Re: [RFT v3] eata: Convert eata driver as normal PCI and platform device drivers

[Jiang Liu]

This is a multi-part message in MIME format.On 2015/9/26 14:27, Arthur Marsh wrote:
> 
> 
> Arthur Marsh wrote on 24/09/15 15:26:
>>
>>
>> Jiang Liu wrote on 24/09/15 13:58:
>>
>>> Hi James,
>>>     Thanks for review. How about the attached patch which addresses
>>> the three suggestions from you?
>>> Thanks!
>>> Gerry
>>
>> I've applied the patch, rebuilt the kernel and verified that it allows
>> unloading of the eata module and reloading it, as well as a successful
>> kexec.
>>
>> Regards,
>>
>> Arthur.
> 
> After some more thorough testing I've encountered an ongoing problem
> trying to use kexec with filesystems mounted with the eata driver.
> 
> If I boot up and have the eata driver loaded but no filesystem check or
> mounting of filesystems on the disk attached to the DPT2044W controller,
> then attempt a kexec reboot I get the reboot pausing after the
> "synchronizing scsi cache" messages and getting the errors that I have
> included as pictures in my previous reports.
> 
> If I do a normal boot which includes eata being loaded, the disk
> attached to the DPT2044W controller having its filesystems checked and
> mounted, then attempt a kexec reboot, I get the reboot pausing after the
> "synchronizing SCSI cache" messages as before.
> 
> If I un-mount the filesystems on the disk attached to the DPT2044W
> controller after start-up and try a reboot I get the same problem.
> 
> If I do modprobe -r eata after un-mounting the filesystems on the disk
> attached to the DPT2044W controller after a start-up kexec *works fine*.
Hi Arthur,
	The above results suggest that we need to shutdown eata
controller for kexec. So could you please try to apply the attached
patch upon the previous two patches?
Thanks!
Gerry