Dag-Erling Smorgrav <d...@yes.no> writes: > I'm experiencing serious problems with DMA (even normal DMA, not UDMA) > on recent versions of -STABLE. Here's an excerpt from messages; kernel > #3 is a recent -STABLE (yesterday's sources), while kernel #2 is > 3.2-RELEASE. The config file for both is identical.
A brand new kernel (from the same sources and config, but built in a clean build directory) produces the following: Jul 22 11:29:17 irc /kernel: Copyright (c) 1992-1999 FreeBSD Inc. Jul 22 11:29:17 irc /kernel: Copyright (c) 1982, 1986, 1989, 1991, 1993 Jul 22 11:29:17 irc /kernel: The Regents of the University of California. All rights reserved. Jul 22 11:29:17 irc /kernel: FreeBSD 3.2-STABLE #0: Thu Jul 22 10:54:31 CEST 1999 Jul 22 11:29:17 irc /kernel: r...@xxx.xxxxx.xx:/usr/src/sys/compile/XXXXX Jul 22 11:29:17 irc /kernel: Timecounter "i8254" frequency 1193182 Hz Jul 22 11:29:17 irc /kernel: Timecounter "TSC" frequency 348204679 Hz Jul 22 11:29:17 irc /kernel: CPU: Pentium II/Xeon/Celeron (348.20-MHz 686-class CPU) Jul 22 11:29:17 irc /kernel: Origin = "GenuineIntel" Id = 0x652 Stepping = 2 Jul 22 11:29:17 irc /kernel: Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR> Jul 22 11:29:17 irc /kernel: real memory = 134217728 (131072K bytes) Jul 22 11:29:17 irc /kernel: avail memory = 127774720 (124780K bytes) Jul 22 11:29:17 irc /kernel: Preloaded elf kernel "kernel" at 0xc023c000. Jul 22 11:29:17 irc /kernel: Probing for devices on PCI bus 0: Jul 22 11:29:17 irc /kernel: chip0: <Intel 82443BX host to PCI bridge> rev 0x02 on pci0.0.0 Jul 22 11:29:17 irc /kernel: chip1: <Intel 82443BX host to AGP bridge> rev 0x02 on pci0.1.0 Jul 22 11:29:17 irc /kernel: xl0: <3Com 3c905-TX Fast Etherlink XL> rev 0x00 int a irq 11 on pci0.13.0 Jul 22 11:29:17 irc /kernel: xl0: Ethernet address: 00:60:08:e8:6b:1d Jul 22 11:29:17 irc /kernel: xl0: autoneg complete, link status good (full-duplex, 100Mbps) Jul 22 11:29:17 irc /kernel: chip2: <Intel 82371AB PCI to ISA bridge> rev 0x02 on pci0.20.0 Jul 22 11:29:17 irc /kernel: ide_pci0: <Intel PIIX4 Bus-master IDE controller> rev 0x01 on pci0.20.1 Jul 22 11:29:17 irc /kernel: chip3: <Intel 82371AB Power management controller> rev 0x02 on pci0.20.3 Jul 22 11:29:17 irc /kernel: Probing for devices on PCI bus 1: Jul 22 11:29:17 irc /kernel: vga0: <ATI model 4742 graphics accelerator> rev 0x5c int a irq 11 on pci1.0.0 Jul 22 11:29:17 irc /kernel: Probing for PnP devices: Jul 22 11:29:17 irc /kernel: Probing for devices on the ISA bus: Jul 22 11:29:17 irc /kernel: sc0 on isa Jul 22 11:29:17 irc /kernel: sc0: VGA color <16 virtual consoles, flags=0x0> Jul 22 11:29:17 irc /kernel: atkbdc0 at 0x60-0x6f on motherboard Jul 22 11:29:17 irc /kernel: atkbd0 irq 1 on isa Jul 22 11:29:17 irc /kernel: fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa Jul 22 11:29:17 irc /kernel: fdc0: FIFO enabled, 8 bytes threshold Jul 22 11:29:17 irc /kernel: fd0: 1.44MB 3.5in Jul 22 11:29:17 irc /kernel: wdc0 at 0x1f0-0x1f7 irq 14 flags 0xa0ffa0ff on isa Jul 22 11:29:17 irc /kernel: wdc0: unit 0 (wd0): <Maxtor 90640D4>, DMA, 32-bit, multi-block-16 Jul 22 11:29:17 irc /kernel: wd0: 6149MB (12594960 sectors), 13328 cyls, 15 heads, 63 S/T, 512 B/S Jul 22 11:29:17 irc /kernel: wdc1 at 0x170-0x177 irq 15 flags 0xa0ffa0ff on isa Jul 22 11:29:17 irc /kernel: wdc1: unit 0 (atapi): <CD-ROM CDU611-Q/2.0c>, removable, accel, dma, iordis Jul 22 11:29:17 irc /kernel: acd0: drive speed 1723KB/sec, 256KB cache Jul 22 11:29:17 irc /kernel: acd0: supported read types: CD-R, CD-RW, CD-DA Jul 22 11:29:17 irc /kernel: acd0: Audio: play, 16 volume levels Jul 22 11:29:17 irc /kernel: acd0: Mechanism: ejectable tray Jul 22 11:29:17 irc /kernel: acd0: Medium: no/blank disc inside, unlocked Jul 22 11:29:17 irc /kernel: npx0 on motherboard Jul 22 11:29:17 irc /kernel: npx0: INT 16 interface Jul 22 11:29:17 irc /kernel: vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa Jul 22 11:29:17 irc /kernel: IP packet filtering initialized, divert disabled, rule-based forwarding disabled, unlimited logging Jul 22 11:29:17 irc /kernel: DUMMYNET initialized (990504) Jul 22 11:29:17 irc /kernel: changing root device to wd0s1a Jul 22 11:29:17 irc /kernel: wd0: DMA failure, DMA status 5<active> Jul 22 11:29:17 irc last message repeated 17 times Jul 22 11:29:17 irc /kernel: wd0: DMA failure, DMA status 7<error,active> Jul 22 11:29:17 irc /kernel: Jul 22 11:29:17 irc /kernel: Jul 22 11:29:17 irc /kernel: Fatal trap 12: page fault while in kernel mode Jul 22 11:29:17 irc /kernel: fault virtual address = 0x44 Jul 22 11:29:17 irc /kernel: fault code = supervisor read, page not present Jul 22 11:29:17 irc /kernel: instruction pointer = 0x8:0xc01813ca Jul 22 11:29:17 irc /kernel: stack pointer = 0x10:0xc9599b84 Jul 22 11:29:17 irc /kernel: frame pointer = 0x10:0xc9599bf4 Jul 22 11:29:17 irc /kernel: code segment = base 0x0, limit 0xfffff, type 0x1b Jul 22 11:29:17 irc /kernel: = DPL 0, pres 1, def32 1, gran 1 Jul 22 11:29:17 irc /kernel: processor eflags = interrupt enabled, resume, IOPL = 0 Jul 22 11:29:17 irc /kernel: current process = 5 (sh) Jul 22 11:29:17 irc /kernel: interrupt mask = Jul 22 11:29:17 irc /kernel: trap number = 12 Jul 22 11:29:17 irc /kernel: panic: page fault Jul 22 11:29:17 irc /kernel: Jul 22 11:29:17 irc /kernel: DES -- Dag-Erling Smorgrav - d...@yes.no To Unsubscribe: send mail to majord...@freebsd.org with "unsubscribe freebsd-hackers" in the body of the message
