Dear Maintainer,

My apologies if this has been handled by an update. I've skimmed Debian bugs, Github issues, and Github PRs without a match.

I was running `btrfs check —progress` on a file system, and its sensing of the terminal width started to misbehave.

e.g. on part [1/7], a snippet:
          (1:12:23 elapsed, 536234248 items ch[1/7] checking root items
         (1:12:24 elapsed, 536387178 items ch[1/7] checking root items
        (1:12:25 elapsed, 536563300 items ch[1/7] checking root items

I made the terminal a couple of characters wider in hopes it would at least line up better. (This didn’t help.)

part [2/7], checking extents, was working better until I attempted to change the width to better recreate and capture the original width on part 1, then, well, a snippet:
tents                         (358:28:32 elapsed, 82 items checked[2/7] checking ext
ents                         (358:28:33 elapsed, 82 items checked[2/7] checking exte
nts                         (358:28:34 elapsed, 82 items checked[2/7] checking exten
ts                         (358:28:35 elapsed, 82 items checked[2/7] checking extent

I expected the progress for each part to fit and stay on one line.

Hi James,

Reply follows in-line:

James Young <pronoiac@gmail.com> writes:

Would you please try:

  sudo apt install tee
  echo "deb http://deb.debian.org/debian/ bookworm-backports main" \
       | sudo tee /etc/apt/sources.list.d/bookworm-backports.list
  sudo apt update
  sudo apt install -t bookworm-backports btrfs-progs

and share if the problem still occurs?

What terminal are you using?  By chance is this a serial console or
IPMI?  I periodically run btrfs check to make sure that it works
properly and have never seen this.

Best,
Nicholas

Hi James,

Reply follows in-line:

James Young <pronoiac@gmail.com> writes:

Would you please try:

  sudo apt install tee
  echo "deb http://deb.debian.org/debian/ bookworm-backports main" \
       | sudo tee /etc/apt/sources.list.d/bookworm-backports.list
  sudo apt update
  sudo apt install -t bookworm-backports btrfs-progs

and share if the problem still occurs?

What terminal are you using?  By chance is this a serial console or
IPMI?  I periodically run btrfs check to make sure that it works
properly and have never seen this.

Best,
Nicholas

* bad: it's still an issue.
* good: I have suggestions.

Here's an excerpt of what I got with the updated version and a smaller
file system:
[1/8] checking log skipped (none written)
[1/7] checking root items                      (0:00:03 elapsed,
2944308 items checked)
[2/7] checking extents                         (0:00:05 elapsed, 30828
items checked)
[3/7] checking free space tree                 (0:00:00 elapsed, 81
items checked)
[4/7] checking fs roots                        (0:00:33 elapsed, 14014
items checked)
[5/7] checking csums (without verifying data)  (0:00:01 elapsed, 21003
items checked)
[6/7] checking root refs                       (0:00:00 elapsed, 3
items checked)
[8/8] checking quota groups skipped (not enabled on this FS)

If you look at it in a monospace font, the second column here all
start at character 48; it's not right-aligned, as I'd thought. The
character column furthest right is at character 88; using an earlier
count from a larger file system, it would've hit column 90, at least.

So, suggestions:
* as a workaround, always use a wide terminal
* emit the description and the status on separate lines, like:
[1/7] checking root items
  (0:00:03 elapsed, 2944308 items checked)

This is iterm, ssh, and tmux; $TERM is tmux-256color.

Thanks -
-James

* bad: it's still an issue.
* good: I have suggestions.

Here's an excerpt of what I got with the updated version and a smaller
file system:
[1/8] checking log skipped (none written)
[1/7] checking root items                      (0:00:03 elapsed,
2944308 items checked)
[2/7] checking extents                         (0:00:05 elapsed, 30828
items checked)
[3/7] checking free space tree                 (0:00:00 elapsed, 81
items checked)
[4/7] checking fs roots                        (0:00:33 elapsed, 14014
items checked)
[5/7] checking csums (without verifying data)  (0:00:01 elapsed, 21003
items checked)
[6/7] checking root refs                       (0:00:00 elapsed, 3
items checked)
[8/8] checking quota groups skipped (not enabled on this FS)

If you look at it in a monospace font, the second column here all
start at character 48; it's not right-aligned, as I'd thought. The
character column furthest right is at character 88; using an earlier
count from a larger file system, it would've hit column 90, at least.

So, suggestions:
* as a workaround, always use a wide terminal
* emit the description and the status on separate lines, like:
[1/7] checking root items
  (0:00:03 elapsed, 2944308 items checked)

This is iterm, ssh, and tmux; $TERM is tmux-256color.

Thanks -
-James