| Summary: | Line wrapping over prompt in BASH | ||||||
|---|---|---|---|---|---|---|---|
| Product: | [Runtime] General Runtime | Reporter: | phodina | ||||
| Component: | General Runtime | Assignee: | Jason Wessel <jason.wessel> | ||||
| Status: | RESOLVED FIXED | QA Contact: | |||||
| Severity: | normal | ||||||
| Priority: | Medium+ | CC: | liezhi.yang, randy.macleod, richard.purdie, tvgamblin | ||||
| Version: | 2.7.2 | ||||||
| Target Milestone: | 3.2 M4 | ||||||
| Hardware: | x86 | ||||||
| OS: | Multiple | ||||||
| Whiteboard: | BACKPORT | ||||||
| OS type for building Yocto: | --- | Type of Regression: | --- | ||||
| Verified: | Documentation change: | Don't know | |||||
| Attachments: |
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Created attachment 4576 [details] Line wrapping over prompt in BASH I'm reporting a bug in `bash` shell. The issue is line wrapping over the `$PS1` prompt when I type more than 80 characters. Also resizing the terminal window doesn't update the shell size. The issue is present on `arm64` arch, but I replicaed it also in `qemux86`. It happens when I connect over serial as well as ssh. I'm using: - poky warrior: 38d5c8ea98cfa49825c473eba8984c12edf062be - meta-openembedded warrior: 3bdbf72e3a4bf18a4a2c7afbde4f7ab773aeded9 The target is `apollo-image` using bitbake. build/conf/local.conf: ``` MACHINE ?= "qemux86" DISTRO ?= "apollo-poky" ``` build/conf/bblayers.conf: ``` # POKY_BBLAYERS_CONF_VERSION is increased each time build/conf/bblayers.conf # changes incompatibly POKY_BBLAYERS_CONF_VERSION = "2" BBPATH = "${TOPDIR}" BBFILES ?= "" LAYERS = "/workdir" BBLAYERS ?= " \ ${LAYERS}/poky/meta \ ${LAYERS}/poky/meta-poky \ ${LAYERS}/poky/meta-yocto-bsp \ ${LAYERS}/meta-openembedded/meta-oe \ ${LAYERS}/meta-openembedded/meta-networking \ ${LAYERS}/meta-openembedded/meta-python \ ${LAYERS}/meta-openembedded/meta-perl \ ${LAYERS}/meta-apollo \ " SSTATE_DIR ?= "/shared/sstate/" DL_DIR ?= "/shared/downloads" SSTATE_MIRRORS = "file://.* file:///shared/sstate/PATH" ``` I'm using another layer called `meta-apollo`. meta-apollo/conf/distro/apollo-poky.conf: ``` require conf/distro/poky.conf VIRTUAL-RUNTIME_base-utils = "bash" PREFERRED_PROVIDER_virtual/base-utils="bash" PREFERRED_PROVIDER_base-utils="bash" ``` meta-apollo/recipes-core/images/apollo-image.bb: ``` IMAGE_INSTALL_append = " \ busybox \ bash \ xterm \ kernel-modules \ " ``` There is also attachment bash_prompt.png of the `bash` running in qemu for `x86`. The first input is before resizing the terminal window and the issue is not present. However, second input is after resizing the terminal window and you can see characters `3123` overwriting the prompt. Interesting fact is that running `busybox` does not reproduce the issue. I checked the `$PS1` var as possible cause but even a simple const string without special sequence is affected. Also calling manually the `resize` script from the package xterm to resize the terminal window does not help.