Comment # 14 on bug 1051686 from Coly Li

(In reply to Stefan Priebe from comment #13)
> I reverted this commit yesterday:
> https://github.com/openSUSE/kernel-source/blob/openSUSE-42.3/patches.suse/
> 0001-bcache-only-recovery-I-O-error-for-writethrough-mode.patch
> 
> and haven't seen it since reverting it. Will wait another 24hours.

If such error does not happen after reverting this patch, I will send you
another patch to print out information when recovery failed I/O.

This patch is to avoid bcache to recovery staled data from backing device if
cache device failed (-EIO returned when accessing dirty data on cache device).
After another 24 hours no error reported from XFS, and your cache device is in
health status, then let's see what is missing in the reverted patch.

Thanks for the update.

Coly