At 09/27/2012 06:35 PM, Vasilis Liaskovitis Wrote: > On Thu, Sep 27, 2012 at 02:37:14PM +0800, Wen Congyang wrote: >> Hi Vasilis Liaskovitis >> >> At 09/27/2012 12:46 AM, Vasilis Liaskovitis Wrote: >>> Hi, >>> >>> I am testing 3.6.0-rc7 with this v9 patchset plus more recent fixes [1],[2],[3] >>> Running in a guest (qemu+seabios from [4]). >>> CONFIG_SLAB=y >>> CONFIG_DEBUG_SLAB=y >>> >>> After succesfull hot-add and online, I am doing a hot-remove with "echo 1 > /sys/bus/acpi/devices/PNP/eject" >>> When I do the OSPM-eject, I often get slab corruption in "acpi-state" cache, or in other caches >> >> I can't reproduce this problem. Can you provide the following information: >> 1. config file >> 2. qemu's command line >> >> You said you did OSPM-eject. Do you mean write 1 to /sys/bus/acpi/devices/PNP0C80:XX/eject? > yes. > > example qemu command line with one dimm: > > "/opt/qemu-kvm-memhp/bin/qemu-system-x86_64 -bios > /opt/extra/vliaskov/devel/seabios-upstream/out/bios.bin -enable-kvm -M pc -smp > 4,maxcpus=8 -cpu host -m 2048 -drive file=/opt/extra/debian-template.raw,if=none,id=drive-virtio-disk0,format=raw > -device virtio-blk-pci,bus=pci.0,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 > -vga cirrus -netdev type=tap,id=guest0,vhost=on -device virtio-net-pci,netdev=guest0 > -monitor unix:/tmp/qemu.monitor11,server,nowait -chardev stdio,id=seabios -device > isa-debugcon,iobase=0x402,chardev=seabios > -dimm id=n0,size=512M,node=0" > > or last line with 2 numa nodes: > "-dimm id=n0,size=512M,node=0 -dimm id=n1,size=512M,node=1 -numa node,nodeid=0 -numa node,nodeid=1" I have reproduced this problem. It only can be reproduced when the dimm's memory is on node 0. I investigate it now. Thanks Wen Congyang > > attached config. Tree is at: > https://github.com/vliaskov/linux/commits/memhp-fujitsu > > thanks, > - Vasilis -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>