PROBLEM: multiple mount of devices possible 2.4.0-test1 - 2.4.0-test13-pre4

From: rkreiner@sbox.tu-graz.ac.at
Date: Sat Dec 23 2000 - 12:20:36 EST

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    1. multiple mount of devices possible 2.4.0-test1 - 2.4.0-test13-pre4

    2. its still possible to mount devices several times.
       IMHO it shouldnt be possible like 2.2.18
       with umount in /proc/mounts is still the real information,
       in /etc/mtab all corresponding mountpoints are deleted.

    3. kernel, filesystem, mount

    4. Linux version 2.4.0-test13-pre4 (root@apollo) (gcc version 2.95.2
    19991024 (release)) #1 SMP Sat Dec 23 17:04:07 CET 2000

    5. none

    6. example
       #!/bin/sh
       mount /dev/hda2 /gate
       mount -t nfs gate:/ /gate
       mount -t nfs gate:/ /gate
       mount /dev/hda2 /mnt

    7.

    7.1
    -- Versions installed: (if some fields are empty or look
    -- unusual then possibly you have very old versions)
    Linux apollo 2.4.0-test13-pre4 #1 SMP Sat Dec 23 17:04:07 CET 2000 i586
    unknown
    Kernel modules 2.3.11
    Gnu C 2.95.2
    Gnu Make 3.79.1
    Binutils 2.9.5.0.24
    Linux C Library x 1 root root 4070406 Jul 30 21:41
    /lib/libc.so.6
    Dynamic linker ldd (GNU libc) 2.1.3
    Procps 2.0.6
    Mount 2.10m
    Net-tools 1.56
    Kbd 0.99
    Sh-utils 2.0
    Modules Loaded

    7.2
    processor : 0
    vendor_id : AuthenticAMD
    cpu family : 5
    model : 8
    model name : AMD-K6(tm) 3D processor
    stepping : 12
    cpu MHz : 400.906
    cache size : 64 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 mce cx8 pge mmx syscall 3dnow k6_mtrr
    bogomips : 799.54

    7.3

    7.4
    0000-001f : dma1
    0020-003f : pic1
    0040-005f : timer
    0060-006f : keyboard
    0080-008f : dma page reg
    00a0-00bf : pic2
    00c0-00df : dma2
    00f0-00ff : fpu
    0170-0177 : ide1
    01f0-01f7 : ide0
    0213-0213 : isapnp read
    02f8-02ff : serial(auto)
    0376-0376 : ide1
    0378-037a : parport0
    03c0-03df : vga+
    03f6-03f6 : ide0
    03f8-03ff : serial(auto)
    0a79-0a79 : isapnp write
    0cf8-0cff : PCI conf1
    5c20-5c3f : Acer Laboratories Inc. [ALi] M7101 PMU
    d000-d00f : Acer Laboratories Inc. [ALi] M5229 IDE
    d400-d43f : Ensoniq ES1371 [AudioPCI-97]
      d400-d43f : es1371
    d800-d8ff : Realtek Semiconductor Co., Ltd. RTL-8139
      d800-d8ff : eth0

    00000000-0009fbff : System RAM
    0009fc00-0009ffff : reserved
    000a0000-000bffff : Video RAM area
    000c0000-000c7fff : Video ROM
    000f0000-000fffff : System ROM
    00100000-07ffbfff : System RAM
      00100000-002ef4af : Kernel code
      002ef4b0-0031193f : Kernel data
    07ffc000-07ffefff : ACPI Tables
    07fff000-07ffffff : ACPI Non-volatile Storage
    de000000-de0000ff : Realtek Semiconductor Co., Ltd. RTL-8139
      de000000-de0000ff : eth0
    df000000-dfffffff : PCI Bus #01
      df000000-df7fffff : Matrox Graphics, Inc. MGA G400 AGP
      df800000-df803fff : Matrox Graphics, Inc. MGA G400 AGP
    e0000000-e3ffffff : Acer Laboratories Inc. [ALi] M1541
    e5f00000-e7ffffff : PCI Bus #01
      e6000000-e7ffffff : Matrox Graphics, Inc. MGA G400 AGP
    ffff0000-ffffffff : reserved

    7.5
    00:00.0 Host bridge: Acer Laboratories Inc. [ALi] M1541 (rev 04)
            Subsystem: Acer Laboratories Inc. [ALi] ALI M1541 Aladdin V/V+ AGP
    System Controller
            Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
            Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort-
    <MAbort+ >SERR- <PERR-
            Latency: 64
            Region 0: Memory at e0000000 (32-bit, non-prefetchable) [size=64M]
            Capabilities: [b0] AGP version 1.0
                    Status: RQ=28 SBA+ 64bit- FW- Rate=x1,x2
                    Command: RQ=0 SBA- AGP- 64bit- FW- Rate=<none>

    00:01.0 PCI bridge: Acer Laboratories Inc. [ALi] M5243 (rev 04) (prog-if
    00 [Normal decode])
            Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
            Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
            Latency: 64
            Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
            I/O behind bridge: 0000e000-0000dfff
            Memory behind bridge: df000000-dfffffff
            Prefetchable memory behind bridge: e5f00000-e7ffffff
            BridgeCtl: Parity- SERR- NoISA- VGA+ MAbort- >Reset- FastB2B-

    00:03.0 Bridge: Acer Laboratories Inc. [ALi] M7101 PMU
            Subsystem: Acer Laboratories Inc. [ALi] ALI M7101 Power Management
    Controller
            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-

    00:07.0 ISA bridge: Acer Laboratories Inc. [ALi] M1533 PCI to ISA Bridge
    [Aladdin IV] (rev c3)
            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

    00:09.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139
    (rev 10)
            Subsystem: Realtek Semiconductor Co., Ltd. RT8139
            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 (8000ns min, 16000ns max)
            Interrupt: pin A routed to IRQ 9
            Region 0: I/O ports at d800 [size=256]
            Region 1: Memory at de000000 (32-bit, non-prefetchable) [size=256]
            Capabilities: [50] Power Management version 2
                    Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=375mA
    PME(D0-,D1+,D2+,D3hot+,D3cold+)
                    Status: D0 PME-Enable+ DSel=0 DScale=0 PME-

    00:0b.0 Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev
    06)
            Subsystem: Ensoniq Creative Sound Blaster AudioPCI64V, AudioPCI128
            Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
    Stepping- SERR- FastB2B-
            Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=slow >TAbort- <TAbort-
    <MAbort- >SERR- <PERR-
            Latency: 32 (3000ns min, 32000ns max)
            Interrupt: pin A routed to IRQ 10
            Region 0: I/O ports at d400 [size=64]
            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-

    00:0f.0 IDE interface: Acer Laboratories Inc. [ALi] M5229 IDE (rev c1)
    (prog-if 8a [Master SecP PriP])
            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, 1000ns max)
            Interrupt: pin A routed to IRQ 0
            Region 4: I/O ports at d000 [size=16]

    01:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP
    (rev 03) (prog-if 00 [VGA])
            Subsystem: Matrox Graphics, Inc. Millennium G400 16Mb SGRAM
            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: 64 (4000ns min, 8000ns max), cache line size 08
            Interrupt: pin A routed to IRQ 11
            Region 0: Memory at e6000000 (32-bit, prefetchable) [size=32M]
            Region 1: Memory at df800000 (32-bit, non-prefetchable) [size=16K]
            Region 2: Memory at df000000 (32-bit, non-prefetchable) [size=8M]
            Expansion ROM at e5ff0000 [disabled] [size=64K]
            Capabilities: [dc] 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-
            Capabilities: [f0] AGP version 2.0
                    Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
                    Command: RQ=31 SBA+ AGP+ 64bit- FW- Rate=x1

    7.6

    7.7
    Mount Version:
    mount: mount-2.10m

    Output of /proc/mounts:
    /dev/root / ext2 rw 0 0
    proc /proc proc rw 0 0
    /dev/hda7 /home ext2 rw 0 0
    /dev/hda9 /data vfat rw 0 0
    /dev/hda8 /datax vfat rw 0 0
    /dev/hda10 /data2 vfat rw 0 0
    /dev/hdb1 /data3 vfat rw 0 0
    /dev/hda3 /win98 vfat rw 0 0
    /dev/hda6 /redhat ext2 rw 0 0
    /dev/hda11 /sicher ext2 ro 0 0
    /dev/hda13 /sicher2 ext2 ro 0 0
    /dev/hdb6 /sicher3 ext2 rw 0 0
    devpts /dev/pts devpts rw 0 0
    /dev/hda2 /gate vfat rw 0 0
    gate:/ /gate nfs rw,v2,rsize=8192,wsize=8192,hard,udp,lock,addr=gate 0 0
    gate:/ /gate nfs rw,v2,rsize=8192,wsize=8192,hard,udp,lock,addr=gate 0 0
    /dev/hda2 /mnt vfat rw 0 0

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    This archive was generated by hypermail 2b29 : Sat Dec 23 2000 - 12:47:16 EST