Aireplay-ng freezing (usleep and gettimeofday)

[misterx]

Source:  http://tinyshell.be/aircrackng/forum/index.php?topic=3064

root@Omega:~# aireplay-ng -2 -r arp-request1.cap ath0
open(/dev/rtc) failed: Device or resource busy
No source MAC (-h) specified. Using the device MAC (00:C0:A8:C1:6B:59)


        Size: 68, FromDS: 0, ToDS: 1 (WEP)

              BSSID  =  00:04:E2:46:8A:47
          Dest. MAC  =  FF:FF:FF:FF:FF:FF
         Source MAC  =  00:C0:A8:C1:6B:59

        0x0000:  0841 0201 0004 e246 8a47 00c0 a8c1 6b59  .A.....F.G....kY
        0x0010:  ffff ffff ffff 8001 d03f b800 035a 333b  .........?...Z3;
        0x0020:  322c 145b 2204 9953 d33f 9932 bbb3 2b8b  2,.["..S.?.2..+.
        0x0030:  7f9a 94f3 ba05 5f6c bf02 4209 2ff2 832d  ....._l..B./..-
        0x0040:  92ef 34e0                                ..4.

Use this packet ? y

Saving chosen packet in replay_src-0127-213226.cap
You should also start airodump-ng to capture replies.

And nothing happens.

The reason:

If rtc is not found/cannot be used, aireplay-ng tries to compensate that
by using usleep() together with gettimeofday() to have some sort of timer.
However the "bug" is, that gettimeofday together with usleep sometimes
just stalls the process (...)

[misterx]

Workaround:

try to use macchanger to change your card to the mac adress you are
inserting after the -h

I had the same problem, but after making sure the -h xxx and my card
matched, voila.. no more problems!

[intonnataLosy]

I'm new here, just wanted to say hello and introduce myself.

[netrolller3d]

"open(/dev/rtc) failed: Device or resource busy"

This looks like an old version to me...

[P1ro]

im pretty sure this its fixed on lastest, i have almost the same problem with rtc on old version but not anymore!