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FS#3404 - zsh: cannot backspace when connected from openssh in tmux #8261

openwrt-bot opened this issue Oct 24, 2020 · 1 comment
core packages pull request/issue for core (in-tree) packages flyspray


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openwrt-bot commented Oct 24, 2020


Supply the following if possible:

  • Device problem occurs on: NETGEAR WNDR4300
  • Software versions of OpenWrt/LEDE release, packages, etc.
    • OpenWrt 19.07.4 r11208-ce6496d796
    • zsh - 5.6.2-2
  • Steps to reproduce
    1. Start a tmux session on Linux PC
    2. Use ssh to connect to OpenWRT router, where the user uses zsh instead of zsh (i.e. the config in /etc/passwd looks like this root:x:0:0:root:/root:/usr/bin/zsh)
    3. Type arbitrary words and delete them by pressing Backspace key
  • Expected behavior
    The chars are deleted
  • Actual behavior
    A whitespace was appended to the char instead, as if we're typing the space key, but it's deleted internally: when pressing Enter to execute the command, what's been executed is the original command minus the deleted part

Note that I don't have the issue when:

  1. connecting to a normal Linux computer (the user's shell is zsh ofc)
  2. using the default busybox ash
  3. executing ssh outside tmux, e.g. a normal Konsole terminal session
@aparcar aparcar added the core packages pull request/issue for core (in-tree) packages label Feb 22, 2022
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jow- commented Apr 26, 2022

Fixed by 917126f

@jow- jow- closed this as completed Apr 26, 2022
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core packages pull request/issue for core (in-tree) packages flyspray
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