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Device disconnect cuases crash in musb_h_disable+0x68/0x134
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Thirupathi ch  
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 More options Aug 24 2011, 12:21 am
From: Thirupathi ch <thirupathi.c...@gmail.com>
Date: Wed, 24 Aug 2011 09:51:53 +0530
Local: Wed, Aug 24 2011 12:21 am
Subject: Device disconnect cuases crash in musb_h_disable+0x68/0x134
Print | Individual message | Show original | Report this message | Find messages by this author

Hi,

Device is connected in CDC_ACM interface class.
Trying to run the below commands.

 echo helloworld > /dev/ttyACM0 & on host
   cat /dev/ttyGS0 & on device
    vice versa.

Cable removal from device side causing the Kernel Crash.

# [ 1113.585205] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002
[ 1113.591186] hub 1-0:1.0: port 1, status 0100, change 0001, 12 Mb/s
[ 1113.597503] usb 1-1: USB disconnect, address 2
[ 1113.602050] usb 1-1: unregistering device
[ 1113.606353] usb 1-1: usb_disable_device nuking all URBs
[ 1113.611663] musb_hdrc musb_hdrc.0: shutdown urb d84fff20 ep2in-bulk
[ 1113.617919] musb_hdrc musb_hdrc.0: shutdown urb de8e06e0 ep2in-bulk
[ 1113.624206] musb_hdrc musb_hdrc.0: shutdown urb de8e05e0 ep2in-bulk
[ 1113.630462] musb_hdrc musb_hdrc.0: shutdown urb de8e0660 ep2in-bulk
[ 1113.636718] musb_hdrc musb_hdrc.0: shutdown urb de8e0d60 ep2in-bulk
[ 1113.642974] musb_hdrc musb_hdrc.0: shutdown urb de8e0de0 ep2in-bulk
[ 1113.649230] musb_hdrc musb_hdrc.0: shutdown urb de8e0e60 ep2in-bulk
[ 1113.655517] musb_hdrc musb_hdrc.0: shutdown urb de8e0ee0 ep2in-bulk
[ 1113.661773] musb_hdrc musb_hdrc.0: shutdown urb de8e00e0 ep2in-bulk
[ 1113.668029] musb_hdrc musb_hdrc.0: shutdown urb de8e0b60 ep2in-bulk
[ 1113.674285] musb_hdrc musb_hdrc.0: shutdown urb de8e0be0 ep2in-bulk
[ 1113.680541] musb_hdrc musb_hdrc.0: shutdown urb de8e0c60 ep2in-bulk
[ 1113.686828] musb_hdrc musb_hdrc.0: shutdown urb de8e0160 ep2in-bulk
[ 1113.693084] musb_hdrc musb_hdrc.0: shutdown urb de8e03e0 ep2in-bulk
[ 1113.699340] musb_hdrc musb_hdrc.0: shutdown urb de8e0360 ep2in-bulk
[ 1113.705596] musb_hdrc musb_hdrc.0: shutdown urb de8e0260 ep2in-bulk
[ 1113.711944] Unable to handle kernel NULL pointer dereference at virtual
address 00000010
[ 1113.720031] pgd = c0004000
[ 1113.722717] [00000010] *pgd=00000000
[ 1113.726318] Internal error: Oops: 17 [#1] PREEMPT SMP
[ 1113.731353] last sysfs file:
/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state
[ 1113.739166] Modules linked in:
[ 1113.742218] CPU: 1    Not tainted  (2.6.35.7+ #2)
[ 1113.746948] PC is at musb_h_disable+0x68/0x134
[ 1113.751403] LR is at musb_h_disable+0x44/0x134
[ 1113.755828] pc : [<c0300b50>]    lr : [<c0300b2c>]    psr: 60000093
[ 1113.755828] sp : df8dde98  ip : 00000000  fp : dfb7f800
[ 1113.767303] r10: 00000080  r9 : a0000013  r8 : 00000000
[ 1113.772521] r7 : df90f110  r6 : d8370220  r5 : d8310720  r4 : d8370220
[ 1113.779052] r3 : d8310730  r2 : 00000000  r1 : d8370220  r0 : 00000000
[ 1113.785552] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment
kernel
[ 1113.792968] Control: 10c57c7d  Table: 1eae804a  DAC: 00000017

Any inputs ?

Regards,
Thirupathi.ch


 
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Discussion subject changed to "Fwd: Device disconnect cuases crash in musb_h_disable+0x68/0x134" by Thirupathi ch
Thirupathi ch  
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 More options Aug 24 2011, 12:23 am
From: Thirupathi ch <thirupathi.chippakur...@sasken.com>
Date: Wed, 24 Aug 2011 09:53:47 +0530
Local: Wed, Aug 24 2011 12:23 am
Subject: Fwd: Device disconnect cuases crash in musb_h_disable+0x68/0x134
Print | Individual message | Show original | Report this message | Find messages by this author

Hi,

Device is connected in CDC_ACM interface class.
Trying to run the below commands.

 echo helloworld > /dev/ttyACM0 & on host
   cat /dev/ttyGS0 & on device
    vice versa.

Cable removal from device side causing the Kernel Crash.

# [ 1113.585205] hub 1-0:1.0: state 7 ports 1 chg 0000 evt 0002
[ 1113.591186] hub 1-0:1.0: port 1, status 0100, change 0001, 12 Mb/s
[ 1113.597503] usb 1-1: USB disconnect, address 2
[ 1113.602050] usb 1-1: unregistering device
[ 1113.606353] usb 1-1: usb_disable_device nuking all URBs
[ 1113.611663] musb_hdrc musb_hdrc.0: shutdown urb d84fff20 ep2in-bulk
[ 1113.617919] musb_hdrc musb_hdrc.0: shutdown urb de8e06e0 ep2in-bulk
[ 1113.624206] musb_hdrc musb_hdrc.0: shutdown urb de8e05e0 ep2in-bulk
[ 1113.630462] musb_hdrc musb_hdrc.0: shutdown urb de8e0660 ep2in-bulk
[ 1113.636718] musb_hdrc musb_hdrc.0: shutdown urb de8e0d60 ep2in-bulk
[ 1113.642974] musb_hdrc musb_hdrc.0: shutdown urb de8e0de0 ep2in-bulk
[ 1113.649230] musb_hdrc musb_hdrc.0: shutdown urb de8e0e60 ep2in-bulk
[ 1113.655517] musb_hdrc musb_hdrc.0: shutdown urb de8e0ee0 ep2in-bulk
[ 1113.661773] musb_hdrc musb_hdrc.0: shutdown urb de8e00e0 ep2in-bulk
[ 1113.668029] musb_hdrc musb_hdrc.0: shutdown urb de8e0b60 ep2in-bulk
[ 1113.674285] musb_hdrc musb_hdrc.0: shutdown urb de8e0be0 ep2in-bulk
[ 1113.680541] musb_hdrc musb_hdrc.0: shutdown urb de8e0c60 ep2in-bulk
[ 1113.686828] musb_hdrc musb_hdrc.0: shutdown urb de8e0160 ep2in-bulk
[ 1113.693084] musb_hdrc musb_hdrc.0: shutdown urb de8e03e0 ep2in-bulk
[ 1113.699340] musb_hdrc musb_hdrc.0: shutdown urb de8e0360 ep2in-bulk
[ 1113.705596] musb_hdrc musb_hdrc.0: shutdown urb de8e0260 ep2in-bulk
[ 1113.711944] Unable to handle kernel NULL pointer dereference at virtual
address 00000010
[ 1113.720031] pgd = c0004000
[ 1113.722717] [00000010] *pgd=00000000
[ 1113.726318] Internal error: Oops: 17 [#1] PREEMPT SMP
[ 1113.731353] last sysfs file:
/sys/devices/system/cpu/cpu0/cpufreq/stats/time_in_state
[ 1113.739166] Modules linked in:
[ 1113.742218] CPU: 1    Not tainted  (2.6.35.7+ #2)
[ 1113.746948] PC is at musb_h_disable+0x68/0x134
[ 1113.751403] LR is at musb_h_disable+0x44/0x134
[ 1113.755828] pc : [<c0300b50>]    lr : [<c0300b2c>]    psr: 60000093
[ 1113.755828] sp : df8dde98  ip : 00000000  fp : dfb7f800
[ 1113.767303] r10: 00000080  r9 : a0000013  r8 : 00000000
[ 1113.772521] r7 : df90f110  r6 : d8370220  r5 : d8310720  r4 : d8370220
[ 1113.779052] r3 : d8310730  r2 : 00000000  r1 : d8370220  r0 : 00000000
[ 1113.785552] Flags: nZCv  IRQs off  FIQs on  Mode SVC_32  ISA ARM  Segment
kernel
[ 1113.792968] Control: 10c57c7d  Table: 1eae804a  DAC: 00000017

Any inputs ?

Regards,
Thirupathi.ch


 
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DanM  
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 More options Aug 27 2011, 8:27 am
From: DanM <murpd...@gmail.com>
Date: Sat, 27 Aug 2011 05:27:32 -0700 (PDT)
Local: Sat, Aug 27 2011 8:27 am
Subject: Re: Fwd: Device disconnect cuases crash in musb_h_disable+0x68/0x134
Print | Individual message | Show original | Report this message | Find messages by this author
Do you have a kernel version?  And what about the panic back trace?
Need to have the stack

On Aug 23, 11:23 pm, Thirupathi ch


 
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