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<p class="MsoNormal"><font face="Calibri" size="2"><span style="font-size:11.0pt">Our network infrastructure seems to have a significant delay between Layer 2 and Layer 3 readiness. This can cause failures to download bootfile; the request times out. This
patch is a bit of a hack - we've done some testing and with a 2 second sleep we still sometimes have issues, but have never had an issue with a 3 second sleep after 10,000+ gPXEs.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Calibri" size="2"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Calibri" size="2"><span style="font-size:11.0pt">As a suggestion, probably the correct way to resolve this is to have boot_next_server_and_filename() or maybe imgfetch() go through a series of sleeps and retries until it succeeds
or times out. Unfortunately what I have below works for me, and being short-staffed I don't have the time to turn it into a proper patch.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Calibri" size="2"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">--- gpxe.orig/src/usr/autoboot.c 2009-10-21 14:05:47.000000000 -0500<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">+++ gpxe.new/src/usr/autoboot.c 2009-11-23 10:49:07.000000000 -0600<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">@@ -21,6 +21,7 @@<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">#include <string.h><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">#include <stdio.h><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">#include <errno.h><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">+#include <unistd.h><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">#include <gpxe/netdevice.h><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">#include <gpxe/dhcp.h><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">#include <gpxe/settings.h><o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">@@ -172,6 +173,8 @@<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New""> fetch_ipv4_setting ( NULL, &next_server_setting, &next_server );<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New""> fetch_string_setting ( NULL, &filename_setting, buf, sizeof ( buf ) );<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New""> if ( buf[0] ) {<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">+ printf ( "Sleeping 3 seconds to complete port init...\n" );<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New"">+ sleep(3);<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New""> printf ( "Booting from filename \"%s\"\n", buf );<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New""> return boot_next_server_and_filename ( next_server, buf );<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New""> }<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Courier New" size="2"><span style="font-size:11.0pt;font-family:"Courier New""><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Calibri" size="2"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font face="Calibri" size="2"><span style="font-size:11.0pt">--<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Calibri" size="2"><span style="font-size:11.0pt">Geoffrey Silver<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Calibri" size="2"><span style="font-size:11.0pt">Global Infrastructure<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Calibri" size="2"><span style="font-size:11.0pt">CITADEL<o:p></o:p></span></font></p>
<p class="MsoNormal"><font face="Calibri" size="2"><span style="font-size:11.0pt"><o:p> </o:p></span></font></p>
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