On Thu, Sep 15, 2016 at 11:36:14AM +0200, Marcin Mirosław wrote: > Hi! > I was playing with fs without tiering. I was using it for tmp dir for > compilation. Next I changed in sys: > echo crc64 > options/data_checksum > echo crc64 > options/metadata_checksum > echo crc64 > options/str_hash > > After a couple of minutes I got: > [ 8372.574346] bcache (dm-10): IO error on dm-10 for checksum error > [ 8372.680196] bcache (dm-10): IO error on dm-10 for checksum error > [ 8464.361860] bcache (dm-10): IO error on dm-10 for checksum error > [ 8466.146966] bcache (dm-10): IO error on dm-10 for checksum error > [ 8466.995095] bcache (dm-10): IO error on dm-10 for checksum error > [ 8469.199749] bcache (dm-10): IO error on dm-10 for checksum error > [ 8469.441408] bcache (dm-10): IO error on dm-10 for checksum error > [ 8469.722676] bcache (dm-10): IO error on dm-10 for checksum error > [ 8469.827055] bcache (dm-10): IO error on dm-10 for checksum error > [ 8470.038869] bcache (dm-10): IO error on dm-10 for checksum error > [ 8470.236663] bcache (dm-10): IO error on dm-10 for checksum error > [ 8470.427094] bcache (dm-10): IO error on dm-10 for checksum error > [ 8472.030519] bcache (dm-10): IO error on dm-10 for checksum error > [ 8473.098820] bcache (dm-10): IO error on dm-10 for checksum error > [ 8916.491297] bcache (dm-10): IO error on dm-10 for checksum error > [ 8916.715057] bcache (dm-10): IO error on dm-10 for checksum error > [ 8916.715111] bcache (dm-10): too many IO errors on dm-10, setting > filesystem RO > [ 8916.733056] bcache (dm-10): IO error on dm-10 for checksum error > [ 8916.733125] bcache (dm-10): dm-10 read only > [ 8916.733161] bcache (dm-10): too many IO errors on dm-10, setting > device RO > [ 8916.988286] bcache (dm-10): IO error: read only > [ 8916.988545] bcache (dm-10): IO error: read only > > > Is this due to changing str_hash? Damn, you're finding all the bugs :) I'm trying to reproduce it. It's probably due to changing data_checksum though, not str_hash (and changing all of those at runtime should definitely work! just neglected to test that, it seems...) -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
