Bug 1356445
| Summary: | qemu core dump when booting with 'iommu=on' and vfio-pci | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 7 | Reporter: | Pei Zhang <pezhang> |
| Component: | qemu-kvm-rhev | Assignee: | Alex Williamson <alex.williamson> |
| Status: | CLOSED NOTABUG | QA Contact: | Pei Zhang <pezhang> |
| Severity: | medium | Docs Contact: | |
| Priority: | unspecified | ||
| Version: | 7.3 | CC: | chayang, jinzhao, juzhang, knoel, michen, virt-maint, xfu |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: | Story Points: | --- | |
| Clone Of: | Environment: | ||
| Last Closed: | 2016-07-14 12:53:22 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: | |
| Embargoed: | |||
This is the expected behavior. |
Description of problem: Qemu core dump when booting qemu with 'iommu=on' and vfio-pci. Version-Release number of selected component (if applicable): qemu-img-rhev-2.6.0-13.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. Boot guest with iommu=on and vfio-pci device # /usr/libexec/qemu-kvm \ -M q35,iommu=on \ -device vfio-pci,host=01:00.0 (qemu) qemu: hardware error: Device at bus root.1 addr 00.0 requires iommu notifier which is currently not supported by intel-iommu emulation CPU #0: EAX=00000000 EBX=00000000 ECX=00000000 EDX=000206a1 ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000 EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 00000000 0000ffff 00009300 CS =f000 ffff0000 0000ffff 00009b00 SS =0000 00000000 0000ffff 00009300 DS =0000 00000000 0000ffff 00009300 FS =0000 00000000 0000ffff 00009300 GS =0000 00000000 0000ffff 00009300 LDT=0000 00000000 0000ffff 00008200 TR =0000 00000000 0000ffff 00008b00 GDT= 00000000 0000ffff IDT= 00000000 0000ffff CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000000 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 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=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 CPU #1: EAX=00000000 EBX=00000000 ECX=00000000 EDX=000206a1 ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000 EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =0000 00000000 0000ffff 00009300 CS =f000 ffff0000 0000ffff 00009b00 SS =0000 00000000 0000ffff 00009300 DS =0000 00000000 0000ffff 00009300 FS =0000 00000000 0000ffff 00009300 GS =0000 00000000 0000ffff 00009300 LDT=0000 00000000 0000ffff 00008200 TR =0000 00000000 0000ffff 00008b00 GDT= 00000000 0000ffff IDT= 00000000 0000ffff CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000000 FCW=037f FSW=0000 [ST=0] FTW=00 MXCSR=00001f80 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=00000000000000000000000000000000 XMM01=00000000000000000000000000000000 XMM02=00000000000000000000000000000000 XMM03=00000000000000000000000000000000 XMM04=00000000000000000000000000000000 XMM05=00000000000000000000000000000000 XMM06=00000000000000000000000000000000 XMM07=00000000000000000000000000000000 Aborted (core dumped) Actual results: Qemu core dump. Expected results: Qemu should fail start up without core dump. Additional info: gdb info (gdb) bt #0 0x00007fffefe385f7 in raise () from /lib64/libc.so.6 #1 0x00007fffefe39ce8 in abort () from /lib64/libc.so.6 #2 0x00005555556f58fa in hw_error ( fmt=fmt@entry=0x5555559b9e90 "Device at bus %s addr %02x.%d requires iommu notifier which is currently not supported by intel-iommu emulation") at /usr/src/debug/qemu-2.6.0/cpus.c:703 #3 0x000055555575187f in vtd_iommu_notify_started (iommu=<optimized out>) at /usr/src/debug/qemu-2.6.0/hw/i386/intel_iommu.c:1879 #4 0x000055555570c387 in memory_region_register_iommu_notifier (mr=0x555559667700, n=n@entry=0x55555981d910) at /usr/src/debug/qemu-2.6.0/memory.c:1515 #5 0x000055555573b1e2 in vfio_listener_region_add (listener=0x555556bdc5b0, section=0x7fffffffcac0) at /usr/src/debug/qemu-2.6.0/hw/vfio/common.c:384 #6 0x000055555570ded9 in listener_add_address_space (as=0x555559667610, listener=0x555556bdc5b0) at /usr/src/debug/qemu-2.6.0/memory.c:2187 #7 memory_listener_register (listener=listener@entry=0x555556bdc5b0, filter=<optimized out>) at /usr/src/debug/qemu-2.6.0/memory.c:2216 #8 0x000055555573bcad in vfio_connect_container (as=<optimized out>, group=0x55555981d8c0) at /usr/src/debug/qemu-2.6.0/hw/vfio/common.c:892 #9 vfio_get_group (groupid=15, as=<optimized out>) at /usr/src/debug/qemu-2.6.0/hw/vfio/common.c:1000 #10 0x000055555573f5bc in vfio_initfn (pdev=0x555559818000) at /usr/src/debug/qemu-2.6.0/hw/vfio/pci.c:2551 #11 0x0000555555866d54 in pci_default_realize (dev=0x555559818000, errp=0x7fffffffdd50) at hw/pci/pci.c:1893 ---Type <return> to continue, or q <return> to quit--- #12 0x000055555586a028 in pci_qdev_realize (qdev=0x555559818000, errp=0x7fffffffddd0) at hw/pci/pci.c:1865 #13 0x0000555555813fa0 in device_set_realized (obj=0x555559818000, value=<optimized out>, errp=0x7fffffffdf08) at hw/core/qdev.c:1066 #14 0x00005555558f250e in property_set_bool (obj=0x555559818000, v=<optimized out>, name=<optimized out>, opaque=0x555559001fb0, errp=0x7fffffffdf08) at qom/object.c:1853 #15 0x00005555558f6167 in object_property_set_qobject (obj=0x555559818000, value=<optimized out>, name=0x5555559ed3ed "realized", errp=0x7fffffffdf08) at qom/qom-qobject.c:26 #16 0x00005555558f3fe0 in object_property_set_bool (obj=0x555559818000, value=<optimized out>, name=0x5555559ed3ed "realized", errp=0x7fffffffdf08) at qom/object.c:1150 #17 0x00005555557c4f8c in qdev_device_add (opts=0x555556b44050, errp=errp@entry=0x7fffffffdfe0) at qdev-monitor.c:617 #18 0x00005555557cedd7 in device_init_func (opaque=<optimized out>, opts=<optimized out>, errp=<optimized out>) at vl.c:2362 #19 0x000055555599d0ea in qemu_opts_foreach (list=<optimized out>, func=func@entry=0x5555557cedb0 <device_init_func>, opaque=opaque@entry=0x0, errp=errp@entry=0x0) at util/qemu-option.c:1116 #20 0x00005555556c4970 in main (argc=<optimized out>, argv=<optimized out>, envp=<optimized out>) at vl.c:4552 2. This issue was found when verifying Bug 1346920 - vIOMMU: prevent unsupported configurations with vfio.