Date: Tue, 13 Mar 2007 13:50:34 -0400 From: Kris Kennaway <kris@obsecurity.org> To: James Long <list@museum.rain.com> Cc: freebsd-questions@freebsd.org Subject: Re: dmesg and GIANT-LOCK Message-ID: <20070313175033.GA9609@xor.obsecurity.org> In-Reply-To: <20070313080612.GA19177@ns.umpquanet.com>
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[-- Attachment #1 --] On Tue, Mar 13, 2007 at 01:06:12AM -0700, James Long wrote: > With regard to the recent thread about looking for GIANT-LOCKs in > dmesg, why would one system say: > > ns : 00:56:29 /home/james> uname -v ;dmesg | grep fxp > FreeBSD 6.2-STABLE #0: Tue Feb 20 15:47:09 PST 2007 > fxp0: <Intel 82559 Pro/100 Ethernet> port 0x2400-0x243f mem 0xc4fff000-0xc4ffffff,0xc4e00000-0xc4efffff irq 10 at device 2.0 on pci0 > miibus0: <MII bus> on fxp0 > fxp0: Ethernet address: 00:02:a5:0a:57:73 > > > while a more recent build says: > > t30 : 00:56:19 /home/james> uname -v ;dmesg | grep fxp > FreeBSD 6.2-STABLE #2: Thu Mar 8 08:23:11 PST 2007 > fxp0: <Intel 82801CAM (ICH3) Pro/100 VE Ethernet> port 0x7400-0x743f mem 0xd0200000-0xd0200fff irq 11 at device 8.0 on pci2 > miibus0: <MII bus> on fxp0 > fxp0: Ethernet address: 00:09:6b:86:82:a6 > fxp0: [GIANT-LOCKED] fxp is not giant locked, you can check the source for the INTR_MPSAFE flag in sys/dev/fxp/if_fxp.c. I'm not sure how you are seeing this, please describe the configuration of this system further (kernel config, loader.conf). Kris [-- Attachment #2 --] -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (FreeBSD) iD8DBQFF9uRpWry0BWjoQKURAtpuAKCn+kRaLAH+QzzIPCmGEQ9ISf7kegCg9rPq SFT2ExhAsalcWAPqMPWWd0k= =drIu -----END PGP SIGNATURE-----help
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