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

To:	Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Subject:	Re: [Xen-devel] Re: 2.6.28.7 domU: 32-bit emulation seems to be broken
From:	Sven Köhler <sven.koehler@xxxxxxxxx>
Date:	Tue, 17 Mar 2009 15:08:58 +0100
Cc:	xen-devel@xxxxxxxxxxxxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx
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Jeremy Fitzhardinge schrieb:
> Sven Köhler wrote:
>> Jeremy Fitzhardinge schrieb:
>>> Jeremy Fitzhardinge wrote:
>>>>
>>>> Do you have auditing enabled?
>>> (No)
>>
>> You answered yourself, right?
>> (yes, CONFIG_AUDIT is disabled)
>>
>> Can I supply you with any further information?
> 
> I need to find/set up an AMD system to try to repro it I think.  I think
> the problem is actually the return from the syscall, rather than the
> syscall entry itself.  What happens if you run the program under either
> strace or gdb?

The program just works:

# strace ./a.out
execve("./a.out", ["./a.out"], [/* 24 vars */]) = 0
[ Process PID=8968 runs in 32 bit mode. ]
uname({sys="Linux", node="xen-to1", ...}) = 0
brk(0)                                  = 0x80c3000
brk(0x80c3cb0)                          = 0x80c3cb0
set_thread_area(0xffa5182c)             = 0
brk(0x80e4cb0)                          = 0x80e4cb0
brk(0x80e5000)                          = 0x80e5000
fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xfffffffff7f51000
write(1, "Hallo Welt!\n"..., 12Hallo Welt!
)        = 12
exit_group(0)                           = ?

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