Date: Sat, 13 Sep 2014 02:12:23 -0700 From: Mark Millard <markmi@dsl-only.net> To: freebsd-ppc@freebsd.org Subject: Same boot SSD: 8GByte PowerMac G5 Dual boots fine; 12GByte and 16GByte PowerMac G5 Quad cores usually hang... Message-ID: <40CEB6E7-2DB3-40ED-AE74-81151348A5E8@dsl-only.net>
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Context: a boot SSD with FreeBSD FBSDG5S1 10.1-PRERELEASE FreeBSD 10.1-PRERELEASE #0 r271243: Mon = Sep 8 06:28:03 UTC 2014 = root@releng1.nyi.freebsd.org:/usr/obj/powerpc.powerpc64/usr/src/sys/GENERI= C64 powerpc moved between PowerMacs. One PowerMac kind has no boot problems. The = other kind frequently ends up hung with a blank screen just before the = Copyright would normally show up: the start of the FreeBSD boot messages = never show up. (The fans eventually speed up.) The working PowerMac is the Dual Processor (single core each) PCI-X = based one: FreeBSD 10.1-PRERELEASE #0 r271243: Mon Sep 8 06:28:03 UTC 2014 = root@releng1.nyi.freebsd.org:/usr/obj/powerpc.powerpc64/usr/src/sys/GENERI= C64 powerpc gcc version 4.2.1 20070831 patched [FreeBSD] VT: running with driver "ofwfb". cpu0: IBM PowerPC 970 revision 2.2, 2000.23 MHz cpu0: Features dc000000<PPC32,PPC64,ALTIVEC,FPU,MMU> cpu0: HID0 511081<NAP,DPM,NHR,TBEN,ENATTN> real memory =3D 8569122816 (8172 MB) avail memory =3D 8148094976 (7770 MB) FreeBSD/SMP: Multiprocessor System Detected: 2 CPUs cpu0: dev=3Dff887e10 (BSP) cpu1: dev=3Dff889150 [ 277.833] (--) RADEON(0): Chipset: "ATI Radeon 9800PRO NH (AGP)" = (ChipID =3D 0x4e48) An example of the frequently failing-boot kind of PowerMac Quad core G5 = PCI-Express context is: FreeBSD 10.1-PRERELEASE #0 r271278: Mon Sep 8 12:40:56 PDT 2014 root@FBSDG5S0:/usr/obj/usr/src/sys/GENERIC64 powerpc gcc version 4.2.1 20070831 patched [FreeBSD] VT: running with driver "ofwfb". cpu0: IBM PowerPC 970MP revision 1.1, 2500.34 MHz cpu0: Features dc000000<PPC32,PPC64,ALTIVEC,FPU,MMU> cpu0: HID0 1511081<DEEPNAP,NAP,DPM,NHR,TBEN,ENATTN> real memory =3D 17152716800 (16358 MB) avail memory =3D 16374759424 (15616 MB) FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs cpu0: dev=3Dff89d680 (BSP) cpu1: dev=3Dff89eb70 cpu2: dev=3Dff89f248 cpu3: dev=3Dff89f920 (The other example I have access to has 12 GBytes of RAM instead. Both = examples behave the same.) [ 3310.669] (--) NV(0): Chipset: "GeForce 7800 GT" Some of the differences are (working context on left of "vs.", failing = on right): PowerPC 970 rev 2.2 vs. PowerPC 970MP rev 1.1 (I.e., two single-core processors vs. two dual-core processors) 8 GBytes RAM vs. 12 or 16 GBytes RAM (and slower vs. faster RAM) ATI Radeon 9800PRO NH (AGP) vs. GeForce 7800 GT clock rate: 2GHz vs. 2.5 GHz PCI-X vs. PCI-Express gem ethernet vs. bge ethernet Whatever the OpenFirmware and such details are for the two kinds of = PowerMacs. Merely having more than 2 GBytes RAM or 4 GBytes RAM is not enough = context for there to be a boot-hang problem. =3D=3D=3D Mark Millard markmi at dsl-only.net
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