At 12/14/2010 05:23 PM, Wen Congyang Write: > At 2010-12-09 11:41, Wen Congyang Write: >> When I use the command 'virsh save' to save the domain state, >> I receive the following error message: >> operation failed: Migration unexpectedly failed. >> >> I debug the qemu by adding some printf(), and find the function >> pclose() returns -1. >> >> I use strace to trace qemu, the log is as the following: >> ====== >> close(17) = 0 >> --- SIGCHLD (Child exited) @ 0 (0) --- >> wait4(-1, NULL, WNOHANG, NULL) = 22016 >> rt_sigreturn(0) = 0 >> wait4(22016, 0x7fff7f1034fc, 0, NULL) = -1 ECHILD (No child processes) >> ====== >> >> We wait the child twice: one is in signal SIGCHLD handling and the other >> one is in pclose(). >> >> We should disable sigcld handling before calling pclose(). >> >> Signed-off-by: Wen Congyang <we...@cn.fujitsu.com> >> > Ping :) > >
Ping Again... :)
