* kernel BUG at drivers/mmc/core/sdio_io.c:28!
@ 2010-10-27 13:24 Elvis Dowson
2010-10-27 14:05 ` Ohad Ben-Cohen
0 siblings, 1 reply; 4+ messages in thread
From: Elvis Dowson @ 2010-10-27 13:24 UTC (permalink / raw)
To: Linux Kernel Mailing List; +Cc: Benzy Gabay, Luciano Coelho, Vishal Mahaveer
Hi,
I'm just trying to bring the LSR TiWi wl1271 wlan module up with Luca's wl12xx.git tree, which is based on with 2.6.36-rc8, and vijay's L23.I3.7 tiwlan drivers.
When I try using the tiwlan driver, I get the following error:
kernel BUG at drivers/mmc/core/sdio_io.c:28!
The code fragment looks like this:
/**
* sdio_claim_host - exclusively claim a bus for a certain SDIO function
* @func: SDIO function that will be accessed
*
* Claim a bus for a set of operations. The SDIO function given
* is used to figure out which bus is relevant.
*/
void sdio_claim_host(struct sdio_func *func)
{
BUG_ON(!func);
BUG_ON(!func->card);
mmc_claim_host(func->card->host);
}
EXPORT_SYMBOL_GPL(sdio_claim_host);
root@beagleboard:/wlan# insmod sdio.ko
[ 92.668670] sdioDrv_init: Debug mode
[ 92.673858] TI WiLink 1271 SDIO: Driver loaded
root@beagleboard:/wlan# insmod tiwlan_drv.ko
[ 113.210571] TI WLAN: driver loading
[ 113.236053] wifi_probe_irq: got wlan irq 215
[ 113.254791] wifi_probe_irq: got wlan irq trigger falling flag
[ 113.260589] dashboard20_wifi_set_carddetect: 0
[ 113.283203] dashboard20_wifi_set_carddetect: Nobody to notify
[ 113.298309] dashboard20_wifi_reset: 1
[ 113.302581] dashboard20_wifi_power: 0
[ 114.398345] IRQ= 215 FLAGS= 2
root@beagleboard:/wlan# ./tiwlan_loader
root@beagleboard:/wlan# ifconfig -a
lo Link encap:Local Loopback
LOOPBACK MTU:16436 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
tiwlan0 Link encap:Ethernet HWaddr 00:00:00:00:00:00
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:100
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
usb0 Link encap:Ethernet HWaddr 5E:8A:4F:3A:A9:25
BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 b) TX bytes:0 (0.0 b)
root@beagleboard:/wlan# ifconfig tiwlan0 up
[ 200.916687] TIWLAN: 2227.094325: pInitParams->RoamingScanning_2_4G_enable 0
[ 200.924530] dashboard20_wifi_power: 1
[ 200.943267] dashboard20_wifi_power: 0
[ 200.947937] dashboard20_wifi_power: 1
[ 201.020507] dashboard20_wifi_reset: 0
[ 201.024200] dashboard20_wifi_set_carddetect: 1
[ 201.029113] dashboard20_wifi_set_carddetect: Nobody to notify
[ 202.027465] tiwlan_sdio_probe not yet called
[ 202.031768] tiwlan_sdio_probe not yet called
[ 202.036590] kernel BUG at drivers/mmc/core/sdio_io.c:28!
[ 202.041961] Unable to handle kernel NULL pointer dereference at virtual address 00000000
[ 202.050537] pgd = c6ccc000
[ 202.053588] [00000000] *pgd=86d44031, *pte=00000000, *ppte=00000000
[ 202.060241] Internal error: Oops: 817 [#1] PREEMPT
[ 202.065063] last sysfs file: /sys/devices/platform/device_wifi.1/net/tiwlan0/flags
[ 202.072662] Modules linked in: tiwlan_drv sdio
[ 202.077178] CPU: 0 Tainted: G W (2.6.36-rc8-wl #21)
[ 202.083221] PC is at __bug+0x1c/0x28
[ 202.086822] LR is at __bug+0x18/0x28
[ 202.090423] pc : [<c003fd34>] lr : [<c003fd30>] psr: 40000013
[ 202.090454] sp : c6e81ba0 ip : c6e81b18 fp : 00000007
[ 202.101989] r10: 00000001 r9 : 00000005 r8 : bf001174
[ 202.107238] r7 : c774c000 r6 : 0001ffc4 r5 : 00000004 r4 : 00000002
[ 202.113800] r3 : 00000000 r2 : c6e80000 r1 : c6e80000 r0 : 00000042
[ 202.120361] Flags: nZcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user
[ 202.127532] Control: 10c5387d Table: 86ccc019 DAC: 00000015
[ 202.133331] Process ifconfig (pid: 836, stack limit = 0xc6e802f0)
[ 202.139465] Stack: (0xc6e81ba0 to 0xc6e82000)
[ 202.143859] 1ba0: c0540878 c0418968 c6e81b90 bf00074c c6e81bd6 c6e81bc0 c006e708 00000001
[ 202.152069] 1bc0: 00000000 00000049 c6d32614 00000000 c76cf414 bf00cbec 00000001 00000001
[ 202.160308] 1be0: 5d383637 bf0821f4 00000000 00000000 00000001 00000001 c06fbef8 0d09dc30
[ 202.168548] 1c00: 000000c9 c06fb998 00000000 00000000 00000002 c76cf418 00000000 c6d32614
[ 202.176757] 1c20: 00000001 c76cf414 c774c000 bf0824e0 c6e81c84 bf00045c bf000cc7 00000000
[ 202.184997] 1c40: 00000000 c0068050 c074a34c 0000002e 0058f0fa 00000000 c773d7c0 00000004
[ 202.193237] 1c60: 00000001 0001ffc8 00000013 c773488c c77348c8 00000002 c76cf414 c7734854
[ 202.201446] 1c80: 00000005 00000001 c76cf414 bf081298 00000001 00000001 00000013 bf0822cc
[ 202.209686] 1ca0: 00000000 c7734854 c76cf414 c7755814 c76cf414 c7755814 c76cf504 c76cf414
[ 202.217926] 1cc0: c76cf540 bf0816cc c76cf540 c6e81cd8 00000000 c76cf450 c7755814 bf0801f0
[ 202.226135] 1ce0: c774c000 bf0824e0 c6e81d6c c6e81cf8 c0544b9c c054495c 00000000 c6e55780
[ 202.234375] 1d00: c7787014 000001bc 000001a4 00000000 00000000 c76cf450 c7755814 c76cf414
[ 202.242614] 1d20: c76cf48c c76cf504 c76cf4c8 bf080684 00000000 c76cf57c bf009174 c7787014
[ 202.250854] 1d40: 00000000 00000004 00000000 00000002 c774a014 c7787014 c7787724 bf07d9f8
[ 202.259063] 1d60: 00000000 00000001 c6d3230c c6e81d78 bf009174 c054495c c7734854 c7787014
[ 202.267303] 1d80: 00000050 00000000 00000000 00000002 c6d32304 c77f2200 c6d3230c bf07e07c
[ 202.275543] 1da0: c7735050 00000000 c7786014 c7786014 00002000 bf068284 c6d32310 00000001
[ 202.283752] 1dc0: c6d32304 00000001 00000000 00000000 c6d32214 bf00d374 00002000 c6d32310
[ 202.291992] 1de0: c7667a80 00000000 c6d32310 c6d322c8 00000000 c6d3242c 00000006 c6d32414
[ 202.300231] 1e00: 00000000 00000001 00000000 c6e81eb0 0001b4b4 bf083c78 c6e81eb0 bf009694
[ 202.308441] 1e20: c6d32214 c6e22800 00001043 00001002 c0794020 bf00db00 00001043 00001002
[ 202.316680] 1e40: c77f2200 bf0086d8 00000000 c6e22800 bf092738 c046071c c045e834 c6e22800
[ 202.324920] 1e60: 00000041 c045e9c8 00000000 c6e22800 00001002 becd2af8 00008914 c0460630
[ 202.333160] 1e80: c6e80000 00000001 becd2af8 c04b5018 00000000 becd2af8 00000020 c6e81ec0
[ 202.341369] 1ea0: c76fe400 c76fe40c c6e22800 00000000 6c776974 00306e61 00000000 00000000
[ 202.349609] 1ec0: becd1043 0000002c 00000070 00000002 becd1043 0000002c 00000070 00000002
[ 202.357849] 1ee0: becd1002 00008914 00000004 becd2af8 c0794020 c003cba4 c6e80000 becd2bd0
[ 202.366058] 1f00: 0001b4b4 c044cebc becd2af8 c72391a0 00000004 c6d47980 becd2af8 c012f13c
[ 202.374298] 1f20: 00000005 00000000 c70f8100 00000001 00000004 00000000 c01328d8 c7400b80
[ 202.382537] 1f40: c7415000 00000005 00000000 c044e410 00012c1c fffffffe c07050d0 c0704f7c
[ 202.390747] 1f60: c6d47fe0 00000004 becd2af8 00008914 c6d47980 c003cba4 c6e80000 becd2bd0
[ 202.398986] 1f80: 0001b4b4 c012f6e4 00000000 00000000 0001b5b8 becd2af8 becd2bd0 00000041
[ 202.407226] 1fa0: 00000036 c003ca20 becd2af8 becd2bd0 00000004 00008914 becd2af8 00001002
[ 202.415435] 1fc0: becd2af8 becd2bd0 00000041 00000036 00000000 00000000 becd2bd0 0001b4b4
[ 202.423675] 1fe0: 0001b6ac becd2af8 00009368 4019463c 60000010 00000004 00000000 00000000
[ 202.431915] [<c003fd34>] (__bug+0x1c/0x28) from [<c0418968>] (sdio_claim_host+0x3c/0x4c)
[ 202.440093] [<c0418968>] (sdio_claim_host+0x3c/0x4c) from [<bf00074c>] (sdioDrv_WriteSync+0x28/0xd0 [sdio])
[ 202.450469] [<bf00074c>] (sdioDrv_WriteSync+0x28/0xd0 [sdio]) from [<bf00cbec>] (sdioAdapt_Transact+0x48/0x4c [tiwlan_drv])
[ 202.462402] [<bf00cbec>] (sdioAdapt_Transact+0x48/0x4c [tiwlan_drv]) from [<bf0821f4>] (busDrv_SendTxnParts+0x120/0x300 [tiwlan_drv])
[ 202.475341] [<bf0821f4>] (busDrv_SendTxnParts+0x120/0x300 [tiwlan_drv]) from [<bf0824e0>] (busDrv_Transact+0x10c/0x344 [tiwlan_drv])
[ 202.488189] [<bf0824e0>] (busDrv_Transact+0x10c/0x344 [tiwlan_drv]) from [<bf081298>] (txnQ_Scheduler+0x8c/0x3e8 [tiwlan_drv])
[ 202.500488] [<bf081298>] (txnQ_Scheduler+0x8c/0x3e8 [tiwlan_drv]) from [<bf0816cc>] (txnQ_RunScheduler+0xd8/0x194 [tiwlan_drv])
[ 202.512878] [<bf0816cc>] (txnQ_RunScheduler+0xd8/0x194 [tiwlan_drv]) from [<bf0801f0>] (twIf_SendTransaction+0xac/0x274 [tiwlan_drv])
[ 202.525787] [<bf0801f0>] (twIf_SendTransaction+0xac/0x274 [tiwlan_drv]) from [<bf080684>] (twIf_SetPartition+0x118/0x294 [tiwlan_drv])
[ 202.538787] [<bf080684>] (twIf_SetPartition+0x118/0x294 [tiwlan_drv]) from [<bf07d9f8>] (hwInit_BootSm+0x91c/0xf50 [tiwlan_drv])
[ 202.551269] [<bf07d9f8>] (hwInit_BootSm+0x91c/0xf50 [tiwlan_drv]) from [<bf07e07c>] (hwInit_Boot+0x50/0x5c [tiwlan_drv])
[ 202.562988] [<bf07e07c>] (hwInit_Boot+0x50/0x5c [tiwlan_drv]) from [<bf068284>] (TWD_InitHw+0x70/0x100 [tiwlan_drv])
[ 202.574127] [<bf068284>] (TWD_InitHw+0x70/0x100 [tiwlan_drv]) from [<bf00d374>] (drvMain_SmEvent+0x57c/0x9f8 [tiwlan_drv])
[ 202.585876] [<bf00d374>] (drvMain_SmEvent+0x57c/0x9f8 [tiwlan_drv]) from [<bf083c78>] (context_DriverTask+0x98/0x100 [tiwlan_drv])
[ 202.598297] [<bf083c78>] (context_DriverTask+0x98/0x100 [tiwlan_drv]) from [<bf00db00>] (drvMain_InsertAction+0x78/0x114 [tiwlan_drv])
[ 202.610839] [<bf00db00>] (drvMain_InsertAction+0x78/0x114 [tiwlan_drv]) from [<bf0086d8>] (wlanDrvIf_Start+0x34/0x7c [tiwlan_drv])
[ 202.622833] [<bf0086d8>] (wlanDrvIf_Start+0x34/0x7c [tiwlan_drv]) from [<c046071c>] (__dev_open+0xb4/0x100)
[ 202.632659] [<c046071c>] (__dev_open+0xb4/0x100) from [<c045e9c8>] (__dev_change_flags+0x80/0x140)
[ 202.641693] [<c045e9c8>] (__dev_change_flags+0x80/0x140) from [<c0460630>] (dev_change_flags+0x10/0x48)
[ 202.651153] [<c0460630>] (dev_change_flags+0x10/0x48) from [<c04b5018>] (devinet_ioctl+0x724/0x754)
[ 202.660278] [<c04b5018>] (devinet_ioctl+0x724/0x754) from [<c044cebc>] (sock_ioctl+0x78/0x270)
[ 202.668945] [<c044cebc>] (sock_ioctl+0x78/0x270) from [<c012f13c>] (do_vfs_ioctl+0x84/0x5f4)
[ 202.677459] [<c012f13c>] (do_vfs_ioctl+0x84/0x5f4) from [<c012f6e4>] (sys_ioctl+0x38/0x60)
[ 202.685760] [<c012f6e4>] (sys_ioctl+0x38/0x60) from [<c003ca20>] (ret_fast_syscall+0x0/0x30)
[ 202.694274] Code: e1a01000 e59f000c eb140016 e3a03000 (e5833000)
[ 202.704986] ---[ end trace eacf7fa410f93d66 ]---
Segmentation fault
root@beagleboard:/wlan# [ 205.832153] mmci-omap-hs mmci-omap-hs.0: mmc_fclk: enabled
[ 205.837677] mmci-omap-hs mmci-omap-hs.0: context was not lost
[ 205.844085] mmc0: starting CMD25 arg 64738a00 flags 000000b5
[ 205.850128] mmc0: blksz 512 blocks 8 flags 00000100 tsac 300 ms nsac 0
[ 205.857360] mmc0: CMD12 arg 00000000 flags 0000049d
[ 205.862670] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD25, argument 0x64738a00
[ 205.869964] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 205.875305] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 205.880645] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD12, argument 0x00000000
[ 205.887542] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 205.979309] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 205.984680] mmc0: req done (CMD25): 0: 00000900 00000000 00000000 00000000
[ 205.991577] mmc0: 4096 bytes transferred: 0
[ 205.996154] mmc0: (CMD12): 0: 00000c00 00000000 00000000 00000000
[ 206.002746] mmc0: starting CMD13 arg b8740000 flags 00000015
[ 206.009338] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD13, argument 0xb8740000
[ 206.016510] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 206.021881] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 206.030670] mmc0: starting CMD25 arg 329f9a00 flags 000000b5
[ 206.036865] mmc0: blksz 512 blocks 64 flags 00000100 tsac 300 ms nsac 0
[ 206.044219] mmc0: CMD12 arg 00000000 flags 0000049d
[ 206.049591] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD25, argument 0x329f9a00
[ 206.056915] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 206.064880] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 206.070220] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD12, argument 0x00000000
[ 206.077117] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 206.148773] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 206.154144] mmc0: req done (CMD25): 0: 00000900 00000000 00000000 00000000
[ 206.161071] mmc0: 32768 bytes transferred: 0
[ 206.165710] mmc0: (CMD12): 0: 00000c00 00000000 00000000 00000000
[ 206.173004] mmc0: starting CMD13 arg b8740000 flags 00000015
[ 206.179046] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD13, argument 0xb8740000
[ 206.186187] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 206.191528] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 206.200317] mmc0: starting CMD25 arg 32a01a00 flags 000000b5
[ 206.206024] mmc0: blksz 512 blocks 8 flags 00000100 tsac 300 ms nsac 0
[ 206.213531] mmc0: CMD12 arg 00000000 flags 0000049d
[ 206.219177] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD25, argument 0x32a01a00
[ 206.226440] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 206.231781] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 206.237121] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD12, argument 0x00000000
[ 206.244018] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 206.249389] mmci-omap-hs mmci-om61627] mmc0: 4096 bytes transferred: 0
[ 206.266204] mmc0: (CMD12): 0: 00000c00 00000000 00000000 00000000
[ 206.276397] mmc0: starting CMD13 arg b8740000 flags 00000015
[ 206.282531] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD13, argument 0xb8740000
[ 206.289733] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 206.295104] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 206.418090] mmci-omap-hs mmci-omap-hs.0: mmc_fclk: disabled
[ 229.113708] mmci-omap-hs mmci-omap-hs.0: mmc_fclk: enabled
[ 229.119262] mmci-omap-hs mmci-omap-hs.0: context was not lost
[ 229.125640] mmc0: starting CMD25 arg 3a7b1a00 flags 000000b5
[ 229.131713] mmc0: blksz 512 blocks 16 flags 00000100 tsac 300 ms nsac 0
[ 229.139038] mmc0: CMD12 arg 00000000 flags 0000049d
[ 229.144653] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD25, argument 0x3a7b1a00
[ 229.151489] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.157226] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.162597] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD12, argument 0x00000000
[ 229.169464] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.236358] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.241729] mmc0: req done (CMD25): 0: 00000900 00000000 00000000 00000000
[ 229.248657] mmc0: 8192 bytes transferred: 0
[ 229.253204] mmc0: (CMD12): 0: 00000c00 00000000 00000000 00000000
[ 229.262176] mmc0: starting CMD13 arg b8740000 flags 00000015
[ 229.267883] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD13, argument 0xb8740000
[ 229.275360] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.280700] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 229.289154] mmc0: starting CMD25 arg 5a73fa00 flags 000000b5
[ 229.295288] mmc0: blksz 512 blocks 8 flags 00000100 tsac 300 ms nsac 0
[ 229.302551] mmc0: CMD12 arg 00000000 flags 0000049d
[ 229.307861] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD25, argument 0x5a73fa00
[ 229.315155] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.320495] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.325836] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD12, argument 0x00000000
[ 229.332733] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.403961] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.409332] mmc0: req done (CMD25): 0: 00000900 00000000 00000000 00000000
[ 229.416229] mmc0: 4096 bytes transferred: 0
[ 229.420806] mmc0: (CMD12): 0: 00000c00 00000000 00000000 00000000
[ 229.427398] mmc0: starting CMD13 arg b8740000 flags 00000015
[ 229.433105] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD13, argument 0xb8740000
[ 229.442871] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.448242] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 229.455871] mmc0: starting CMD25 arg 02738a00 flags 000000b5
[ 229.461944] mmc0: blksz 512 blocks 16 flags 00000100 tsac 300 ms nsac 0
[ 229.469360] mmc0: CMD12 arg 00000000 flags 0000049d
[ 229.474975] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD25, argument 0x02738a00
[ 229.482147] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.487548] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.492889] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD12, argument 0x00000000
[ 229.499786] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.566223] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.571594] mmc0: req done (CMD25): 0: 00000900 00000000 00000000 00000000
[ 229.578491] mmc0: 8192 bytes transferred: 0
[ 229.583068] mmc0: (CMD12): 0: 00000c00 00000000 00000000 00000000
[ 229.589660] mmc0: starting CMD13 arg b8740000 flags 00000015
[ 229.596221] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD13, argument 0xb8740000
[ 229.603393] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.608764] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 229.617187] mmc0: starting CMD25 arg 5a744a00 flags 000000b5
[ 229.623291] mmc0: blksz 512 blocks 8 flags 00000100 tsac 300 ms nsac 0
[ 229.630584] mmc0: CMD12 arg 00000000 flags 0000049d
[ 229.635864] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD25, argument 0x5a744a00
[ 229.643157] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.648498] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.653839] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD12, argument 0x00000000
[ 229.660736] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.666107] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.671447] mmc0: req done (CMD25): 0: 00000900 00000000 00000000 00000000
[ 229.678344] mmc0: 4096 bytes transferred: 0
[ 229.682922] mmc0: (CMD12): 0: 00000c00 00000000 00000000 00000000
[ 229.693328] mmc0: starting CMD13 arg b8740000 flags 00000015
[ 229.699890] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD13, argument 0xb8740000
[ 229.706726] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.712097] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 229.719818] mmc0: starting CMD25 arg 62738a00 flags 000000b5
[ 229.725921] mmc0: blksz 512 blocks 8 flags 00000100 tsac 300 ms nsac 0
[ 229.733154] mmc0: CMD12 arg 00000000 flags 0000049d
[ 229.738739] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD25, argument 0x62738a00
[ 229.745605] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.750946] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.756286] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD12, argument 0x00000000
[ 229.763183] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.832336] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.837707] mmc0: req done (CMD25): 0: 00000900 00000000 00000000 00000000
[ 229.844635] mmc0: 4096 bytes transferred: 0
[ 229.849182] mmc0: (CMD12): 0: 00000c00 00000000 00000000 00000000
[ 229.855773] mmc0: starting CMD13 arg b8740000 flags 00000015
[ 229.861480] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD13, argument 0xb8740000
[ 229.869171] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.874542] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 229.883026] mmc0: starting CMD25 arg 6273aa00 flags 000000b5
[ 229.889160] mmc0: blksz 512 blocks 8 flags 00000100 tsac 300 ms nsac 0
[ 229.896423] mmc0: CMD12 arg 00000000 flags 0000049d
[ 229.901733] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD25, argument 0x6273aa00
[ 229.909027] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.914367] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.919708] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD12, argument 0x00000000
[ 229.926605] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.931945] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 2
[ 229.937286] mmc0: req done (CMD25): 0: 00000900 00000000 00000000 00000000
[ 229.944213] mmc0: 4096 bytes transferred: 0
[ 229.948760] mmc0: (CMD12): 0: 00000c00 00000000 00000000 00000000
[ 229.959075] mmc0: starting CMD13 arg b8740000 flags 00000015
[ 229.965179] mmci-omap-hs mmci-omap-hs.0: mmc0: CMD13, argument 0xb8740000
[ 229.972045] mmci-omap-hs mmci-omap-hs.0: IRQ Status is 1
[ 229.977386] mmc0: req done (CMD13): 0: 00000900 00000000 00000000 00000000
[ 230.113403] mmci-omap-hs mmci-omap-hs.0: mmc_fclk: disabled
[ 599.822174] omapdss CORE: save context
Best regards,
Elvis Dowson
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: kernel BUG at drivers/mmc/core/sdio_io.c:28!
2010-10-27 13:24 kernel BUG at drivers/mmc/core/sdio_io.c:28! Elvis Dowson
@ 2010-10-27 14:05 ` Ohad Ben-Cohen
2010-10-27 14:16 ` Elvis Dowson
0 siblings, 1 reply; 4+ messages in thread
From: Ohad Ben-Cohen @ 2010-10-27 14:05 UTC (permalink / raw)
To: Elvis Dowson
Cc: Linux Kernel Mailing List, Benzy Gabay, Luciano Coelho,
Vishal Mahaveer, linux-mmc
Hi Elvis,
On Wed, Oct 27, 2010 at 3:24 PM, Elvis Dowson <elvis.dowson@mac.com> wrote:
> root@beagleboard:/wlan# insmod sdio.ko
...
> root@beagleboard:/wlan# insmod tiwlan_drv.ko
...
> root@beagleboard:/wlan# ifconfig tiwlan0 up
> [ 200.916687] TIWLAN: 2227.094325: pInitParams->RoamingScanning_2_4G_enable 0
> [ 200.924530] dashboard20_wifi_power: 1
> [ 200.943267] dashboard20_wifi_power: 0
> [ 200.947937] dashboard20_wifi_power: 1
> [ 201.020507] dashboard20_wifi_reset: 0
> [ 201.024200] dashboard20_wifi_set_carddetect: 1
> [ 201.029113] dashboard20_wifi_set_carddetect: Nobody to notify
> [ 202.027465] tiwlan_sdio_probe not yet called
> [ 202.031768] tiwlan_sdio_probe not yet called <---------------------------------------------
> [ 202.036590] kernel BUG at drivers/mmc/core/sdio_io.c:28!
> [ 202.041961] Unable to handle kernel NULL pointer dereference at virtual address 00000000
The BUG is most probably in the driver you are using, and not in the SDIO layer.
The driver is calling sdio_claim_host() without having a valid SDIO function.
Check out the 2 lines above the BUG message - you have a log there
complaining that your SDIO driver's probe function wasn't called.
You actually seem to have two problems here:
1. Your SDIO driver's probe function isn't called
2. Your WLAN driver is using the SDIO API without having a valid SDIO function
Ignoring the 2nd issue for now, you most probably have an integration
problem. Is the chip powered up correctly ? is it mmc rescanned after
it is powered up ? are you using the correct mmc controller ? have you
configured your mmc lines correctly (board muxing) ? etc..
Maybe you want to checkout the mainline wl1271 driver using Luca's
Beagle board patches :)
Regards,
Ohad.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: kernel BUG at drivers/mmc/core/sdio_io.c:28!
2010-10-27 14:05 ` Ohad Ben-Cohen
@ 2010-10-27 14:16 ` Elvis Dowson
2010-10-27 14:28 ` Ohad Ben-Cohen
0 siblings, 1 reply; 4+ messages in thread
From: Elvis Dowson @ 2010-10-27 14:16 UTC (permalink / raw)
To: Ohad Ben-Cohen; +Cc: Linux Kernel Mailing List
Hi Ohad,
On Oct 27, 2010, at 6:05 PM, Ohad Ben-Cohen wrote:
> You actually seem to have two problems here:
> 1. Your SDIO driver's probe function isn't called
> 2. Your WLAN driver is using the SDIO API without having a valid SDIO function
>
> Ignoring the 2nd issue for now, you most probably have an integration
> problem. Is the chip powered up correctly ?
Yes, I checked the VBAT, and VIO and WLAN Power Enable signals.
> is it mmc rescanned after it is powered up ?
I'm not sure about this. How can I check this? Could you point me to a code fragment?
> are you using the correct mmc controller ?
Yes, MMC2, as per the schematics.
> have you configured your mmc lines correctly (board muxing) ? etc..
Yes, I've setup the mux settings correctly.
> Maybe you want to checkout the mainline wl1271 driver using Luca's
> Beagle board patches :)
Ok, will try it once again.
Best regards,
Elvis
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: kernel BUG at drivers/mmc/core/sdio_io.c:28!
2010-10-27 14:16 ` Elvis Dowson
@ 2010-10-27 14:28 ` Ohad Ben-Cohen
0 siblings, 0 replies; 4+ messages in thread
From: Ohad Ben-Cohen @ 2010-10-27 14:28 UTC (permalink / raw)
To: Elvis Dowson; +Cc: Linux Kernel Mailing List
On Wed, Oct 27, 2010 at 4:16 PM, Elvis Dowson <elvis.dowson@mac.com> wrote:
>> Maybe you want to checkout the mainline wl1271 driver using Luca's
>> Beagle board patches :)
>
> Ok, will try it once again.
Try this first please.
Everything should just work out of the box, and when it does, you will
at least know your setup is OK.
Regards,
Ohad.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2010-10-27 14:28 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2010-10-27 13:24 kernel BUG at drivers/mmc/core/sdio_io.c:28! Elvis Dowson
2010-10-27 14:05 ` Ohad Ben-Cohen
2010-10-27 14:16 ` Elvis Dowson
2010-10-27 14:28 ` Ohad Ben-Cohen
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