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Cause: sleep or hibernate the system while virtio-serial in use Consequence: Gust will not sleep or hibernate. Fix: In virtio serial power state management code. Result: Gust can be switched into S3/S4 mode while virtio-serial device is still in use.
Description of problem: Version-Release number of selected component (if applicable): 2.6.32-307.el6 qemu-kvm-rhev-0.12.1.2-2-312.el6 How reproducible: 80% Steps to Reproduce: 1.Start Guest With Virtio-serial-pci and virtserialport CLI:/usr/libexec/qemu-kvm -M rhel6.3.0 -cpu SandyBridge -enable-kvm -m 4096 -smp 4 -name win7-ser -uuid 95f5b887-b59f-48ab-9a7c-4024e31de64b -rtc base=localtime,driftfix=slew -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x4 -drive file=/rhev/data-center/0bbd954a-b9dd-4075-accc-73da9f3f4f9f/adeb4775-27dc-4e92-a720-6609719abd49/images/e5b7e352-5bc3-437a-8958-905019614b0e/aa772688-9948-4ffa-b50b-14c20911e73e,if=none,id=drive-ide0-0-0,format=raw,serial=e5b7e352-5bc3-437a-8958-905019614b0e,cache=none,werror=stop,rerror=stop,aio=threads -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0,bootindex=2 -drive file=/rhev/data-center/0bbd954a-b9dd-4075-accc-73da9f3f4f9f/7db7d438-49c0-403c-98bb-86e1eb368cbf/images/11111111-1111-1111-1111-111111111111/en_windows_7_ultimate_with_sp1_x64_dvd_618240.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw,serial= -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0,bootindex=1 -netdev tap,id=hostnet0 -device e1000,netdev=hostnet0,id=net0,mac=00:1a:4a:42:04:8b,bus=pci.0,addr=0x3,bootindex=3 -chardev socket,id=charchannel0,path=/tmp/tt,server,nowait -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.rhevm.vdsm -chardev socket,path=/tmp/tt1,server,nowait,id=charchannel1,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=com.redhat.spice.0 -chardev pty,id=charconsole0 -device virtconsole,chardev=charconsole0,id=console0 -spice port=5902,disable-ticketing -k en-us -vga qxl -global qxl-vga.vram_size=67108864 -monitor stdio -bios /usr/share/seabios/bios-pm.bin -fda /home/iso/7db7d438-49c0-403c-98bb-86e1eb368cbf/images/11111111-1111-1111-1111-111111111111/virtio-win.vfd 2.use scripts to transferring data from host to guest in a loop 3.during step2 s3 or hibernate guest 4.if doing s4 in step3 ,resume it Actual results: if doing s3 , qemu-kvm quit instead of comming into sleep state. if doing s4 ,after step4 ,guest failed to resume Expected results: Additional info:
Hi Mike, Could you please post the scripts and detailed instructions how to reproduce the problem? Thank you, Vadim.
Created attachment 612016 [details] Test Scripts
(In reply to comment #2) > Hi Mike, > > Could you please post the scripts and detailed instructions how to reproduce > the problem? > > Thank you, > Vadim. Steps: 1.Start CLI as comment #1 mentioned 2.in the guest #for((;;)) do python VirtIOChannel_guest_recieve.py com.redhat.rehvm.vdsm done 3.on the host #for((;;)) do python serial-host-send /tmp/tt sleep 2; echo `uuidgen` >> a.txt done 4 after step 3 ,sleep guest
Vadim/Yan ,Could you review Bug 869476? The Actual Results is exactly same Best regards, Mike
(In reply to comment #10) > Vadim/Yan ,Could you review Bug 869476? Hi Mike, I will check it. Cheers, Vadim. > The Actual Results is exactly same > > Best regards, > Mike
I'm unable to reproduce it with version virtio-win-prewhql-0.1-49. There was a fix to a similar scenario (guest->host and not host->guest like this bug) that might solved this bug as well. Mike, can you please test it again to confirm? Thanks.
(In reply to comment #12) > I'm unable to reproduce it with version virtio-win-prewhql-0.1-49. There was > a fix to a similar scenario (guest->host and not host->guest like this bug) > that might solved this bug as well. > > Mike, can you please test it again to confirm? Thanks. on build49 ,Bug 882795 blocks me to verify this bug. on Build 51 ,I did not hit this issue ,only find an new bug that is virtio-serial driver does not work after s3/s4,referring to Bug 902153. Based on above ,this bug can be considered fixed , Move Status to Verified.
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. http://rhn.redhat.com/errata/RHBA-2013-1729.html