Date: Fri, 11 Nov 2016 00:40:55 -0800 From: Mark Millard <markmi@dsl-only.net> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org>, FreeBSD Current <freebsd-current@freebsd.org> Subject: FYI: head (12-CURRENT) -r308247 on old 466 MHzPowerMac G4 (1 processor/1 core): taskqgroup_adjust failed cnt: 1 stride: 1 mp_ncpus: 1 smp_started: 0 Message-ID: <D5ADB86E-F229-40DA-A700-C3717244CE39@dsl-only.net>
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When using head -r308247 to boot an old PowerMac G4 466 MHz (single = processor/single core) there are two "taskqgroup_adjust failed cnt" = messages: > # dmesg > Copyright (c) 1992-2016 The FreeBSD Project. > Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, = 1994 > The Regents of the University of California. All rights = reserved. > FreeBSD is a registered trademark of The FreeBSD Foundation. > FreeBSD 12.0-CURRENT #0 r308247M: Thu Nov 3 11:39:11 PDT 2016 > = markmi@FreeBSDx64:/usr/obj/powerpcvtsc_clang_gcc421_kernel/powerpc.powerpc= /usr/src/sys/GENERICvtsc-NODBG powerpc > gcc version 4.2.1 20070831 patched [FreeBSD] > cpu0: Motorola PowerPC 7400 revision 2.9, 466.97 MHz > cpu0: Features 9c000000<PPC32,ALTIVEC,FPU,MMU> > cpu0: HID0 8094c0a4<EMCP,DOZE,DPM,EIEC,ICE,DCE,SGE,BTIC,BHT> > real memory =3D 1588068352 (1514 MB) > avail memory =3D 1530961920 (1460 MB) > . . . > <OWC Mercury Electra 3G SSD 560ABBF0> ATA8-ACS SATA 2.x device > ada0: Serial Number <REPLACED> > ada0: 66.700MB/s transfers (UDMA4, PIO 512bytes) > ada0: 114473MB (234441648 512 byte sectors) > taskqgroup_adjust failed cnt: 1 stride: 1 mp_ncpus: 1 smp_started: 0 > taskqgroup_adjust failed cnt: 1 stride: 1 mp_ncpus: 1 smp_started: 0 > Trying to mount root from ufs:/dev/ufs/FBSDG4Srootfs [rw,noatime]... > gem0: link state changed to DOWN > gem0: link state changed to UP The above is repeatable for the indicated PowerMac, so far always at the = same place in the sequence. The other booted PowerMac's using this SSD have multiple processors (G4 = and G5 examples). None of them has reported such messages so far but = those messages could be unrelated to the processor count for all I = know. This -r308247 build is "stable style" relative to performance choices = for the KERNCONF. And the KERNCONF disables/excludes PS3 and = enables/includes sc (syscons) in addition to the normal vt. I do warn that this is the environment were I experiment with the = problematical-for-powerpc clang/clang++ 3.8.0 for buildworld. Build = kernel is via gcc 4.2.1. The kernel has so-called "red zone" handling = added for signals in order to deal with the clang ABI violations (in the = stack handling). At some point when all the available llvm powerpc-target fixes are in = place I'll switch to the 3.9.0 project if I can. (Similarly for = powerpc64.) =3D=3D=3D Mark Millard markmi at dsl-only.net
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