OS: Redhat 7.1
Kernel: 2.4.2-2
Bios EPP: 1.9 (same result with EPP 1.7)
/etc/modules.conf setting:
alias parport_lowlevel parport_pc
alias scsi_hostadaptor ppa
/etc/rc.local setting:
/sbin/modprobe ppa
produces:
Apr 10 12:49:36 localhost kernel: SCSI subsystem driver Revision:
1.00
Apr 10 12:49:36 localhost kernel: ppa: Version 2.07 (for Linux
2.4.x)
Apr 10 12:49:36 localhost kernel: ppa: Found device at ID 6,
Attempting to use EPP 32 bit
Apr 10 12:49:36 localhost kernel: ppa: Communication established
with ID 6 using EPP 32 bit
Apr 10 12:49:36 localhost kernel: scsi0 : Iomega VPI0 (ppa)
interface
Apr 10 12:49:36 localhost kernel: Vendor: IOMEGA Model: ZIP 100
Rev: D.13
Apr 10 12:49:36 localhost kernel: Type: Direct-Access
ANSI SCSI revision: 02
lsmod produces:
Module Size Used by
soundcore 4464 0 (autoclean)
ppa 10016 0 (unused)
scsi_mod 95104 1 [ppa]
parport_pc 17968 2 (autoclean)
lp 5168 0 (autoclean)
parport 25952 2 (autoclean) [ppa parport_pc lp]
autofs 11264 1 (autoclean)
8139too 16480 1 (autoclean)
nls_iso8859-1 2880 2 (autoclean)
nls_cp437 4384 2 (autoclean)
vfat 9392 2 (autoclean)
fat 32672 0 (autoclean) [vfat]
mousedev 4160 1
hid 11776 0 (unused)
input 3488 0 [mousedev hid]
usb-uhci 20720 0 (unused)
usbcore 49664 1 [hid usb-uhci]
That is how things look immediately after Linux boots.
As soon as I begin to use the Zip drive I get a new module loaded called
sd_mod. At this stage everything works fine as expected.
Module Size Used by
sd_mod 11728 0 (autoclean)
soundcore 4464 0 (autoclean)
ppa 10016 0
scsi_mod 95104 2 [sd_mod ppa]
parport_pc 17968 2 (autoclean)
lp 5168 0 (autoclean)
parport 25952 2 (autoclean) [ppa parport_pc lp]
autofs 11264 1 (autoclean)
8139too 16480 1 (autoclean)
nls_iso8859-1 2880 2 (autoclean)
nls_cp437 4384 2 (autoclean)
vfat 9392 2 (autoclean)
fat 32672 0 (autoclean) [vfat]
mousedev 4160 1
hid 11776 0 (unused)
input 3488 0 [mousedev hid]
usb-uhci 20720 0 (unused)
usbcore 49664 1 [hid usb-uhci]
Shortly thereafter sd_mod, soundcore, lp and anything else not being used is
unloaded by /etc/cron.d/kmod. At any time I can print and the lp module
gets loaded correctly but...
when I attempt to reuse the Zip drive sd_mod gets stuck initializing and
/var/log/messages reveals a kernel Oops. Can anyone help me please?
Module Size Used by
sd_mod 11728 1 (initializing)
ppa 10016 0
scsi_mod 95104 1 [sd_mod ppa]
parport_pc 17968 1 (autoclean)
parport 25952 1 (autoclean) [ppa parport_pc]
autofs 11264 1 (autoclean)
8139too 16480 1 (autoclean)
nls_iso8859-1 2880 2 (autoclean)
nls_cp437 4384 2 (autoclean)
vfat 9392 2 (autoclean)
fat 32672 0 (autoclean) [vfat]
mousedev 4160 1
hid 11776 0 (unused)
input 3488 0 [mousedev hid]
usb-uhci 20720 0 (unused)
usbcore 49664 1 [hid usb-uhci]
Apr 10 12:58:35 localhost kernel: Attached scsi removable disk sda at scsi0,
channel 0, id 6, lun 0
Apr 10 12:58:37 localhost kernel: SCSI device sda: 196608 512-byte hdwr
sectors (101 MB)
Apr 10 12:58:37 localhost kernel: sda: Write Protect is off
Apr 10 12:58:37 localhost kernel: sda: sda4
Apr 10 13:03:29 localhost kernel: Attached scsi removable disk sda at scsi0,
channel 0, id 6, lun 0
Apr 10 13:03:29 localhost kernel: SCSI device sda: 196608 512-byte hdwr
sectors (101 MB)
Apr 10 13:03:29 localhost kernel: sda: Write Protect is off
Apr 10 13:03:29 localhost kernel: sda:<1>Unable to handle kernel paging
request at virtual address 000f038e
Apr 10 13:03:29 localhost kernel: printing eip:
Apr 10 13:03:29 localhost kernel: c0162cd7
Apr 10 13:03:29 localhost kernel: pgd entry c9ca2000: 0000000000000000
Apr 10 13:03:29 localhost kernel: pmd entry c9ca2000: 0000000000000000
Apr 10 13:03:29 localhost kernel: ... pmd not present!
Apr 10 13:03:29 localhost kernel: Oops: 0002
Apr 10 13:03:29 localhost kernel: CPU: 0
Apr 10 13:03:29 localhost kernel: EIP: 0010:[account_io_start+39/80]
Apr 10 13:03:29 localhost kernel: EIP: 0010:[<c0162cd7>]
Apr 10 13:03:29 localhost kernel: EFLAGS: 00013046
Apr 10 13:03:29 localhost kernel: eax: 00000000 ebx: 000f0362 ecx:
00000002 edx: 00000000
Apr 10 13:03:29 localhost kernel: esi: 00000002 edi: 00000000 ebp:
00000002 esp: c2033c98
Apr 10 13:03:29 localhost kernel: ds: 0018 es: 0018 ss: 0018
Apr 10 13:03:29 localhost kernel: Process modprobe (pid: 1197,
stackpage=c2033000)
Apr 10 13:03:29 localhost kernel: Stack: c137b4a0 c2033cd8 c6a734a0 00000002
c6a734a0 c0162d85 000f0362 c6a734a0
Apr 10 13:03:29 localhost kernel: 00000000 00000002 000f0362 00000000
cb0fbc80 00000000 00000800 c01634a7
Apr 10 13:03:29 localhost kernel: c6a734a0 00000000 00000002 00001dc0
00000034 00002000 cb0fa448 cb0fa440
Apr 10 13:03:29 localhost kernel: Call Trace: [req_new_io+53/96]
[__make_request+1287/1776] [<cc86fb3b>] [generic_make_request+346/368]
[<cc871420>] [submit_bh+225/256] [__insert_into_queues+112/128]
Apr 10 13:03:29 localhost kernel: Call Trace: [<c0162d85>] [<c01634a7>]
[<cc86fb3b>] [<c01637ea>] [<cc871420>] [<c01638e1>] [<c0134ce0>]
Apr 10 13:03:29 localhost kernel: [ll_rw_block+359/448]
[bread+49/112] [msdos_partition+117/896] [printk+366/384]
[check_partition+138/208] [printk+366/384] [<cc87ba4f>]
[grok_partitions+102/176]
Apr 10 13:03:29 localhost kernel: [<c0163ab7>] [<c01357b1>]
[<c0153825>] [<c011610e>] [<c01533ca>] [<c011610e>] [<cc87ba4f>]
[<c01534c6>]
Apr 10 13:03:29 localhost kernel: [register_disk+43/64] [<cc87ac3a>]
[<cc87bc28>] [<cc87bbe0>] [<cc91b3f6>] [<cc879000>] [<cc87b1c6>]
[<cc87bbe0>]
Apr 10 13:03:29 localhost kernel: [<c015344b>] [<cc87ac3a>]
[<cc87bc28>] [<cc87bbe0>] [<cc91b3f6>] [<cc879000>] [<cc87b1c6>]
[<cc87bbe0>]
Apr 10 13:03:29 localhost kernel: [<cc87bbe0>]
[sys_init_module+1317/1504] [<cc87bd80>] [<cc86f000>] [<cc879060>]
[system_call+51/56]
Apr 10 13:03:29 localhost kernel: [<cc87bbe0>] [<c0116e05>]
[<cc87bd80>] [<cc86f000>] [<cc879060>] [<c010901b>]
Apr 10 13:03:29 localhost kernel:
Apr 10 13:03:29 localhost kernel: Code: 01 4b 2c eb 0e 8d 74 26 00 85 d2 74
03 ff 43 34 01 4b 3c 85
----------------------------------------------------------------------------
---------------------------------
W.Robert Kellock Ph:
+64 3 326 6115
Sales Manager Fax:
+64 3 326 6115
Credit Systems Control Ltd Web:
www.creditscore.co.nz
"making decisions easy"
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