https://bugzilla.suse.com/show_bug.cgi?id=1215160 Bug ID: 1215160 Summary: "wipe" reports negative percentage in progress info for large target device Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.5 Hardware: x86-64 OS: openSUSE Leap 15.5 Status: NEW Severity: Normal Priority: P5 - None Component: Basesystem Assignee: screening-team-bugs@suse.de Reporter: jo4su@mqzmail.eu QA Contact: qa-bugs@suse.de Target Milestone: --- Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:109.0) Gecko/20100101 Firefox/115.0 Build Identifier: Running "wipe" on a 1.81 TiB disk, it shows negative percentages after moving on from "0%". This suggests that the calculations for the progress information are made with an unsuitable numeric type, overflows are not detected and wipe is not ready for large files and devices. Furthermore, running to "-5%" and then checking how much data of the 1.81 was overwritten, shows that it's not just a flipped sign as the absolute value moves faster than expected, completing a percentage point equivalent to 18.4 GiB in a few seconds even though the target device's write speed in only about 110 MiB/s at best. Reproducible: Always Steps to Reproduce: 1. create or select large file or device that can be overwritten and deleted for testing (my tests: 1995527224832 bytes and 2000395780096 bytes) 2. run "wipe" on the file (I added -D to keep the file for inspection) 3. observe progress information for a minute 4. ctrl-c at -7% 5. repeat wipe with "-z" 6. ctrl-c at -5% 7. run "hexdump -C myfileordevice | head" to see how much data was zeroed Actual Results: /dev/bcache2: -2% Only 10.1 GiB, i.e. 0.5% of the 1.81 TiB device, were zeroed when "-5%" was displayed by "wipe". Expected Results: Percentage in range 0 to 100. For the 1.81 TiB device, between 83.4 GiB (4.5%) and 111.2 GiB (6%) should be zeroed if the displayed percentage just has the wrong sign. Likely, wipe cannot handle modern day file and device sizes properly as indicated by open issues on https://sourceforge.net/p/wipe/bugs/ and https://bugzilla.opensuse.org/show_bug.cgi?id=1117493 -- You are receiving this mail because: You are on the CC list for the bug.