Re: RDMA/rxe is broken (impacting running NFSoRDMA over softRoCE)

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On 7/21/21 4:15 PM, Olga Kornievskaia wrote:
> On Wed, Jul 21, 2021 at 1:47 AM Leon Romanovsky <leon@xxxxxxxxxx> wrote:
>>
>> On Tue, Jul 20, 2021 at 05:48:03PM -0400, Olga Kornievskaia wrote:
>>> On Tue, Jul 20, 2021 at 2:27 AM Bob Pearson <rpearsonhpe@xxxxxxxxx> wrote:
>>
>> <...>
>>
>>> There were a number of commits that lead to crashes. commit
>>> ec9bf373f2458f4b5f1ece8b93a07e6204081667 "RDMA/core: Use refcount_t
>>> instead of atomic_t on refcount of ib_uverbs_device" leads to the
>>> following kernel oops. commit 205be5dc9984b67a3b388cbdaa27a2f2644a4bd6
>>> "RDMA/irdma: Fix spelling mistake "Allocal" -> "Allocate"" also leads
>>> to the kernel oops.
>>
>> The commits above aren't relevant to RXE at all.
>>
>> If first commit is wrong, all drivers will experience crashes and second
>> commit is in irdma and not in RXE.
>>
>> And both of them are legit commits.
> 
> Yes I realize they are problems outside of rxe but I didn't run into
> any crashes when I ran rpring on the 5.14-rc1 (it was hanging and
> that's what I reported here) so I thought perhaps later patches have
> addressed the crashes I've seen.
> 
> Would you like me to post a separate email report on the crash(es) (I
> don't recall if it's the same one or two different ones)?
> 
>>
>> Thanks

If you are able please try the patch I just sent. It should make things a little better.
If not I have another idea to try as well.
Bob



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