Date: Mon, 29 Sep 2014 03:21:58 -0700 From: Mark Millard <markmi@dsl-only.net> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: 10.1-BETA3 and powerpc64/GENERIC64 PowerMac G5 with ATI Radeon X1950 support: broken at boot time now... Message-ID: <E9397AAC-8A06-4C30-8D44-6067BA17069F@dsl-only.net>
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10.1-BETA3 powerpc64/GENERIC64 on PowerMac G5 with a 'Chipset: "ATI = Radeon X1950" (ChipID =3D 0x7240)' card with vt: boot text is only a = couple of pixels high/wide. Unreadable. Repeat the visual pattern across = the screen (across, not down). [Note: This is not an Xorg/xfce4 issue in = any way.] And it appeared to be stopping very early every time so I've no clue = what it was reporting. Context (uname -a taken from a working boot context for the same SSD, = see later): FreeBSD FBSDG5M1 10.1-BETA3 FreeBSD 10.1-BETA3 #28 r272167M: Mon Sep 29 = 02:34:31 PDT 2014 root@FBSDG5M1:/usr/obj/usr/src/sys/GENERIC64 = powerpc Options DDB and GDB added to GENERIC64. WITH_DEBUG_FILES=3D = WITHOUT_CLANG=3D WITH_DEBUG=3D in /etc/make.conf . DDB default script = hack for dumping early-boot crash information. Added db_trace_self() = call executed during first openfirmware_core call with MMU programmed. = (So just before the classic before-copyright hang where OF_peer(0) fails = fairly frequently.) (That is the same context as for the prior 10.1-BETA2 activity. = 10.1-BETA2 did not have this problem for this context.) I tried reverting to using sc in GENERIC64 using the same 5 lines or so = for sc that are in GENERIC. But it got build failure: ps3fb_remap was = missing because ps3_syscons.c was not compiled. That in turn was because sys/conf/files.powerpc listed = "powerpc/ps3/ps3_syscons.c optional ps3 vt" (indicating it was not = needed for syscons builds?). I changed that to = "powerpc/ps3/ps3_syscons.c optional ps3 vt | ps3 sc" and tried again. More such sys/conf/files.powerpc and/or sys/conf/files issues showed up = preventing building for sc. I gave up on being able to build powerpc64/GENERIC64 for sc directly and = rebuilt again with vt (despite the boot results for the Radeon context). (I have a 10.1-BETA2 /boot/kernel.good/kernel to use in a manual unload = then load /boot/kernel.good/kernel then boot sequence from from not = letting the G5 time out and autoboot. 10.1-BETA3's world seems to = tolerate 10.1-BETA2's kernel. Otherwise this would have been a lot = messier to deal with.) A contrasting context that worked okay... GeForce 7800 GT based = powerpc64/GENERIC64 PowerMac G5. In this case the initial variant tried was: no use of WITH_DEBUG_FILES=3D = WITHOUT_CLANG=3D WITH_DEBUG=3D or of source code hacks for = early-boot-crash information. But still adding options DDB and GDB. = So... FreeBSD FBSDG5M0 10.1-BETA3 FreeBSD 10.1-BETA3 #2 r272167M: Mon Sep 29 = 01:24:54 PDT 2014 root@FBSDG5M0:/usr/obj/usr/src/sys/GENERIC64 = powerpc Index: /usr/src/sys/powerpc/conf/GENERIC64 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- /usr/src/sys/powerpc/conf/GENERIC64 (revision 272167) +++ /usr/src/sys/powerpc/conf/GENERIC64 (working copy) @@ -76,6 +76,8 @@ # Debugging support. Always need this: options KDB # Enable kernel debugger = support. options KDB_TRACE # Print a stack trace for a = panic. +options DDB +options GDB =20 # Make an SMP-capable kernel by default options SMP # Symmetric MultiProcessor = Kernel But simply moving the earlier SSD (once rebuilt) from the Radeon = PowerMac G5 (where it failed to display right or boot) to the GeForce = based G5 resulted in normal text and a completed boot. It looks like the problem here is tied to Radeons, or possibly to the = model of Radeon (X1950). I may put back the other NVIDIA GeForce 7800 GT = and not try to involve a PowerMac G5 Radeon in my activities for now. [The before-Copyright crash still happens randomly. None of this is = directly about that issue.] =3D=3D=3D Mark Millard markmi at dsl-only.net
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