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vnc: 0.899
device: 0.894
boot: 0.889
graphic: 0.887
semantic: 0.874
other: 0.873
socket: 0.868
network: 0.866
assembly: 0.852
KVM: 0.841
mistranslation: 0.827
instruction: 0.811

qemu-system-ppc : file  systems are not shutting down clean 




Launching a VM that has been shutdown gracefully ( via init 0)  typically requires fsck to run when it is started ;
This indications data integrity issues;


 The symptom can be seen by observing the fsck running when the VM restarted.

Install 14-04-LTS to a VM  and the issue can be seen ;



(trusty)vnc@jade-rev4:/home2/qemu$ cat vm1/go.sh
mymac="52:54:00:12:34:10"
T=` echo $mymac | cut -d: -f5,6 | sed s/\://`
mytap="tap$T"


tunctl  -d $mytap
tunctl  -t $mytap

 /usr/bin/qemu-system-ppc -M ppce500 -nographic -kernel jade-kernel.bin \
		-initrd jade-initrd-2.0.bin -m 1G -enable-kvm  \
		-drive file=jade-ubuntu-14.04.raw,if=virtio \
		-net nic,vlan=0,macaddr=$mymac \
		-net tap,vlan=0,ifname=$mytap,script=/usr/local/bin/qemu-ifup \
		-append "console=ttyS0 ssgyboot=break" \
	 	-no-shutdown -no-reboot -name `basename $fp`

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: qemu-system-ppc 2.0.0~rc1+dfsg-0ubuntu3.1
ProcVersionSignature: Ubuntu 3.13.0-24.46-powerpc-e500mc 3.13.9
Uname: Linux 3.13.0-24-powerpc-e500mc ppc
ApportVersion: 2.14.1-0ubuntu3
Architecture: powerpc
Date: Mon May 19 17:01:14 2014
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: qemu
UpgradeStatus: Upgraded to trusty on 2014-04-29 (20 days ago)



Can you explain what "ssgyboot=break" tells the kernel to do?

Could you upload the guest's /var/log/syslog after reboot?

Please show

echo $?

immediately after the qemu-system-ppc command has exited?

1. ssgyboot-break has no effect in the VM  kernel; It is only used by jade-initrd-2.0.bin  ; 

  kernel cmdline:

[    0.000000] pcpu-alloc: s28800 r8192 d16256 u53248 alloc=13*4096
[    0.000000] pcpu-alloc: [0] 0
[    0.000000] Built 1 zonelists in Zone order, mobility grouping on.  Total pag
es: 260608
[    0.000000] Kernel command line: (host)/boot/vmlinux-3.13.0-24-powerpc-e500mc
 root=/dev/vda1 ro quiet splash vt.handoff=7

2: see attached file . 

3. VM's do not exit from qemu-system-ppc ; see defect :   1317603 . 



/var/log/syslog   attached as syslog.onboot when file system is dirty ;

Since the VM terminated ; the device should have been umounted ;

I am thinking since the VM hasn't terminated due to defect 1317603 ,  qemu-system-ppc has to be terminated with kill  <pid>  which is not kill -9  ; I could see some inconsistencies with virtio device file not being sync'ed ; but the VM did unmount it;