From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 115451] New: memset hang on pci device memory using kvm
Date: Tue, 29 Mar 2016 09:59:44 +0000
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https://bugzilla.kernel.org/show_bug.cgi?id=115451
Bug ID: 115451
Summary: memset hang on pci device memory using kvm
Product: Virtualization
Version: unspecified
Kernel Version: RHEL - 2.6.18-308.el5
Hardware: Intel
OS: Linux
Tree: Mainline
Status: NEW
Severity: high
Priority: P1
Component: kvm
Assignee: virtualization_kvm@kernel-bugs.osdl.org
Reporter: gauravs.2010@gmail.com
Regression: No
i have host x86 based rhel system [kernel version - 2.6.18-308.el5]. On this I
am trying to boot up a debian amd64 image using qemu with kvm.
On my virtual os i have a pcimem application, through which I R/W any
configured memory on pci devices.
Issue is whenever i try to use memset in excess of 156 bytes in my pcimem
application to configure any pci device memory, call to memset hangs.
However, memcpy work fine in all scenarios.
memset works fine if boot my virtual os without kvm.
my kvm version is :
$/usr/libexec/qemu-kvm --help
QEMU PC emulator version 0.9.1 (kvm-83-maint-snapshot-20090205), Copyright (c)
2003-2008 Fabrice Bellard
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