021b3788d5
* [vm build] force Linux to drop cache before calling kvm KVM need to allocate 2G memory for this build. The system memory might be occupied by cache at the moment and doesn't have 2G chunk to give out. Forcing Kernel to drop cache to boost the chance of getting 2G memory. Signed-off-by: Ying Xie <ying.xie@microsoft.com> * [make] add option to enable/disable VS build memory preparation Signed-off-by: Ying Xie <ying.xie@microsoft.com>
87 lines
1.7 KiB
Bash
Executable File
87 lines
1.7 KiB
Bash
Executable File
#!/bin/bash -ex
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# Copyright (C) 2014 Curt Brune <curt@cumulusnetworks.com>
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#
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# SPDX-License-Identifier: GPL-2.0
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MEM=2048
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DISK=$1
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ONIE_RECOVERY_ISO=$2
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INSTALLER=$3
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DISK_SIZE=$4
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INSTALLER_DISK="./sonic-installer.img"
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# VM will listen on telnet port $KVM_PORT
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KVM_PORT=9000
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on_exit()
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{
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rm -f $kvm_log
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}
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kvm_log=$(mktemp)
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trap on_exit EXIT
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create_disk()
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{
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echo "Creating SONiC kvm disk : $DISK of size $DISK_SIZE GB"
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qemu-img create -f qcow2 $DISK ${DISK_SIZE}G
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}
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prepare_installer_disk()
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{
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fallocate -l 1024M $INSTALLER_DISK
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mkfs.vfat $INSTALLER_DISK
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tmpdir=$(mktemp -d)
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mount -o loop $INSTALLER_DISK $tmpdir
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cp $INSTALLER $tmpdir/onie-installer.bin
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umount $tmpdir
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}
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create_disk
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prepare_installer_disk
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echo "Prepare memory for KVM build: $vs_build_prepare_mem"
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free -m
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if [[ "$vs_build_prepare_mem" == "yes" ]]; then
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# Force o.s. to drop cache and compact memory so that KVM can get 2G memory
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sudo bash -c 'echo 1 > /proc/sys/vm/drop_caches'
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sudo bash -c 'echo 1 > /proc/sys/vm/compact_memory'
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free -m
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fi
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/usr/bin/kvm -m $MEM \
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-name "onie" \
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-boot "order=cd,once=d" -cdrom "$ONIE_RECOVERY_ISO" \
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-device e1000,netdev=onienet \
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-netdev user,id=onienet,hostfwd=:0.0.0.0:3041-:22 \
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-vnc 0.0.0.0:0 \
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-vga std \
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-drive file=$DISK,media=disk,if=virtio,index=0 \
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-drive file=$INSTALLER_DISK,if=virtio,index=1 \
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-serial telnet:127.0.0.1:$KVM_PORT,server > $kvm_log 2>&1 &
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kvm_pid=$!
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sleep 2.0
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[ -d "/proc/$kvm_pid" ] || {
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echo "ERROR: kvm died."
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cat $kvm_log
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exit 1
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}
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echo "to kill kvm: sudo kill $kvm_pid"
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./check_install.py -u $SONIC_USERNAME -P $PASSWD -p $KVM_PORT
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kill $kvm_pid
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exit 0
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