Hi,
[Please CC me on any replies; I'm not subscribed to linux-kernel.]
I'm having problems related to using a pcmcia bridge on a desktop PC.
The machine used to contain a TMC TI5-VG+ motherboard with a 400Mhz K6-II.
With the TMC motherboard, everything worked worked fine. When I upgraded
the machine to a Gigabyte GA-7ZX with 800Mhz Athlon, the CD-writer and
LS-120 floppy on the secondary IDE channel stopped working. By fiddling
around with the kernel configuration, I've finally narrowed it down to
the PC card drivers; the machine contains a Chase-AT "Duo" ISA-to-PCMCIA
bridge.
What appears to happen is this. I boot the system:
root@munkustrap:~# cat /proc/cmdline
BOOT_IMAGE=test ro root=301 BOOT_FILE=/vmlinuz.test hdc=ide-scsi single
root@munkustrap:~# cat /proc/version
Linux version 2.4.0 (root@munkustrap) (gcc version 2.95.2 20000313 (Debian GNU/Linux))
#1 Tue Jan 16 20:11:06 GMT 2001
I've tried several other kernel versions; some 2.2 series, some 2.4.0-test
series, and also 2.4.1. They all give the same result. Logging in in
single-user mode, I can access the CD-ROM drive okay:
root@munkustrap:~# cdir
sr0: CDROM not ready. Make sure there is a disc in the drive.
nodisc
Then I load the core module:
root@munkustrap:~# insmod /lib/modules/2.4.0/kernel/drivers/pcmcia/pcmcia_core.o
Linux PCMCIA Card Services 3.1.22
options: [pci] [cardbus] [pm]
root@munkustrap:~# cdir
sr0: CDROM not ready. Make sure there is a disc in the drive.
nodisc
At this stage, the CD still works fine. Then I insert the i82365 module:
root@munkustrap:~# insmod /lib/modules/2.4.0/kernel/drivers/pcmcia/i82365.o
poll_interval=100 irq_list=5
Intel PCIC probe:
Cirrus PD672x ISA-to-PCMCIA at port 0x3e0 ofs 0x00, 2 sockets
host opts [0]: [ring] [65/6/0] [1/15/0]
host opts [1]: [ring] [65/6/0] [1/15/0]
ISA irqs (default) = 5 polling interval = 1000 ms
charles@munkustrap:~$ cdir
scsi : aborting command due to timeout : pid 0, scsi0, channel 0, id 0, lun 0 Test
Unit Ready 00 00 00 00 00
hdc: lost interrupt
scsi : aborting command due to timeout : pid 0, scsi0, channel 0, id 0, lun 0 Request
Sense 00 00 00 40 00
SCSI host 0 abort (pid 0) timed out - resetting
SCSI bus is being reset for host 0 channel 0.
hdc: lost interrupt
(and lots more of the same...)
I've tried with and without poll_interval, and with various irq_lists
("12,13", "10", "5"). All give the same result. The same happens with
the floppy, /dev/hdd. /dev/hda is fine, though.
So, it seems that inserting the i82365 module interferes with the
interrupt being used for the secondary IDE channel on the GA-7ZX board,
but doesn't interfere with the secondary IDE channel on the TI5-VG+.
Does anyone know what's going on here? Can anyone suggest a fix or
a workaround? (Unloading the pcmcia modules does NOT cause hdc and hdd
to start working, unfortunately. I have to reboot to get them working
again.) Failing that, can anyone suggest how I might try to develop a
fix or a workaround?
Some more system details, in case they're of use:
root@munkustrap:~# cat /proc/interrupts
CPU0
0: 98584 XT-PIC timer
1: 241 XT-PIC keyboard
2: 0 XT-PIC cascade
7: 1 XT-PIC parport0
8: 1 XT-PIC rtc
9: 2330 XT-PIC usb-uhci, usb-uhci, eth0
12: 2 XT-PIC PS/2 Mouse
14: 3444 XT-PIC ide0
15: 80 XT-PIC ide1
NMI: 0
ERR: 0
(Also, I know that irqs 3 and 4 are in use by the serial ports. I think
the rest are free.)
root@munkustrap:~# cat /proc/iomem
00000000-0009fbff : System RAM
0009fc00-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000ec000-000effff : reserved
000f0000-000fffff : System ROM
00100000-07feffff : System RAM
00100000-00201681 : Kernel code
00201682-00266067 : Kernel data
07ff0000-07ff7fff : ACPI Tables
07ff8000-07ffffff : ACPI Non-volatile Storage
ddc00000-dfcfffff : PCI Bus #01
de000000-deffffff : ATI Technologies Inc 3D Rage Pro AGP 1X/2X
de000000-deffffff : atyfb
dfe00000-dfefffff : PCI Bus #01
dfeff000-dfefffff : ATI Technologies Inc 3D Rage Pro AGP 1X/2X
e0000000-e3ffffff : VIA Technologies, Inc. VT8363/8365 [KT133/KM133]
ffff0000-ffffffff : reserved
root@munkustrap:~# cat /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
0378-037a : parport0
03c0-03df : vga+
03e0-03e1 : i82365
03f6-03f6 : ide0
03f8-03ff : serial(set)
0400-040f : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
0778-077a : parport0
0800-08ff : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
0c00-0c7f : VIA Technologies, Inc. VT82C686 [Apollo Super ACPI]
0cf8-0cff : PCI conf1
9000-afff : PCI Bus #01
a800-a8ff : ATI Technologies Inc 3D Rage Pro AGP 1X/2X
cc00-cc1f : Realtek Semiconductor Co., Ltd. RTL-8029(AS)
cc00-cc1f : ne2k-pci
d000-d03f : Ensoniq ES1371 [AudioPCI-97]
d400-d41f : VIA Technologies, Inc. UHCI USB
d400-d41f : usb-uhci
d800-d81f : VIA Technologies, Inc. UHCI USB (#2)
d800-d81f : usb-uhci
ffa0-ffaf : VIA Technologies, Inc. Bus Master IDE
ffa0-ffa7 : ide0
ffa8-ffaf : ide1
root@munkustrap:~# cat /proc/pci
PCI devices found:
Bus 0, device 0, function 0:
Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev 2).
Master Capable. Latency=8.
Prefetchable 32 bit memory at 0xe0000000 [0xe3ffffff].
Bus 0, device 1, function 0:
PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (rev 0).
Master Capable. No bursts. Min Gnt=8.
Bus 0, device 7, function 0:
ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (rev 34).
Bus 0, device 7, function 1:
IDE interface: VIA Technologies, Inc. Bus Master IDE (rev 16).
Master Capable. Latency=32.
I/O at 0xffa0 [0xffaf].
Bus 0, device 7, function 3:
USB Controller: VIA Technologies, Inc. UHCI USB (#2) (rev 16).
IRQ 9.
Master Capable. Latency=64.
I/O at 0xd800 [0xd81f].
Bus 0, device 7, function 2:
USB Controller: VIA Technologies, Inc. UHCI USB (rev 16).
IRQ 9.
Master Capable. Latency=64.
I/O at 0xd400 [0xd41f].
Bus 0, device 7, function 4:
SMBus: VIA Technologies, Inc. VT82C686 [Apollo Super ACPI] (rev 48).
Bus 0, device 14, function 0:
Multimedia audio controller: Ensoniq ES1371 [AudioPCI-97] (rev 7).
IRQ 10.
Master Capable. Latency=64. Min Gnt=12.Max Lat=128.
I/O at 0xd000 [0xd03f].
Bus 0, device 15, function 0:
Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8029(AS) (rev 0).
IRQ 9.
I/O at 0xcc00 [0xcc1f].
Bus 1, device 0, function 0:
VGA compatible controller: ATI Technologies Inc 3D Rage Pro AGP 1X/2X (rev 92).
IRQ 11.
Master Capable. Latency=64. Min Gnt=8.
Prefetchable 32 bit memory at 0xde000000 [0xdeffffff].
I/O at 0xa800 [0xa8ff].
Non-prefetchable 32 bit memory at 0xdfeff000 [0xdfefffff].
Thanks for any help.
--
The currently .sig-less Charles Briscoe-Smith
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