On Tue, Nov 01, 2016 at 12:13:38PM +0800, Qu Wenruo wrote:
> Would you try to locate the range where we starts to fail to read?
>
> I still think the root problem is we failed to read the device in user
> space.
Understood.
I'll run this then:
myth:~# dd if=/dev/mapper/crypt_bcache0 of=/dev/null bs=1M &
[2] 21108
myth:~# while :; do killall -USR1 dd; sleep 1200; done
275+0 records in
274+0 records out
287309824 bytes (287 MB) copied, 7.20248 s, 39.9 MB/s
This will take a while to run, I'll report back on how far it goes.
Thanks,
Marc
--
"A mouse is a device used to point at the xterm you want to type in" - A.S.R.
Microsoft is to operating systems ....
.... what McDonalds is to gourmet cooking
Home page: http://marc.merlins.org/ | PGP 1024R/763BE901
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