> Seems, you are right, yenta.c corrupts something in hardware
> and the problem is not related to irqs.
It is not IRQ-related at all.
> Observations are:
>
> * No irqs are generated at all after lockup. Printk added at do_IRQ, no activity.
> (Moreover, here yenta irq is not shared with vga, but shared with firewire
> port though.) Nothing. I did not find any software activity at all.
> * No activity at pcmcia is required to lockup. Loading yenta_socket is enough.
> * Unloading yenta before lockup happened does not help, i.e. something
> is corrupted at time of yenta_init().
> * Lockup _inevitably_ happens when yenta_init was executed once
> and I make any operation from set:
> 1. any call to APM bios, except for cpu idle.
> 2. Pressing any hotkey, including change of LCD brightness
> (Sic! The last event is _absolutely_ invisible to software,
> so that yenta_init does something terrible with hardware).
Same problem here. I've spend some time today to figure what is going
on. Workaround:
---------------------------- cut here -----------------------------
--- 2.4.9/drivers/pcmcia/yenta.c.fix Mon Aug 20 11:02:23 2001
+++ 2.4.9/drivers/pcmcia/yenta.c Mon Aug 20 14:21:33 2001
@@ -729,7 +729,7 @@
if (type & IORESOURCE_IO) {
align = 1024;
size = 256;
- min = PCIBIOS_MIN_IO;
+ min = 0x4000 /* PCIBIOS_MIN_IO */;
max = 0xffff;
}
---------------------------- cut here -----------------------------
Looks like a ressource conflict to me. The kernel gives I/O ranges to
the cardbus socket which it thinks are free but which are *not* free for
some reason (and probably used for APM stuff). BIOS bug? PCI quirks
time?
/proc/ioports looks like this (with patch):
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
01f0-01f7 : ide0
02f8-02ff : nsc-ircc
03c0-03df : vesafb
03f6-03f6 : ide0
0cf8-0cff : PCI conf1
1100-110f : Intel Corporation 82440MX EIDE Controller
1100-1107 : ide0
1200-121f : Intel Corporation 82440MX USB Universal Host Controller
1200-121f : usb-uhci
1500-153f : Intel Corporation 82440MX AC'97 Audio Controller
1500-153f : Intel 440MX
1600-16ff : Intel Corporation 82440MX AC'97 Audio Controller
1600-16ff : Intel 440MX
1700-177f : PCI device 8086:7196 (Intel Corporation)
1800-18ff : PCI device 8086:7196 (Intel Corporation)
3000-30ff : ATI Technologies Inc 3D Rage P/M Mobility
3e00-3eff : Realtek Semiconductor Co., Ltd. RTL-8139
3e00-3eff : 8139too
4000-40ff : PCI CardBus #01
4400-44ff : PCI CardBus #01
lspci says:
00:00.0 Host bridge: Intel Corporation 82440MX I/O Controller (rev 01)
Subsystem: Mitac: Unknown device 7722
Flags: bus master, medium devsel, latency 64
00:00.1 Multimedia audio controller: Intel Corporation 82440MX AC'97 Audio Controller
Subsystem: Mitac: Unknown device 7722
Flags: bus master, fast devsel, latency 0, IRQ 5
I/O ports at 1600 [size=256]
I/O ports at 1500 [size=64]
00:00.2 Modem: Intel Corporation: Unknown device 7196 (prog-if 00 [Generic])
Subsystem: Mitac: Unknown device 7722
Flags: bus master, fast devsel, latency 0, IRQ 5
I/O ports at 1800 [size=256]
I/O ports at 1700 [size=128]
00:07.0 ISA bridge: Intel Corporation 82440MX PCI to ISA Bridge (rev 01)
Flags: bus master, medium devsel, latency 0
00:07.1 IDE interface: Intel Corporation 82440MX EIDE Controller (prog-if 80 [Master])
Flags: bus master, medium devsel, latency 64
I/O ports at 1100 [size=16]
00:07.2 USB Controller: Intel Corporation 82440MX USB Universal Host Controller (prog-if 00 [UHCI])
Flags: bus master, medium devsel, latency 240, IRQ 11
I/O ports at 1200 [size=32]
00:07.3 Bridge: Intel Corporation 82440MX Power Management Controller
Flags: medium devsel
00:08.0 CardBus bridge: Texas Instruments PCI1410 PC card Cardbus Controller (rev 01)
Subsystem: Mitac: Unknown device 7722
Flags: bus master, medium devsel, latency 168, IRQ 10
Memory at 10000000 (32-bit, non-prefetchable) [size=4K]
Bus: primary=00, secondary=01, subordinate=04, sec-latency=176
Memory window 0: 10400000-107ff000 (prefetchable)
Memory window 1: 10800000-10bff000
I/O window 0: 00004000-000040ff
I/O window 1: 00004400-000044ff
16-bit legacy interface ports at 0001
00:09.0 VGA compatible controller: ATI Technologies Inc 3D Rage P/M Mobility (rev 64) (prog-if 00 [VGA])
Subsystem: Mitac: Unknown device 7722
Flags: bus master, stepping, medium devsel, latency 0
Memory at c0000000 (32-bit, non-prefetchable) [size=16M]
I/O ports at 3000 [size=256]
Memory at c1000000 (32-bit, non-prefetchable) [size=4K]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [5c] Power Management version 1
00:0a.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8139 (rev 10)
Subsystem: Mitac: Unknown device 7722
Flags: bus master, medium devsel, latency 128, IRQ 11
I/O ports at 3e00 [size=256]
Memory at e9100000 (32-bit, non-prefetchable) [size=256]
Capabilities: [50] Power Management version 2
00:0b.0 FireWire (IEEE 1394): NEC Corporation: Unknown device 00cd (rev 02) (prog-if 10 [OHCI])
Subsystem: Mitac: Unknown device 7722
Flags: bus master, medium devsel, latency 64, IRQ 10
Memory at 10001000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [60] Power Management version 1
Gerd
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This archive was generated by hypermail 2b29 : Thu Aug 23 2001 - 21:00:35 EST