Re: iichb0: I2C error
Jason Bacon <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.ppc |
|---|---|
| Message-ID | <[email protected]> |
On 2019-07-14 20:58, Jason Bacon wrote: > On 2019-07-14 19:46, Justin Hibbits wrote: >> On Sat, Jul 13, 2019 at 9:32 AM Jason Bacon <[email protected]> wrote: >>> >>> On my PowerMac G5, I consistently get this error after a cold boot: >>> >>> iichb0: I2C error >>> >>> After a minute or so, the fans ramp up to maximum. >>> >>> The error also consistently goes away after a warm reboot. Nothing more >>> in dmesg: >>> >>> FreeBSD powermacg5.acadix bacon ~ 211: dmesg|grep iichb0 >>> iichb0: <Keywest I2C controller> mem 0xf8001000-0xf8001fff irq 42 on >>> unin0 >>> iicbus0: <OFW I2C bus> on iichb0 >>> iichb0: I2C error >>> iichb0: <Keywest I2C controller> mem 0xf8001000-0xf8001fff irq 42 on >>> unin0 >>> iicbus0: <OFW I2C bus> on iichb0 >>> >>> No more runaway fans. >>> >>> Does this provide any clues about the cause? >> Hi Jason, >> >> How recently did this start occurring? Would you be able to bisect >> the builds from a known-good starting point? >> >> Thanks. >> >> - Justin > I've never run a powerpc system until a few months ago, and this has > always been an issue on the PowerMac. I just recently established the > pattern that it only happens after a cold boot, though. I also have > an iMac G5 that does not exhibit this issue. Both are running > 12.0-RELEASE. If you think it might help, I can try a 13 snapshot at > some point. > > Cheers, > > JB > Cancel that pattern claim. I've now seen it occur after a couple of warm boots as well. If I keep rebooting the problem eventually stops. Always seems to follow I2C error in dmesg, though. Trying to mount root from ufs:/dev/ada0s3 [rw]... SMP: 2 CPUs found; 2 CPUs usable; 1 CPUs woken lo0: link state changed to UP gem0: link state changed to DOWN gem0: link state changed to UP Security policy loaded: MAC/ntpd (mac_ntpd) iichb0: I2C error FreeBSD powermacg5.acadix bacon ~ 835: Fans go nuts after a few minutes. Reboot... Trying to mount root from ufs:/dev/ada0s3 [rw]... SMP: 2 CPUs found; 2 CPUs usable; 1 CPUs woken lo0: link state changed to UP gem0: link state changed to DOWN gem0: link state changed to UP Security policy loaded: MAC/ntpd (mac_ntpd) FreeBSD powermacg5.acadix bacon ~ 835: No fan issues. -- Earth is a beta site. _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-ppc To unsubscribe, send any mail to "[email protected]"