Soren, On my powerpc machine I run into the following infinite recursion with the latest ATA code: : firewire0: 2 nodes, maxhop <= 1, cable IRM = 1 (me) firewire0: bus manager 1 (me) [thread pid 11 tid 100026 ] Stopped at 0x253480: stwu r1, r1, -0x10 db> bt Tracing pid 11 tid 100026 td 0xc77840 0xdc180028: at ata_promise_tx2_status+0x7c 0xdc180048: at ata_promise_tx2_status+0x7c 0xdc180068: at ata_promise_tx2_status+0x7c 0xdc180088: at ata_promise_tx2_status+0x7c 0xdc1800a8: at ata_promise_tx2_status+0x7c 0xdc1800c8: at ata_promise_tx2_status+0x7c : 0xdc183c88: at ata_promise_tx2_status+0x7c 0xdc183ca8: at ata_promise_tx2_status+0x7c 0xdc183cc8: at ata_promise_tx2_status+0x7c 0xdc183ce8: at ata_promise_tx2_status+0x7c 0xdc183d08: at ata_interrupt+0x54 0xdc183d28: at ata_generic_intr+0x4c 0xdc183d48: at ithread_loop+0x220 0xdc183da8: at fork_exit+0xb4 0xdc183dc8: at fork_trampoline+0xc db> Previously ata_promise_tx2_status() called ata_pci_status(), but now it dereferences ch->hw.status(), which is itself. Is this a known issue? The boot log of the previous kernel follows: 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 #2: Thu Apr 10 18:24:08 PDT 2008 marcel_at_xserve.xcllnt.net:/usr/obj/nfs/freebsd/8.x/src/sys/XSERVE WARNING: WITNESS option enabled, expect reduced performance. cpu0: Motorola PowerPC 7455 revision 2.1, 1000.00 MHz cpu0: HID0 8450c0bc<EMCP,TBEN,NAP,DPM,ICE,DCE,SGE,BTIC,LRSTK,FOLD,BHT> real memory = 527376384 (502 MB) avail memory = 510140416 (486 MB) nexus0: <Open Firmware Nexus device> unin0: <Apple UniNorth System Controller> on nexus0 unin0: Version 36 pcib0: <Apple UniNorth Host-PCI bridge> on nexus0 pci0: <PCI bus> on pcib0 bge0: <Apple BCM5701 B5, ASIC rev. 0x105> mem 0xa0000000-0xa000ffff irq 48 at device 16.0 on pci0 miibus0: <MII bus> on bge0 brgphy0: <BCM5701 10/100/1000baseTX PHY> PHY 1 on miibus0 brgphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto bge0: Ethernet address: 00:03:93:c0:54:18 bge0: [ITHREAD] pcib1: <Apple UniNorth Host-PCI bridge> on nexus0 pci1: <PCI bus> on pcib1 pcib2: <Open Firmware PCI-PCI bridge> at device 13.0 on pci1 pci2: <PCI bus> on pcib2 macio0: <KeyLargo I/O Controller> mem 0x80000000-0x8007ffff at device 7.0 on pci2 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 22,23 on macio0 scc0: [FILTER] scc0: [FILTER] uart0: <z8530, channel A> on scc0 uart0: [FILTER] uart0: console (57600,n,8,1) uart1: <z8530, channel B> on scc0 uart1: [FILTER] ohci0: <Apple KeyLargo USB controller> mem 0x80081000-0x80081fff irq 27 at device 8.0 on pci2 ohci0: [GIANT-LOCKED] ohci0: [ITHREAD] usb0: OHCI version 1.0 usb0: <Apple KeyLargo 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: <Apple KeyLargo USB controller> mem 0x80080000-0x80080fff irq 28 at device 9.0 on pci2 ohci1: [GIANT-LOCKED] ohci1: [ITHREAD] usb1: OHCI version 1.0 usb1: <Apple KeyLargo 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 pcib3: <Open Firmware PCI-PCI bridge> at device 17.0 on pci1 pci3: <PCI bus> on pcib3 pcib1: failed to reserve resource for (null) vgapci0: <VGA-compatible display> port 0x1000-0x10ff mem 0x88000000-0x8fffffff,0x80100000-0x8010ffff irq 52 at device 2.0 on pci3 atapci0: <Promise PDC20270 UDMA100 controller> port 0x1090-0x1097,0x1080-0x1083,0x1070-0x1077,0x1060-0x1063,0x1050-0x105f mem 0x90030000-0x9003ffff irq 58 at device 21.0 on pci1 atapci0: [ITHREAD] ata2: <ATA channel 0> on atapci0 ata2: [ITHREAD] ata3: <ATA channel 1> on atapci0 ata3: [ITHREAD] atapci1: <Promise PDC20270 UDMA100 controller> port 0x1040-0x1047,0x1030-0x1033,0x1020-0x1027,0x1010-0x1013,0x1000-0x100f mem 0x90010000-0x9001ffff irq 63 at device 27.0 on pci1 atapci1: [ITHREAD] ata4: <ATA channel 0> on atapci1 ata4: [ITHREAD] ata5: <ATA channel 1> on atapci1 ata5: [ITHREAD] pcib4: <Apple UniNorth Host-PCI bridge> on nexus0 pci4: <PCI bus> on pcib4 pci4: <unknown> at device 13.0 (no driver attached) fwohci0: <Apple UniNorth> mem 0xf5000000-0xf5000fff irq 40 at device 14.0 on pci4 fwohci0: [FILTER] fwohci0: OHCI version 1.10 (ROM=0) fwohci0: No. of Isochronous channels is 8. fwohci0: EUI64 00:03:93:ff:fe:a8:cc:16 fwohci0: Phy 1394a available S400, 3 ports. fwohci0: Link S400, max_rec 2048 bytes. firewire0: <IEEE1394(FireWire) bus> on fwohci0 sbp0: <SBP-2/SCSI over FireWire> on firewire0 fwohci0: Initiate bus reset fwohci0: BUS reset fwohci0: node_id=0xc800ffc1, gen=2, CYCLEMASTER mode gem0: <Apple UniNorth2 GMAC Ethernet> mem 0xf5200000-0xf53fffff irq 41 at device 15.0 on pci4 miibus1: <MII bus> on gem0 brgphy1: <BCM5754 10/100/1000baseTX PHY> PHY 0 on miibus1 brgphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT, 1000baseT-FDX, auto gem0: 10kB RX FIFO, 4kB TX FIFO gem0: Ethernet address: 00:03:93:a8:cc:16 gem0: [ITHREAD] Timecounter "decrementer" frequency 33229718 Hz quality 0 Timecounters tick every 10.000 msec firewire0: 2 nodes, maxhop <= 1, cable IRM = 1 (me) firewire0: bus manager 1 (me) ad0: 117800MB <IBM IC35L120AVVA07-0 VA6BA52A> at ata2-master UDMA100 ad1: 117800MB <IBM IC35L120AVVA07-0 VA6BA52A> at ata3-master UDMA100 ad2: 58644MB <IBM IC35L060AVVA07-0 VA3BA52A> at ata4-master UDMA100 WARNING: WITNESS option enabled, expect reduced performance. Trying to mount root from ufs:/dev/ad0s3 -- Marcel Moolenaar xcllnt_at_mac.comReceived on Fri Apr 11 2008 - 23:02:47 UTC
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