devel/google-perftools in a jail

[Andrea Venturoli]

On 4/2/21 9:13 PM, yuri at FreeBSD.org wrote:
> On 4/2/21 4:56 AM, Andrea Venturoli wrote:
>>> Is the string '/usr/jails/' present in prof.out?
>>
>> Yes. 
> 
> 
> Was the profiling session run on the same system/in the same jail?

Yes.
All is happening *inside* the jail



> Did these files exist right after the profiling session?

No (again, not in the jail POV).

I think perftools-pprof queries for a given library and, instead of the 
path in the jail's filesystem space, somehow gets the same file but in 
the host's filesystem space.
I don't know how it tries to get these, though.



> Profiling session and display session should run on exactly same 
> system/same jail.

That's what I'm doing.



> Besides, even when run in jail, jail paths aren't visible to regular 
> executables because jail runs in chroot environment.

s/aren't visible/shouldn't be visible/
!!!



> This error should be impossible - something really weird occurred.

Never mind; I've moved to another tool meanwhile.
If you want me to open a bug report for the record, just ask.

  bye & Thanks
	av.