系统是debain linux 4.19，模组是EM05-CE。
给模组上电以后，驱动一会加载了，一会又掉了。要1min左右才能稳定。
请问是什么原因？
[ 372.728507] usb 7-1: new high-speed USB device number 2 using xhci-hcd
[ 372.878512] usb 7-1: New USB device found, idVendor=2c7c, idProduct=0125, bcdDevice= 3.18
[ 372.878592] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 372.878616] usb 7-1: Product: LTE Module
[ 372.878637] usb 7-1: Manufacturer: Quectel Incorporated
[ 373.039259] option 7-1:1.0: GSM modem (1-port) converter detected
[ 373.040538] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 373.042131] option 7-1:1.1: GSM modem (1-port) converter detected
[ 373.044056] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 373.045867] option 7-1:1.2: GSM modem (1-port) converter detected
[ 373.047909] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 373.049998] option 7-1:1.3: GSM modem (1-port) converter detected
[ 373.051274] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 373.076603] cdc_mbim 7-1:1.4: cdc-wdm0: USB WDM device
[ 373.080001] cdc_mbim 7-1:1.4 wwan0: register 'cdc_mbim' at usb-xhci-hcd.5.auto-1, CDC MBIM, 6e:6d:41:0b:1c:a4
[ 381.982776] usb 7-1: USB disconnect, device number 2
[ 381.984105] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 381.984353] option 7-1:1.0: device disconnected
[ 381.990078] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 381.990302] option 7-1:1.1: device disconnected
[ 381.991739] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 381.991940] option 7-1:1.2: device disconnected
[ 381.996611] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 381.996986] option 7-1:1.3: device disconnected
[ 381.997595] cdc_mbim 7-1:1.4 wwan0: unregister 'cdc_mbim' usb-xhci-hcd.5.auto-1, CDC MBIM
[ 382.721677] usb 7-1: new high-speed USB device number 3 using xhci-hcd
[ 382.872756] usb 7-1: New USB device found, idVendor=2c7c, idProduct=0125, bcdDevice= 3.18
[ 382.872831] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 382.872855] usb 7-1: Product: LTE Module
[ 382.872875] usb 7-1: Manufacturer: Quectel Incorporated
[ 383.022001] option 7-1:1.0: GSM modem (1-port) converter detected
[ 383.023114] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 383.024385] option 7-1:1.1: GSM modem (1-port) converter detected
[ 383.026292] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 383.028004] option 7-1:1.2: GSM modem (1-port) converter detected
[ 383.030173] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 383.031701] option 7-1:1.3: GSM modem (1-port) converter detected
[ 383.033139] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 383.056750] cdc_mbim 7-1:1.4: cdc-wdm0: USB WDM device
[ 383.060109] cdc_mbim 7-1:1.4 wwan0: register 'cdc_mbim' at usb-xhci-hcd.5.auto-1, CDC MBIM, 6e:6d:41:0b:1c:a4
[ 387.590822] usb 7-1: USB disconnect, device number 3
[ 387.592381] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 387.592616] option 7-1:1.0: device disconnected
[ 387.594164] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 387.594399] option 7-1:1.1: device disconnected
[ 387.596347] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 387.596665] option 7-1:1.2: device disconnected
[ 387.598563] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 387.598983] option 7-1:1.3: device disconnected
[ 387.599619] cdc_mbim 7-1:1.4 wwan0: unregister 'cdc_mbim' usb-xhci-hcd.5.auto-1, CDC MBIM
[ 388.328096] usb 7-1: new high-speed USB device number 4 using xhci-hcd
[ 388.478232] usb 7-1: New USB device found, idVendor=2c7c, idProduct=0125, bcdDevice= 3.18
[ 388.478313] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 388.478338] usb 7-1: Product: LTE Module
[ 388.478359] usb 7-1: Manufacturer: Quectel Incorporated
[ 388.626888] option 7-1:1.0: GSM modem (1-port) converter detected
[ 388.628073] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 388.629679] option 7-1:1.1: GSM modem (1-port) converter detected
[ 388.630675] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 388.632524] option 7-1:1.2: GSM modem (1-port) converter detected
[ 388.633744] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 388.635647] option 7-1:1.3: GSM modem (1-port) converter detected
[ 388.636503] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 388.663209] cdc_mbim 7-1:1.4: cdc-wdm0: USB WDM device
[ 388.666542] cdc_mbim 7-1:1.4 wwan0: register 'cdc_mbim' at usb-xhci-hcd.5.auto-1, CDC MBIM, 6e:6d:41:0b:1c:a4
[ 393.199681] usb 7-1: USB disconnect, device number 4
[ 393.201218] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 393.201488] option 7-1:1.0: device disconnected
[ 393.203187] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 393.203412] option 7-1:1.1: device disconnected
[ 393.205738] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 393.206049] option 7-1:1.2: device disconnected
[ 393.207924] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 393.208243] option 7-1:1.3: device disconnected
[ 393.208830] cdc_mbim 7-1:1.4 wwan0: unregister 'cdc_mbim' usb-xhci-hcd.5.auto-1, CDC MBIM
[ 393.934572] usb 7-1: new high-speed USB device number 5 using xhci-hcd
[ 394.084674] usb 7-1: New USB device found, idVendor=2c7c, idProduct=0125, bcdDevice= 3.18
[ 394.084751] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 394.084775] usb 7-1: Product: LTE Module
[ 394.084795] usb 7-1: Manufacturer: Quectel Incorporated
[ 394.237244] option 7-1:1.0: GSM modem (1-port) converter detected
[ 394.239092] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 394.240443] option 7-1:1.1: GSM modem (1-port) converter detected
[ 394.241557] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 394.242976] option 7-1:1.2: GSM modem (1-port) converter detected
[ 394.244637] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 394.246058] option 7-1:1.3: GSM modem (1-port) converter detected
[ 394.247622] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 394.272951] cdc_mbim 7-1:1.4: cdc-wdm0: USB WDM device
[ 394.276530] cdc_mbim 7-1:1.4 wwan0: register 'cdc_mbim' at usb-xhci-hcd.5.auto-1, CDC MBIM, 6e:6d:41:0b:1c:a4
[ 398.814883] usb 7-1: USB disconnect, device number 5
[ 398.816292] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 398.816515] option 7-1:1.0: device disconnected
[ 398.818360] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 398.818611] option 7-1:1.1: device disconnected
[ 398.820300] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 398.820545] option 7-1:1.2: device disconnected
[ 398.822584] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 398.822877] option 7-1:1.3: device disconnected
[ 398.823441] cdc_mbim 7-1:1.4 wwan0: unregister 'cdc_mbim' usb-xhci-hcd.5.auto-1, CDC MBIM
[ 399.554379] usb 7-1: new high-speed USB device number 6 using xhci-hcd
[ 399.704630] usb 7-1: New USB device found, idVendor=2c7c, idProduct=0125, bcdDevice= 3.18
[ 399.704731] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 399.704766] usb 7-1: Product: LTE Module
[ 399.704795] usb 7-1: Manufacturer: Quectel Incorporated
[ 399.854930] option 7-1:1.0: GSM modem (1-port) converter detected
[ 399.856388] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 399.858034] option 7-1:1.1: GSM modem (1-port) converter detected
[ 399.860117] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 399.861445] option 7-1:1.2: GSM modem (1-port) converter detected
[ 399.862885] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 399.863961] option 7-1:1.3: GSM modem (1-port) converter detected
[ 399.865522] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 399.889514] cdc_mbim 7-1:1.4: cdc-wdm0: USB WDM device
[ 399.893338] cdc_mbim 7-1:1.4 wwan0: register 'cdc_mbim' at usb-xhci-hcd.5.auto-1, CDC MBIM, 6e:6d:41:0b:1c:a4
[ 404.440457] usb 7-1: USB disconnect, device number 6
[ 404.442194] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 404.442412] option 7-1:1.0: device disconnected
[ 404.447712] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 404.447966] option 7-1:1.1: device disconnected
[ 404.449455] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 404.449759] option 7-1:1.2: device disconnected
[ 404.451725] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 404.451983] option 7-1:1.3: device disconnected
[ 404.452544] cdc_mbim 7-1:1.4 wwan0: unregister 'cdc_mbim' usb-xhci-hcd.5.auto-1, CDC MBIM
[ 405.180936] usb 7-1: new high-speed USB device number 7 using xhci-hcd
[ 405.332124] usb 7-1: New USB device found, idVendor=2c7c, idProduct=0125, bcdDevice= 3.18
[ 405.332199] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 405.332223] usb 7-1: Product: LTE Module
[ 405.332244] usb 7-1: Manufacturer: Quectel Incorporated
[ 405.480405] option 7-1:1.0: GSM modem (1-port) converter detected
[ 405.481818] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 405.483307] option 7-1:1.1: GSM modem (1-port) converter detected
[ 405.485376] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 405.486940] option 7-1:1.2: GSM modem (1-port) converter detected
[ 405.488925] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 405.490657] option 7-1:1.3: GSM modem (1-port) converter detected
[ 405.492444] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 405.516185] cdc_mbim 7-1:1.4: cdc-wdm0: USB WDM device
[ 405.519780] cdc_mbim 7-1:1.4 wwan0: register 'cdc_mbim' at usb-xhci-hcd.5.auto-1, CDC MBIM, 6e:6d:41:0b:1c:a4
[ 410.066437] usb 7-1: USB disconnect, device number 7
[ 410.068105] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 410.068360] option 7-1:1.0: device disconnected
[ 410.070104] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 410.070387] option 7-1:1.1: device disconnected
[ 410.072179] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 410.072470] option 7-1:1.2: device disconnected
[ 410.074779] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 410.075084] option 7-1:1.3: device disconnected
[ 410.075745] cdc_mbim 7-1:1.4 wwan0: unregister 'cdc_mbim' usb-xhci-hcd.5.auto-1, CDC MBIM
[ 410.807325] usb 7-1: new high-speed USB device number 8 using xhci-hcd
[ 410.957674] usb 7-1: New USB device found, idVendor=2c7c, idProduct=0125, bcdDevice= 3.18
[ 410.957761] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 410.957784] usb 7-1: Product: LTE Module
[ 410.957805] usb 7-1: Manufacturer: Quectel Incorporated
[ 411.107889] option 7-1:1.0: GSM modem (1-port) converter detected
[ 411.109001] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 411.110285] option 7-1:1.1: GSM modem (1-port) converter detected
[ 411.112252] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 411.113788] option 7-1:1.2: GSM modem (1-port) converter detected
[ 411.115723] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 411.117376] option 7-1:1.3: GSM modem (1-port) converter detected
[ 411.119351] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 411.146387] cdc_mbim 7-1:1.4: cdc-wdm0: USB WDM device
[ 411.150425] cdc_mbim 7-1:1.4 wwan0: register 'cdc_mbim' at usb-xhci-hcd.5.auto-1, CDC MBIM, 6e:6d:41:0b:1c:a4
[ 415.693113] usb 7-1: USB disconnect, device number 8
[ 415.695258] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 415.695510] option 7-1:1.0: device disconnected
[ 415.697083] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 415.697489] option 7-1:1.1: device disconnected
[ 415.699330] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 415.699696] option 7-1:1.2: device disconnected
[ 415.702552] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 415.702834] option 7-1:1.3: device disconnected
[ 415.703454] cdc_mbim 7-1:1.4 wwan0: unregister 'cdc_mbim' usb-xhci-hcd.5.auto-1, CDC MBIM
[ 416.433949] usb 7-1: new high-speed USB device number 9 using xhci-hcd
[ 416.585063] usb 7-1: New USB device found, idVendor=2c7c, idProduct=0125, bcdDevice= 3.18
[ 416.585146] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 416.585170] usb 7-1: Product: LTE Module
[ 416.585191] usb 7-1: Manufacturer: Quectel Incorporated
[ 416.732528] option 7-1:1.0: GSM modem (1-port) converter detected
[ 416.733523] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 416.735216] option 7-1:1.1: GSM modem (1-port) converter detected
[ 416.736922] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 416.740880] option 7-1:1.2: GSM modem (1-port) converter detected
[ 416.742516] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 416.743562] option 7-1:1.3: GSM modem (1-port) converter detected
[ 416.744422] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 416.768727] cdc_mbim 7-1:1.4: cdc-wdm0: USB WDM device
[ 416.770370] cdc_mbim 7-1:1.4 wwan0: register 'cdc_mbim' at usb-xhci-hcd.5.auto-1, CDC MBIM, 6e:6d:41:0b:1c:a4
[ 421.319389] usb 7-1: USB disconnect, device number 9
[ 421.324345] option1 ttyUSB0: GSM modem (1-port) converter now disconnected from ttyUSB0
[ 421.324615] option 7-1:1.0: device disconnected
[ 421.326060] option1 ttyUSB1: GSM modem (1-port) converter now disconnected from ttyUSB1
[ 421.326261] option 7-1:1.1: device disconnected
[ 421.332461] option1 ttyUSB2: GSM modem (1-port) converter now disconnected from ttyUSB2
[ 421.332720] option 7-1:1.2: device disconnected
[ 421.333932] option1 ttyUSB3: GSM modem (1-port) converter now disconnected from ttyUSB3
[ 421.334118] option 7-1:1.3: device disconnected
[ 421.334527] cdc_mbim 7-1:1.4 wwan0: unregister 'cdc_mbim' usb-xhci-hcd.5.auto-1, CDC MBIM
[ 422.057104] usb 7-1: new high-speed USB device number 10 using xhci-hcd
[ 422.208174] usb 7-1: New USB device found, idVendor=2c7c, idProduct=0125, bcdDevice= 3.18
[ 422.208251] usb 7-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
[ 422.208275] usb 7-1: Product: LTE Module
[ 422.208296] usb 7-1: Manufacturer: Quectel Incorporated
[ 422.358225] option 7-1:1.0: GSM modem (1-port) converter detected
[ 422.359555] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB0
[ 422.361338] option 7-1:1.1: GSM modem (1-port) converter detected
[ 422.363278] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB1
[ 422.365391] option 7-1:1.2: GSM modem (1-port) converter detected
[ 422.367146] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB2
[ 422.369368] option 7-1:1.3: GSM modem (1-port) converter detected
[ 422.371686] usb 7-1: GSM modem (1-port) converter now attached to ttyUSB3
[ 422.398902] cdc_mbim 7-1:1.4: cdc-wdm0: USB WDM device
[ 422.402463] cdc_mbim 7-1:1.4 wwan0: register 'cdc_mbim' at usb-xhci-hcd.5.auto-1, CDC MBIM, 6e:6d:41:0b:1c:a4