Re: Stardom SATA HSM violation

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Mark Lord wrote:
> Tejun Heo wrote:
>> Hello,
>>
>> Mark Lord wrote:
>>> I reported a very similar bug back a few releases ago.
>>> Anyone who wants to try it themselves, can do this with hdparm-7.7 (from
>>> sourceforge):
>>>
>>>    hdparm --drq-hsm-error /dev/sda
>>>
>>> Whether or not it hangs the machine does depend upon exactly which SATA
>>> LLD is used,
>>> and what model/revision of drive is installed.  But if it hangs for you
>>> (eg. Tejun),
>>> then you now have a way to reproduce a HSM error "on demand" for
>>> testing.  :)
>>
>> Neat.  Is this the FIFO-draining issue?
> 
> Yeah, that's the one.  And I still patch my own kernels to
> automatically drain up to 512 words from the FIFO when this happens.
> 
> Works like a charm.  Patch below for demonstration purposes.
> 
> Signed-Off-By:  Mark Lord <mlord@xxxxxxxxx>

I think there have been enough cases where this draining was necessary.
 IIRC, ata_piix was involved in those cases, right?  If so, can you
please submit a patch which applies this only to affected controllers?
I don't feel too confident about applying this to all SFF controllers.

Thanks.

-- 
tejun

-
To unsubscribe from this list: send the line "unsubscribe linux-ide" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Filesystems]     [Linux SCSI]     [Linux RAID]     [Git]     [Kernel Newbies]     [Linux Newbie]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Samba]     [Device Mapper]

  Powered by Linux