Date: Sun, 1 Feb 2015 00:04:38 -0800 From: Mark Millard <markmi@dsl-only.net> To: FreeBSD PowerPC ML <freebsd-ppc@freebsd.org> Subject: RE: HEADS UP: powerpc64 kernel format change [booted a PowerMac G5 quad-core] Message-ID: <2AD25D1A-80C0-473B-BD04-9AA512811AF6@dsl-only.net>
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Just an FYI, not a request for anything. I've booted my powerpc64 11.0-CURRENT -r277990 "GENERIC64vtsc" variant on a PowerMac G5 quad core, but a little oddly. I've also used the new loader to boot 10.1-RELEASE-p5 and 10.1-STABLE (-r277808), 10.1-RELEASE-p5 being a normal boot but 10.1-STABLE also being odd in the same way as 11.0-CURRENT. (The oddity is not new to the -r277990 context.) Before attempting this I'd already adapted my powermac-g5-more-reliable-booting-investigation-hacks to powerpc64 11-CURRENT after the relocatable kernel changes touched ofwcall64.S and I had booted a with-hack 11.0-CURRENT kernel before this. (The recent Justin H. patch for fan/pump RPMs is also present, although the problem powermac is gone.) Like for 10.1-STABLE, for 11-CURRENT (-R277990) the sequence buildworld, buildkernel, installkernel, installworld, reboot failed to boot before getting to the "any other key for a command prompt" stage, although the SRR0 figure was different. %SRR0: 00000000.01c287ac (10.1-STABLE reports 1c277fc) %SRR1: 10000000.00003030 But the same technique that allows me to boot 10.1-STABLE works for 11-CURRENT as well. More below for what I did to have 11-CURRENT kernel+world running despite the above. To make swapping contexts easier I've established copies of the 3 vintages of loader, each copy established just after the matching installworld: $ ls -F /boot/loader /boot/loader1* /boot/loader* /boot/loader10.1S_from_usr_obj* /boot/loader10.1RE* /boot/loader11C* /boot/loader10.1RE_from_usr_obj* /boot/loader11C_from_usr_obj* /boot/loader10.1S* and I copy /boot/loader11C to /boot/loader to test using it for whatever I'm going to boot with it. (I've not tried any that I copied from /usr/obj/... I may just delete those.) "RE" stands for RelEng, "S" for Stable, "C" for Current. Note that 10.1RE here is 10.1-RELEASE-p5 (RELENG -r277807) but with my original powermac-g5-more-reliable-booting-investigation-hacks and the fan/pump RPM patch. (My 10.1-STABLE has those as well.) I also have separate kernel copies (via INSTKERNNAME use): $ ls -Fd /boot/kernel* /boot/kernel/ /boot/kernel10.1RE/ /boot/kernel10.1S/ /boot/kernel11C/ (Ignore /boot/kernel here. I tend to use the other ones.) And I use /boot/loader.conf to control which kernel is initially started, such as: $ more /boot/loader.conf kernel="kernel10.1RE" verbose_loading="YES" kern.vty=vt The kernel10.RE one boots and runs fine with any of the 3 vintages of loader. Listing kernel10.1S or kernel11C in loader.conf instead gets the SRR0/SRR1 failures referenced above, even when loader (and world) is from the matching buildworld. So I boot as above (kernel10.1RE) but use the "any other key for a command prompt" to stop it and then (for example): unload boot kernel11C and that boots and runs fine if I've done the 11-CURRENT installworld before the reboot. (At this point 10.1-RELEASE-p5 and 10.1-STABLE buildworlds (loader updated) do not mix very well with 11-CURRENT kernels. "init: getting kqueues resource limit invalid argument" notices are an example. And I had kernel panics after a while for such combinations. So far the above 11-CURRENT kernel+world combination seems okay despite the boot sequence having a 10.1-RELEASE-p5 kernel variant involved for a bit.) $ freebsd-version -ku; uname -a 10.1-RELEASE-p5 11.0-CURRENT FreeBSD FBSDG5M1 11.0-CURRENT FreeBSD 11.0-CURRENT #0 r277990M: Sat Jan 31 18:27:29 PST 2015 root@FBSDG5M1:/usr/obj/usr/home/markmi/src_11_current/sys/GENERIC64vtsc powerpc Other details controlling how things were built (all 3 are built similarly): $ more /etc/make.conf WRKDIRPREFIX=/usr/obj/portswork WITH_DEBUG= MALLOC_PRODUCTION= $ more /etc/src.conf #WITH_DEBUG_FILES= #WITHOUT_CLANG= (I have separate svn source directory trees for 10.1-RELEASE-p5, 10.1-STABLE (-r277808), and 11.0-CURRENT (-r277990).) $ more ~markmi/src_11_current/sys/powerpc/conf/GENERIC64vtsc include GENERIC64 ident GENERIC64vtsc nooptions PS3 #Sony Playstation 3 HACK!!! to allow sc options DDB # HACK!!! to dump early crash info (but 11.0-CURRENT already has it) options GDB # HACK!!! ... #options KTR #options KTR_MASK=KTR_TRAP #options KTR_CPUMASK=0xF #options KTR_VERBOSE # HACK!!! to allow sc for 2560x1440 display on Radeon X1950 that vt historically mishandled during booting device sc #device kbdmux # HACK: already listed by vt options SC_OFWFB # OFW frame buffer options SC_DFLT_FONT # compile font in makeoptions SC_DFLT_FONT=cp437 # Disable extra checking typically used for FreeBSD 11.0-CURRENT: nooptions DEADLKRES #Enable the deadlock resolver nooptions INVARIANTS #Enable calls of extra sanity checking nooptions INVARIANT_SUPPORT #Extra sanity checks of internal structures, required by INVARIANTS nooptions WITNESS #Enable checks to detect deadlocks and cycles nooptions WITNESS_SKIPSPIN #Don't run witness on spinlocks for speed nooptions MALLOC_DEBUG_MAXZONES # Separate malloc(9) zones (My 10.1-RELEASE-p5 and 10.1-STABLE variants use the same file contents as above.) $ svnlite status ~markmi/src_11_current/ M /home/markmi/src_11_current/sys/ddb/db_main.c M /home/markmi/src_11_current/sys/ddb/db_script.c ? /home/markmi/src_11_current/sys/powerpc/conf/GENERIC64vtsc M /home/markmi/src_11_current/sys/powerpc/ofw/ofw_machdep.c M /home/markmi/src_11_current/sys/powerpc/ofw/ofwcall64.S M /home/markmi/src_11_current/sys/powerpc/powermac/powermac_thermal.c $ svnlite info ~markmi/src_11_current/ Path: /home/markmi/src_11_current Working Copy Root Path: /home/markmi/src_11_current URL: https://svn0.us-west.freebsd.org/base/head Relative URL: ^/head Repository Root: https://svn0.us-west.freebsd.org/base Repository UUID: ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f Revision: 277990 Node Kind: directory Schedule: normal Last Changed Author: nwhitehorn Last Changed Rev: 277990 Last Changed Date: 2015-01-31 11:16:51 -0800 (Sat, 31 Jan 2015) === Mark Millard markmi at dsl-only.nethelp
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