Date: Thu, 4 Feb 2010 01:12:43 -0600 From: Joe Lin <jlin@maxiscale.com> To: Greg Lewis <glewis@eyesbeyond.com> Cc: "freebsd-java@freebsd.org" <freebsd-java@freebsd.org> Subject: RE: DatagramCahnnel scatter/gather problem on diablo 1.6.0_07-b02 Message-ID: <8B6860326495B2438DCBEA74AA981C7A78B22D0D@MBX01.exg5.exghost.com> In-Reply-To: <20100202053114.GA90683@misty.eyesbeyond.com> References: <8B6860326495B2438DCBEA74AA981C7A78B220E0@MBX01.exg5.exghost.com> <201002011207.57163.pieter@degoeje.nl> <8B6860326495B2438DCBEA74AA981C7A78B22476@MBX01.exg5.exghost.com> <201002020207.30685.pieter@degoeje.nl> <8B6860326495B2438DCBEA74AA981C7A78B224DE@MBX01.exg5.exghost.com> <20100202053114.GA90683@misty.eyesbeyond.com>
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With that line in there it works no problem.
Thanks.
-----Original Message-----
From: Greg Lewis [mailto:glewis@eyesbeyond.com]=20
Sent: Monday, February 01, 2010 9:31 PM
To: Joe Lin
Cc: freebsd-java@freebsd.org; Pieter de Goeje
Subject: Re: DatagramCahnnel scatter/gather problem on diablo 1.6.0_07-b02
On Mon, Feb 01, 2010 at 07:13:56PM -0600, Joe Lin wrote:
> I think that is the problem. As I looked at the code in DatagramDispatche=
r.c:writev0(), these fields only got zeroed out in solaris or linux:
>=20
> m.msg_name =3D NULL;
> m.msg_namelen =3D 0;
> m.msg_iov =3D iov;
> m.msg_iovlen =3D len;
> #ifdef __solaris__
> m.msg_accrights =3D NULL;
> m.msg_accrightslen =3D 0;
> #endif
>=20
> #ifdef __linux__
> m.msg_control =3D NULL;
> m.msg_controllen =3D 0;
> #endif
So, if you make the second #ifdef into
#if defined(__linux__) || defined(_ALLBSD_SOURCE)
what happens?
> -----Original Message-----
> From: Pieter de Goeje [mailto:pieter@degoeje.nl]=20
> Sent: Monday, February 01, 2010 5:08 PM
> To: freebsd-java@freebsd.org
> Cc: Joe Lin
> Subject: Re: DatagramCahnnel scatter/gather problem on diablo 1.6.0_07-b0=
2
>=20
> On Monday 01 February 2010 23:42:27 Joe Lin wrote:
> > Did a struss and the error happened with sendmsg call:
> >
> > sendmsg(0x4,0x7fffffbfe580,0x0,0x1,0x2,0x830c17de8) ERR#22 'Invalid
> > argument'
>=20
> The struss output is broken because sendmsg only takes 3 arguments. It se=
ems=20
> that java passes bogus data in msg_flags and possibly msg_control and=20
> msg_controllen fields of struct msghdr:
>=20
> (gdb) p *m
> $4 =3D {msg_name =3D 0x0, msg_namelen =3D 0, msg_iov =3D 0x5dee4e00, msg_=
iovlen =3D 2,=20
> msg_control =3D 0x29012e74, msg_controllen =3D 10480328, msg_flags =3D 74=
0777920}
>=20
>=20
> >
> > -----Original Message-----
> > From: Pieter de Goeje [mailto:pieter@degoeje.nl]
> > Sent: Monday, February 01, 2010 3:08 AM
> > To: freebsd-java@freebsd.org
> > Cc: Joe Lin
> > Subject: Re: DatagramCahnnel scatter/gather problem on diablo 1.6.0_07-=
b02
> >
> > On Monday 01 February 2010 02:08:55 Joe Lin wrote:
> > > Thanks for the reply. I looked at JDK source code and it appears that=
the
> > > JNI call should be in
> > >
> > > J2se/src/solaris/native/sun/nio/ch/DatagramDispatcher.c:write0():
> > >
> > >
> > > There's only linux and solaris #ifdef but not for BSD. I wonder how/w=
hat
> > > BSD is calling. Since I'm getting a "IOException:Invalid argument" so=
I
> > > guess this should correspond to a EINVAL. And a sendmsg() in FreeBSD =
does
> > > not return an EINVAL. So the Diablo port must be calling a writev(). =
But
> > > I could not locate the source code. Wish I can find out what went wro=
ng
> > > with dialblo VM.
> >
> > You could use ktrace/kdump to find out what it (not?) calls and why it
> > dies.
> >
> > - Pieter
> >
> > No virus found in this incoming message.
> > Checked by AVG - www.avg.com
> > Version: 9.0.733 / Virus Database: 271.1.1/2649 - Release Date: 01/30/1=
0
> > 22:39:00 _______________________________________________
> > freebsd-java@freebsd.org mailing list
> > http://lists.freebsd.org/mailman/listinfo/freebsd-java
> > To unsubscribe, send any mail to "freebsd-java-unsubscribe@freebsd.org"
>=20
>=20
>=20
> --=20
> Pieter de Goeje
>=20
> No virus found in this incoming message.
> Checked by AVG - www.avg.com=20
> Version: 9.0.733 / Virus Database: 271.1.1/2649 - Release Date: 01/31/10 =
23:35:00
> _______________________________________________
> freebsd-java@freebsd.org mailing list
> http://lists.freebsd.org/mailman/listinfo/freebsd-java
> To unsubscribe, send any mail to "freebsd-java-unsubscribe@freebsd.org"
--=20
Greg Lewis Email : glewis@eyesbeyond.com
Eyes Beyond Web : http://www.eyesbeyond.com
Information Technology FreeBSD : glewis@FreeBSD.org
No virus found in this incoming message.
Checked by AVG - www.avg.com=20
Version: 9.0.733 / Virus Database: 271.1.1/2649 - Release Date: 01/31/10 23=
:35:00
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