Re: [PATCH] PCI: Mark Nvidia GB10 to avoid bus reset
From: Johnny-CC Chang (張晋嘉)
Date: Tue Nov 18 2025 - 04:43:43 EST
On Thu, 2025-11-13 at 10:39 +0100, Lukas Wunner wrote:
> On Thu, Nov 13, 2025 at 04:44:06PM +0800, Johnny Chang wrote:
> > Nvidia GB10 PCIe hosts will encounter problem occasionally
> > after SBR(secondary bus reset) is applied.
>
> Could you elaborate what kinds of problems occur, how often they
> occur, etc?
There is about 1/1000 chance that after SBR is applied, any further
access via this root port will be blocked and make system crash.
Thanks,
Johnny