Re: IBM Power S822LC: pci 0021:0d:00.0: xHCI HW did not halt within 32000 usec status = 0x0

[Michal Pecio <michal.pecio@gmail.com>]

On Wed, 6 May 2026 18:06:20 +0200, Paul Menzel wrote:
> Dear Linux folks,
> 
> 
> On the IBM Power S822LC (8335-GCA POWER8), rebooting into Linux 7.1-rc2+ 
> with kexec results in the warning below:
> 
>      [    0.000000] Linux version 7.1.0-rc2+ (x@b) (gcc (Ubuntu 
> 11.2.0-7ubuntu2) 11.2.0, GNU ld (GNU Binutils for Ubuntu) 2.37) #3 SMP 
> PREEMPT Wed May  6 08:50:5
>      […]
>      [    0.000000] Hardware name: 8335-GCA POWER8 (raw) 0x4d0200 
> opal:skiboot-5.4.8-5787ad3 PowerNV
>      […]
>      [    1.593760] NET: Registered PF_UNIX/PF_LOCAL protocol family
>      [    1.593859] pci 0021:0d:00.0: enabling device (0140 -> 0142)
>      [    1.627080] pci 0021:0d:00.0: xHCI HW did not halt within 32000 
> usec status = 0x0
>      [    1.627094] pci 0021:0d:00.0: quirk_usb_early_handoff+0x0/0x300 
> took 32465 usecs
>      [    1.627123] PCI: CLS 0 bytes, default 128

Hi,

Does it work any better if kexecing other kernel versions?

What if you increase XHCI_MAX_HALT_USEC by 10* or 100* ?

Does the controller work normally after this warning?

Regards,
Michal