On 28/01/16 12:51, Hummel Frank wrote:
Rebuiling the patched version with "make DEBUG=intel" leads to following output:
"iPXE initializing devices...  INTEL 0xd423c forced MAC reset (ctrl 00100260)"
"INTEL 0xd423c has autoloaded MAC address 00:xx:xx:xx:xx:xx" (Mac removed but 
was read correctly)
"INTEL 0xd423c link status is 00080480"
-->No further progress or output

Rebuiling the unpatched version with "make DEBUG=intel" leads to following 
output:
"iPXE initializing devices...  INTEL 0xd423c forced MAC reset (ctrl 00100260)"
"INTEL 0xd423c has autoloaded MAC address 00:xx:xx:xx:xx:xx" (Mac removed but 
was read correctly)
"INTEL 0xd423c link status is 00080680"
-->No further progress or output

Tested with git clone commit f0e9e55442023c2f18e62cf74fe9098e0a6f5347

Thomas Miletich successfully tested that in 03/2015 on a Thinkpad T440s. But 
for me this does not work using iPXE while Pxelinux V6.03 does work including 
http transfer and successful WinPE boot.

I'm stuck here. Can I provide any further help?

In this kind of situation, I usually resort to brute force debugging. Try adding some statements of the form

  DBG ( "*** %s %d ***\n", __FUNCTION__, __LINE__ );

at various points in the code to track down exactly where execution is reaching.

Michael
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