Hi, when I use "fstrim" on a just newly "mkfs.xfs /dev/sdb"-ed filesystem on a newly mounted SSD (Crucial_CT1024M550SSD1, firmware MU01), I get (after some activity on the device) this error message:
fitrim ioctl failed: input/output error
Looking into the dmesg output reveals:
[1039455.530947] sd 0:0:1:0: [sdb] [1039455.533192] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE [1039455.535369] sd 0:0:1:0: [sdb] [1039455.537521] Sense Key : Illegal Request [current] [1039455.539684] Info fld=0x772cdab0 [1039455.541802] sd 0:0:1:0: [sdb] [1039455.543877] Add. Sense: Logical block address out of range [1039455.545966] sd 0:0:1:0: [sdb] CDB: [1039455.548008] Unmap/Read sub-channel: 42 00 00 00 00 00 00 00 18 00 [1039455.550080] end_request: critical target error, dev sdb, sector 1999428272
(I bought 4 of the same SSD model, and the error occurs the same with the other exemplars, so I assume this is not some hardware issue.) According to smartctl, the capacity of this SSD is:
User Capacity: 1,024,209,543,168 bytes [1.02 TB] Sector Sizes: 512 bytes logical, 4096 bytes physical
And cat /proc/partitions tells:
major minor #blocks name 8 16 1000204632 sdb
Kernel is mainline linux-3.17.1 fstrim --version says:
fstrim from util-linux 2.23.2
(Distribution is CentOS 7, if that matters.) Does anyone have a clue what's going wrong, here? Regards, Lutz Vieweg -- To unsubscribe from this list: send the line "unsubscribe util-linux" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
