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Subject: Re: [PATCH] perf: fix panic by disable ftrace on fault.c
To:     Dave Hansen <dave.hansen@intel.com>,
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From:   =?UTF-8?B?546L6LSH?= <yun.wang@linux.alibaba.com>
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Date:   Wed, 15 Sep 2021 15:22:35 +0800
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On 2021/9/15 上午11:27, Dave Hansen wrote:
> On 9/14/21 6:56 PM, 王贇 wrote:
>>>> [   44.134987][    C0]  ? __sanitizer_cov_trace_pc+0x7/0x60
>>>> [   44.135005][    C0]  ? kcov_common_handle+0x30/0x30
>>> Just turning off tracing for the page fault handler is papering over the
>>> problem.  It'll just come back later with a slightly different form.
>>>
>> Cool~ please let me know when you have the proper approach.
> 
> It's an entertaining issue, but I wasn't planning on fixing it myself.
> 

Do you have any suggestion on how should we fix the problem?

I'd like to help fix it, but sounds like all the known working approach
are not acceptable...

Regards,
Michael Wang