Messages in this thread | | | From | Will Deacon <> | Subject | Re: [PATCH] drivers/perf: Prevent forced unbinding of PMU drivers | Date | Fri, 17 Jul 2020 11:43:42 +0100 |
| |
On Fri, 17 Jul 2020 16:49:23 +0800, Qi Liu wrote: > Forcefully unbinding PMU drivers during perf sampling will lead to > a kernel panic, because the perf upper-layer framework call a NULL > pointer in this situation. > > To solve this issue, "suppress_bind_attrs" should be set to true, so > that bind/unbind can be disabled via sysfs and prevent unbinding PMU > drivers during perf sampling.
Applied to arm64 (for-next/fixes), thanks!
[1/1] drivers/perf: Prevent forced unbinding of PMU drivers https://git.kernel.org/arm64/c/f32ed8eb0e3f
Cheers, -- Will
https://fixes.arm64.dev https://next.arm64.dev https://will.arm64.dev
| |