On 8/14/26 01:24, Kevin Bowling wrote:
On Thu, Aug 13, 2026 at 12:51 PM Michael Butler
<[email protected]> wrote:
On a Dell Latitude 5540 with two NVME disks, the last working commit
from bisection is a9752e9ac8a6.
Anything beyond this fails on start up with ..
d5540 kernel: nvme1: Resetting controller due to a timeout.
d5540 kernel: nvme1: event="start"
d5540 kernel: nvme1: event="success"
d5540 kernel: nvme1: aborting outstanding i/o
d5540 kernel: nvme1: done aborting outstanding i/o
It seems that the PCI changes don't work for disks attached in this
manner ..
Hi Michael,
I think the regression is 8e9fe9996a1f instead, specific to Intel VMD
attached devices, which synthesize a virtual pcie endpoint.
Can you try this on the failing kernel from the bootloader?
set hw.pci.enable_mps_tune=0
boot
And then try this patch (without setting the bootloader option):
https://reviews.freebsd.org/D58837
This patch restores normal behavour; thanks!
Michael
