Bug 612008
| Summary: | Reattach NIC to host lead to host reboot | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | juzhang <juzhang> |
| Component: | kernel | Assignee: | Don Dutile (Red Hat) <ddutile> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Red Hat Kernel QE team <kernel-qe> |
| Severity: | medium | Docs Contact: | |
| Priority: | high | ||
| Version: | 6.0 | CC: | lihuang, michen, ndai |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2010-10-11 14:01:14 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
This issue has been proposed when we are only considering blocker issues in the current Red Hat Enterprise Linux release. It has been denied for the current Red Hat Enterprise Linux release. ** If you would still like this issue considered for the current release, ask your support representative to file as a blocker on your behalf. Otherwise ask that it be considered for the next Red Hat Enterprise Linux release. ** |
Description of problem: First attach physical pass-though guest(vm), then reattach NIC to host lead to host reboot. Version-Release number of selected component (if applicable): #rpm -q qemu-kvm qemu-kvm-0.12.1.2-2.90.el6.x86_64 #uname -r 2.6.32-37.el6.x86_64 How reproducible: 100% Steps to Reproduce: 1. Unbind device from host kernel driver (PCI device 28:00.0) 1.1 lspci | grep Ethernet lspci | grep Ethernet 01:00.0 Ethernet controller: Broadcom Corporation NetXtreme BCM5764M Gigabit Ethernet PCIe (rev 10) 03:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01) 03:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network Connection (rev 01) 28:00.0 Ethernet controller: Intel Corporation 82572EI Gigabit Ethernet Controller (Copper) (rev 06) 1.2. #lspci -n | grep 28:00.0 28:00.0 0200: 8086:10b9 (rev 06) 1.3 echo "8086 10b9" >/sys/bus/pci/drivers/pci-stub/new_id 1.4 echo 0000:28:00.0 >/sys/bus/pci/devices/0000\:28\:00.0/driver/unbind 1.5 echo 0000:28:00.0 >/sys/bus/pci/drivers/pci-stub/bind 2.boot guest #/usr/libexec/qemu-kvm -m 4G -smp 4 -drive file=/root/zhangjunyi/rhel6.32.raw,if=none,id=drive-virtio-disk0,boot=on,cache=none,format=raw -device virtio-blk-pci,bus=pci.0,drive=drive-virtio-disk0,id=virtio-disk0 -netdev tap,id=hostnet0,vhost=on -device virtio-net-pci,netdev=hostnet0,id=net0,mac=22:11:22:45:66:97 -device virtio-balloon-pci -cpu qemu64,+sse2,+x2apic -monitor stdio -vnc :10 -qmp tcp:0:4445,server,nowait -drive file=/root/zhangjunyi/boot.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,drive=drive-ide0-1-0 -boot c 3. hot-plug pass-through device (qemu) device_add pci-assign,host=28:00.0,id=zjy 4.after step3, device was hot-plug successful. (qemu) info pc Bus 0, device 0, function 0: Host bridge: PCI device 8086:1237 id "" Bus 0, device 1, function 0: ISA bridge: PCI device 8086:7000 id "" Bus 0, device 1, function 1: IDE controller: PCI device 8086:7010 BAR4: I/O at 0xc000 [0xc00f]. id "" Bus 0, device 1, function 3: Bridge: PCI device 8086:7113 IRQ 9. id "" Bus 0, device 2, function 0: VGA controller: PCI device 1013:00b8 BAR0: 32 bit prefetchable memory at 0xf0000000 [0xf1ffffff]. BAR1: 32 bit memory at 0xf2000000 [0xf2000fff]. BAR6: 32 bit memory at 0xffffffffffffffff [0x0000fffe]. id "" Bus 0, device 3, function 0: SCSI controller: PCI device 1af4:1001 IRQ 11. BAR0: I/O at 0xc040 [0xc07f]. BAR1: 32 bit memory at 0xf2020000 [0xf2020fff]. id "virtio-disk0" Bus 0, device 4, function 0: Ethernet controller: PCI device 1af4:1000 IRQ 11. BAR0: I/O at 0xc080 [0xc09f]. BAR1: 32 bit memory at 0xf2021000 [0xf2021fff]. BAR6: 32 bit memory at 0xffffffffffffffff [0x0000fffe]. id "net0" Bus 0, device 5, function 0: RAM controller: PCI device 1af4:1002 IRQ 10. BAR0: I/O at 0xc0a0 [0xc0bf]. id "" Bus 0, device 6, function 0: Ethernet controller: PCI device 8086:10b9 IRQ 3. BAR0: 32 bit memory at 0xe0000000 [0xe001ffff]. BAR1: 32 bit memory at 0xe0020000 [0xe003ffff]. BAR2: I/O at 0x1000 [0x101f]. BAR6: 32 bit prefetchable memory at 0xffffffffffffffff [0x0001fffe]. id "zjy" 5.In host,Reset device to host kernel driver #echo "8086 10b9" > /sys/bus/pci/devices/0000\:28\:00.0/driver/new_id #echo 0000:28:00.0 > /sys/bus/pci/drivers/pci-stub/unbind #echo 0000:28:00.0 > /sys/bus/pci/drivers/e1000e/bind -bash: echo: write error: No such device 6.Hot plug-out physical NIC card (qemu) device_del zjy 7.After step6,physical was hot-plug out successful 8.In host,Reset device to host kernel driver again #echo 0000:28:00.0 > /sys/bus/pci/drivers/e1000e/bind Actual results: After step8,host rebooted without any hints and failed to boot up. Expected results: Anyway,can't cause host reboot. Additional info: Reattach NIC to host successful if do the following steps: 1.boot guest #/usr/libexec/qemu-kvm -m 4G -smp 4 -drive file=/root/zhangjunyi/rhel6.32.raw,if=none,id=drive-virtio-disk0,boot=on,cache=none,format=raw -device virtio-blk-pci,bus=pci.0,drive=drive-virtio-disk0,id=virtio-disk0 -netdev tap,id=hostnet0,vhost=on -device virtio-net-pci,netdev=hostnet0,id=net0,mac=22:11:22:45:66:97 -device virtio-balloon-pci -cpu qemu64,+sse2,+x2apic -monitor stdio -vnc :10 -qmp tcp:0:4445,server,nowait -drive file=/root/zhangjunyi/boot.iso,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on,format=raw -device ide-drive,drive=drive-ide0-1-0 -boot c 2. hot-plug pass-through device (qemu) device_add pci-assign,host=28:00.0,id=zjy 3.after step2, device was hot-plug successful. (qemu) info pci Bus 0, device 0, function 0: Host bridge: PCI device 8086:1237 id "" Bus 0, device 1, function 0: ISA bridge: PCI device 8086:7000 id "" Bus 0, device 1, function 1: IDE controller: PCI device 8086:7010 BAR4: I/O at 0xc000 [0xc00f]. id "" Bus 0, device 1, function 3: Bridge: PCI device 8086:7113 IRQ 9. id "" Bus 0, device 2, function 0: VGA controller: PCI device 1013:00b8 BAR0: 32 bit prefetchable memory at 0xf0000000 [0xf1ffffff]. BAR1: 32 bit memory at 0xf2000000 [0xf2000fff]. BAR6: 32 bit memory at 0xffffffffffffffff [0x0000fffe]. id "" Bus 0, device 3, function 0: SCSI controller: PCI device 1af4:1001 IRQ 11. BAR0: I/O at 0xc040 [0xc07f]. BAR1: 32 bit memory at 0xf2020000 [0xf2020fff]. id "virtio-disk0" Bus 0, device 4, function 0: Ethernet controller: PCI device 1af4:1000 IRQ 11. BAR0: I/O at 0xc080 [0xc09f]. BAR1: 32 bit memory at 0xf2021000 [0xf2021fff]. BAR6: 32 bit memory at 0xffffffffffffffff [0x0000fffe]. id "net0" Bus 0, device 5, function 0: RAM controller: PCI device 1af4:1002 IRQ 10. BAR0: I/O at 0xc0a0 [0xc0bf]. id "" Bus 0, device 6, function 0: Ethernet controller: PCI device 8086:10b9 IRQ 3. BAR0: 32 bit memory at 0xe0000000 [0xe001ffff]. BAR1: 32 bit memory at 0xe0020000 [0xe003ffff]. BAR2: I/O at 0x1000 [0x101f]. BAR6: 32 bit prefetchable memory at 0xffffffffffffffff [0x0001fffe]. id "zjy" 4.Hot plug-out physical NIC card (qemu) device_del zjy 5.After step4,physical was hot-plug out successful 6.In host,Reset device to host kernel driver #echo "8086 10b9" > /sys/bus/pci/devices/0000\:28\:00.0/driver/new_id #echo 0000:28:00.0 > /sys/bus/pci/drivers/pci-stub/unbind #echo 0000:28:00.0 > /sys/bus/pci/drivers/e1000e/bind