Re: [PATCH rdma-next v7 0/8] RDMA resource tracking

On Tue, 2018-01-30 at 14:42 -0700, Jason Gunthorpe wrote:

On Tue, Jan 30, 2018 at 09:40:14PM +0000, Bart Van Assche wrote:

quoted

On Tue, 2018-01-30 at 16:33 -0500, Laurence Oberman wrote:

quoted

Can I take your tree and see if this fails for me too,
Your last tree was fine, so did not have this latest stuff.
Can I just pull to what I have

Hello Laurence,

So far I have seen this behavior only inside a VM but not yet on a system
with more memory than the VM. This issue may be specific to the memory size
of the VM. I think we should try to isolate furhter what caused this before
trying to reproduce it on more setups.

Did you get an oops print related a kalloc failure?

Or am I wrong and the ENOMEM is coming from someplace else?

Hello Jason,

I just noticed the following in the system log:

Jan 30 12:53:15 ubuntu-vm kernel: ib_srp: rxe0: ib_alloc_mr() failed. Try to reduce max_cmd_per_lun, max_sect or ch_count

So apparently the ib_alloc_mr() fails sometimes (but not the first few times
it is called).

Thanks,

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