Strange for me both 2MB and 1GB hugepages are failing LC_ALL=C PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin QEMU_AUDIO_DRV=spice /usr/bin/qemu-kvm -name generic -S -machine pc-i440fx-2.4,accel=kvm,usb=off,vmport=off,mem-merge=off -cpu SandyBridge -m 32768 -mem-prealloc -mem-path /dev/hugepages/libvirt/qemu -realtime mlock=on -smp 8,sockets=8,cores=1,threads=1 -uuid d8f61bc1-dd9a-470f-a26f-824e5e2b8359 -no-user-config -nodefaults -chardev socket,id=charmonitor,path=/var/lib/libvirt/qemu/generic.monitor,server,nowait -mon chardev=charmonitor,id=monitor,mode=control -rtc base=utc,driftfix=slew -global kvm-pit.lost_tick_policy=discard -no-hpet -no-shutdown -global PIIX4_PM.disable_s3=1 -global PIIX4_PM.disable_s4=1 -boot order=c,menu=on,strict=on -device ich9-usb-ehci1,id=usb,bus=pci.0,addr=0x6.0x7 -device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pci.0,multifunction=on,addr=0x6 -device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pci.0,addr=0x6.0x1 -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,addr=0x6.0x2 -device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x5 -drive file=/home/vcr/Appliance-4.6.0.0_5-vtnet0.img,if=none,id=drive-virtio-disk0,format=raw -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x8,drive=drive-virtio-disk0,id=virtio-disk0 -drive file=/dev/disk/by-id/scsi-36001405fdc0e99da3aa4b37b1403085c,if=none,id=drive-virtio-disk1,format=raw -device virtio-blk-pci,scsi=off,bus=pci.0,addr=0xa,drive=drive-virtio-disk1,id=virtio-disk1 -netdev tap,fd=23,id=hostnet0,vhost=on,vhostfd=24 -device virtio-net-pci,netdev=hostnet0,id=net0,mac=52:54:00:30:a0:c0,bus=pci.0,addr=0x3 -chardev pty,id=charserial0 -device isa-serial,chardev=charserial0,id=serial0 -chardev spicevmc,id=charchannel0,name=vdagent -device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 -spice port=5900,addr=127.0.0.1,disable-ticketing,image-compression=off,seamless-migration=on -device qxl-vga,id=video0,ram_size=67108864,vram_size=67108864,vgamem_mb=16,bus=pci.0,addr=0x2 -device intel-hda,id=sound0,bus=pci.0,addr=0x4 -device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 -chardev spicevmc,id=charredir0,name=usbredir -device usb-redir,chardev=charredir0,id=redir0 -chardev spicevmc,id=charredir1,name=usbredir -device usb-redir,chardev=charredir1,id=redir1 -device vfio-pci,host=aa:02.0,id=hostdev0,bus=pci.0,addr=0x9,rombar=0 -device vfio-pci,host=aa:02.1,id=hostdev1,bus=pci.0,addr=0xc,rombar=0 -device vfio-pci,host=aa:02.2,id=hostdev2,bus=pci.0,addr=0xd,rombar=0 -device vfio-pci,host=aa:02.3,id=hostdev3,bus=pci.0,addr=0xe,rombar=0 -device vfio-pci,host=aa:06.0,id=hostdev4,bus=pci.0,addr=0xb,rombar=0 -device vfio-pci,host=aa:06.1,id=hostdev5,bus=pci.0,addr=0xf,rombar=0 -device vfio-pci,host=aa:06.2,id=hostdev6,bus=pci.0,addr=0x10,rombar=0 -device vfio-pci,host=aa:06.3,id=hostdev7,bus=pci.0,addr=0x11,rombar=0 -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x7 -msg timestamp=on char device redirected to /dev/pts/2 (label charserial0)
(process:70685): GLib-ERROR **: gmem.c:100: failed to allocate 1048576 bytes 2016-05-31 16:20:39.371+0000: shutting down :q ^C [root@localhost vcr]# cat /proc/meminfo MemTotal: 396231416 kB MemFree: 318394500 kB MemAvailable: 318898920 kB Buffers: 3456 kB Cached: 595536 kB SwapCached: 0 kB Active: 272052 kB Inactive: 405868 kB Active(anon): 86760 kB Inactive(anon): 224 kB Active(file): 185292 kB Inactive(file): 405644 kB Unevictable: 16372 kB Mlocked: 16372 kB SwapTotal: 4194300 kB SwapFree: 4194300 kB Dirty: 0 kB Writeback: 0 kB AnonPages: 95336 kB Mapped: 139740 kB Shmem: 1688 kB Slab: 292452 kB SReclaimable: 154600 kB SUnreclaim: 137852 kB KernelStack: 12816 kB PageTables: 9432 kB NFS_Unstable: 0 kB Bounce: 0 kB WritebackTmp: 0 kB CommitLimit: 164561272 kB Committed_AS: 725316 kB VmallocTotal: 34359738367 kB VmallocUsed: 0 kB VmallocChunk: 0 kB HardwareCorrupted: 0 kB AnonHugePages: 0 kB CmaTotal: 0 kB CmaFree: 0 kB HugePages_Total: 32768 HugePages_Free: 32768 HugePages_Rsvd: 0 HugePages_Surp: 0 Hugepagesize: 2048 kB DirectMap4k: 227008 kB DirectMap2M: 4935680 kB DirectMap1G: 399507456 kB i tried qemu from preview 1G is failing in that too..dint try 2MB as yet.. On Fri, May 27, 2016 at 3:11 PM, Alex Williamson <alex.william...@redhat.com > wrote: > [re-adding vfio-users] > > On Fri, 27 May 2016 15:03:17 -0400 > chintu hetam <rometor...@gmail.com> wrote: > > > that worked Alex, sorry for the delay in response. > > so my memorybacking configuration was > > <memoryBacking> > > <hugepages> > > <page size='1048576' unit='KiB' nodeset='1'/> > > </hugepages> > > <nosharepages/> > > <locked/> > > </memoryBacking> > > i had to remove it completely in order to make it work. > > > > So confirming that hugepages and vfio has some issue, making VM to hang > in > > case of linux at startup and abruptly crashing from FreeBSD guest during > > startup. > > Can you see if the problem persists with updated QEMU from virt-preview: > > https://fedoraproject.org/wiki/Virtualization_Preview_Repository > > 2MB hugepages certainly works, I run it daily. 1GB hugepages sees less > attention, but I certainly thought it worked as well. Thanks, > > Alex > -- -chintu-
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