Re: [PATCH] Fix bnxt_re crash in bnxt_qplib_process_qp_event

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On Wed, Mar 5, 2025 at 5:02 AM Sherry Yang <sherry.yang@xxxxxxxxxx> wrote:
>
> Hi All,
>
> I encountered a similar issue with the bnxt_re driver from Linux 6.12 to 6.14
> where a KVM host kernel crash occurs in bnxt_qplib_process_qp_event due to a
> write access to an invalid memory address (ffff9f058cedbb10) after performing
> few SRIOV operations on the guest. It doesn’t happen on Linux 6.11. It can’t be
> reproduced consistently, happens 2 out of 5 times.
>

Below controller supports experiment level RDMA functionality.
We recommend using the next generation controller for RDAM
functionality but not the below one.
Broadcom BCM57417 NetXtreme-E 10Gb/25Gb RDMA Ethernet Controller

We have seen panic like you mentioned in our testing. Some of them are
Firmware issues.
Not a straightforward driver fix. If you do not have any use case of
RDMA on this controller, disable the RDMA feature on it.

Kashyap

> System details:
> - NIC: Broadcom BCM57417 NetXtreme-E 10Gb/25Gb RDMA Ethernet Controller
>

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