On Sun, Oct 17, 2021 at 8:46 PM Dongliang Mu wrote:
>
> Hi all,
>
> I am writing to kindly ask one question: is there any tracing
> mechanism in Linux kernel that can trace all the executed instructions
> of a user process? If this user process is run on different
> processors, traces of this
On Mon, 18 Oct 2021 16:41:14 +0800, Dongliang Mu said:
> I want to log all the executed instructions of a user process (e.g.,
> poc.c in syzkaller) in the kernel mode and then would like to leverage
> backward analysis to capture the root cause of kernel panic/crash.
> Therefore, I need the
On 10/18/21 05:45, Dongliang Mu wrote:
Hi all,
I am writing to kindly ask one question: is there any tracing
mechanism in Linux kernel that can trace all the executed instructions
of a user process? If this user process is run on different
processors, traces of this process on different
On Mon, 18 Oct 2021, 11:48 FMDF, wrote:
Now I recall that, by using Perf, somehow I was able to go interactively
> down to the assembly code and see where it was stuck in an endless loop.
>
Ah, yes. The loop was somewhere into glibc. So I'm not sure if it is
possible to see the kernel assembly
On Mon, 18 Oct 2021, 11:18 Dongliang Mu, wrote:
> +Brendan Gregg
>
Good catch!
Take a look at his "System Performance, 2nd ed., ISBN 978-0-13-682015-4.
He has an interesting blog at https://www.brendangregg.com/blog/index.html
As Greg, Pavel, and I said, use GDB if you need it. However I'd
+Brendan Gregg
On Mon, Oct 18, 2021 at 4:41 PM Dongliang Mu wrote:
>
> On Mon, Oct 18, 2021 at 4:07 PM FMDF wrote:
> >
> > On Mon, 18 Oct 2021, 04:46 Dongliang Mu, wrote:
> >>
> >> Hi all,
> >>
> >> I am writing to kindly ask one question: is there any tracing
> >> mechanism in Linux kernel
On Mon, Oct 18, 2021 at 04:41:14PM +0800, Dongliang Mu wrote:
> On Mon, Oct 18, 2021 at 4:07 PM FMDF wrote:
> >
> > On Mon, 18 Oct 2021, 04:46 Dongliang Mu, wrote:
> >>
> >> Hi all,
> >>
> >> I am writing to kindly ask one question: is there any tracing
> >> mechanism in Linux kernel that can
On Mon, Oct 18, 2021 at 4:07 PM FMDF wrote:
>
> On Mon, 18 Oct 2021, 04:46 Dongliang Mu, wrote:
>>
>> Hi all,
>>
>> I am writing to kindly ask one question: is there any tracing
>> mechanism in Linux kernel that can trace all the executed instructions
>> of a user process? If this user process
On Mon, 18 Oct 2021, 04:46 Dongliang Mu, wrote:
> Hi all,
>
> I am writing to kindly ask one question: is there any tracing
> mechanism in Linux kernel that can trace all the executed instructions
> of a user process? If this user process is run on different
> processors, traces of this process
