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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi,<o:p></o:p></p><p class=MsoNormal>I’ve come across an issue using the UNDI driver of the Broadcom 5709C card. I’ve been using the UDNI driver with no problems until recently I started getting the message “Try to free Memory without Signature” Utilizing different hardware vendors and through many trial and error tests I believe I’ve narrowed the issue down to something that was introduced in the Broadcom NetXtreme Ethernet Boot Agent v6.0.11 .<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Here is a copy of my console with some extra debug output from iPXE. You can ignore the “Getting ready to load into memory” message. That’s something I added to the source to try and track down the exact line of code the failure was occurring at which I found to be line 00097 of <b><span style='font-size:9.0pt;font-family:"Verdana","sans-serif";color:black'>arch/i386/drivers/net/<a href="http://dox.ipxe.org/undirom_8c.html">undirom.c</a> <a href="http://dox.ipxe.org/undirom_8c_source.html"><span style='font-weight:normal'>[code]</span></a><o:p></o:p></span></b></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>00097 /* Call loader */<o:p></o:p></p><p class=MsoNormal>00098 undi_loader_entry = undirom->loader_entry;<o:p></o:p></p><p class=MsoNormal>00099 __asm__ __volatile__ ( REAL_CODE ( "pushw %%ds\n\t"<o:p></o:p></p><p class=MsoNormal>00100 "pushw %%ax\n\t"<o:p></o:p></p><p class=MsoNormal>00101 "lcall *undi_loader_entry\n\t"<o:p></o:p></p><p class=MsoNormal>00102 "addw $4, %%sp\n\t" )<o:p></o:p></p><p class=MsoNormal>00103 : "=a" ( exit )<o:p></o:p></p><p class=MsoNormal>00104 : "a" ( __from_data16 ( &undi_loader ) )<o:p></o:p></p><p class=MsoNormal>00105 : "ebx", "ecx", "edx", "esi", "edi", "ebp" );<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Error Image: <a href="http://home.comcast.net/~john.julien/ipxe/ipxe_error.gif">http://home.comcast.net/~john.julien/ipxe/ipxe_error.gif</a><o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Does anyone have any idea what might be causing this or how I might narrow it down any further?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks,<o:p></o:p></p><p class=MsoNormal>John<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>