[PATCH] PCI: Mark Nvidia GB10 to avoid bus reset

Johnny-CC Chang (張晋嘉) Johnny-CC.Chang at mediatek.com
Tue Nov 18 01:39:18 PST 2025


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


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