On 12/4/12 6:29 AM, forrest wrote: > This problem is easily to reproduce > > Create a file with size larger than 1GB. > > dd if=/dev/zero of=/test_file bs=1M count=1024 > > Punch every even block in test_file, and then use debugfs to dump > extents, followings is dumped result > > 2/ 2 339/340 231197 - 231197 3917597 - 3917597 1 > 2/ 2 340/340 231199 - 231199 3917599 - 3917599 1 > 0/ 2 2/ 2 231201 - 262143 3901486 30943 > 1/ 2 1/ 46 231201 - 231880 3901488 680 > 2/ 2 1/340 231201 - 231201 3917601 - 3917601 1 > 2/ 2 2/340 231203 - 231203 3917603 - 3917603 1 > > Punch blocks #231779 ~#231201 , Can you explain what you mean by the above? Which blocks get punched? -Eric > to remove extent index, and then use > debugfs to dump extents, followings is dumped result -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
