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Message-ID: <439a83c1-4a61-0ef3-b77e-917c6ae2d653@huawei.com>
Date: Tue, 13 Aug 2024 09:14:08 +0800
From: Yihang Li <liyihang9@...wei.com>
To: Bart Van Assche <bvanassche@....org>,
	<James.Bottomley@...senPartnership.com>, <martin.petersen@...cle.com>
CC: <linux-scsi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linuxarm@...wei.com>, <prime.zeng@...wei.com>, <liyihang9@...wei.com>
Subject: Re: [PATCH v2] scsi: sd: retry command SYNC CACHE if format in
 progress



On 2024/8/13 5:24, Bart Van Assche wrote:
> On 8/9/24 6:59 PM, Yihang Li wrote:
>> If formatting a suspended disk (such as formatting with different DIF
>> type), the disk will be resuming first, and then the format command will
>> submit to the disk through SG_IO ioctl.
>>
>> When the disk is processing the format command, the system does not submit
>> other commands to the disk. Therefore, the system attempts to suspend the
>> disk again and sends the SYNC CACHE command. However, the SYNC CACHE
>> command will fail because the disk is in the formatting process, which
>> will cause the runtime_status of the disk to error and it is difficult
>> for user to recover it. Error info like:
>>
>> [  669.925325] sd 6:0:6:0: [sdg] Synchronizing SCSI cache
>> [  670.202371] sd 6:0:6:0: [sdg] Synchronize Cache(10) failed: Result: hostbyte=0x00 driverbyte=DRIVER_OK
>> [  670.216300] sd 6:0:6:0: [sdg] Sense Key : 0x2 [current]
>> [  670.221860] sd 6:0:6:0: [sdg] ASC=0x4 ASCQ=0x4
>>
>> To solve the issue, retry the command until format command is finished.
>>
>> Signed-off-by: Yihang Li <liyihang9@...wei.com>
> 
> Reviewed-by: Bart Van Assche <bvanassche@....org>
> 
> If you want this patch to land in older kernels a "Cc: stable" tag will
> have to be added.
> 
ok, I will add this tag in patch v3.

Thanks,

Yihang.

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