[PATCH] nvmet-rdma: Suppress a class of lockdep complaints

Bart Van Assche bvanassche at acm.org
Tue May 9 15:33:35 PDT 2023


On 5/9/23 14:44, Shinichiro Kawasaki wrote:
> Bart, thank you very much for this immediate action after the discussion at LSF.
> This is encouraging. I applied the patch on top of v6.4-rc1 and ran the test
> case with various transports. Unfortunately, I observed kernel panics with rdma
> and siw transports [1][2]. Also I observed another lockdep WARN with tcp
> transport [3]. It looks that your fix unveiled more hidden issue/s.

Please use siw instead of rxe when running blktests - there are known 
issues with the rxe driver.

Please apply these patches on top of kernel v6.3 instead of v6.4-rc1. 
The hrtimer_interrupt() crash shown below is a v6.4-rc1 regression and 
does not occur with the v6.3 kernel.

Since my patch is for the RDMA transport, it is not clear to me why a 
report for the TCP transport is included in a reply to my patch?

Thanks,

Bart.



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