On Fri, Oct 29, 2010 at 09:55:31AM -0700, Pyun YongHyeon wrote: > On Fri, Oct 29, 2010 at 06:15:16AM -0400, Kris Moore wrote: > > > > I'm running into a rather interesting problem here on HEAD with a newer Asus > > EEE PC and the "alc" network driver. The device works great when a > > cable is plugged in, no issues at all. However, if I unplug the ethernet > > and reboot then I get a hard-lock when it tries to bring up the device. > > > > I disabled ifconfig_alc0="DHCP" in rc.conf, and now the system boots > > normally, but just for kicks I tried running "dhclient alc0" on it > > manually, and sure enough it resulted in another system lockup. (No kern > > dump, > > doesn't even get that far) > > > > Here's some information about the system / device, let me know if there > > is any other data / commands I should run and send over. > > > > > > FreeBSD mininova 9.0-CURRENT FreeBSD 9.0-CURRENT #14: Sat Oct 23 13:11:00 > > PDT 2010 > > > > a...@pci0:1:0:0: class=0x020000 card=0x838a1043 chip=0x10621969 > > rev=0xc0 hdr=0x00 > > vendor = 'Attansic (Now owned by Atheros)' > > device = 'Atheros AR8132 PCI-E Fast Ethernet Controller (AR8132)' > > class = network > > subclass = ethernet > > > > > > alc0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500 > > > > options=c3198<VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,TSO4,WOL_MCAST,WOL_MAGIC,VLAN_HWTSO,LINKSTATE> > > ether 20:cf:30:1e:b2:38 > > media: Ethernet autoselect > > > > I was not able to reproduce it with sample board so I'm not sure > what register access could trigger the stuck. Given that there are > some configuration changes in BIOS for better power saving(ASPM) it > could be related with accessing ALC_PM_CFG register. > I also remember some user reported controller couldn't establish > link when system booted without UTP cable plugged in. Not sure this > is also the same issue as sample board does not show the issue. > > Anyway, would you try attached patch?
> Index: sys/dev/alc/if_alc.c > =================================================================== > --- sys/dev/alc/if_alc.c (revision 214514) > +++ sys/dev/alc/if_alc.c (working copy) > @@ -331,8 +331,8 @@ > reg = CSR_READ_4(sc, ALC_MAC_CFG); > reg |= MAC_CFG_TX_ENB | MAC_CFG_RX_ENB; > CSR_WRITE_4(sc, ALC_MAC_CFG, reg); > + alc_aspm(sc, IFM_SUBTYPE(mii->mii_media_active)); > } > - alc_aspm(sc, IFM_SUBTYPE(mii->mii_media_active)); > } > > static void Well, so far with the attached patch, after a couple reboots, and trying to use dhclient, it's still working fine. Also after the initial dhclient times out I get a link status of "status: no carrier" now, which didn't show up before, so thats good too. Thanks for the quick fix, will you put this into HEAD soon? -- Kris Moore PC-BSD Software _______________________________________________ freebsd-net@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
