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    Subjectdrm error messages when using agpgart in 2.4.18/2.4.19-rc3(aa3)?
    Date
    [1.] One line summary of the problem:
    [drm:radeon_cp_indirect] *ERROR* process 217 using buffer owned by 0

    [2.] Full description of the problem/report:
    The above mentioned error message appears (few times) in the kernel logs
    whenever XFree86 is restarted. This ONLY happens when I have 'agpgart'
    support compiled in the kernel. Having 'agpgart' support for the AMD chipset
    greatly improves the quality/performance of Tuxracer game :-)

    [3.] Keywords (i.e., modules, networking, kernel):
    The following options are used for compiling the kernel:
    CONFIG_AGP=y
    CONFIG_AGP_AMD=y
    CONFIG_DRM=y
    CONFIG_DRM_NEW=y
    CONFIG_DRM_RADEON=y

    [4.] Kernel version (from /proc/version):
    Linux version 2.4.19-rc3aa3 (hari@debian) (gcc version 2.95.4 20011002
    (Debian prerelease)) #1 Mon Jul 29 21:27:57 EST 2002

    (The same problem is reproduceable in 2.4.18 and 2.4.19-rc3, hence it isn't
    specific to -aa IMHO)

    [5.] Output of Oops.. message (if applicable) with symbolic information
    resolved (see Documentation/oops-tracing.txt)
    None

    [6.] A small shell script or example program which triggers the
    problem (if possible)
    None

    [7.] Environment
    [7.1.] Software (add the output of the ver_linux script here)
    Linux debian 2.4.19-rc3aa3 #1 Mon Jul 29 21:27:57 EST 2002 i686 unknown

    Gnu C 2.95.4
    Gnu make 3.79.1
    util-linux 2.11n
    mount 2.11n
    modutils 2.4.15
    e2fsprogs 1.27
    PPP 2.4.1
    Linux C Library 2.2.5
    Dynamic linker (ldd) 2.2.5
    Procps 2.0.7
    Net-tools 1.60
    Console-tools 0.2.3
    Sh-utils 2.0.11
    Modules Loaded isofs ipt_state ip_conntrack iptable_filter ip_tables
    ppp_deflate ppp_async ppp_generic slhc ide-cd cdrom serial rtc unix

    [7.2.] Processor information (from /proc/cpuinfo):
    processor : 0
    vendor_id : AuthenticAMD
    cpu family : 6
    model : 4
    model name : AMD Athlon(tm) Processor
    stepping : 2
    cpu MHz : 1200.055
    cache size : 256 KB
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 1
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov
    pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow
    bogomips : 2392.06

    [7.3.] Module information (from /proc/modules):
    isofs 17696 1 (autoclean)
    ipt_state 608 36 (autoclean)
    ip_conntrack 13356 1 (autoclean) [ipt_state]
    iptable_filter 1760 1 (autoclean)
    ip_tables 10560 2 [ipt_state iptable_filter]
    ppp_deflate 40160 0 (autoclean)
    ppp_async 6528 1 (autoclean)
    ppp_generic 15660 3 (autoclean) [ppp_deflate ppp_async]
    slhc 4592 1 (autoclean) [ppp_generic]
    ide-cd 27200 1 (autoclean)
    cdrom 28736 0 (autoclean) [ide-cd]
    serial 42400 2 (autoclean)
    rtc 6044 0 (autoclean)
    unix 13604 89 (autoclean)

    [7.4.] Loaded driver and hardware information (/proc/ioports, /proc/iomem)
    /proc/ioports:
    0000-001f : dma1
    0020-003f : pic1
    0040-005f : timer
    0060-006f : keyboard
    0070-007f : rtc
    0080-008f : dma page reg
    00a0-00bf : pic2
    00c0-00df : dma2
    00f0-00ff : fpu
    0170-0177 : ide1
    01f0-01f7 : ide0
    02f8-02ff : serial(set)
    0376-0376 : ide1
    03c0-03df : vga+
    03f6-03f6 : ide0
    03f8-03ff : serial(set)
    0cf8-0cff : PCI conf1
    5000-500f : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
    6000-607f : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
    c000-cfff : PCI Bus #01
    c000-c0ff : ATI Technologies Inc Radeon VE QY
    d000-d003 : Advanced Micro Devices [AMD] AMD-760 [IGD4-1P] System Controller
    d400-d40f : VIA Technologies, Inc. Bus Master IDE
    d400-d407 : ide0
    d408-d40f : ide1
    d800-d81f : VIA Technologies, Inc. UHCI USB
    dc00-dc1f : VIA Technologies, Inc. UHCI USB (#2)
    e000-e01f : Creative Labs SB Live! EMU10k1
    e400-e407 : Creative Labs SB Live! MIDI/Game Port

    /proc/iomem:
    00000000-0009fbff : System RAM
    0009fc00-0009ffff : reserved
    000a0000-000bffff : Video RAM area
    000c0000-000c7fff : Video ROM
    000f0000-000fffff : System ROM
    00100000-1ffeffff : System RAM
    00100000-001e116c : Kernel code
    001e116d-0021a0ff : Kernel data
    1fff0000-1fff2fff : ACPI Non-volatile Storage
    1fff3000-1fffffff : ACPI Tables
    d0000000-d7ffffff : Advanced Micro Devices [AMD] AMD-760 [IGD4-1P] System
    Controller
    d8000000-dfffffff : PCI Bus #01
    d8000000-dfffffff : ATI Technologies Inc Radeon VE QY
    e0000000-e1ffffff : PCI Bus #01
    e1000000-e100ffff : ATI Technologies Inc Radeon VE QY
    e2000000-e2000fff : Advanced Micro Devices [AMD] AMD-760 [IGD4-1P] System
    Controller
    ffff0000-ffffffff : reserved

    [7.5.] PCI information ('lspci -vvv' as root)
    00:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-760 [Irongate] System
    Controller (rev 12)
    Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
    <MAbort+ >SERR- <PERR-
    Latency: 32
    Region 0: Memory at d0000000 (32-bit, prefetchable) [size=128M]
    Region 1: Memory at e2000000 (32-bit, prefetchable) [size=4K]
    Region 2: I/O ports at d000 [disabled] [size=4]
    Capabilities: [a0] AGP version 2.0
    Status: RQ=15 SBA+ 64bit- FW- Rate=x1,x2
    Command: RQ=0 SBA+ AGP+ 64bit- FW- Rate=x1

    00:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-760 [Irongate] AGP
    Bridge (prog-if 00 [Normal decode])
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR+ FastB2B-
    Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
    Latency: 32
    Bus: primary=00, secondary=01, subordinate=01, sec-latency=32
    I/O behind bridge: 0000c000-0000cfff
    Memory behind bridge: e0000000-e1ffffff
    Prefetchable memory behind bridge: d8000000-dfffffff
    BridgeCtl: Parity- SERR+ NoISA+ VGA+ MAbort- >Reset- FastB2B-

    00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev
    40)
    Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping+ SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
    Latency: 0
    Capabilities: [c0] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:07.1 IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 06)
    (prog-if 8a [Master SecP PriP])
    Subsystem: VIA Technologies, Inc. Bus Master IDE
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
    Latency: 32
    Region 4: I/O ports at d400 [size=16]
    Capabilities: [c0] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:07.2 USB Controller: VIA Technologies, Inc. UHCI USB (rev 16) (prog-if 00
    [UHCI])
    Subsystem: Unknown device 0925:1234
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
    Latency: 32, cache line size 08
    Interrupt: pin D routed to IRQ 10
    Region 4: I/O ports at d800 [size=32]
    Capabilities: [80] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:07.3 USB Controller: VIA Technologies, Inc. UHCI USB (rev 16) (prog-if 00
    [UHCI])
    Subsystem: Unknown device 0925:1234
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
    Latency: 32, cache line size 08
    Interrupt: pin D routed to IRQ 10
    Region 4: I/O ports at dc00 [size=32]
    Capabilities: [80] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:07.4 SMBus: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 40)
    Subsystem: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
    Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
    Interrupt: pin ? routed to IRQ 9
    Capabilities: [68] Power Management version 2
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:0c.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 06)
    Subsystem: Creative Labs CT4832 SBLive! Value
    Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
    Latency: 32 (500ns min, 5000ns max)
    Interrupt: pin A routed to IRQ 10
    Region 0: I/O ports at e000 [size=32]
    Capabilities: [dc] Power Management version 1
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    00:0c.1 Input device controller: Creative Labs SB Live! (rev 06)
    Subsystem: Creative Labs Gameport Joystick
    Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
    Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
    Latency: 32
    Region 0: I/O ports at e400 [size=8]
    Capabilities: [dc] Power Management version 1
    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    01:05.0 VGA compatible controller: ATI Technologies Inc Radeon VE QY (prog-if
    00 [VGA])
    Subsystem: Unknown device 1787:0202
    Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping+ SERR- FastB2B-
    Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
    Latency: 32 (2000ns min), cache line size 08
    Interrupt: pin A routed to IRQ 11
    Region 0: Memory at d8000000 (32-bit, prefetchable) [size=128M]
    Region 1: I/O ports at c000 [size=256]
    Region 2: Memory at e1000000 (32-bit, non-prefetchable) [size=64K]
    Expansion ROM at <unassigned> [disabled] [size=128K]
    Capabilities: [58] AGP version 2.0
    Status: RQ=47 SBA+ 64bit- FW- Rate=x1,x2
    Command: RQ=15 SBA+ AGP+ 64bit- FW- Rate=x1
    Capabilities: [50] Power Management version 2
    Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
    Status: D0 PME-Enable- DSel=0 DScale=0 PME-

    [7.6.] SCSI information (from /proc/scsi/scsi)
    None

    [7.7.] Other information that might be relevant to the problem
    (please look in /proc and include all information that you
    think to be relevant):
    None

    [X.] Other notes, patches, fixes, workarounds:
    Using: XFree86 4.1.0 (as in Debian Woody 3.0 r0)
    Using Driver "radeon", under "Device" section in XF86Config-4 file.

    I initially thought I will post it to dri/xfree86 mailing lists, since it
    happens only if I have 'agpgart' support in the kernel, I begin to think
    kernel mailing list may be the appropriate forum. Please correct me if I am
    wrong.

    BTW the process id printed in the error message is of X (the new one, not the
    one that just exited). The system continue to work fine even after the error
    messages.

    Thanks in advance
    Hari
    harisri@bigpond.com
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