> From: Christoph Hellwig [mailto:[email protected]]
> Sent: Thursday, January 12, 2017 21:44
> To: Dexuan Cui <[email protected]>
> Cc: Christoph Hellwig <[email protected]>; [email protected]; Jens Axboe
> <[email protected]>; Vitaly Kuznetsov <[email protected]>; linux-
> [email protected]; KY Srinivasan <[email protected]>; Chris Valean
> (Cloudbase Solutions SRL) <[email protected]>
> Subject: Re: [Regression] fstrim hangs on Hyper-V: caused by "block: improve
> handling of the magic discard payload"
>
> Hi Dexuan,
>
> sorry for dropping the ball on the previous private report, I hoped
> I could get my hands on a Hyper-V VM and reproduce it myself, but
> that has obviously not happened.
>
> Can you send me the output of the provisioning_mode file for the
> scsi disk in question to get started?
Hi Christoph,
Thank you very much for the help!
The file just shows "unmap":
root@decui-u1604:~# cd /sys/class/scsi_disk/2\:0\:0\:0
root@decui-u1604:/sys/class/scsi_disk/2:0:0:0# ls
allow_restart cache_type device manage_start_stop
max_write_same_blocks protection_mode provisioning_mode thin_provisioning
app_tag_own deferred_probe FUA max_medium_access_timeouts power
protection_type subsystem uevent
root@decui-u1604:/sys/class/scsi_disk/2:0:0:0# cat provisioning_mode
unmap
I'm ready to provide any info you need. :-)
Thanks,
-- Dexuan
