At 12/20/2010 02:33 PM, Andreas Färber Write: > Am 20.12.2010 um 02:25 schrieb Wen Congyang: > >> 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... :) > > os-posix.c part looks sane to me, but what about Win32? Wouldn't it need > stub functions? I do not know whether there is same BUG on Windows.
I will add stub functions for Win32. > > Andreas >
