Re: [PATCH] libata: blacklist Micron 500IT SSD with MU01 firmware

2018-04-05 Thread Martin K. Petersen

Sudip,

> Any reply from Micron yet?

No, let me poke them again.

> It might be better and safe to blacklist all Micron SSDs except M500DC
> and M500IT (with MG02 firmware) until Micron replies.

Yeah, let's do that if I don't hear back within a day or two.

-- 
Martin K. Petersen  Oracle Linux Engineering


Re: [PATCH] libata: blacklist Micron 500IT SSD with MU01 firmware

2018-04-05 Thread Martin K. Petersen

Sudip,

> Any reply from Micron yet?

No, let me poke them again.

> It might be better and safe to blacklist all Micron SSDs except M500DC
> and M500IT (with MG02 firmware) until Micron replies.

Yeah, let's do that if I don't hear back within a day or two.

-- 
Martin K. Petersen  Oracle Linux Engineering


Re: [PATCH] libata: blacklist Micron 500IT SSD with MU01 firmware

2018-04-05 Thread Sudip Mukherjee
Hi Martin,

On Fri, Mar 16, 2018 at 05:49:25PM -0400, Martin K. Petersen wrote:
> 
> Sudip,
> 
> >> Any reason to believe this deficiency is limited to MU01 firmware?
> >
> > Not really. But we also use MG02 firmware and afaik, Micron has
> > confirmed that MG02 is a fixed one.  I have only mentioned MU01 as I
> > know it has the problem.
> 
> Let me ask...

Any reply from Micron yet?

It might be better and safe to blacklist all Micron SSDs except M500DC
and M500IT (with MG02 firmware) until Micron replies.

--
Regards
Sudip


Re: [PATCH] libata: blacklist Micron 500IT SSD with MU01 firmware

2018-04-05 Thread Sudip Mukherjee
Hi Martin,

On Fri, Mar 16, 2018 at 05:49:25PM -0400, Martin K. Petersen wrote:
> 
> Sudip,
> 
> >> Any reason to believe this deficiency is limited to MU01 firmware?
> >
> > Not really. But we also use MG02 firmware and afaik, Micron has
> > confirmed that MG02 is a fixed one.  I have only mentioned MU01 as I
> > know it has the problem.
> 
> Let me ask...

Any reply from Micron yet?

It might be better and safe to blacklist all Micron SSDs except M500DC
and M500IT (with MG02 firmware) until Micron replies.

--
Regards
Sudip


Re: [PATCH] libata: blacklist Micron 500IT SSD with MU01 firmware

2018-03-16 Thread Martin K. Petersen

Sudip,

>> Any reason to believe this deficiency is limited to MU01 firmware?
>
> Not really. But we also use MG02 firmware and afaik, Micron has
> confirmed that MG02 is a fixed one.  I have only mentioned MU01 as I
> know it has the problem.

Let me ask...

-- 
Martin K. Petersen  Oracle Linux Engineering


Re: [PATCH] libata: blacklist Micron 500IT SSD with MU01 firmware

2018-03-16 Thread Martin K. Petersen

Sudip,

>> Any reason to believe this deficiency is limited to MU01 firmware?
>
> Not really. But we also use MG02 firmware and afaik, Micron has
> confirmed that MG02 is a fixed one.  I have only mentioned MU01 as I
> know it has the problem.

Let me ask...

-- 
Martin K. Petersen  Oracle Linux Engineering


Re: [PATCH] libata: blacklist Micron 500IT SSD with MU01 firmware

2018-03-16 Thread Sudip Mukherjee
Hi Martin,

On Fri, Mar 16, 2018 at 11:54:30AM -0400, Martin K. Petersen wrote:
> 
> Sudip,
> 
> > While whitelisting Micron M500DC drives, the tweaked blacklist entry
> > enabled queued TRIM from M500IT variants also. But these do not support
> > queued TRIM. And while using those SSDs with the latest kernel we have
> > seen errors and even the partition table getting corrupted.
> 
> > +   { "Micron_M500IT_*","MU01", ATA_HORKAGE_NO_NCQ_TRIM |
> > +   ATA_HORKAGE_ZERO_AFTER_TRIM, },
> 
> Any reason to believe this deficiency is limited to MU01 firmware?

Not really. But we also use MG02 firmware and afaik, Micron has
confirmed that MG02 is a fixed one.
I have only mentioned MU01 as I know it has the problem.

--
Regards
Sudip


Re: [PATCH] libata: blacklist Micron 500IT SSD with MU01 firmware

2018-03-16 Thread Sudip Mukherjee
Hi Martin,

On Fri, Mar 16, 2018 at 11:54:30AM -0400, Martin K. Petersen wrote:
> 
> Sudip,
> 
> > While whitelisting Micron M500DC drives, the tweaked blacklist entry
> > enabled queued TRIM from M500IT variants also. But these do not support
> > queued TRIM. And while using those SSDs with the latest kernel we have
> > seen errors and even the partition table getting corrupted.
> 
> > +   { "Micron_M500IT_*","MU01", ATA_HORKAGE_NO_NCQ_TRIM |
> > +   ATA_HORKAGE_ZERO_AFTER_TRIM, },
> 
> Any reason to believe this deficiency is limited to MU01 firmware?

Not really. But we also use MG02 firmware and afaik, Micron has
confirmed that MG02 is a fixed one.
I have only mentioned MU01 as I know it has the problem.

--
Regards
Sudip


Re: [PATCH] libata: blacklist Micron 500IT SSD with MU01 firmware

2018-03-16 Thread Martin K. Petersen

Sudip,

> While whitelisting Micron M500DC drives, the tweaked blacklist entry
> enabled queued TRIM from M500IT variants also. But these do not support
> queued TRIM. And while using those SSDs with the latest kernel we have
> seen errors and even the partition table getting corrupted.

> + { "Micron_M500IT_*","MU01", ATA_HORKAGE_NO_NCQ_TRIM |
> + ATA_HORKAGE_ZERO_AFTER_TRIM, },

Any reason to believe this deficiency is limited to MU01 firmware?

-- 
Martin K. Petersen  Oracle Linux Engineering


Re: [PATCH] libata: blacklist Micron 500IT SSD with MU01 firmware

2018-03-16 Thread Martin K. Petersen

Sudip,

> While whitelisting Micron M500DC drives, the tweaked blacklist entry
> enabled queued TRIM from M500IT variants also. But these do not support
> queued TRIM. And while using those SSDs with the latest kernel we have
> seen errors and even the partition table getting corrupted.

> + { "Micron_M500IT_*","MU01", ATA_HORKAGE_NO_NCQ_TRIM |
> + ATA_HORKAGE_ZERO_AFTER_TRIM, },

Any reason to believe this deficiency is limited to MU01 firmware?

-- 
Martin K. Petersen  Oracle Linux Engineering