Hi all
guest will hang when call system function in migration thread. The cpu usage of
vcpu thread is 100%.
the code like this:
static void *migration_thread(void *opaque)
{
MigrationState *s = opaque;
int64_t initial_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME);
int64_t setup_start = qemu_clock_get_ms(QEMU_CLOCK_HOST);
int64_t initial_bytes = 0;
int64_t max_size = 0;
int64_t start_time = initial_time;
bool old_vm_running = false;
//test code
system("df -h”);
qemu_savevm_state_begin(s->file, &s->params);
…
Is it anything wrong? or it is not allow to call system in migration thread?
