android - Android 中的 Binder 事务失败

Question

我的 beagle board 上出现 Binder 错误，如下所示？如何找出导致这些错误的进程？

binder: send failed reply for transaction 4800, target dead                     
binder: 1112:1750 transaction failed 29189, size 1528-4                         
binder: send failed reply for transaction 6233, target dead                     
binder: 1112:1112 transaction failed 29189, size 1332-4                         
binder: send failed reply for transaction 4792, target dead                     
binder: 1112:1638 transaction failed 29189, size 1332-4                         
binder: send failed reply for transaction 6232, target dead   

Answer 1

在我看来，你可以在 common/drivers/staging/android/binder.c 中找到答案所以我认为在你的情况下日志意味着:

printk(KERN_INFO "binder: %d:%d transaction failed %d, size"
            "%zd-%zd\n",
           proc->pid, thread->pid, return_error,
           tr->data_size, tr->offsets_size);