Il 28/03/2013 20:43, Seiji Aguchi ha scritto: > [Problem] > Currently, guest OS's messages can be logged to a local disk of host OS by > creating chadevs with options below. > -chardev file,id=charserial0,path=<log file's path> -device > isa-serial,chardev=chardevserial0,id=serial0 > > When a hardware failure happens in the disk, qemu-kvm can't create the > chardevs. > In this case, guest OS doesn't boot up. > > Actually, there are users who don't desire that guest OS goes down due to a > hardware failure of a log disk only. > Therefore, qemu should offer some way to boot guest OS up even if the log > disk is broken. > > [Solution] > This patch skips error checks in case where opening a log file and creating > chardev fail.
This kind of policy does not belong in QEMU. QEMU should always fail if it sees a problem. Your management tool should just open the file outside QEMU, and then use either /dev/fd/NN or /dev/null as the destination. Paolo
