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    SubjectRe: fix for sparc32 dma errors
    Anton Blanchard wrote:

    > Dominik, Thomas I am interested to see if this fixes your problem too.
    > I didn't have dmesg outputs so I couldnt see if you had RAM at > 0x9000000.

    Doesn't help for me. This is pristine 2.3.49 plus your patch plus David Millers
    appletalk rewrite.

    www.ife.ee.ethz.ch/~sailer/System.map-2.3.49 and vmlinuz-2.3.49

    Uncompressing image...
    PROMLIB: obio_ranges 5
    bootmem_init: Scan sp_banks, init_bootmem(spfn[210],epfn[9000])
    free_bootmem: base[0] size[1000000]
    free_bootmem: base[4000000] size[1000000]
    free_bootmem: base[8000000] size[1000000]
    reserve_bootmem: base[0] size[2121ff]
    init_bootmem: return end_pfn[9000]
    Booting Linux...
    mem_init: Calling free_all_bootmem().
    PROMLIB: Sun Boot Prom Version 3 Revision 2
    Linux version 2.3.49 (sailer@casals.ee.ethz.ch) (gcc version egcs-2.91.66 199900
    ARCH: SUN4M
    TYPE: Sun4m SparcStation10/20
    Ethernet address: 8:0:20:19:c9:7c
    Boot time fixup v1.6. 4/Mar/98 Jakub Jelinek (jj@ultra.linux.cz). Patching kernu
    kmem_alloc: NULL ptr (name=unknown)
    kmem_alloc: NULL ptr (name=unknown)
    On node 0 totalpages: 36864
    zone(0): 36864 pages.
    zone(1): 0 pages.
    zone(2): 0 pages.
    Found CPU 0 <node=ffd70140,mid=8>
    Found 1 CPU prom device tree node(s).
    Power off control detected.
    Calibrating delay loop... 84.99 BogoMIPS
    Memory: 42864k available (1208k kernel code, 320k data, 112k init) [f0000000,09]
    Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
    Page-cache hash table entries: 16384 (order: 4, 65536 bytes)
    POSIX conformance testing by UNIFIX
    IOMMU: impl 0 vers 3 page table at f06c0000 of size 262144 bytes
    sbus0: Clock 20.0 MHz
    dma0: Revision 2
    dma1: Revision 2
    Linux NET4.0 for Linux 2.3
    Based upon Swansea University Computer Society NET3.039
    NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
    NET4: Linux TCP/IP 1.0 for NET4.0
    IP Protocols: ICMP, UDP, TCP, IGMP
    IP: routing cache hash table of 512 buckets, 4Kbytes
    TCP: Hash tables configured (established 4096 bind 4096)
    Initializing RT netlink socket
    Starting kswapd v1.6
    Sparc Zilog8530 serial driver version 1.55
    tty00 at 0xffede004 (irq = 44) is a Zilog8530
    tty01 at 0xffede000 (irq = 44) is a Zilog8530
    tty02 at 0xffedb004 (irq = 44) is a Zilog8530
    tty03 at 0xffedb000 (irq = 44) is a Zilog8530
    keyboard: not present
    Console: ttyS0 (Zilog8530)
    pty: 256 Unix98 ptys configured
    Sun Mouse-Systems mouse driver version 1.00
    Floppy drive(s): fd0 is 1.44M
    ioremap: done with statics, switching to malloc
    FDC 0 is a National Semiconductor PC87306
    esp0: IRQ 36 SCSI ID 7 Clk 40MHz CCYC=25000 CCF=8 TOut 167 NCR53C9XF(espfast)
    ESP: Total of 1 ESP hosts found, 1 actually in use.
    scsi0 : Sparc ESP100A-FAST
    scsi : 1 host.
    Vendor: CONNER Model: CP30540 SUN0535 Rev: B0BB
    Type: Direct-Access ANSI SCSI revision: 02
    Detected scsi disk sda at scsi0, channel 0, id 3, lun 0
    scsi : detected 1 SCSI disk total.
    esp0: target 3 [period 100ns offset 15 10.00MHz FAST SCSI-II]
    SCSI device sda: hdwr sector= 512 bytes. Sectors= 1065912 [520 MB] [0.5 GB]
    Partition check:
    sda: sda1 sda2 sda3
    sunlance.c:v2.00 11/Sep/99 Miguel de Icaza (miguel@nuclecu.unam.mx)
    eth0: LANCE 08:00:20:19:c9:7c
    eth0: using auto-carrier-detection.
    VFS: Mounted root (ext2 filesystem) readonly.
    Freeing unused kernel memory: 112k freed
    INIT: version 2.77 booting
    Welcome to Red Hat Linux
    Press 'I' to enter interactive startup.
    Mounting proc filesystem [ OK ]
    Setting clock (utc): Tue Mar 7 19:15:20 CET 2000 [ OK ]
    Loading default keymap/etc/rc.d/rc.sysinit: /dev/tty0: No such device
    [FAILED]
    Activating swap partitions [ OK ]
    Setting hostname casals.ee.ethz.ch [ OK ]
    Setting NIS domain name ife.ee.ethz.ch [ OK ]
    Checking root filesystem
    /dev/sda1: clean, 37541/114240 files, 425264/456640 blocks
    [/sbin/fsck.ext2 -- /] fsck.ext2 -a /dev/sda1
    [ OK ]
    Remounting root filesystem in read-write mode [ OK ]
    Finding module dependencies /lib/modules/2.3.49/fs/fat.o: unresolved symbol(s)
    /lib/modules/2.3.49/block/rd.o: unresolved symbol(s)
    [ OK ]
    Loading sound module
    Watchdog Reset
    Type help for more information

    ok .registers
    %g0 %g1 %g2 %g3 %g4 %g5 %g6 %g7
    0 0 4 0 f003095c 1 f8d9a000 f8d9
    PC nPC Y PSR WIM TBR
    f0011a68 f0011a6c 0 40000fe0 1 f0004090

    ok .locals
    0 1 2 3 4 5 6 7
    IN: f8000548 0 0 f21be000 f417eaf8 f01fe400 f8000508 f0010d64
    LOC: 0 0 f001cec8 1 0 f8d9a000 f8d9a000 f21be000
    OUT: f001f0f4 f800047c f01fe400 f01fe400 f417eaf8 f01fe400 f8000418 f001d184

    PC: f0011a68
    Last leaf: call f001f09c from f001d184
    0 w %o0-%o5: ( f001f0f4 f800047c f01fe400 f01fe400 f417eaf8 f01fe400 )

    call f001cec4 from f0010d64
    1 w %o0-%o5: ( f8000548 0 0 f21be000 f417eaf8 f01fe400 )

    call f001cec4 from f0010d64
    2 w %o0-%o5: ( 0 0 0 f21be000 f417eaf8 f01fe400 )

    call f001f09c from f001d184
    3 w %o0-%o5: ( f001f0f4 f8000664 f01fe400 f01fe400 f417eaf8 f01fe400 )

    call f001cec4 from f0010d64
    4 w %o0-%o5: ( f8000730 0 0 f21be000 f417eaf8 f01fe400 )

    call f001cec4 from f0010d64
    5 w %o0-%o5: ( 0 0 0 f21be000 f417eaf8 f01fe400 )

    call f001f09c from f001d184
    6 w %o0-%o5: ( f001f0f4 f800084c f01fe400 f01fe400 f417eaf8 f01fe400 )

    call f001cec4 from f0010d64
    7 w %o0-%o5: ( f8000918 0 0 f21be000 f417eaf8 f01fe400 )

    call f001cec4 from f0010d64
    8 w %o0-%o5: ( 0 0 0 f21be000 f417eaf8 f01fe400 )

    call f001f09c from f001d184
    9 w %o0-%o5: ( f001f0f4 f8000a34 f01fe400 f01fe400 f417eaf8 f01fe400 )

    call f001cec4 from f0010d64
    a w %o0-%o5: ( f8000b00 0 0 f21be000 f417eaf8 f01fe400 )

    call f001cec4 from f0010d64
    b w %o0-%o5: ( 0 0 0 f21be000 f417eaf8 f01fe400 )

    call f001f09c from f001d184
    c w %o0-%o5: ( f001f0f4 f8000c1c f01fe400 f01fe400 f417eaf8 f01fe400 )

    call f001cec4 from f0010d64
    d w %o0-%o5: ( f8000ce8 0 0 f21be000 f417eaf8 f01fe400 )

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