giantvm / linux-dsm Goto Github PK
View Code? Open in Web Editor NEWSource code of KVM
License: Other
Source code of KVM
License: Other
Hi,
I just hit this error when compiling:
$ make
...
In file included from arch/x86/kvm/dsm.h:6:0,
from arch/x86/kvm/x86.c:25:
arch/x86/kvm/dsm-util.h: In function ‘jhash32’:
arch/x86/kvm/dsm-util.h:90:9: error: implicit declaration of function ‘jhash’; did you mean ‘jhash32’? [-Werror=implicit-function-declaration]
return jhash(s, n, JHASH_INITVAL);
^~~~~
jhash32
arch/x86/kvm/dsm-util.h:90:21: error: ‘JHASH_INITVAL’ undeclared (first use in this function); did you mean ‘DSM_INITIAL’?
return jhash(s, n, JHASH_INITVAL);
^~~~~~~~~~~~~
DSM_INITIAL
arch/x86/kvm/dsm-util.h:90:21: note: each undeclared identifier is reported only once for each function it appears in
I managed to fix it with this patch:
diff --git a/arch/x86/kvm/dsm-util.h b/arch/x86/kvm/dsm-util.h
index 7508d950..4cdc8d44 100644
--- a/arch/x86/kvm/dsm-util.h
+++ b/arch/x86/kvm/dsm-util.h
@@ -2,6 +2,7 @@
#define ARCH_X86_KVM_DSM_UTIL_H
#include <linux/kvm_host.h>
+#include <linux/jhash.h>
#define DSM_INITIAL 0
#define DSM_INVALID 1
Also, I am trying to compile the kernel using TCP/IP, so this macro is set:
#define USE_KTCP_NETWORK
Is this the right approach?
Hi, we prepared an environemt of two phy hosts connected with each other by a pair of Mellanox CX-3 pro with a QFSP 40G cable.
We have test the rdma latency between each server by perftest (got 6us/iter about 192.168.100.11/24 pingpong 192.168.100.12/24). However, when we launch the giantVM among the two servers, we got the error "KVM_DSM_MEMCPY failed -22" foreground. Besides, we check the logs by dmesg, and got many errors which shown in below image.
Can any one help us to fix it? thank you.
besides, our shell script for launcing the giantVM is shown as below.
in 192.168.100.11:
./QEMU/x86_64-softmmu/qemu-system-x86_64 --nographic -hda ubuntu-server.img -cpu host -machine kernel-irqchip=off -smp 4 -m 4096 --enable-kvm -serial mon:stdio -local-cpu 2,start=0,iplist="192.168.100.11 192.168.100.12" -vnc :0
in 192.168.100.12:
./QEMU/x86_64-softmmu/qemu-system-x86_64 --nographic -hda ubuntu-server.img -cpu host -machine kernel-irqchip=off -smp 4 -m 4096 --enable-kvm -serial mon:stdio -local-cpu 2,start=2,iplist="192.168.100.11 192.168.100.12"
Hi,
I am trying to compile using the TCP/IP for network communication. However, when I compile I get this error:
$ make
...
arch/x86/kvm/krdma.c: In function ‘krdma_connect_single’:
arch/x86/kvm/krdma.c:325:2: warning: ignoring return value of ‘kstrtol’, declared with attribute warn_unused_result [-Wunused-result]
kstrtol(port, 10, &portdec);
^~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kvm/krdma.c: In function ‘krdma_listen’:
arch/x86/kvm/krdma.c:550:2: warning: ignoring return value of ‘kstrtol’, declared with attribute warn_unused_result [-Wunused-result]
kstrtol(port, 10, &portdec);
^~~~~~~~~~~~~~~~~~~~~~~~~~~
CC arch/x86/kvm/dsm.o
arch/x86/kvm/dsm.c: In function ‘kvm_dsm_init’:
arch/x86/kvm/dsm.c:573:19: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
network_ops.send = ktcp_send;
^
arch/x86/kvm/dsm.c:574:22: error: assignment from incompatible pointer type [-Werror=incompatible-pointer-types]
network_ops.receive = ktcp_receive;
^
arch/x86/kvm/dsm.c:553:2: warning: ignoring return value of ‘copy_from_user’, declared with attribute warn_unused_result [-Wunused-result]
copy_from_user(user_cluster_iplist, params->cluster_iplist, sizeof(void *) *
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
params->cluster_iplist_len);
~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/x86/kvm/dsm.c:561:3: warning: ignoring return value of ‘strncpy_from_user’, declared with attribute warn_unused_result [-Wunused-result]
strncpy_from_user(kvm->arch.cluster_iplist[i], user_cluster_iplist[i], 20);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
scripts/Makefile.build:293: recipe for target 'arch/x86/kvm/dsm.o' failed
make[2]: *** [arch/x86/kvm/dsm.o] Error 1
scripts/Makefile.build:544: recipe for target 'arch/x86/kvm' failed
make[1]: *** [arch/x86/kvm] Error 2
Makefile:995: recipe for target 'arch/x86' failed
make: *** [arch/x86] Error 2
Any idea on the issue?
A declarative, efficient, and flexible JavaScript library for building user interfaces.
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
An Open Source Machine Learning Framework for Everyone
The Web framework for perfectionists with deadlines.
A PHP framework for web artisans
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
Some thing interesting about web. New door for the world.
A server is a program made to process requests and deliver data to clients.
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Some thing interesting about visualization, use data art
Some thing interesting about game, make everyone happy.
We are working to build community through open source technology. NB: members must have two-factor auth.
Open source projects and samples from Microsoft.
Google ❤️ Open Source for everyone.
Alibaba Open Source for everyone
Data-Driven Documents codes.
China tencent open source team.