| Summary: | The guest was crashed while detach the 82576 vf card from the guest | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | zhenfeng wang <zhwang> |
| Component: | qemu-kvm | Assignee: | Bandan Das <bdas> |
| Status: | CLOSED CURRENTRELEASE | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | 7.0 | CC: | acathrow, alex.williamson, chayang, cwei, dyuan, gsun, hhuang, juzhang, mzhan, virt-maint, xuzhang, ydu, zhwang |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2014-01-30 17:30:32 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
I am closing this based on QE's input that they can't reproduce this issue with a recent version of kernel and libvirt. Please feel free to reopen if you think otherwise. Thanks. |
Description The guest was crashed while detach the 82576 vf card from the guest which has been attached the same vf twice. Versions kernel-3.10.0-18.el7.x86_64 libvirt-1.1.1-5.el7.x86_64 qemu-kvm-1.5.3-3.el7.x86_64 Steps 1.Prepare a runnig guest # virsh list --all Id Name State ---------------------------------------------------- 3 rhelnew3 running 2.Prepare a vf's xml # virsh nodedev-dumpxml pci_0000_0f_10_7 <device> <name>pci_0000_0f_10_7</name> <path>/sys/devices/pci0000:00/0000:00:1c.6/0000:0c:00.0/0000:0d:02.0/0000:0f:10.7</path> <parent>pci_0000_0d_02_0</parent> <driver> <name>igbvf</name> </driver> <capability type='pci'> <domain>0</domain> <bus>15</bus> <slot>16</slot> <function>7</function> <product id='0x10ca'>82576 Virtual Function</product> <vendor id='0x8086'>Intel Corporation</vendor> # cat vf.xml <hostdev mode='subsystem' type='pci' managed='yes'> <source> <address bus='15' slot='16' function='7'/> </source> </hostdev> 3.Attach the vf to the guest # virsh attach-device rhelnew3 vf.xml Device attached successfully 4.Attach it again # virsh attach-device rhelnew3 vf.xml error: Failed to attach device from vf.xml error: Requested operation is not valid: PCI device 0000:0f:10.7 is in use by domain rhelnew3 5.Detach the vf from the guest, vf will be detached successfully, however, the guest was destroyed automatically # virsh detach-device rhelnew3 vf.xml Device detached successfully Check the guest's status # virsh list --all Id Name State ---------------------------------------------------- - rhelnew3 shut off 6.Check the log in libvirtd.log 2013-09-17 05:05:06.743+0000: 20588: error : qemuMonitorIORead:515 : Unable to read from monitor: Connection reset by peer check the log in qemu's log char device redirected to /dev/pts/4 (label charserial0) qemu: hardware error: pci write failed, ret = -1 errno = 13 CPU #0: RAX=0000000000000006 RBX=0000000000000000 RCX=00000000000010ae RDX=0000000000000cfc RSI=0000000000000097 RDI=0000000080004004 RBP=ffff88003d4a3b48 RSP=ffff88003d4a3b20 R8 =0000000000000002 R9 =0000000000000006 R10=0000000000000040 R11=0000000000000001 R12=0000000000000002 R13=0000000000000000 R14=0000000000000006 R15=0000000000000040 RIP=ffffffff814d35a7 RFL=00000046 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 0000000000000000 ffffffff 00c00000 CS =0010 0000000000000000 ffffffff 00a09b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 ffffffff 00c09300 DPL=0 DS [-WA] DS =0000 0000000000000000 ffffffff 00c00000 FS =0000 0000000000000000 ffffffff 00c00000 GS =0000 ffff88003fc00000 ffffffff 00c00000 LDT=0000 0000000000000000 ffffffff 00c00000 TR =0040 ffff88003fc11a00 00002087 00008b00 DPL=0 TSS64-busy GDT= ffff88003fc0a000 0000007f IDT= ffffffffff529000 00000fff CR0=8005003b CR2=00007f0ccc648f84 CR3=000000003c29f000 CR4=000006f0 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000d01 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00009fc0 FPR0=0000000000000000 0000 FPR1=0000000000000000 0000 FPR2=0000000000000000 0000 FPR3=0000000000000000 0000 FPR4=0000000000000000 0000 FPR5=0000000000000000 0000 FPR6=0000000000000000 0000 FPR7=0000000000000000 0000 XMM00=6e69616d6f646c61636f6c2e74736f68 XMM01=ffffffffffffffffffffffffffffffff XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=00000000000000000000000000000000 XMM05=40404040404040404040404040404040 XMM06=5b5b5b5b5b5b5b5b5b5b5b5b5b5b5b5b XMM07=20202020202020202020202020202020 XMM08=00000000000000200000002000000000 XMM09=ff000000000000ffff0000ffff000000 XMM10=00000000000000000000000000000000 XMM11=ffffffffffffffffffffffffffffffff XMM12=00000000000000000000000000000000 XMM13=00000000000000000000000000000000 XMM14=00000000000000000000000000000000 XMM15=00000000000000000000000000000000 2013-09-17 05:05:06.744+0000: shutting down Actual result The guest was crashed while detach the vf the from the guest Expect result The guest shouldn't be crashed while detach the vf from the guest