Re: Linux 5.4 kselftest known issues - update

From: shuah
Date: Thu Oct 03 2019 - 10:31:12 EST


On 9/26/19 11:41 AM, Shuah Khan wrote:
Here are the know kselftest issues on Linux 5.4 with
top commit commit 619e17cf75dd58905aa67ccd494a6ba5f19d6cc6
on x86_64:

The goal is to get these addressed before 5.4 comes out.

All of these issues are now fixed, except the bpf llvm dependency.
These fixes should all be in linux-next if they haven't already.


3 build failures and status:

pidfd - undefined reference to `pthread_create' collect2: error: ld returned 1 exit status

Fixed: https://patchwork.kernel.org/patch/11159517/

In

bfp (two issues)

1. "make TARGETS=bpf kselftest" build fails
Makefile:127: tools/build/Makefile.include: No such file or directory

https://patchwork.kernel.org/patch/11163601/
In bpf fixes tree


This is due to recent kbuild changes and I have a patch ready to send.

2. Related to llvm latest version dependency. This is a hard dependency.
Unless users upgrade to latest llvvm, bpf test won't run. The new llvm
might not be supported on all distros yet, in which case bpf will not
get tested in some rings and on some architectures.

gpio

"make TARGETS=gpio kselftest" build fails

Makefile:23: tools/build/Makefile.include: No such file or directory

https://patchwork.kernel.org/patch/11163603/


This is due to recent kbuild changes and I have a patch ready to send.

kvm

"make TARGETS=kvm kselftest" build fails due --no-pie flags.

https://patchwork.kernel.org/patch/11171893/

I haven't found any new ones on x86_64 as of 5.4-rc1

thanks,
-- Shuah