head -r365932 on PowerMac G5 (2 dual-core sockets): Crashes before login prompt if powerd is enabled in /etc/rc.conf
Mark Millard via freebsd-ppc <[email protected]>
| Newsgroups | gmane.os.freebsd.devel.ppc |
|---|---|
| Message-ID | <[email protected]> |
This was discovered while doing a head -r363590 -> -r365932 upgrade to FreeBSD. (A non-debug system context.) It first showed up only having updated the kernel. It still shows up after updating world as well. It is now running: # uname -apKU FreeBSD FBSDG5L2 13.0-CURRENT FreeBSD 13.0-CURRENT #16 r365932M: Sun Sep 20 19:57:07 PDT 2020 root@FBSDFHUGE:/usr/obj/powerpc64vtsc_clang/powerpc.powerpc64/usr/src/powerpc.powerpc64/sys/GENERIC64vtsc-NODBG powerpc powerpc64 1300115 1300115 but with /etc/rc.conf having powerd disabled: #powerd_enable="YES" The crash now is now silent, not getting to the db> prompt and not showing any messages or backtrace. Prior to world being updated it crashed with a traceback. A quick summary from a camera picture: fatal kernel trap: . . . pid = 1126, comm = powerd . . . kernel PGM trap by 0: . . . at pcr_get+0x4c at CPUFREQ_DRV_GET+0x78 at cpufreq_get_frequency+0x20 at cpufreq_get_level+0x2c at cf_get_method+0x20c at CPUFREQ_GET+0x78 at cpufreq_curr_sysctl+0x70 at sysctl_root_handler_locked+0x10c at sysctl_root+0x26c at userland_sysctl+0x14c at sys___sysctl+0x8c at syscallenter+0x188 at syscall+0x60 at trap+0x498 at powerpc_interrrupt+0x110 user SC trap . . . After this I tried to make a dump and then proceeded with disabling powerd in /etc/rc.conf and doing the world update. Unfortunately, while a dump was written, the core.txt file from the -r365932 world boot that processed the dump reported "invalid corefile" all over the place. With powerpd disabled the G5 seems to be operational. But turning powerd back on in /etc/rc.conf and rebooting prevents the boot from completing, no messages, no db> prompt. So I now leave powerd disabled. === Mark Millard marklmi at yahoo.com ( dsl-only.net went away in early 2018-Mar) _______________________________________________ [email protected] mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-ppc To unsubscribe, send any mail to "[email protected]"