Re: [PATCH 1/2] arm64: uprobe: Return EOPNOTSUPP for AARCH32 instruction probing

[Will Deacon]

On Tue, 23 Feb 2021 16:25:34 +0800, He Zhe wrote:
> As stated in linux/errno.h, ENOTSUPP should never be seen by user programs.
> When we set up uprobe with 32-bit perf and arm64 kernel, we would see the
> following vague error without useful hint.
> 
> The sys_perf_event_open() syscall returned with 524 (INTERNAL ERROR:
> strerror_r(524, [buf], 128)=22)
> 
> [...]

Applied first patch only to arm64 (for-next/fixes), thanks!

[1/2] arm64: uprobe: Return EOPNOTSUPP for AARCH32 instruction probing
      https://git.kernel.org/arm64/c/d47422d953e2

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev