By bisecting we've isolated the commit where the issue was introduced:
commit
757ab983811ac8d3f65efb65b8309738bd33bea3
This makes sense, as it concerns timers on efi binaries
Regards
root@buildipxe:~/ipxe# git bisect good
757ab983811ac8d3f65efb65b8309738bd33bea3 is the first bad commit
commit 757ab983811ac8d3f65efb65b8309738bd33bea3
Author: Michael Brown
Date: Wed May 4 13:04:33 2016 +0100
[efi] Use a timer event to generate the currticks() timer
We currently use the EFI_CPU_ARCH_PROTOCOL's GetTimerValue() method to
generate the currticks() timer, calibrated against a 1ms delay from
the boot services Stall() method.
This does not work on ARM platforms, where GetTimerValue() is an empty
stub which just returns EFI_UNSUPPORTED.
Fix by instead creating a periodic timer event, and using this event
to increment a current tick counter.
Signed-off-by: Michael Brown
:04 04 1dbe9247a84ab3c0f05937ecf2b8dcdd02afd5dd
a96f6e6c8eabe48bb8442c6d95bdb093db108959 Msrc
On 12/05/2016 05:18 PM, Raphael G wrote:
Hello,
If this is not the correct place to report such troubles, sorry and do
not hesitate to redirect.
When chaining from the ipxe efi binary to freebsd efi loader, the boot
freezes during the loader code execution. See enclosed screenshot
https://dl.plik.ovh/file/G1s3BMIe8iLE0lka/26F6MpbbocfALMMq/freebsd_ipxe_boot_freeze.png
Not sure yet whether this is an ipxe issue or a freebsd efi loader one
(both freebsd 10 and 11).
When reversing to far commit 35c5379760aa1fea5e38f7a78b090f92bb7813ee,
from Dec 2014, we do not entcounter the issue
(issue appeared for sure before last July, so root cause must lie
somewhere in the commits between
35c5379760aa1fea5e38f7a78b090f92bb7813ee and
df85901768622b8aea94d39a28effdbf90f7d4f0)
Is this a known issue ? Any clue on what could be the root cause ?
Regards
# ##
Script sample to embed (or to chain to) to reproduce:
#!ipxe
:retry_dhcp
echo Dhcp ...
dhcp || goto retry_dhcp
echo FreeBSD-11 (UEFI)
chain http:///freebsd11-amd64-boot-loader.efi
dhcp.root-path=:/freebsd11-amd64-rescue
[]
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