
Mar 13 13:09:49 xen-sk1 kernel: VFS: Mounted root (ext3 filesystem) readonly.
Mar 13 13:09:49 xen-sk1 kernel: Freeing unused kernel memory: 272k freed
Mar 13 13:09:49 xen-sk1 kernel: EXT3 FS on xvda1, internal journal
Mar 13 13:09:49 xen-sk1 kernel: Adding 995988k swap on /dev/xvda2.  Priority:-1 
extents:1 across:995988k
Mar 13 17:20:12 xen-sk1 kernel: a.out[1792] general protection ip:f7fd942f 
sp:ffed6934 error:0
Mar 14 03:10:59 xen-sk1 syslogd 1.4.1: restart.
Mar 14 10:06:40 xen-sk1 kernel: a.out[6030] general protection ip:f7ffa42f 
sp:ff8f9354 error:0

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