Arch Linux

====1.====
(Description of Problem)

Current ArchLinux 0.8 (Voodoo)

**lsmod | grep -i mmc**
<code>
mmc_block 12040 0
mmc_core 28672 2 mmc_block,sdhci
</code>

**dmesg | grep -i mmc**
<code>
PCI: Using MMCONFIG
sr0: scsi3-mmc drive: 62x/62x writer dvd-ram cd/rw xa/form2 cdda tray
mmc0: SDHCI at 0xb0300400 irq 225 DMA
</code>

**dmesg | grep -i sdhci**
<code>
sdhci: Secure Digital Host Controller Interface driver, 0.12
sdhci: Copyright(c) Pierre Ossman
sdhci: SDHCI controller found at 0000:05:06.1 [1180:0822] (rev 19)
mmc0: SDHCI at 0xb0300400 irq 225 DMA
</code>

**cat /proc/devices**
<code>
Character devices:
1 mem
2 pty
3 ttyp
4 /dev/vc/0
4 tty
4 ttyS
5 /dev/tty
5 /dev/console
5 /dev/ptmx
7 vcs
10 misc
13 input
14 sound
21 sg
29 fb
116 alsa
128 ptm
136 pts
171 ieee1394
180 usb
189 usb_device
216 rfcomm
226 drm
254 pcmcia

Block devices:
1 ramdisk
7 loop
8 sd
9 md
11 sr
65 sd
66 sd
67 sd
68 sd
69 sd
70 sd
71 sd
128 sd
129 sd
130 sd
131 sd
132 sd
133 sd
134 sd
135 sd
252 mdp
253 device-mapper
254 mmc
</code>

**lspci**
<code>
00:00.0 Host bridge: Intel Corporation Mobile 945GM/PM/GMS/940GML and 945GT
Express Memory Controller Hub (rev 03)
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS/940GML
Express Integrated Graphics Controller (rev 03)
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/940GML Express
Integrated Graphics Controller (rev 03)
00:1b.0 Audio device: Intel Corporation 82801G (ICH7 Family) High Definition
Audio Controller (rev 02)
00:1c.0 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 1
(rev 02)
00:1c.1 PCI bridge: Intel Corporation 82801G (ICH7 Family) PCI Express Port 2
(rev 02)
00:1d.0 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #1 (rev
02)
00:1d.1 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #2 (rev
02)
00:1d.2 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #3 (rev
02)
00:1d.3 USB Controller: Intel Corporation 82801G (ICH7 Family) USB UHCI #4 (rev
02)
00:1d.7 USB Controller: Intel Corporation 82801G (ICH7 Family) USB2 EHCI
Controller (rev 02)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev e2)
00:1f.0 ISA bridge: Intel Corporation 82801GBM (ICH7-M) LPC Interface Bridge
(rev 02)
00:1f.2 IDE interface: Intel Corporation 82801GBM/GHM (ICH7 Family) Serial ATA
Storage Controller IDE (rev 02)
00:1f.3 SMBus: Intel Corporation 82801G (ICH7 Family) SMBus Controller (rev 02)
03:00.0 Network controller: Broadcom Corporation BCM4310 UART (rev 01)
05:01.0 Ethernet controller: Realtek Semiconductor Co., Ltd.
RTL-8139/8139C/8139C+ (rev 10)
05:04.0 CardBus bridge: ENE Technology Inc CB1410 Cardbus Controller (rev 01)
05:06.0 FireWire (IEEE 1394): Ricoh Co Ltd Unknown device 0832
05:06.1 Generic system peripheral [Class 0805]: Ricoh Co Ltd R5C822
SD/SDIO/MMC/MS/MSPro Host Adapter (rev 19)
05:06.2 System peripheral: Ricoh Co Ltd Unknown device 0843 (rev 01)
05:06.3 System peripheral: Ricoh Co Ltd R5C592 Memory Stick Bus Host Adapter
(rev 0a)
05:06.4 System peripheral: Ricoh Co Ltd xD-Picture Card Controller (rev 05)
</code>

**lspci -n**
<code>
00:00.0 Class 0600: 8086:27a0 (rev 03)
00:02.0 Class 0300: 8086:27a2 (rev 03)
00:02.1 Class 0380: 8086:27a6 (rev 03)
00:1b.0 Class 0403: 8086:27d8 (rev 02)
00:1c.0 Class 0604: 8086:27d0 (rev 02)
00:1c.1 Class 0604: 8086:27d2 (rev 02)
00:1d.0 Class 0c03: 8086:27c8 (rev 02)
00:1d.1 Class 0c03: 8086:27c9 (rev 02)
00:1d.2 Class 0c03: 8086:27ca (rev 02)
00:1d.3 Class 0c03: 8086:27cb (rev 02)
00:1d.7 Class 0c03: 8086:27cc (rev 02)
00:1e.0 Class 0604: 8086:2448 (rev e2)
00:1f.0 Class 0601: 8086:27b9 (rev 02)
00:1f.2 Class 0101: 8086:27c4 (rev 02)
00:1f.3 Class 0c05: 8086:27da (rev 02)
03:00.0 Class 0280: 14e4:4312 (rev 01)
05:01.0 Class 0200: 10ec:8139 (rev 10)
05:04.0 Class 0607: 1524:1410 (rev 01)
05:06.0 Class 0c00: 1180:0832
05:06.1 Class 0805: 1180:0822 (rev 19)
05:06.2 Class 0880: 1180:0843 (rev 01)
05:06.3 Class 0880: 1180:0592 (rev 0a)
05:06.4 Class 0880: 1180:0852 (rev 05)
</code>

**lsusb**
<code>
Bus 002 Device 001: ID 0000:0000
Bus 004 Device 001: ID 0000:0000
Bus 001 Device 003: ID 0a5c:2101 Broadcom Corp.
Bus 001 Device 001: ID 0000:0000
Bus 005 Device 006: ID 0ea0:2168 Ours Technology, Inc. Transcend JetFlash 2.0 /
Astone USB Drive
Bus 005 Device 003: ID 0c45:624f Microdia
Bus 005 Device 001: ID 0000:0000
Bus 003 Device 002: ID 08ff:2580 AuthenTec, Inc.
Bus 003 Device 001: ID 0000:0000
</code>

====2.====
(Steps to reproduce the problem)

**mknod /dev/mmc b 254 0**\\
**mknod /dev/mmc0 b 254 1**

====3.====
(Actual Results)

**mount /dev/mmc /mnt**
<code>
mount: /dev/mmc is not a valid block device.
</code>

**mount /dev/mmc0 /mnt**
<code>
mount: /dev/mmc0 is not a valid block device.
</code>

====4.====
(Expected Results)

Mount as flashdisk, automaticly detected by udev, appears in /proc/partitions.

cat /proc/interrupts
IRQ on the sdhci line increasing up baldheaded and dmesg never knows, that card
is inserted or removed.

====5.====
(How often does this happen)

This problem is permanent. Same behaviour on Mandriva, Ubuntu, ForeSight linux.

====6.====
(Additional Information)

With irqpoll or pci=route-irq kernel option, IRQ on the sdhci line never changed
and dmesg never knows, that card is inserted or removed.