> 2022年6月29日 16:09，Nikhil Kshirsagar <nkshirsagar@xxxxxxxxx> 写道： > > Hi Coly, > > Note I used partitions for the bcache as well as the hdd, not sure if > that's a factor. > > the kernel is upstream kernel - > > # uname -a > Linux bronzor 5.15.50-051550-generic #202206251445 SMP Sat Jun 25 > 14:51:22 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux Hi Nikhil, I don’t find the commit id 767db4b286c3e101ac220b813c873f492d9e4ee8 fro neither Linus tree nor stable tree. The tree you mentioned at https://kernel.ubuntu.com/~kernel-ppa/mainline/v5.15.50/cod/mainline/v5.15.50 (767db4b286c3e101ac220b813c873f492d9e4ee8), I am not sure whether it is a clone of Linus tree or stable tree. Maybe you may try v5.15.50 from the stable tree (git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git), then we can focus on identical code base. Thanks. Coly Li >>>>>> [snipped] >>>>>> >>>>>> Is this a bug? It's in writeback mode. I'd setup the cache and run stuff like, >>>>>> >>>>>> echo 0 > /sys/block/bcache0/bcache/sequential_cutoff >>>>>> >>>>>> I had also echoed 0 into congested_read_threshold_us, >>>>>> congested_write_threshold_us. >>>>>> >>>>>> echo writeback > /sys/block/bcache0/bcache/cache_mode >>>>> >>>>> Where do you get the kernel? If this is stable kernel, could you give me the HEAD commit id? >>>>> >>>>> Coly Li >>>>> >>>
