Re: Hang when loading the xhci driver

In reply to: Olivier_Cochard-Labbé : "Hang when loading the xhci driver"
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From: Warner Losh <imp_at_bsdimp.com>
Date: Fri, 19 Sep 2025 01:14:15 UTC

On Thu, Sep 18, 2025, 5:57 PM Olivier Cochard-Labbé <olivier@freebsd.org>
wrote:

> Hi,
> I am testing an HP Zbook (Strix Halo) and it boots correctly using the
> latest 16 kernel, but only when booting from the USB install media.
> Once installed and booting from disk, using the exact same kernel (and
> loader.conf), it seems to hang at the xHCI driver loading state.
>
> Extract of the dmesg while booting from USB (working):
>
> pcib7: <API PCI-PCI bridge> at device 8.3 on pci0
> pcib5: <ACPI PCI bus> on pcib7
> xhci1: <XHCI (generic) USB 3.0 controller> mem 0xd43000...
> xhci1: 64 bytes context size, 64-bit DMA
>
> And when booting from disk, it displays the pcib5 line, but hangs here.
>
> What kind of debug feature could I enable here (verbose and safe doesn’t
> help) ? Setting hw.usb.xhci.debug=1 in the /boot/loader.conf didn’t display
> more detail.
>

Do earlier kernels boot?

Can you net boot? Does that work?

Warner

>