Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
Subject: Re: [PATCH v8 17/18] scsi: megaraid_sas: Added support for shared
 host tagset for cpuhotplug
To:     Kashyap Desai <kashyap.desai@broadcom.com>,
        Qian Cai <cai@redhat.com>, <axboe@kernel.dk>,
        <jejb@linux.ibm.com>, <martin.petersen@oracle.com>,
        <don.brace@microsemi.com>, <ming.lei@redhat.com>,
        <bvanassche@acm.org>, <dgilbert@interlog.com>,
        <paolo.valente@linaro.org>, <hare@suse.de>, <hch@lst.de>
CC:     Sumit Saxena <sumit.saxena@broadcom.com>,
        <linux-block@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-scsi@vger.kernel.org>, <esc.storagedev@microsemi.com>,
        "PDL,MEGARAIDLINUX" <megaraidlinux.pdl@broadcom.com>,
        <chenxiang66@hisilicon.com>, <luojiaxing@huawei.com>,
        Hannes Reinecke <hare@suse.com>
References: <1597850436-116171-1-git-send-email-john.garry@huawei.com>
 <1597850436-116171-18-git-send-email-john.garry@huawei.com>
 <fe3dff7dae4494e5a88caffbb4d877bbf472dceb.camel@redhat.com>
 <385d5408-6ba2-6bb6-52d3-b59c9aa9c5e5@huawei.com>
 <193a0440eed447209c48bda042f0e4db102355e7.camel@redhat.com>
 <519e0d58-e73e-22ce-0ddb-1be71487ba6d@huawei.com>
 <d8fd51b11d5d54e6ec7e4e9a4f7dcc83f1215cd3.camel@redhat.com>
 <d4f86cccccc3bffccc4eda39500ce1e1fee2109a.camel@redhat.com>
 <7624d3fe1613f19af5c3a77f4ae8fe55@mail.gmail.com>
From:   John Garry <john.garry@huawei.com>
Message-ID: <d1040c06-74ea-7016-d259-195fa52196a9@huawei.com>
Date:   Wed, 4 Nov 2020 18:08:28 +0000
User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101
 Thunderbird/68.1.2
MIME-Version: 1.0
In-Reply-To: <7624d3fe1613f19af5c3a77f4ae8fe55@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk

On 04/11/2020 16:07, Kashyap Desai wrote:
>>>
>>> v5.10-rc2 is also broken here.
>>
>> John, Kashyap, any update on this? If this is going to take a while to fix
>> it
>> proper, should I send a patch to revert this or at least disable the
>> feature by
>> default for megaraid_sas in the meantime, so it no longer breaks the
>> existing
>> systems out there?
> 
> I am trying to get similar h/w to try out. All my current h/w works fine.
> Give me couple of days' time.
> If this is not obviously common issue and need time, we will go with module
> parameter disable method.
> I will let you know.

Hi Kashyap,

Please also consider just disabling for this card, so any other possible 
issues are unearthed on other cards. I don't have this card or any x86 
machine to test it unfortunately to assist.

BTW, just to be clear, did you try the same .config as Qian Cai?

Thanks,
John