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[Qemu-devel] question: guest will hang when call system function in migr
From: |
陈梁 |
Subject: |
[Qemu-devel] question: guest will hang when call system function in migration thread. |
Date: |
Thu, 04 Dec 2014 23:14:53 +0800 |
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?
- [Qemu-devel] question: guest will hang when call system function in migration thread.,
陈梁 <=