Hello, I found a problem in dm_blk_ioctl() in dm.c: In dm.c, dm_blk_ioctl() is assigning a full unsigned 32 bits of device size to a signed 32 bit size. This may cause BLKGETSIZE64 ioctl and BLKGETSIZE ioctl failed to get the device size when device size is larger than 1TB. I am using device-mapper.1.01.05. Changing "long size;" to "sector_t size;" might fix this up, it works for me. For example: error = ioctl(fd, BLKGETSIZE64, &size); returns "size" in bytes. -- Best Regards, Michael Yao -- dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
