Date: Mon, 17 Oct 2005 15:20:50 -0400 From: Kris Kennaway <kris@obsecurity.org> To: Toomas Aas <toomas.aas@raad.tartu.ee> Cc: questions@freebsd.org, Kris Kennaway <kris@obsecurity.org> Subject: Re: GIANT lock in 5.4 Message-ID: <20051017192050.GA10875@xor.obsecurity.org> In-Reply-To: <4353F74B.2090403@raad.tartu.ee> References: <4353ED68.5010500@raad.tartu.ee> <20051017185543.GA94092@xor.obsecurity.org> <4353F74B.2090403@raad.tartu.ee>
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--gBBFr7Ir9EOA20Yy Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Oct 17, 2005 at 10:11:07PM +0300, Toomas Aas wrote: > Kris Kennaway wrote: >=20 > >On Mon, Oct 17, 2005 at 09:28:56PM +0300, Toomas Aas wrote: > > > >>Hello! >=20 > ... >=20 > >>With FreeBSD 5.3, several devices (for example: ips, ahc,=20 > >>atkbd) had a note similar to this in dmesg: > >> > >>ips0: <IBM ServeRAID Adapter> port 0x2000-0x20ff mem =09 > >> 0xfeb00000-0xfebfffff irq 9 at device 1.0 on pci0 > >>ips0: [GIANT-LOCKED] > >> > >>With FreeBSD 5.4, the [GIANT-LOCKED] message no longer appears. > >> > >>Does that mean that Giant lock has been removed from all those drivers,= =20 > >>or is the message simply not printed? > > > >Do you still see it on some other drivers? If so, the former. >=20 > grep -i giant /var/run/dmesg.boot comes up blank on all my FreeBSD 5.4=20 > machines: the two RELENG_5_4 servers I've just upgraded and my home=20 > RELENG_5 box. The message was surpressed, then. It did generate a lot of confusion from users who didn't realise that "Giant locked" was the state of the *entire kernel* in 4.x and thought that this was a regression in 5.x. Kris --gBBFr7Ir9EOA20Yy Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.2 (FreeBSD) iD8DBQFDU/mSWry0BWjoQKURAgUEAKCkR7CV02K4CJ+7stI8tYXZX1NieQCgzgl+ ESpd8YarFVywbeA8k+So1Gw= =ZD7Q -----END PGP SIGNATURE----- --gBBFr7Ir9EOA20Yy--
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