Re: [PATCH V2 0/4] nvme: fix two kinds of IO hang from removing NSs

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On Tue, Jun 20, 2023 at 01:04:33PM +0300, Sagi Grimberg wrote:
> 
> > Hello,
> > 
> > The 1st three patch fixes io hang when controller removal interrupts error
> > recovery, then queue is left as frozen.
> > 
> > The 4th patch fixes io hang when controller is left as unquiesce.
> 
> Ming, what happened to nvme-tcp/rdma move of freeze/unfreeze to the
> connect patches?

I'd suggest to handle all drivers(include nvme-pci) in same logic for avoiding
extra maintain burden wrt. error handling, but looks Keith worries about the
delay freezing may cause too many requests queued during error handling, and
that might cause user report.


Thanks, 
Ming




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