4.17.x kernels cause "nvme0: controller is down" at boot on MacBook Air

asked 2018-10-13 16:33:19 -0600

netllama gravatar image

updated 2018-10-14 11:23:47 -0600

Ever since Fedora released 4.17.x kernels back in Fedora27, my MacBook Air (7,1) hangs during boot when attempting to use the nvme disk controller, with messages such as:

[   32.742056] llamamac kernel: nvme nvme0: controller is down; will reset: CSTS=0x3, PCI_STATUS=0x810
[ 32.767211] llamamac kernel: nvme nvme0: detected Apple NVMe controller, set queue depth=2 to work around controller resets
[ 48.368123] llamamac kernel: nvme nvme0: Device not ready; aborting reset
[ 48.368181] llamamac kernel: nvme nvme0: Removing after probe failure status: -19
[ 132.401562] llamamac dracut-initqueue[330]: Warning: dracut-initqueue timeout - starting timeout script

I also tried a fresh install of Fedora28 today, and it boots fine with the original 4.16.3-301.fc28.x86_64 kernel, but as soon as I upgrade past 4.16.x, the same problem persists.

I opened a bugzilla for this problem 3 months ago ( https://bugzilla.redhat.com/show_bug.... ), but no one has helped yet.

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Does 4.18 work? Here's updated Fedora 28 and 29 beta, both with 4.18 kernel.

Have you tried booting with nvme_core.default_ps_max_latency_us=5500 kernel parameter (with 5500, not 0 as value)?

ozeszty gravatar imageozeszty ( 2018-10-14 07:50:12 -0600 )edit

Thanks for your reply!

No, 4.18 does not work either. I tested with 4.18.12-200 yesterday, and it also exhibited the same misbehavior.

I just tried booting with nvme_core.default_ps_max_latency_us=5500 but it did not help either.

netllama gravatar imagenetllama ( 2018-10-14 11:23:25 -0600 )edit

Maybe there's some firmware update that made this kernel parameter work for others?

ozeszty gravatar imageozeszty ( 2018-10-15 17:47:34 -0600 )edit

The OSX install on this system claims that there's no updates. Plus, I've yet to find anyone (online) with one of these systems. It appears that Apple produced a SATA version and an NVMe version, and everyone seems to have the SATA variant.

netllama gravatar imagenetllama ( 2018-10-15 17:52:30 -0600 )edit