Re: CVS commit: src/sys

[Ryota Ozaki <ozaki-r%netbsd.org@localhost>]

On Fri, Apr 19, 2019 at 6:49 PM Kamil Rytarowski <n54%gmx.com@localhost> wrote:
>
> On 19.04.2019 11:41, J. Hannken-Illjes wrote:
> >> On 19. Apr 2019, at 03:52, Ryota Ozaki <ozaki-r%netbsd.org@localhost> wrote:
> >>
> >> Module Name: src
> >> Committed By:        ozaki-r
> >> Date:                Fri Apr 19 01:52:56 UTC 2019
> >>
> >> Modified Files:
> >>      src/sys/kern: kern_lwp.c kern_softint.c subr_psref.c
> >>      src/sys/rump/kern/lib/libsysproxy: sysproxy.c
> >>      src/sys/sys: lwp.h userret.h
> >>
> >> Log Message:
> >> Implement a simple psref leak detector
> >>
> >> It detects leaks by counting up the number of held psref by an LWP and checking
> >> its zeroness at the end of syscalls and softint handlers.  For the counter, a
> >> unused field of struct lwp is reused.
> >
> > For DIAGNOSTIC-only operations LWP specific data
> > (see kern/subr_lwp_specificdata.c) is a better choice.
> >
>
> I wanted to propose the same. An exampe of this is in KCOV.

Thanks.  I'll try it.  (I'll be AFK for the next few days...)

  ozaki-r