interestingly, the "glitch number" is error block index, syslog ``` I/O error, dev sda, sector 35702784 op 0x0:(READ) flags 0x4800 phys_seg 168 prio class 2 ```
badblocks ``` 159328% done, 12:07 elapsed. (5/0/0 errors) 161316% done, 12:15 elapsed. (6/0/0 errors) 6.80% done, 12:19 elapsed. (7/0/0 errors) 166217% done, 12:34 elapsed. (7/0/0 errors) 167171% done, 12:39 elapsed. (8/0/0 errors) 168808% done, 12:48 elapsed. (9/0/0 errors) 174331% done, 13:11 elapsed. (10/0/0 errors) 8.43% done, 15:06 elapsed. (11/0/0 errors) ``` ( 35702784 * 512 ) >> 20 = 17433
