Looks like there's a pending patch[1].
I used the fix suggested by Sam Fulcomer[2] to set /sys/.../bcache/writeback_running to 0 because the cache mod we're using is writethrough.
| $ cat /sys/block/bcache0/bcache/writeback_running | 1
| $cat /sys/block/bcache0/bcache/state | clean
| $ cat /sys/block/bcache0/bcach/cache_mode | [writethrough] writeback writearound none
Load seems to have dropped from a constant 2 to around 1. I've left it over night and am not seeing any more call traces being logged.
[1] http://permalink.gmane.org/gmane.linux.kernel.bcache.devel/2499 [2] http://permalink.gmane.org/gmane.linux.kernel.bcache.devel/2492
Looks like there's a pending patch[1].
I used the fix suggested by Sam Fulcomer[2] to set /sys/.. ./bcache/ writeback_ running to 0 because the cache mod we're using is writethrough.
| $ cat /sys/block/ bcache0/ bcache/ writeback_ running
| 1
| $cat /sys/block/ bcache0/ bcache/ state
| clean
| $ cat /sys/block/ bcache0/ bcach/cache_ mode
| [writethrough] writeback writearound none
Load seems to have dropped from a constant 2 to around 1. I've left it over night and am not seeing any more call traces being logged.
[1] http:// permalink. gmane.org/ gmane.linux. kernel. bcache. devel/2499 permalink. gmane.org/ gmane.linux. kernel. bcache. devel/2492
[2] http://