sup,

last week I bought a computer from lenovo
(http://sysinfo.9front.org/src/393/body), it's a "gamer" one because I
had huge a discount for that specific model, it came with an nvme
drive, long story short, 9front nvme driver stalls with it, and lenovo
ships a "broken"  controller SMI SM2262, this controller seems to be
so broken that it had multiple issues recorded on linux (eg
https://bugzilla.kernel.org/show_bug.cgi?id=202055), unfortunately
this nvme drive is shipped on almost all units of this model and  it
seems to be in some other lenovo laptop models here in south america
too

I was able to install 9front anyway(on another nvme, a decent one from
western digital), because somehow if I boot using an usb->sata adapter
to boot 9front communityvsinfra release iso I end up with a non-frozen
system, although the nvme driver does error there too, but it doesn't
crash. I can consistently boot 9front if I have hyperthreading on and
use the usb adapter just as a bootloader.

I found out that disabling/not building the sdnvme would make the
system boot fine from another nvme drive directly, so it was surely
related to the nvme driver, and even then I got the ahci and acpi
errors so that part seemed unrelated(I tried disabling acpi too).

so, after a lot of print statements I've found that the last message I
could print before the hang is around
http://code.9front.org/hg/plan9front/file/tip/sys/src/9/pc/sdnvme.c#l452

I'm clueless as to what I should do from this part onwards or what the
qcmd does. need help.

uramekus.