Re: nvme timeout issues with hardware and bhyve vm's

Reply: Maxim Sobolev : "Re: nvme timeout issues with hardware and bhyve vm's"
In reply to: Warner Losh : "Re: nvme timeout issues with hardware and bhyve vm's"
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From: Bakul Shah <bakul_at_iitbombay.org>
Date: Fri, 08 Dec 2023 00:07:39 UTC

On Dec 7, 2023, at 3:59 PM, Warner Losh <imp@bsdimp.com> wrote:
> 
> 
>  *Overheating caused hang of NVMe controller or PCI bridge on SSD, or
> 
> Yes. Most drive's firmware when it overheats resets. There might be something
> that the pci code can do when this happens to retrain the link, reprogram the
> config registers, etc.

How quickly can the device heat up? Can it be queried frequently
enough act before it overheats by throttling io?