Re: [linux-yocto] [PATCH] tracing/x86: Save CR2 before tracing irqsoff on error_entry

On 4/24/19 8:34 PM, Bruce Ashfield wrote: > > > On Wed, Apr 24, 2019 at 3:47 AM He Zhe > wrote: > > This is for standard/base and all sub-level branches. For explanation, > see the > bottom of the commit log I append. > > > Which kernel versions ? I didn't

[linux-yocto] [PATCH] tracing/x86: Save CR2 before tracing irqsoff on error_entry

From: "Steven Rostedt (VMware)" He Zhe reported a crash by enabling trace events and selecting "userstacktrace" which will read the stack of userspace for every trace event recorded. Zhe narrowed it down to: c3bc8fd637a9 ("tracing: Centralize preemptirq tracepoints and unify their usage")