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SubjectRe: PROBLEMS: computer crash due to overfilling ramfs; iso9660 CD not read correctly
I faced the same problem when I patched 2.4.0test7 with reiserFS
support. On my further correspondence with Alan Cox, he wrote that he is
unwilling to listen about any "bug report for 2.4kernel", arising after
patching kernel with some foreign code...

Any comments?

Archan Paul
devrootp@psynet.net


noodlez@cyber-rights.net wrote:
>
> ----- Begin Hush Signed Message from noodlez@cyber-rights.net -----
>
> hello.
> i just compiled a 2.4.0 kernel from stable sources from ftp.us.kernel.org,
> including reiserfs support from the reiserfs patch (www.namesys.com) .
> anyway, i compiled the ramfs (resizeable ramdisk) feature as a module, loaded
> the module, and mounted a directory and started copying. i kept copying
> files onto it via 'cp' and after each copy, i would check the ram left using
> 'top'. everything was fine until i had 500kb of ram left and i copied a
> 2mb file. total freeze. the only thing that would happen is my keystrokes
> would output to the screen, and i could also use ALT + F? to change terminals.
> i used the reset button and everything was back to normal. i don't know
> why that happened.
> my next problem is with data CD's (iso9660). I had the same problem with
> 2.2.x kernels. after mounting the data CD, it would list fine, but the
> data would be corrupted (BMP and TIFF images would appear with lines through
> them, sometimes not even recognized as images; mp3's would sound like they
> are combined). the solution would be to 'umount' the directory, open the
> cd-rom a little, and close the tray. after 'mount'ing it, hopefully it
> would be fine. if not, just pop the drive open again, etc. until it worked.
> the distribution is slackware 7.1, but most of my software is hand-compiled.
> i read the REPORTING-BUGS file, and here is some of system info ( i hope
> it isn't overkill; i'm sorry if it is):
> 'dmesg' output:
> Linux version 2.4.0 (root@darkstar) (gcc version egcs-2.91.66 19990314/Linux
> (egcs-1.1.2 release)) #1 Tue Jan 9 18:50:51 EST 2001
> BIOS-provided physical RAM map:
> BIOS-e820: 000000000009fc00 @ 0000000000000000 (usable)
> BIOS-e820: 0000000000000400 @ 000000000009fc00 (reserved)
> BIOS-e820: 0000000000020000 @ 00000000000e0000 (reserved)
> BIOS-e820: 0000000001f00000 @ 0000000000100000 (usable)
> BIOS-e820: 0000000000001000 @ 00000000fec00000 (reserved)
> BIOS-e820: 0000000000001000 @ 00000000fee00000 (reserved)
> BIOS-e820: 0000000000020000 @ 00000000fffe0000 (reserved)
> On node 0 totalpages: 8192
> zone(0): 4096 pages.
> zone(1): 4096 pages.
> zone(2): 0 pages.
> Kernel command line: BOOT_IMAGE=new ro root=306
> Initializing CPU#0
> Detected 233.296 MHz processor.
> Console: colour VGA+ 80x30
> Calibrating delay loop... 465.30 BogoMIPS
> Memory: 30236k/32768k available (909k kernel code, 2144k reserved, 288k
> data, 196k init, 0k highmem)
> Dentry-cache hash table entries: 4096 (order: 3, 32768 bytes)
> Buffer-cache hash table entries: 1024 (order: 0, 4096 bytes)
> Page-cache hash table entries: 8192 (order: 3, 32768 bytes)
> Inode-cache hash table entries: 2048 (order: 2, 16384 bytes)
> CPU: Before vendor init, caps: 008001bf 00000000 00000000, vendor = 0
> Intel Pentium with F0 0F bug - workaround enabled.
> CPU: After vendor init, caps: 008001bf 00000000 00000000 00000000
> CPU: After generic, caps: 008001bf 00000000 00000000 00000000
> CPU: Common caps: 008001bf 00000000 00000000 00000000
> CPU: Intel Pentium MMX stepping 03
> Checking 'hlt' instruction... OK.
> POSIX conformance testing by UNIFIX
> PCI: PCI BIOS revision 2.10 entry at 0xfdb11, last bus=0
> PCI: Using configuration type 1
> PCI: Probing PCI hardware
> isapnp: Scanning for Pnp cards...
> isapnp: Calling quirk for 01:00
> isapnp: SB audio device quirk - increasing port range
> isapnp: Card 'Creative ViBRA16X PnP'
> isapnp: 1 Plug & Play card detected total
> Linux NET4.0 for Linux 2.4
> Based upon Swansea University Computer Society NET3.039
> Starting kswapd v1.8
> pty: 256 Unix98 ptys configured
> Uniform Multi-Platform E-IDE driver Revision: 6.31
> ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
> ALI15X3: IDE controller on PCI bus 00 dev 58
> PCI: No IRQ known for interrupt pin A of device 00:0b.0. Please try using
> pci=biosirq.
> ALI15X3: chipset revision 32
> ALI15X3: not 100% native mode: will probe irqs later
> ALI15X3: simplex device: DMA disabled
> ide0: ALI15X3 Bus-Master DMA disabled (BIOS)
> ALI15X3: simplex device: DMA disabled
> ide1: ALI15X3 Bus-Master DMA disabled (BIOS)
> hda: IBM-DTTA-351010, ATA DISK drive
> hdd: CREATIVEDVD-ROM DVD2240E 12/24/97, ATAPI CDROM drive
> ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
> ide1 at 0x170-0x177,0x376 on irq 15
> hda: 19807200 sectors (10141 MB) w/466KiB Cache, CHS=1232/255/63
> Partition check:
> hda: hda1 hda2 hda3 hda4 < hda5 hda6 hda7 hda8 >
> Serial driver version 5.02 (2000-08-09) with MANY_PORTS SHARE_IRQ SERIAL_PCI
> ISAPNP enabled
> ttyS00 at 0x03f8 (irq = 4) is a 16550A
> ttyS01 at 0x02f8 (irq = 3) is a 16550A
> SCSI subsystem driver Revision: 1.00
> scsi0 : AdvanSys SCSI 3.2M: PCI Ultra 240 CDB: IO EC00/F, IRQ 11
> Vendor: YAMAHA Model: CRW8424S Rev: 1.0g
> Type: CD-ROM ANSI SCSI revision: 02
> Vendor: UMAX Model: Astra 2200 Rev: V2.2
> Type: Scanner ANSI SCSI revision: 02
> NET4: Linux TCP/IP 1.0 for NET4.0
> IP Protocols: ICMP, UDP, TCP
> IP: routing cache hash table of 512 buckets, 4Kbytes
> TCP: Hash tables configured (established 2048 bind 2048)
> NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.
> fatfs: bogus cluster size
> reiserfs: checking transaction log (device 03:06) ...
> Using r5 hash to sort names
> reiserfs: using 3.5.x disk format
> ReiserFS version 3.6.25
> VFS: Mounted root (reiserfs filesystem) readonly.
> Freeing unused kernel memory: 196k freed
> Adding Swap: 120448k swap-space (priority -1)
>
> 'lspci -vvv' output:
> 00:00.0 Host bridge: Acer Laboratories Inc. [ALi] M1531 [Aladdin IV] (rev
> b3)
> Subsystem: Acer Laboratories Inc. [ALi] M1531 [Aladdin IV]
> 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
>
> 00:02.0 ISA bridge: Acer Laboratories Inc. [ALi] M1533 PCI to ISA Bridge
> [Aladdin IV] (rev b4)
> 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
>
> 00:04.0 VGA compatible controller: S3 Inc. ViRGE/DX or /GX (rev 01) (prog-
> if 00 [VGA])
> Subsystem: S3 Inc. ViRGE/DX
> 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 (1000ns min, 63750ns max)
> Interrupt: pin A routed to IRQ 0
> Region 0: Memory at ec000000 (32-bit, non-prefetchable) [size=64M]
> Expansion ROM at ebff0000 [disabled] [size=64K]
>
> 00:05.0 Multimedia video controller: Auravision VxP524
> 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
> Interrupt: pin A routed to IRQ 10
> Region 0: Memory at ebe00000 (32-bit, non-prefetchable) [size=1M]
>
> 00:06.0 SCSI storage controller: Advanced System Products, Inc ABP940-U
> / ABP960-U (rev 03)
> Subsystem: Advanced System Products, Inc ASC1300 SCSI Adapter
> 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 (1000ns min, 1000ns max), cache line size 04
> Interrupt: pin A routed to IRQ 11
> Region 0: I/O ports at ec00 [size=256]
> Region 1: Memory at ebfeff00 (32-bit, non-prefetchable) [size=256]
> Expansion ROM at ebfd0000 [disabled] [size=64K]
>
> 00:0b.0 IDE interface: Acer Laboratories Inc. [ALi] M5229 IDE (rev 20) (prog-
> if fa)
> 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 ffa0 [size=16]
>
> ver_linux output:
> -- Versions installed: (if some fields are empty or look
> -- unusual then possibly you have very old versions)
> Linux darkstar 2.4.0 #1 Tue Jan 9 18:50:51 EST 2001 i586 unknown
> Kernel modules 2.3.21
> Gnu C egcs-2.91.66
> Gnu Make 3.79
> Binutils 2.9.1.0.25
> Linux C Library 2.1.3
> Dynamic linker ldd: version 1.9.9
> Procps 2.0.6
> Mount 2.10l
> Net-tools 1.55
> Kbd 0.99
> Sh-utils 2.0
> Modules Loaded
>
> support for advansys card is built into the kernel (i don't use any modules
> from 2.2.17, all are from 2.4.0)
> scsi_mod is built in
> sg is a module
> sr_mod is a module
>
> thank you for your time and I apologize for the length of this e-mail.
>
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