lkml.org 
[lkml]   [2021]   [Feb]   [23]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
From
SubjectRe: [PATCH 1/2] arm64: uprobe: Return EOPNOTSUPP for AARCH32 instruction probing
Date
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

\
 
 \ /
  Last update: 2021-02-23 16:32    [W:0.934 / U:0.352 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site