Date: Tue, 23 Sep 2008 19:28:46 +0200 From: "Marco Trillo" <marcotrillo@gmail.com> To: freebsd-ppc@freebsd.org Subject: Re: 8.0-current 200809 snapshot CD boot problem Message-ID: <b9c23c9f0809231028j3d20b1bcgc8f4aaec15fe23d2@mail.gmail.com> In-Reply-To: <b9c23c9f0809230952n159c3179t90b6a542eaf94a4f@mail.gmail.com> References: <b9c23c9f0809230355y26d463c4s5a60a22293daa05d@mail.gmail.com> <b9c23c9f0809230952n159c3179t90b6a542eaf94a4f@mail.gmail.com>
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Hi,
On Tue, Sep 23, 2008 at 6:52 PM, Marco Trillo <marcotrillo@gmail.com> wrote:
> On Tue, Sep 23, 2008 at 12:55 PM, Marco Trillo <marcotrillo@gmail.com> wrote:
>> I tried booting the latest 200809 snapshot CD, from Sep 10,
>> (8.0-CURRENT-200809-powerpc-bootonly.iso), on a eMac G4 "USB 2.0"
>> (PowerMac6,4). It fails with an "invalid memory access":
>>
>> Booting [/boot/kernel/kernel] ...
>> Kernel entry at 0x100100 ...
>>
>> Invalid memory access at %SRR0: 00100100 %SRR1: 10003030
>>
>> ok
>> 0>
>
> I compiled a -current kernel from the 7.1_BETA installation and tried
> to boot it (from the hard disk), but the same error occurs. The
> 7.1_BETA kernel always boots fine.
Well, I finally have a working 8.0-current kernel! :-) But something
weird is going on here:
I noticed a difference in the kernel __start address between the
working 7.0_BETA kernel (kernel.old) and the broken 8.0-current kernel
(kernel):
./boot/kernel.old/kernel: file format elf32-powerpc
Disassembly of section .text:
0013d3c0 <__start>:
13d3c0: 39 00 00 00 li r8,0
./boot/kernel/kernel: file format elf32-powerpc
Disassembly of section .text:
00100100 <__start>:
100100: 39 00 00 00 li r8,0
I noticed revision 1.8 of src/sys/conf/ldscript.powerpc was related to
this, so I downgraded ldscript.powerpc to revision 1.7 and relinked
the kernel. And it works! No more "invalid memory access"!
I don't know if this is something weird of my setup. Should I file a PR?
The full 8.0-current dmesg is below.
Copyright (c) 1992-2008 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 8.0-CURRENT #1: Tue Sep 23 17:05:10 UTC 2008
mtrillo@emac6:/usr/src/sys/powerpc/compile/GENERIC
WARNING: WITNESS option enabled, expect reduced performance.
cpu0: Motorola PowerPC 7447A revision 1.1, 1250.00 MHz
cpu0: HID0 8450c0bc<EMCP,TBEN,NAP,DPM,ICE,DCE,SGE,BTIC,LRSTK,FOLD,BHT>
real memory = 793313280 (756 MB)
avail memory = 762892288 (727 MB)
kbd0 at kbdmux0
nexus0: <Open Firmware Nexus device>
unin0: <Apple UniNorth System Controller> on nexus0
unin0: Version 210
pcib0: <Apple UniNorth Host-PCI bridge> on nexus0
pci0: <PCI bus> on pcib0
vgapci0: <VGA-compatible display> port 0x400-0x4ff mem
0x98000000-0x9fffffff,0x90000000-0x9000ffff irq 48 at device 16.0 on
pci0
pcib1: <Apple UniNorth Host-PCI bridge> on nexus0
pci1: <PCI bus> on pcib1
macio0: <Intrepid I/O Controller> mem 0x80000000-0x8007ffff at device
23.0 on pci1
openpic0: <OpenPIC Interrupt Controller> mem 0x40000-0x7ffff on macio0
scc0: <Zilog Z8530 dual channel SCC> mem
0x13000-0x13fff,0x8400-0x84ff,0x8500-0x85ff,0x8600-0x86ff,0x8700-0x87ff
irq 22,5,6,23,7,8 on macio0
scc0: [FILTER]
scc0: [FILTER]
uart0: <z8530, channel A> on scc0
uart0: [FILTER]
uart1: <z8530, channel B> on scc0
uart1: [FILTER]
ata0 mem 0x20000-0x20fff,0x8800-0x88ff irq 24,12 on macio0
ata0: [ITHREAD]
ohci0: <OHCI (generic) USB controller> irq 0 at device 24.0 on pci1
ohci0: [GIANT-LOCKED]
ohci0: [ITHREAD]
usb0: OHCI version 1.0, legacy support
usb0: <OHCI (generic) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: <Apple OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 2 ports with 2 removable, self powered
ohci1: <OHCI (generic) USB controller> irq 0 at device 25.0 on pci1
ohci1: [GIANT-LOCKED]
ohci1: [ITHREAD]
usb1: OHCI version 1.0, legacy support
usb1: <OHCI (generic) USB controller> on ohci1
usb1: USB revision 1.0
uhub1: <Apple OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
uhub1: 2 ports with 2 removable, self powered
ohci2: <OHCI (generic) USB controller> mem 0x80083000-0x80083fff irq
29 at device 26.0 on pci1
ohci2: [GIANT-LOCKED]
ohci2: [ITHREAD]
usb2: OHCI version 1.0, legacy support
usb2: <OHCI (generic) USB controller> on ohci2
usb2: USB revision 1.0
uhub2: <Apple OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb2
uhub2: 2 ports with 2 removable, self powered
ohci3: <NEC uPD 9210 USB controller> mem 0x80082000-0x80082fff irq 63
at device 27.0 on pci1
ohci3: [GIANT-LOCKED]
ohci3: [ITHREAD]
usb3: OHCI version 1.0
usb3: <NEC uPD 9210 USB controller> on ohci3
usb3: USB revision 1.0
uhub3: <NEC OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb3
uhub3: 3 ports with 3 removable, self powered
ohci4: <NEC uPD 9210 USB controller> mem 0x80081000-0x80081fff irq 63
at device 27.1 on pci1
ohci4: [GIANT-LOCKED]
ohci4: [ITHREAD]
usb4: OHCI version 1.0
usb4: <NEC uPD 9210 USB controller> on ohci4
usb4: USB revision 1.0
uhub4: <NEC OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb4
uhub4: 2 ports with 2 removable, self powered
ehci0: <NEC uPD 720100 USB 2.0 controller> mem 0x80080000-0x800800ff
irq 63 at device 27.2 on pci1
ehci0: [GIANT-LOCKED]
ehci0: [ITHREAD]
usb5: EHCI version 1.0
usb5: companion controllers, 3 ports each: usb3 usb4
usb5: <NEC uPD 720100 USB 2.0 controller> on ehci0
usb5: USB revision 2.0
uhub5: <NEC EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb5
uhub5: 5 ports with 5 removable, self powered
pcib2: <Apple UniNorth Host-PCI bridge> on nexus0
pci2: <PCI bus> on pcib2
ata1: <Intrepid Kauai ATA Controller> mem 0xf5004000-0xf5007fff irq 39
at device 13.0 on pci2
ata1: [ITHREAD]
fwohci0: <Apple UniNorth> mem 0xf5000000-0xf5000fff irq 40 at device
14.0 on pci2
fwohci0: [FILTER]
fwohci0: OHCI version 1.10 (ROM=0)
fwohci0: No. of Isochronous channels is 8.
fwohci0: EUI64 00:0d:93:ff:fe:57:39:60
fwohci0: Phy 1394a available S400, 2 ports.
fwohci0: Link S400, max_rec 2048 bytes.
firewire0: <IEEE1394(FireWire) bus> on fwohci0
fwe0: <Ethernet over FireWire> on firewire0
if_fwe0: Fake Ethernet address: 02:0d:93:57:39:60
fwe0: Ethernet address: 02:0d:93:57:39:60
sbp0: <SBP-2/SCSI over FireWire> on firewire0
fwohci0: Initiate bus reset
fwohci0: BUS reset
fwohci0: node_id=0xc800ffc0, gen=2, CYCLEMASTER mode
gem0: <Apple UniNorth2 GMAC Ethernet> mem 0xf5200000-0xf53fffff irq 41
at device 15.0 on pci2
miibus0: <MII bus> on gem0
bmtphy0: <BCM5221 10/100baseTX PHY> PHY 0 on miibus0
bmtphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
gem0: 10kB RX FIFO, 4kB TX FIFO
gem0: Ethernet address: 00:0d:93:57:39:60
gem0: [ITHREAD]
sc0: <System console> on nexus0
sc0: Unknown <16 virtual consoles, flags=0x300>
uhub6: <Mitsumi Electric Hub in Apple Extended USB Keyboard, class
9/0, rev 1.10/4.10, addr 2> on uhub3
uhub6: 3 ports with 2 removable, bus powered
ums0: <Logitech Apple Optical USB Mouse, class 0/0, rev 2.00/3.40,
addr 3> on uhub6
ums0: 1 buttons.
ukbd0: <Mitsumi Electric Apple Extended USB Keyboard, class 0/0, rev
1.10/4.10, addr 4> on uhub6
kbd1 at ukbd0
uhid0: <Mitsumi Electric Apple Extended USB Keyboard, class 0/0, rev
1.10/4.10, addr 4> on uhub6
Timecounter "decrementer" frequency 41620997 Hz quality 0
Timecounters tick every 10.000 msec
firewire0: 1 nodes, maxhop <= 0, cable IRM = 0 (me)
firewire0: bus manager 0 (me)
acd0: DVDR <HL-DT-ST RW/DVD GCC-4481B/2.05> at ata0-master BIOSPIO
ad0: 38166MB <Seagate ST340015A 3.01> at ata1-master BIOSPIO
WARNING: WITNESS option enabled, expect reduced performance.
acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x02 ascq=0x00
GEOM_LABEL: Label for provider acd0 is iso9660/CDROM.
acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x02 ascq=0x00
acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x02 ascq=0x00
acd0: FAILURE - READ_BIG MEDIUM ERROR asc=0x02 ascq=0x00
Trying to mount root from ufs:/dev/ad0s4
lock order reversal:
1st 0xe3a000 vfslock (vfslock) @ kern/vfs_subr.c:372
2nd 0xdd9e2c devfs (devfs) @ kern/vfs_lookup.c:432
3rd 0xe39d48 vfslock (vfslock) @ kern/vfs_subr.c:372
KDB: stack backtrace:
0xdebaf848: at kdb_backtrace+0x4c
0xdebaf868: at _witness_debugger+0x3c
0xdebaf888: at witness_checkorder+0x878
0xdebaf8e8: at __lockmgr_args+0x23c
0xdebaf968: at vfs_busy+0x19c
0xdebaf998: at vfs_mount_alloc+0x80
0xdebaf9c8: at vfs_donmount+0xfe0
0xdebafb88: at kernel_mount+0x98
0xdebafbc8: at kernel_vmount+0xdc
0xdebafc18: at vfs_mountroot_try+0x120
0xdebafcd8: at vfs_mountroot+0x424
0xdebafd38: at start_init+0x88
0xdebafd98: at fork_exit+0xf0
0xdebafdc8: at fork_trampoline+0xc
lock order reversal:
1st 0xdd99ec ufs (ufs) @ kern/vfs_subr.c:2051
2nd 0xe3a000 vfslock (vfslock) @ kern/vfs_subr.c:372
KDB: stack backtrace:
0xdebaf8c8: at kdb_backtrace+0x4c
0xdebaf8e8: at _witness_debugger+0x3c
0xdebaf908: at witness_checkorder+0x878
0xdebaf968: at __lockmgr_args+0x23c
0xdebaf9e8: at vfs_busy+0x19c
0xdebafa18: at lookup+0x86c
0xdebafaa8: at namei+0x4a8
0xdebafb38: at kern_unlinkat+0x98
0xdebafbf8: at kern_unlink+0x24
0xdebafc18: at vfs_mountroot_try+0x444
0xdebafcd8: at vfs_mountroot+0x424
0xdebafd38: at start_init+0x88
0xdebafd98: at fork_exit+0xf0
0xdebafdc8: at fork_trampoline+0xc
lock order reversal:
1st 0xc41048 user map (user map) @ vm/vm_map.c:3115
2nd 0xdd97cc ufs (ufs) @ kern/vfs_subr.c:2051
KDB: stack backtrace:
0xdebaf930: at kdb_backtrace+0x4c
0xdebaf950: at _witness_debugger+0x3c
0xdebaf970: at witness_checkorder+0x878
0xdebaf9d0: at __lockmgr_args+0x23c
0xdebafa50: at ffs_lock+0x9c
0xdebafa80: at VOP_LOCK1_APV+0xec
0xdebafaa0: at _vn_lock+0x84
0xdebafaf0: at vget+0xdc
0xdebafb30: at vnode_pager_lock+0x20c
0xdebafb90: at vm_fault+0x218
0xdebafca0: at trap_pfault+0x128
0xdebafce0: at trap+0x1ac
0xdebafda0: at powerpc_interrupt+0x15c
0xdebafdd0: user ISI trap by 0x1815a04: srr1=0x4000d032
r1=0x7fffdee0 cr=0x24000048 xer=0 ctr=0
Thanks!
Marco
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