boot command hangs

[bacaw]

Hi,

I'm running ipxe commit d5c88c0 (Tue Feb 19 2019)

I have the following iPXE script:

Code:

#!ipxe
kernel -n img  http://<webserver>/fedora/28/x86_64/boot/vmlinuz ks=https://<webserver>:8443/kickstart ramdisk_size=8216 pcie_aspm=off ipv6.disable=1 cmdline inst.sshd noverifyssl biosdevname=0 net.ifnames=0 selinux=0
initrd http://<webserver>/fedora/28/x86_64/boot/initrd.img
boot img

I am PXE booting a Solarflare X2522 network card in a Dell R740 server

Code:

d8:00.0 Ethernet controller: Solarflare Communications SFC9250 10/25/40/50/100G Ethernet Controller (rev 01)
...
Product Name: Solarflare XtremeScale X2522 (10G) Adapter

When the card is in PCI Slot 1, SF OptionRom -> PXE -> iPXE -> boot, no problems.
When the card is in PCI Slot 8, SF OptionRom -> PXE -> iPXE -> hangs on 'boot' command!

Code:

iPXE> boot
_
<flashing cursor indefinitely>

Does anyone have any DEBUG= flags I could try (tcp doesn't show anything interesting)
Or knows of any iPXE related problems to this?
Or thinks it could be a Dell BIOS/iDRAC problem? (I'm on BIOS 1.6.12, iDRAC 3.21.26.22)

Any advice welcome

Thanks!
Ross