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[britus]

PRETTY_NAME="Debian GNU/Linux 9 (stretch)"
NAME="Debian GNU/Linux"
VERSION_ID="9"
VERSION="9 (stretch)"
VERSION_CODENAME=stretch
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

WaveShare 4G-Hat
: Manufacture ID...: SIMCOM INCORPORATED
: Model identifier.: SIMCOM_SIM7600G-H
: Firmware revision: LE20B02SIM7600M22
: Firmware modem...: B02V03 / MDM9x07_LE20_LWG_22_V1.02_191213

Sep 28 11:30:48 tinkerboard carmonitor[1597]: DHCPCLT: State Selecting
Sep 28 11:30:50 tinkerboard kernel: [ 223.179869] ------------[ cut here ]------------
Sep 28 11:30:50 tinkerboard kernel: [ 223.179903] WARNING: CPU: 0 PID: 1650 at net/sched/sch_generic.c:306 dev_watchdog+0x1b0/0x238()
Sep 28 11:30:50 tinkerboard kernel: [ 223.179916] NETDEV WATCHDOG: wwan0 (qmi_wwan): transmit queue 0 timed out
Sep 28 11:30:50 tinkerboard kernel: [ 223.179926] Modules linked in: 8723bs
Sep 28 11:30:50 tinkerboard kernel: [ 223.179952] CPU: 0 PID: 1650 Comm: iomon Not tainted 4.4.132+ #15
Sep 28 11:30:50 tinkerboard kernel: [ 223.179962] Hardware name: Rockchip (Device Tree)
Sep 28 11:30:50 tinkerboard kernel: [ 223.179995] [] (unwind_backtrace) from [] (show_stack+0x20/0x24)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180018] [] (show_stack) from [] (dump_stack+0x80/0xa0)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180040] [] (dump_stack) from [] (warn_slowpath_common+0x98/0xc4)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180059] [] (warn_slowpath_common) from [] (warn_slowpath_fmt+0x40/0x48)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180080] [] (warn_slowpath_fmt) from [] (dev_watchdog+0x1b0/0x238)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180105] [] (dev_watchdog) from [] (call_timer_fn+0xb8/0x228)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180126] [] (call_timer_fn) from [] (run_timer_softirq+0x278/0x2f0)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180146] [] (run_timer_softirq) from [] (__do_softirq+0x168/0x3c8)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180166] [] (__do_softirq) from [] (irq_exit+0x94/0xf8)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180188] [] (irq_exit) from [] (__handle_domain_irq+0xb4/0xf0)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180208] [] (__handle_domain_irq) from [] (gic_handle_irq+0x60/0xa4)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180226] [] (gic_handle_irq) from [] (__irq_svc+0x54/0x90)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180237] Exception stack(0xeab2dcd0 to 0xeab2dd18)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180252] dcc0: eab2dd3c 00000001 ffd7ec00 c14fd324
Sep 28 11:30:50 tinkerboard kernel: [ 223.180270] dce0: eab2dd3c 0000059f ede02000 edda0000 ede022e0 edda0210 00000001 eab2dd34
Sep 28 11:30:50 tinkerboard kernel: [ 223.180285] dd00: eab2dd38 eab2dd20 c05f55d0 c05f5574 a0030013 ffffffff
Sep 28 11:30:50 tinkerboard kernel: [ 223.180307] [] (__irq_svc) from [] (read_current_timer+0x24/0x48)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180328] [] (read_current_timer) from [] (__timer_delay+0x38/0x5c)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180348] [] (__timer_delay) from [] (__timer_const_udelay+0x2c/0x34)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180368] [] (__timer_const_udelay) from [] (__timer_udelay+0x20/0x28)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180392] [] (__timer_udelay) from [] (spi_transfer_one_message+0x344/0x49c)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180415] [] (spi_transfer_one_message) from [] (__spi_pump_messages+0x6b4/0x6f4)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180436] [] (__spi_pump_messages) from [] (__spi_sync+0x220/0x28c)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180457] [] (__spi_sync) from [] (spi_sync+0x1c/0x20)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180477] [] (spi_sync) from [] (spidev_sync+0x7c/0x90)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180497] [] (spidev_sync) from [] (spidev_ioctl+0x738/0x82c)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180520] [] (spidev_ioctl) from [] (do_vfs_ioctl+0x56c/0x690)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180540] [] (do_vfs_ioctl) from [] (SyS_ioctl+0x5c/0x84)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180559] [] (SyS_ioctl) from [] (ret_fast_syscall+0x0/0x48)
Sep 28 11:30:50 tinkerboard kernel: [ 223.180573] ---[ end trace e86b9d1108909110 ]---
Sep 28 11:30:50 tinkerboard carmonitor[1597]: DHCPCLT: State Init