Re: perf synthesized mmap timeouts

2018-10-29 Thread Liang, Kan
On 10/28/2018 12:41 AM, David Miller wrote: If I understand the commit message for: commit 8cc42de736b617827a4e7664fb8d7a325bc125bc Author: Kan Liang Date: Thu Jan 18 13:26:32 2018 -0800 perf top: Check the latency of perf_top__mmap_read() properly, the problem is that a malicious

perf synthesized mmap timeouts

2018-10-27 Thread David Miller
If I understand the commit message for: commit 8cc42de736b617827a4e7664fb8d7a325bc125bc Author: Kan Liang Date: Thu Jan 18 13:26:32 2018 -0800 perf top: Check the latency of perf_top__mmap_read() properly, the problem is that a malicious or out of control app can be doing endless mmaps