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SubjectRe: 2.2.0pre4 hangs while fsck'ing at boot time
Thanks for replying,

Jamie Lokier wrote:
>
> Do you have a VIA chipset on your motherboard?
> If so, make sure CONFIG_IDEDMA_AUTO is *not* set in your kernel config.
>
> Let us know if this fixes your problem.

I indeed have a VIA chipset on my motherboard (Apollo VPX).
I've made a new kernel and it works fine but I don't have DMA now:

| | DMA enabled | DMA disabled |
| VIA support on | hangs | OK |
| VIA support off | hangs | OK |

The hanging seems non-deterministic, it usually
happens after a few hours except for the time it did
when fsck'ing at boot time. It is always doing something
with the disks though.

FYI, here's what hdparm and dmesg said this morning:

=================================================================
% hdparm -i /devhda
/dev/hda:

Model=FUJITSU MPA3043ATU, FwRev=9517, SerialNo=01128293
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=9042/15/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=0(?), BuffSize=0kB, MaxMultSect=32, MultSect=off
DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=0(slow)
CurCHS=531/255/63, CurSects=8544940, LBA=yes, LBAsects=8544940
tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
IORDY=yes, tPIO={min:240,w/IORDY:120}, PIO modes: mode3 mode4

% hdparm -i /dev/hdc
/dev/hda:

Model=FUJITSU MPA3043ATU, FwRev=9517, SerialNo=01128293
Config={ HardSect NotMFM HdSw>15uSec Fixed DTR>10Mbs RotSpdTol>.5% }
RawCHS=9042/15/63, TrkSize=0, SectSize=0, ECCbytes=4
BuffType=0(?), BuffSize=0kB, MaxMultSect=32, MultSect=off
DblWordIO=no, maxPIO=2(fast), DMA=yes, maxDMA=0(slow)
CurCHS=531/255/63, CurSects=8544940, LBA=yes, LBAsects=8544940
tDMA={min:120,rec:120}, DMA modes: mword0 mword1 mword2
IORDY=yes, tPIO={min:240,w/IORDY:120}, PIO modes: mode3 mode4

% dmesg
Linux version 2.2.0-pre5 (root@stimpy) (gcc version 2.7.2.3) #1 Thu Jan 7
22:48:46 CET 1999
Detected 149996963 Hz processor.
Console: colour VGA+ 80x25
Calibrating delay loop... 149.50 BogoMIPS
Memory: 63296k/65536k available (756k kernel code, 408k reserved, 1040k data,
36k init)
Checking if this processor honours the WP bit even in supervisor mode... Ok.
VFS: Diskquotas version dquot_6.4.0 initialized
CPU: Cyrix 6x86MX 2x Core/Bus Clock stepping 04
Checking 386/387 coupling... OK, FPU using exception 16 error reporting.
Checking 'hlt' instruction... OK.
POSIX conformance testing by UNIFIX
PCI: PCI BIOS revision 2.10 entry at 0xfafb0
PCI: Using configuration type 1
PCI: Probing PCI hardware
PCI: 00:38 [1106/0586]: Work around ISA DMA hangs (00)
Activating ISA DMA hang workarounds.
Linux NET4.0 for Linux 2.2
Based upon Swansea University Computer Society NET3.039
NET4: Linux TCP/IP 1.0 for NET4.0
IP Protocols: ICMP, UDP, TCP
Initializing RT netlink socket
Starting kswapd v 1.5
pty: 256 Unix98 ptys configured
Real Time Clock Driver v1.09
Sound initialization started
<Sound Blaster 16 (4.13)> at 0x220 irq 5 dma 1,5
<Sound Blaster 16> at 0x330 irq 5 dma 0
Sound initialization complete
VP_IDE: IDE controller on PCI bus 00 dev 39
VP_IDE: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0x6000-0x6007, BIOS settings: hda:pio, hdb:pio
ide1: BM-DMA at 0x6008-0x600f, BIOS settings: hdc:pio, hdd:pio
hda: FUJITSU MPA3043ATU, ATA DISK drive
hdc: QUANTUM BIGFOOT2550A, ATA DISK drive
hdd: OTI-HERMES, ATAPI CDROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
ide1 at 0x170-0x177,0x376 on irq 15
hda: FUJITSU MPA3043ATU, 4172MB w/0kB Cache, CHS=531/255/63
hdc: QUANTUM BIGFOOT2550A, 2457MB w/87kB Cache, CHS=4994/16/63
Floppy drive(s): fd0 is 1.44M
FDC 0 is an 8272A
scsi : 0 hosts.
scsi : detected total.
Partition check:
hda: hda1 hda2 hda3 hda4
hdc: [PTBL] [624/128/63] hdc1 hdc2 hdc3
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 36k freed
Adding Swap: 64256k swap-space (priority -1)
Adding Swap: 20156k swap-space (priority -2)
EXT2-fs error (device 03:02): ext2_check_inodes_bitmap: Wrong free inodes count
in group 20, stored = 1982, counted = 1981
EXT2-fs error (device 03:02): ext2_check_inodes_bitmap: Wrong free inodes count
in group 30, stored = 1981, counted = 1980
EXT2-fs error (device 03:02): ext2_check_inodes_bitmap: Wrong free inodes count
in super block, stored = 246671, counted = 246669
smc-ultra.c:v2.00 6/6/96 Donald Becker (becker@cesdis.gsfc.nasa.gov)
eth0: SMC EtherEZ at 0x300, 00 00 C0 C8 D0 DF,EEPROM IRQ 11 programmed-I/O mode.
Serial driver version 4.27 with no serial options enabled
ttyS00 at 0x03f8 (irq = 4) is a 16550A
ttyS01 at 0x02f8 (irq = 3) is a 16550A
NET4: Unix domain sockets 1.0 for Linux NET4.0.
hdd: ATAPI 6X CDROM drive, 120kB Cache
Uniform CDROM driver Revision: 2.51
VFS: Disk change detected on device ide1(22,64)
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A
VFS: Disk change detected on device ide1(22,64)
ISO 9660 Extensions: Microsoft Joliet Level 3
ISO 9660 Extensions: RRIP_1991A
Socket destroy delayed (r=0 w=3712)
Socket destroy delayed (r=0 w=256)
VFS: Disk change detected on device ide1(22,64)
ISO 9660 Extensions: Microsoft Joliet Level 3
ISOFS: changing to secondary root
scsi0 : AM53/79C974 PCscsi driver rev. 0.5; host I/O address: 0x6200; irq: 9

scsi : 1 host.
Vendor: IOMEGA Model: ZIP 100 Rev: E.08
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi removable disk sda at scsi0, channel 0, id 6, lun 0
SCSI device sda: hdwr sector= 512 bytes. Sectors= 196608 [96 MB] [0.1 GB]
sda: Write Protect is off
sda: sda4

=====================================================================

BTW. Can someone point me to a good manual about the kernel module
system particularly about the conf.modules file? I read the man
page and it explains the syntax and all but I still don't understand
what in a line like "alias iso9660 isofs" determines the name iso9660.
Who is asking for iso9660 and where can I find all the things it
could ask for?

Hey,
BertJan Bakker

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