Re: [PATCH] RDMA: null pointer in __ib_umem_release causes kernel panic

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On Wed, Jan 05, 2022 at 05:16:06PM +0000, Trond Myklebust wrote:
> > I'm confused, RPC/RDMA should never touch a umem at all.
> > 
> > Is this really the other bug where user and kernel MR are getting
> > confused?
> > 
> 
> As far as I know, RPC/RDMA is just using the RDMA api to register and
> unregister chunks of memory, so it is definitely not directly touching
> the umem. 

I mean, RPC/RDMA doesn't have a umem at all, so seeing it any stack
trace says something is corrupted

I suppose it is this:

https://lore.kernel.org/r/20211222101312.1358616-1-maorg@xxxxxxxxxx

Jason




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