[Bug 237666] repeated messages of "uhub_reattach_port: giving up port reset - device vanished"

bugzilla-noreply at freebsd.org bugzilla-noreply at freebsd.org
Wed Aug 7 08:52:49 UTC 2019


--- Comment #16 from Hans Petter Selasky <hselasky at FreeBSD.org> ---
Does it help to set:

sysctl hw.usb.disable_enumeration=1

After boot. Does the UPS still work?

I suspect the issue has nothing to do with USB, but likely early AP startup
(timing issue, can be disabled in kernel build) or ACPI's recent USB support.

1) Try removing this option from kernel config:
sys/amd64/conf/GENERIC:options  EARLY_AP_STARTUP

2) Try booting with the following line added to /boot/loader.conf:



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