linux-kernel - Re: [PATCH] nvme-pci: Disable Write Zeroes on Sandisk Skyhawk

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Date:   Thu, 15 Oct 2020 13:09:30 +0800
From:   Kai-Heng Feng <kai.heng.feng@...onical.com>
To:     Chaitanya Kulkarni <Chaitanya.Kulkarni@....com>
Cc:     "kbusch@...nel.org" <kbusch@...nel.org>,
        "axboe@...com" <axboe@...com>, "hch@....de" <hch@....de>,
        "sagi@...mberg.me" <sagi@...mberg.me>,
        open list <linux-kernel@...r.kernel.org>,
        "open list:NVM EXPRESS DRIVER" <linux-nvme@...ts.infradead.org>
Subject: Re: [PATCH] nvme-pci: Disable Write Zeroes on Sandisk Skyhawk



> On Oct 14, 2020, at 08:20, Chaitanya Kulkarni <Chaitanya.Kulkarni@....com> wrote:
> 
> On 10/13/20 01:45, Kai-Heng Feng wrote:
>> Like commit 5611ec2b9814 ("nvme-pci: prevent SK hynix PC400 from using
>> Write Zeroes command"), Sandisk Skyhawk has the same issue:
>> [ 6305.633887] blk_update_request: operation not supported error, dev nvme0n1, sector 340812032 op 0x9:(WRITE_ZEROES) flags 0x0 phys_seg 0 prio class 0
>> 
>> So also disable Write Zeroes command on Sandisk Skyhawk.
>> 
>> BugLink: https://bugs.launchpad.net/bugs/1899503
>> Signed-off-by: Kai-Heng Feng <kai.heng.feng@...onical.com>
> 
> Are you sure this happens all the devices of the same model
> 
> and not a firmware bug on specific device ?
> 
> If yes then looks good.

Yes, and this is the reply from WD, requested by the user:
"These are newest WD branded drives and WD already confirmed they are
the newest firmware / no upgrades are available."

Kai-Heng

> 
> Reviewed-by: Chaitanya Kulkarni <chaitanya.kulkarni@....com>
> 
> 
>