hi,<div>I&#39;m porting a sound card(ens1370)to DDE, but found some errors  in the function of kobj_map whic is  in map.c(l4/pkg/dde/linux26/contrib.drivers/base/map.c)</div><div>What&#39;s more, I check the ELF format of this sound card.The error is in the address of 821607. The related messages show as follows:</div>
<div><br></div><div>/home/wangjingyi/l4/tudos/l4/pkg/dde/linux26/contrib/drivers/base/map.c:58<br>        mutex_lock(domain-&gt;lock);<br>  821603:       8b 55 08                mov    0x8(%ebp),%edx<br>  821606:       58                      pop    %eax<br>
  821607:       8b 82 fc 03 00 00       mov    0x3fc(%edx),%eax<br>  82160d:       50                      push   %eax<br>  82160e:       e8 cd 65 02 00          call   847be0 &lt;mutex_lock&gt;<br><br></div><div>I was wondering  what caused this error and how to fix it.</div>
<div>Thanks!<br><br>
</div>