Bug 824802

Summary:	data lost when transfer from host to guest with virtio serial
Product:	Red Hat Enterprise Linux 6	Reporter:	Suqin Huang <shuang>
Component:	qemu-kvm	Assignee:	Amit Shah <amit.shah>
Status:	CLOSED DUPLICATE	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	6.3	CC:	acathrow, areis, bsarathy, dyasny, juzhang, mkenneth, virt-maint
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-05-28 21:24:53 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Suqin Huang 2012-05-24 10:01:25 UTC

Description of problem:


Version-Release number of selected component (if applicable):
qemu-kvm-0.12.1.2-2.293.el6.x86_64

How reproducible:
100%

Steps to Reproduce:
1. cmd
-device virtio-serial-pci,id=virtio-serial-pci0 \

-chardev socket,path=/tmp/virtio-console-3XQGtS0,id=vs0,server,nowait \
-device virtserialport,chardev=vs0,name=serialport-0,id=serialport-0,bus=virtio-serial-pci0.0 \

-chardev socket,path=/tmp/virtio-console-3XQGtS1,id=vs1,server,nowait \
-device virtserialport,chardev=vs1,name=serialport-1,id=serialport-1,bus=virtio-serial-pci0.0

2. in host
# dd if=/dev/zero of=/root/file bs=1M count=1024 
# echo /root/file | nc -U /tmp/virtio-console-3XQGtS0

3. in guest
# cat /dev/virtio-ports/serialport-0 > bak
  
Actual results:
# md5sum bak 
4220a50fc53acd4abdea136bc42ec656  bak

# md5sum file 
cd573cfaace07e7949bc0c46028904ff  file

Expected results:


Additional info:

Comment 1 juzhang 2012-05-24 11:33:43 UTC

FYI, similar bugs
Bug 677886 - MD5 of file is different from the original one after transferred via virtio serial 
Bug 702611 - Some files were not integrated after transferring four files from host to guest

Comment 2 Ademar Reis 2012-05-28 21:24:53 UTC

Appears to be the same issue reported in Bug 677886. I've added your testcase there, so closing this as a dupe.

*** This bug has been marked as a duplicate of bug 677886 ***