[Mbm-devel] F5521gw card drop every minutes with mbm-gpsd loaded

[Loïc NINGRE <loic.ningre@gm...>]

Hello !

I would understand why my F5521gw card drop every minutes when I load 
mbm-gpsd. I use ubuntu 12.04 on Lenovo x220.
When mbm-gpsd isn´t loaded the card works perfect.

# dmesg
......
[ 5978.894916] usb 2-1.4: USB disconnect, device number 5
[ 5978.898225] cdc_ncm 2-1.4:1.6: usb0: unregister 'cdc_ncm' 
usb-0000:00:1d.0-1.4, CDC NCM
[ 5978.898950] ehci_hcd 0000:00:1d.0: dma_pool_free buffer-128, 
ffff880036c11000/36c11000 (bad dma)
[ 5978.926622] ehci_hcd 0000:00:1d.0: dma_pool_free buffer-128, 
ffff880036c10000/36c10000 (bad dma)
[ 5979.349776] usb 2-1.4: new high-speed USB device number 6 using ehci_hcd
[ 5979.488565] generic-usb: probe of 0003:0BDB:1912.0001 failed with 
error -71
[ 5979.488938] usb 2-1.4: USB disconnect, device number 6
[ 5985.527826] usb 2-1.4: new high-speed USB device number 7 using ehci_hcd
[ 5985.666557] generic-usb: probe of 0003:0BDB:1912.0002 failed with 
error -71
[ 5985.690871] usb 2-1.4: USB disconnect, device number 7
[ 5987.419554] usb 2-1.4: new high-speed USB device number 8 using ehci_hcd
[ 5987.551069] cdc_acm 2-1.4:1.1: ttyACM0: USB ACM device
[ 5987.553640] cdc_acm 2-1.4:1.3: ttyACM1: USB ACM device
[ 5987.562533] cdc_wdm 2-1.4:1.5: cdc-wdm0: USB WDM device
[ 5987.580947] usb 2-1.4: MAC-Address: 0x02:0x80:0x37:0xec:0x02:0x00
[ 5987.582095] cdc_ncm 2-1.4:1.6: usb0: register 'cdc_ncm' at 
usb-0000:00:1d.0-1.4, CDC NCM, 02:80:37:ec:02:00
[ 5987.583117] cdc_wdm 2-1.4:1.8: cdc-wdm1: USB WDM device
[ 5987.583606] cdc_acm 2-1.4:1.9: ttyACM2: USB ACM device
[ 5987.617098] cdc_ncm: usb0: network connection: disconnected
[ 5987.617353] ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 5987.617721] ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 5988.275271] ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 5988.279046] ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 5988.279563] ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 5988.930166] cdc_wdm 2-1.4:1.5: wdm_int_callback - 0 bytes
.......

Can I solve those problems of bad dma ?
Would you please give me help ?

Regards

Thank you

[Mbm-devel] F5521gw card drop every minutes with mbm-gpsd loaded

[Loïc NINGRE <loic.ningre@gm...>]

Hello !

I would understand why my F5521gw card drop every minutes when I load 
mbm-gpsd. I use ubuntu 12.04 on Lenovo x220.
When mbm-gpsd isn´t loaded the card works perfect.

# dmesg
......
[ 5978.894916] usb 2-1.4: USB disconnect, device number 5
[ 5978.898225] cdc_ncm 2-1.4:1.6: usb0: unregister 'cdc_ncm' 
usb-0000:00:1d.0-1.4, CDC NCM
[ 5978.898950] ehci_hcd 0000:00:1d.0: dma_pool_free buffer-128, 
ffff880036c11000/36c11000 (bad dma)
[ 5978.926622] ehci_hcd 0000:00:1d.0: dma_pool_free buffer-128, 
ffff880036c10000/36c10000 (bad dma)
[ 5979.349776] usb 2-1.4: new high-speed USB device number 6 using ehci_hcd
[ 5979.488565] generic-usb: probe of 0003:0BDB:1912.0001 failed with 
error -71
[ 5979.488938] usb 2-1.4: USB disconnect, device number 6
[ 5985.527826] usb 2-1.4: new high-speed USB device number 7 using ehci_hcd
[ 5985.666557] generic-usb: probe of 0003:0BDB:1912.0002 failed with 
error -71
[ 5985.690871] usb 2-1.4: USB disconnect, device number 7
[ 5987.419554] usb 2-1.4: new high-speed USB device number 8 using ehci_hcd
[ 5987.551069] cdc_acm 2-1.4:1.1: ttyACM0: USB ACM device
[ 5987.553640] cdc_acm 2-1.4:1.3: ttyACM1: USB ACM device
[ 5987.562533] cdc_wdm 2-1.4:1.5: cdc-wdm0: USB WDM device
[ 5987.580947] usb 2-1.4: MAC-Address: 0x02:0x80:0x37:0xec:0x02:0x00
[ 5987.582095] cdc_ncm 2-1.4:1.6: usb0: register 'cdc_ncm' at 
usb-0000:00:1d.0-1.4, CDC NCM, 02:80:37:ec:02:00
[ 5987.583117] cdc_wdm 2-1.4:1.8: cdc-wdm1: USB WDM device
[ 5987.583606] cdc_acm 2-1.4:1.9: ttyACM2: USB ACM device
[ 5987.617098] cdc_ncm: usb0: network connection: disconnected
[ 5987.617353] ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 5987.617721] ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 5988.275271] ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 5988.279046] ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 5988.279563] ADDRCONF(NETDEV_UP): usb0: link is not ready
[ 5988.930166] cdc_wdm 2-1.4:1.5: wdm_int_callback - 0 bytes
.......

Can I solve those problems of bad dma ?
Would you please give me help ?

Regards

Thank you