On Wed, Apr 21, 2021 at 04:04:12PM +0300, Zidenberg, Tsahi wrote:
On 13/04/2021 10:27, Greg KH wrote:
On Mon, Apr 12, 2021 at 10:46:41PM +0300, Zidenberg, Tsahi wrote:
The original bug that I was working on: command line parameters don't appear when snooping execve using bpf on arm64.
Has this ever worked? If not, it's not really a regression that needs to be fixed, just use a newer kernel version, right?
It's not so much a regression between old and new kernels, as it is a regression when changing architectures. The same API works on x86, but not on arm64 (in x86 - you can access userspace with a kernelspace access).
What API are you talking about here?
Different CPU architectures support different things. Some do not support ebpf at all, is that a regression? No.
Multiple Linux distributions support both x86 and arm64, and some of these choose to keep with 5.4 LTS Linux kernel. I think these distributions should expect the same experience across architectures.
Since when has that ever been a requirement of Linux?
That is not a requirement of the stable kernel trees either, please see our very simple set of rules.
still confused as to what you are trying to do here,
greg k-h