[Qemu-devel] [Bug 875723] Re: guest aborts when detaching a SR-IOV VF
This bug is got fixed in qemu-kvm upstream. I verified it. The following is the commit info for the fix in qemu-kvm. commit c4cd183600aa6319b4a4a0b48cb41d63198e08c3 Author: Alex Williamson alex.william...@redhat.com Date: Wed Nov 16 13:45:32 2011 -0700 pci-assign: Fix device removal We're destroying the memory container before we remove the subregions it holds. This fixes: https://bugs.launchpad.net/qemu/+bug/875723 Signed-off-by: Alex Williamson alex.william...@redhat.com Signed-off-by: Avi Kivity a...@redhat.com ** Changed in: qemu Status: New = Fix Released -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/875723 Title: guest aborts when detaching a SR-IOV VF Status in QEMU: Fix Released Bug description: Environment: Host OS (ia32/ia32e/IA64):All Guest OS (ia32/ia32e/IA64):ia32e Guest OS Type (Linux/Windows):Linux kvm.git Commit:211978fb6c666f824ae8221baea7ee28efc1 qemu.git Commit:edbb7c0de56692868e6126c7ff7e8bf917f8d0e7 Host Kernel Version:3.1.0-rc9+ Hardware: Westmere-EP SandyBridge platform Bug detailed description: -- Guest will abort when detaching a SR-IOV VF. I'm using rhel6 and rhel6u1 as my guest. Firstly, I hot-plug a sr-iov VF to a guest. Then I detach the VF from the guest. At that time, guest aborts and qemu-kvm process aborts with the following message. qemu-system-x86_64: /workspace/qemu-kvm/memory.c:998: memory_region_destroy: Assertion `((mr-subregions)-tqh_first == ((void *)0))' failed. Aborted (core dumped) Reproduce steps: 1.start a rhel6 guest 2.attach a SR-IOV VF to the guest: device_add pci-assign,host=01:10.0,id=myNIC (I'm using 82576 Virtual Function.) 3.detach the VF from the guest: device_del myNIC (you'll find guest aborts) Current result: guest aborts and qemu process aborts Expected result: guest still alive To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/875723/+subscriptions
[Qemu-devel] [Bug 875723] Re: guest aborts when detaching a SR-IOV VF
I also tried this issue with Intel 82576EI NIC, and this normal VT-D NIC doesn't have this detachment issue. -- You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/875723 Title: guest aborts when detaching a SR-IOV VF Status in QEMU: New Bug description: Environment: Host OS (ia32/ia32e/IA64):All Guest OS (ia32/ia32e/IA64):ia32e Guest OS Type (Linux/Windows):Linux kvm.git Commit:211978fb6c666f824ae8221baea7ee28efc1 qemu.git Commit:edbb7c0de56692868e6126c7ff7e8bf917f8d0e7 Host Kernel Version:3.1.0-rc9+ Hardware: Westmere-EP SandyBridge platform Bug detailed description: -- Guest will abort when detaching a SR-IOV VF. I'm using rhel6 and rhel6u1 as my guest. Firstly, I hot-plug a sr-iov VF to a guest. Then I detach the VF from the guest. At that time, guest aborts and qemu-kvm process aborts with the following message. qemu-system-x86_64: /workspace/qemu-kvm/memory.c:998: memory_region_destroy: Assertion `((mr-subregions)-tqh_first == ((void *)0))' failed. Aborted (core dumped) Reproduce steps: 1.start a rhel6 guest 2.attach a SR-IOV VF to the guest: device_add pci-assign,host=01:10.0,id=myNIC (I'm using 82576 Virtual Function.) 3.detach the VF from the guest: device_del myNIC (you'll find guest aborts) Current result: guest aborts and qemu process aborts Expected result: guest still alive To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/875723/+subscriptions
