Server doesn't boot when 3 PCIe slots are populated
list1 at gjunka.com
Sat Jan 13 16:21:33 UTC 2018
I am installing a FreeBSD server based on Supermicro H8SML-iF. There are
three PCIe slots to which I installed 2 NVMe drives and one network card
Intel I350-T4 (with 4 Ethernet slots).
I am observing a strange behavior where the system doesn't boot if all
three PCIe slots are populated. It shows this message:
nvme0: <Generic NVMe Device> mem 0xfd8fc000-0xfd8fffff irq 24 at device
0.0 on pci1
nvme0: controller ready did not become 1 within 30000 ms
nvme0: did not complete shutdown within 5 seconds of notification
The I see a kernel panic/dump and the system reboots after 15 seconds.
If I remove one card, either one of the NVMe drives or the network card,
the system boots fine. Also, if in BIOS I set PnP OS to YES then
sometimes it boots (but not always). If I set PnP OS to NO, and all
three cards are installed, the system never boots.
When the system boots OK I can see that the network card is reported as
4 separate devices on one of the PCIe slots. I tried different NVMe
drives as well as changing which device is installed to which slot but
the result seems to be the same in any case.
What may be the issue? Amount of power drawn by the hardware? Too many
devices not supported by the motherboard? Too many interrupts for the
FreeBSD kernel to handle?
Any help would be greatly appreciated.
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