[syslinux] Hyper-V Gen 2 waiting for ldlinux.e64

Geert Stappers stappers at stappers.nl
Wed Oct 7 14:10:55 PDT 2015


On Wed, Oct 07, 2015 at 06:01:30PM +0200, Geert Stappers via Syslinux wrote:
> On Wed, Oct 07, 2015 at 05:35:36PM +0200, Geert Stappers via Syslinux wrote:
> > On Wed, Oct 07, 2015 at 08:55:53AM -0500, Clements, James wrote:
> > > On Wed, Oct 07, 2015 Geert Stappers wrote
> > > > 13:36:47.974245 IP 192.168.205.50.1939 > 192.168.205.1.tftp:  47 RRQ "efi64/ldlinux.e64" octet tsize 0 blksize 1408
> > > > 13:36:47.974552 IP 192.168.205.1.56054 > 192.168.205.50.1939: UDP, length 28
> > > > 13:36:48.975612 IP 192.168.205.1.56054 > 192.168.205.50.1939: UDP, length 28
> > > > 13:36:50.971212 IP 192.168.205.1.57375 > 192.168.205.50.1937: UDP, length 28
> > > > 13:36:50.977653 IP 192.168.205.1.56054 > 192.168.205.50.1939: UDP, length 28
> > > >
> > > > I do read in that 192.168.205.50 going deaf.
> > > >
> > > 
> > > Do you have any suggestions on how I could resolve this issue then?
> > > 
> > 
> > Start with sharing more information. Information that I miss.
> > 
> >  * text which is on the screen of the netbooting (virtual) machine
> >  * when/why was the network capture stopped
> > 
> 
> And now a better suggestion
> 
> --- a/core/fs/pxe/isr.c
> +++ b/core/fs/pxe/isr.c
> @@ -267,6 +267,7 @@ void pxe_start_isr(void)
>         int hwad = ((int)MAC[0] << 16) + ((int)MAC[1] << 8) + MAC[2];
>         dprintf("pxe_start_isr: got %06x %04x\n", hwad, pxe_undi_iface.ServiceFlags);
>         if ((hwad == 0x000023ae) && (pxe_undi_iface.ServiceFlags == 0xdc1b) ||
> +           (hwad == 0x0000155d) && (pxe_undi_iface.ServiceFlags == 0xdc1b) ||
>             (hwad == 0x005c260a) && (pxe_undi_iface.ServiceFlags == 0xdc1b) ||
>             (hwad == 0x00180373) && (pxe_undi_iface.ServiceFlags == 0xdc1b)) {
>                 asm volatile("orb $1,%0" : "+m" (pxe_need_poll));
> 
> 
> See commit 1ada8a37ae30c2e4283c3e65444ccd72cf8a2e85 for where I see simularity.

http://repo.or.cz/syslinux.git/commitdiff/1ada8a37ae30c2e4283c3e65444ccd72cf8a2e85
is for BIOS, not for EFI. So that suggestion can be scraped.

Which makes
  * text which is on the screen of the netbooting (virtual) machine
  * when/why was the network capture stopped
more relevant.


Groeten
Geert Stappers
-- 
Leven en laten leven


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