https://bugzilla.suse.com/show_bug.cgi?id=1230345 https://bugzilla.suse.com/show_bug.cgi?id=1230345#c4 --- Comment #4 from Ruediger Oertel <ro@suse.com> --- broken case: 3460311 openat(AT_FDCWD, "/dev/zipl0000", O_RDWR) = 4 3460311 ioctl(4, BLKFLSBUF) = 0 3460311 lseek(4, 0, SEEK_SET) = 0 3460311 read(4, "zIPL\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0\0\200\10\2\0\0\0\0\0\0\0"..., 512) = 512 working case: 3467985 openat(AT_FDCWD, "/dev/zipl0000", O_RDWR) = 4 3467985 ioctl(4, BLKFLSBUF) = 0 3467985 lseek(4, 0, SEEK_SET) = 0 3467985 read(4, "zIPL\0\0\0\1\0\0\0\0\0\0\0\0\0\0\0\0\0x`\2\2\0\0\0\0\0\0\0"..., 512) = 512 checking /dev/sdb vs /dev/mapper/3600507630bffd2160000000000002000 in both cases same output: s390zl21:~ # dd if=/dev/sda of=test1 bs=256 count=1 1+0 records in 1+0 records out 256 bytes copied, 5.3152e-05 s, 4.8 MB/s s390zl21:~ # xxd test1 00000000: 7a49 504c 0000 0001 0000 0000 0000 0000 zIPL............ 00000010: 0000 0000 0078 4062 0200 0000 0000 0000 .....x@b........ 00000020: 0000 0000 0000 0000 0000 0000 0000 0000 ................ -- You are receiving this mail because: You are on the CC list for the bug.