Re: [PATCH 1/1] RDMA/core: avoid kernel NULL pointer error

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Subject: Re: [PATCH 1/1] RDMA/core: avoid kernel NULL pointer error
From: Yanjun Zhu <yanjun.zhu@xxxxxxxxxx>
Date: Thu, 24 Jan 2019 17:02:41 +0800
Cc: dledford@xxxxxxxxxx, leon@xxxxxxxxxx, linux-rdma@xxxxxxxxxxxxxxx, haakon.bugge@xxxxxxxxxx, junxiao.bi@xxxxxxxxxx
In-reply-to: <20190123154933.GB9000@ziepe.ca>
Organization: Oracle Corporation
References: <20190122071821.16174-1-yanjun.zhu@oracle.com> <20190122161518.GF4491@ziepe.ca> <418cf4cc-e715-6011-5c3d-34f4cf8baffb@oracle.com> <20190123045855.GB643@ziepe.ca> <09abef2c-9a75-7eaf-548f-a83d7e1e4c05@oracle.com> <20190123154933.GB9000@ziepe.ca>
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0


On 2019/1/23 23:49, Jason Gunthorpe wrote:

On Wed, Jan 23, 2019 at 04:55:01PM +0800, Yanjun Zhu wrote:

This mad_queue is sent to IB device. And IB_WC_WR_FLUSH_ERR is also sent to
IB device.

So it is very possible that mad_queue is set to NULL in IB device.

No it isn't.


You are so sure about it. :-(

Can you explain whyIB device does not make mad_queue NULL in details?;-)


Jason

Follow-Ups:
- Re: [PATCH 1/1] RDMA/core: avoid kernel NULL pointer error
  - From: Jason Gunthorpe

References:
- [PATCH 1/1] RDMA/core: avoid kernel NULL pointer error
  - From: Zhu Yanjun
- Re: [PATCH 1/1] RDMA/core: avoid kernel NULL pointer error
  - From: Jason Gunthorpe
- Re: [PATCH 1/1] RDMA/core: avoid kernel NULL pointer error
  - From: Yanjun Zhu
- Re: [PATCH 1/1] RDMA/core: avoid kernel NULL pointer error
  - From: Jason Gunthorpe
- Re: [PATCH 1/1] RDMA/core: avoid kernel NULL pointer error
  - From: Yanjun Zhu
- Re: [PATCH 1/1] RDMA/core: avoid kernel NULL pointer error
  - From: Jason Gunthorpe

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