Date: Thu, 30 Oct 2008 08:29:35 +0100 From: Milan Obuch <freebsd-net@dino.sk> To: freebsd-net@freebsd.org Subject: re weird bug Message-ID: <200810300829.35980.freebsd-net@dino.sk>
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Hi, yesterday I csup'ped my 8-current sources on my MSI Wind netbook (again) and tried to build new kernel. There is again a problem with re interface. It just does not work, with following re0: <RealTek 8101E/8102E/8102EL PCIe 10/100baseTX> port 0xc000-0xc0ff mem 0xffd10000-0xffd10fff,0xffd00000-0xffd0ffff irq 16 at device 0.0 on pci1 re0: Chip rev. 0x34800000 re0: MAC rev. 0x00200000 re0: PHY write failed re0: PHY write failed re0: MII without any phy! device_attach: re0 attach returned 6 in dmesg. This happened already some time ago, but I did not investigate it, just reverted to older kernel and later it disappeared. Today I found there is some timing issue or racing condition - when I boot with verbose message logging, it works with expected re0: <RealTek 8101E/8102E/8102EL PCIe 10/100baseTX> port 0xc000-0xc0ff mem 0xffd10000-0xffd10fff,0xffd00000-0xffd0ffff irq 16 at device 0.0 on pci1 re0: Reserved 0x1000 bytes for rid 0x18 type 3 at 0xffd10000 re0: MSI count : 1 re0: Chip rev. 0x34800000 re0: MAC rev. 0x00200000 miibus0: <MII bus> on re0 rlphy0: <RTL8201L 10/100 media interface> PHY 1 on miibus0 rlphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto re0: bpf attached re0: Ethernet address: 00:1d:92:59:f5:8b re0: [MPSAFE] re0: [FILTER] So I think some issue could be in miibus or rlphy code. I am using stripped down kernel with no interfaces, I kldload if_re (and miibus as dependency), if that matters. Has anybody an idea or patch to test? Something similar appeared recently on list, but I would like to get issue commented first (maybe with a pointer to patch). Regards, Milan
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