Re: VBEtool 0.5 adds support for amd64

[Couriousous <couriousous-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

Le Mercredi 30 Novembre 2005 03:29, Matthew Garrett a écrit :
> I've just uploaded vbetool 0.5 to
> http://www.srcf.ucam.org/~mjg59/vbetool . This version should work with
> newer kernels and also adds support for non-x86 architectures using the
> Scitech x86emu code found in X.org. My nx6125 successfully resumes video
> using vbestate saving/restoring, though attempting to re-POST it hangs
> the machine. Knowing how well it works for others would be nice.

Here is what a get on my x86_64 with a :
01:00.0 VGA compatible controller: nVidia Corporation GeForce 6200 
TurboCache(TM) (rev a1)

[root@localhost couriousous]# vbetool vbestate save
Get video state buffer size failed
Allocated buffer at 0x20000 (base is 0x0)
ES: 0x2000 EBX: 0x0000
Erreur de segmentation

Running it with gdb say that is segfault at:
Program received signal SIGSEGV, Segmentation fault.
0x0000000000425815 in rdw (addr=38088) at sys.c:269
269                     val = *(u16*)(M.mem_base + addr);
(gdb) list
264             else
265     #endif
266     #if defined(__alpha__) || defined(__alpha)
267                     val = ldw_u((u16*)(M.mem_base + addr));
268     #else
269                     val = *(u16*)(M.mem_base + addr);
270     #endif
271                     DB(     if (DEBUG_MEM_TRACE())
272                     printk("%#08x 2 -> %#x\n", addr, val);)
273         return val;
(gdb) print addr
$1 = 38088

Pmap on the process give:
[root@localhost couriousous]# pmap 5549
5549:   /usr/sbin/vbetool vbestate save
0000000000000000      4K rwxs-  /dev/mem
0000000000010000    256K rwxs-  /dev/zero (deleted)
00000000000a0000    384K rw-s-  /dev/mem
0000000000400000    200K r-x--  /usr/sbin/vbetool
0000000000532000      8K rw---  /usr/sbin/vbetool
0000000000534000    136K rw---    [ anon ]
00002aaaaaaab000     88K r-x--  /lib64/ld-2.3.5.so
00002aaaaaac1000      4K rw---    [ anon ]
00002aaaaabc0000      4K r----  /lib64/ld-2.3.5.so
00002aaaaabc1000      4K rw---  /lib64/ld-2.3.5.so
00002aaaaabc2000   1212K r-x--  /lib64/tls/libc-2.3.5.so
00002aaaaacf1000   1020K -----  /lib64/tls/libc-2.3.5.so
00002aaaaadf0000     12K r----  /lib64/tls/libc-2.3.5.so
00002aaaaadf3000     12K rw---  /lib64/tls/libc-2.3.5.so
00002aaaaadf6000     24K rw---    [ anon ]
00007fffff8ac000     84K rw---    [ stack ]
ffffffffff600000   8192K -----    [ anon ]
 total            11644K

Regards,
Couriousous


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