[0.50.4] segmentation fault on linux

[steffakasid]

Describe the bug When upgrading to 0.50.4 via brew on my linux amazon workspace, running k9s fails with a segmentation fault.

To Reproduce Steps to reproduce the behavior:

1. try to run k9s in terminal
2. the process directly dies with [1] 1432049 segmentation fault k9s
3. Checking dmesg gives [289019.402520] 1431667 (k9s): Uhuuh, elf segment at 0000000001f0a000 requested but the memory is mapped already

Expected behavior K9s should start normally without seg faulting.

Versions (please complete the following information):

• OS: Red Hat Enterprise Linux 8.10
• K9s: 0.50.4
• K8s Client Version: v1.32.4
• K8s Kustomize Version: v5.5.0 -K8s Server Version: v1.30.10-eks-bc803b4

Additional context Maybe https://stackoverflow.com/questions/51656713/cannot-load-custom-elf-executable-in-gdb is related?

[steffakasid]

It looks like this is more a brew issue then an k9s issue as the binary file from releases works fine.

[steffakasid]

Maybe related to: https://github.com/Homebrew/homebrew-core/issues/163826 there are several other issues open @homebrew-core with bottles having a segmentation fault.

It's not clear to me how the bottles are build...

[R-Abinesh]

@steffakasid , Did you check the k9s.log for other information

[steffakasid]

Hi @R-Abinesh,

it looks like k9s is not even starting. It does not log anything.

Regards /Steffen

[ddefrancesco]

Hi, the tarballs of 0.50.4 on ubuntu 24.04 suffer this issue also, so possibly it might not be a homebrew issue.

Regards Daniele

[ddefrancesco]

Hi seems to be gone in 0.50.6. Regards

Daniele

[steffakasid]

I can not confirm. Just tested with my ubuntu 24.04 (WSL) and I'm seeing this issue with 0.50.6. I'll verify on my work machine next week.

[steffakasid]

One addition here:

• It works on my server with ubuntu 24.04
• It works under OSX
• It doesn't work with ubuntu 24.04 on WSL (no idea what the difference is to my server)

[steffakasid]

Today I found the following on my work machine:

ldd /home/linuxbrew/.linuxbrew/bin/k9s
/home/linuxbrew/.linuxbrew/bin/k9s: /lib64/libc.so.6: version `GLIBC_2.34' not found (required by /home/linuxbrew/.linuxbrew/bin/k9s)
/home/linuxbrew/.linuxbrew/bin/k9s: /lib64/libc.so.6: version `GLIBC_2.32' not found (required by /home/linuxbrew/.linuxbrew/bin/k9s)
	linux-vdso.so.1 (0x00007ffd666d4000)
	libc.so.6 => /lib64/libc.so.6 (0x00007fd7e0d50000)
	/home/linuxbrew/.linuxbrew/lib/ld.so => /lib64/ld-linux-x86-64.so.2 (0x00007fd7e1127000)

The bad thing is I'm on RHEL 8 so I'll not getting a newer glibc version...

Need to check this on my server...

[steffakasid]

ok strange on my ubuntu server k9s is not dynamically linked. It's a static binary...

[steffakasid]

Ok I got it: It looks like I try to install just brew install k9s anyway the installation instruction states to use brew install derailed/k9s/k9s not sure why there is a homebrew core formular for k9s which isn't working.

[steffakasid]

btw. the core formula builds from source where as the derailed/k9s/k9s formula just uses the released binary (from goreleaser)