https://bugzilla.kernel.org/show_bug.cgi?id=89511 --- Comment #47 from Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> --- All of your tests show that fdisk and mount work okay when the cache type is set to "write through", and they get errors when the cache type is set to "write back". You can see the difference between the two controllers when the drive is first detected. Your report_20150110_3.18.2_1.txt log contains: [ 13.637727] sd 3:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA whereas the report_20150110_3.18.2_2.txt log contains: [ 768.511250] sd 5:0:0:0: [sdc] No Caching mode page found [ 768.511380] sd 5:0:0:0: [sdc] Assuming drive cache: write through Obviously the two controllers don't have the same behavior. -- You are receiving this mail because: You are watching the assignee of the bug. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
