W dniu 24 lipca 2009 20:52 użytkownik Łukasz Jagiełło
<jagiello.lukasz@xxxxxxxxx> napisał:
>
> ERR_OUT: : Bad address
> ERR_OUT: : Bad address
> ERR_OUT: : Bad address
> ERR_OUT: : Bad address
> ERR_OUT: : Bad address
>From strace problem looks like that:
#v+
fstat64(4, {st_mode=S_IFREG|0644, st_size=2613, ...}) = 0
mmap2(NULL, 2613, PROT_READ, MAP_PRIVATE, 4, 0) = 0xb7b5c000
close(4) = 0
open("/dev/mem", O_RDONLY|O_LARGEFILE) = 4
close(4) = 0
open("/dev/mem", O_RDONLY|O_LARGEFILE) = 4
mmap2(NULL, 4096, PROT_READ, MAP_SHARED, 4, 0xfe) = -1 EFAULT (Bad address)
dup(2) = 5
fcntl64(5, F_GETFL) = 0x8002 (flags O_RDWR|O_LARGEFILE)
fstat64(5, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7b5a000
_llseek(5, 0, 0xbfadd664, SEEK_CUR) = -1 ESPIPE (Illegal seek)
write(5, "ERR_OUT: : Bad address\n"..., 23) = 23
close(5) = 0
munmap(0xb7b5a000, 4096) = 0
close(4) = 0
open("/dev/mem", O_RDONLY|O_LARGEFILE) = 4
mmap2(NULL, 4096, PROT_READ, MAP_SHARED, 4, 0xe0) = -1 EFAULT (Bad address)
dup(2) = 5
fcntl64(5, F_GETFL) = 0x8002 (flags O_RDWR|O_LARGEFILE)
fstat64(5, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 0), ...}) = 0
mmap2(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1,
0) = 0xb7b5a000
_llseek(5, 0, 0xbfadd094, SEEK_CUR) = -1 ESPIPE (Illegal seek)
write(5, "ERR_OUT: : Bad address\n"..., 23) = 23
close(5) = 0
munmap(0xb7b5a000, 4096) = 0
close(4) = 0
open("/dev/mem", O_RDONLY|O_LARGEFILE) = 4
#v-
Device for 136,0 exist:
[root@test-box dev]# ls -al pts/0
crw--w---- 1 root tty 136, 0 2009-07-24 14:57 pts/0
--
Łukasz Jagiełło
lukasz<at>jagiello<dot>org
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