On 12-02-04 11:05 AM, Tullio Dovera wrote:
My platform is based on linux v3.2.2 + Debian stable zfs-fuse-0.6.9-1 application When I use a dedicated scsi partition for zfs-fuse I see the following warnings at kernel level: kernel: [ 12.881949] zfs-fuse: sending ioctl 2285 to a partition! The SG_IO is blocked inside scsi_verify_blk_ioctl() function. In order to permit SG_IO for a partition I suggest to add it in the white list: --- a/block/scsi_ioctl.c 2012-02-01 11:10:41.000000000 +0100 +++ b/block/scsi_ioctl.c 2012-02-01 11:31:09.000000000 +0100 @@ -710,6 +710,7 @@ case SG_GET_RESERVED_SIZE: case SG_SET_RESERVED_SIZE: case SG_EMULATED_HOST: + case SG_IO: return 0; case CDROM_GET_CAPABILITY: /* Keep this until we remove the printk below. udev sends it
If I'm not mistaken, the whole point of a series of patches titled: "fail SCSI passthrough ioctls on partition devices" was to flag and ultimately break any user space code that attempted to use the SG_IO ioctl on a partition block device (e.g. send a SCSI INQUIRY via SG_IO to /dev/sda2). This is for security reasons. So when the kernel enforces that, zfs-fuse will break. Please alert the zfs-fuse maintainers. Doug Gilbert -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
