Date: Thu, 12 Feb 2004 12:11:01 -0500 From: Craig Rodrigues <rodrigc@crodrigues.org> To: freebsd-threads@freebsd.org Cc: scottl@freebsd.org Subject: Re: Should ps -p list threads? Message-ID: <20040212171101.GA72641@crodrigues.org> In-Reply-To: <Pine.GSO.4.10.10402121116210.15084-100000@pcnet5.pcnet.com> References: <402B03B7.1000104@freebsd.org> <Pine.GSO.4.10.10402121116210.15084-100000@pcnet5.pcnet.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, Feb 12, 2004 at 11:16:57AM -0500, Daniel Eischen wrote:
> But 'ps' without -H seems to display KSEs where it shouldn't.
I looked in the source code of ps,
specifically in src/bin/ps/ps.c
If you type just 'ps', this code gets executed in ps.c:
351 if (nuids == 1) {
352 what = KERN_PROC_UID;
353 flag = *uids;
354 }
371 if ((kp = kvm_getprocs(kd, what, flag, &nentries)) == 0 || nentr
ies < 0)
372 errx(1, "%s", kvm_geterr(kd));
If you type 'ps -H', this code gets executed in ps.c:
194 case 'H':
195 showthreads = 1;
196 break;
351 if (nuids == 1) {
352 what = KERN_PROC_UID;
353 flag = *uids;
371 if ((kp = kvm_getprocs(kd, what, flag, &nentries)) == 0 || nentries < 0)
372 errx(1, "%s", kvm_geterr(kd));
So, I am not sure if this is a bug in kvm_getprocs() or in ps.c,
but the result is that if you type ps or ps -H, they
both display KSEs. Probably just typing ps should not display
them.
Any idea what the problem is?
--
Craig Rodrigues
http://crodrigues.org
rodrigc@crodrigues.org
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?20040212171101.GA72641>