Christopher Collins created MYNEWT-708: ------------------------------------------
Summary: Lock scheduler during init Key: MYNEWT-708 URL: https://issues.apache.org/jira/browse/MYNEWT-708 Project: Mynewt Issue Type: Bug Reporter: Christopher Collins Fix For: v1_1_0_rel Now that main() runs after the OS is started, tasks may preempt the main task as soon as they are created. If such a task expects all packages to have been initialized, then a crash or other unpredictable behavior will occur. Here is an example crash that happens when the BLE link layer task runs before the host package is fully initialized: {noformat} Program received signal SIGTRAP, Trace/breakpoint trap. __assert_func (file=<optimized out>, line=<optimized out>, func=<optimized out>, e=<optimized out>) at kernel/os/src/arch/cortex_m4/os_fault.c:137 137 asm("bkpt"); (gdb) whe #0 __assert_func (file=<optimized out>, line=<optimized out>, func=<optimized out>, e=<optimized out>) at kernel/os/src/arch/cortex_m4/os_fault.c:137 #1 0x00019f2e in ble_hci_trans_ll_evt_tx (hci_ev=<optimized out>) at net/nimble/transport/ram/src/ble_hci_ram.c:91 #2 0x0000ea5e in ble_ll_hci_send_noop () at net/nimble/controller/src/ble_ll_hci.c:106 #3 0x0000a438 in ble_ll_task (arg=<optimized out>) at net/nimble/controller/src/ble_ll.c:1008 #4 0x00000000 in ?? () (gdb) #0 __assert_func (file=<optimized out>, line=<optimized out>, func=<optimized out>, e=<optimized out>) at kernel/os/src/arch/cortex_m4/os_fault.c:137 #1 0x00019f2e in ble_hci_trans_ll_evt_tx (hci_ev=<optimized out>) at net/nimble/transport/ram/src/ble_hci_ram.c:91 #2 0x0000ea5e in ble_ll_hci_send_noop () at net/nimble/controller/src/ble_ll_hci.c:106 #3 0x0000a438 in ble_ll_task (arg=<optimized out>) at net/nimble/controller/src/ble_ll.c:1008 #4 0x00000000 in ?? () {noformat} -- This message was sent by Atlassian JIRA (v6.3.15#6346)