Hi All,
We caught an 'Synchronous Exception' error while booting VM with uefi firmware
in the avocado-vt tests.
The Edk2 version we used is edk2-stable201905. The qemu version is qemu-4.0.0
and kernel version is 4.19.0.
Parts of the log we got from serial is bellow, you can get the full log from
attachment.
We can easily reproduce this issue with running avocado-vt tests. Actually, we
tried the new edk2 from upstream,
It is still can be reproduced.
Reproduce command:
# avocado run type_specific.io-github-autotest-qemu.qmp_event_notification
--vt-type qemu --vt-guest-os Guest.Linux.Fedora.29
Qemu command is :
/usr/libexec/qemu-kvm -name avocado-vt-vm1 -chardev
file,path=/root/vm1_edk2.log,id=charseria_edk -serial chardev:charseria_edk
-drive
file=/usr/share/AAVMF/AAVMF_CODE.fd,if=pflash,format=raw,unit=0,readonly=on
-drive
file=/var/lib/avocado/data/avocado-vt/images/f28-aarch64_AAVMF_VARS.fd,if=pflash,format=raw,unit=1
-machine virt-4.0,gic-version=3 -nodefaults -device
virtio-gpu-pci,bus=pcie.0,addr=0x1 -chardev
socket,id=hmp_id_hmp1,path=/var/tmp/avocado_pwoki1gy/monitor-hmp1-20190822-144456-BNpsdyCz,server,nowait
-mon chardev=hmp_id_hmp1,mode=readline -chardev
socket,id=qmp_id_qmp1,path=/var/tmp/avocado_pwoki1gy/monitor-qmp1-20190822-144456-BNpsdyCz,server,nowait
-mon chardev=qmp_id_qmp1,mode=control -chardev
socket,id=qmp_id_qmp2,path=/var/tmp/avocado_pwoki1gy/monitor-qmp2-20190822-144456-BNpsdyCz,server,nowait
-mon chardev=qmp_id_qmp2,mode=control -chardev
socket,id=hmp_id_catch_monitor,path=/var/tmp/avocado_pwoki1gy/monitor-catch_monitor-20190822-144456-BNpsdyCz,server,nowait
-mon chardev=hmp_id_catch_monitor,mode=readline -serial
unix:/var/tmp/avocado_pwoki1gy/serial-serial0-20190822-144456-BNpsdyCz,server,nowait
-device
pcie-root-port,id=pcie.0-root-port-2,slot=2,chassis=2,addr=0x2,bus=pcie.0
-device virtio-serial-pci,id=virtio_serial_pci0,bus=pcie.0-root-port-2,addr=0x0
-chardev
socket,path=/var/tmp/avocado_pwoki1gy/virtio_port-vc1-20190822-144456-BNpsdyCz,id=id8egefs,server,nowait
-device
virtserialport,id=idmRzd3r,name=org.qemu.guest_agent.0,bus=virtio_serial_pci0.0,chardev=id8egefs
-device
pcie-root-port,id=pcie.0-root-port-3,slot=3,chassis=3,addr=0x3,bus=pcie.0
-device qemu-xhci,id=usb1,bus=pcie.0-root-port-3,addr=0x0 -device
pcie-root-port,id=pcie.0-root-port-4,slot=4,chassis=4,addr=0x4,bus=pcie.0
-device virtio-scsi-pci,id=virtio_scsi_pci0,bus=pcie.0-root-port-4,addr=0x0
-drive
id=drive_image1,if=none,format=qcow2,file=/var/lib/avocado/data/avocado-vt/images/f28-aarch64.qcow2
-device scsi-hd,id=image1,drive=drive_image1 -device
pcie-root-port,id=pcie.0-root-port-5,slot=5,chassis=5,addr=0x5,bus=pcie.0
-device
virtio-net-pci,mac=9a:44:45:46:47:48,rombar=0,id=idqgzz84,vectors=4,netdev=id7rFJf9,bus=pcie.0-root-port-5,addr=0x0
-netdev tap,id=id7rFJf9,fd=22 -m 1024 -smp
2,maxcpus=2,cores=1,threads=1,sockets=2 -cpu host -device
usb-tablet,id=usb-tablet1,bus=usb1.0,port=1 -device
usb-kbd,id=usb-kbd1,bus=usb1.0,port=2 -vnc :0 -rtc base=utc,clock=host
-enable-kvm -device
pcie-root-port,id=pcie_extra_root_port_0,slot=6,chassis=6,addr=0x6,bus=pcie.0
-device
pcie-root-port,id=pcie_extra_root_port_1,slot=7,chassis=7,addr=0x7,bus=pcie.0
It reports that this is a alignment fault from log, We analyzed the callstack
from log:
VirtioScsiPassThru->
VirtioFlush->virtio10SetQueueNotify->Virtio10Transfer->PciIoMemWrite->
CpuMemoryServiceWrite-> MmioWrite32 <- here, the address is not align.
I tried to catch this case with the follow patch, but we never got the debug
info while it happens, this is quite confused. :(
} else if (OperationWidth == EfiCpuIoWidthUint16) {
+ if ((Address & 1) != 0) {^M
+ DEBUG((DEBUG_INFO, "%a: MmioWrite16 address 0x%lx Width %d!!!! not
aligh \n", __FUNCTION__, Address, Width));^M
+ }^M
MmioWrite16 ((UINTN)Address, *((UINT16 *)Uint8Buffer));
} else if (OperationWidth == EfiCpuIoWidthUint32) {
+ if ((Address & 3) != 0) {^M
+ DEBUG((DEBUG_INFO, "%a: MmioWrite32 address 0x%lx Width %d!!!! not
aligh\n", __FUNCTION__, Address, Width));^M
+ }^M
MmioWrite32 ((UINTN)Address, *((UINT32 *)Uint8Buffer));
} else if (OperationWidth == EfiCpuIoWidthUint64) {
+ if ((Address & 7) != 0) {^M
+ DEBUG((DEBUG_INFO, "%a: MmioWrite64 address 0x%lx Width %d!!!!
not aligh\n", __FUNCTION__, Address, Width));^M
+ }^M
Mmi
Any idea ?
Synchronous Exception at 0x000000007BD1D318^M
^[[0m^[[37m^[[40m^M
^M
Synchronous Exception at 0x000000007BD1D318^M
PC 0x00007BD1D318 (0x00007BD1B000+0x00002318) [ 0] ArmPciCpuIo2Dxe.dll^M
PC 0x00007BD1D164 (0x00007BD1B000+0x00002164) [ 0] ArmPciCpuIo2Dxe.dll^M
PC 0x00007BD1C868 (0x00007BD1B000+0x00001868) [ 0] ArmPciCpuIo2Dxe.dll^M
PC 0x00007BC7AECC (0x00007BC74000+0x00006ECC) [ 1] PciHostBridgeDxe.dll^M
PC 0x0000785C301C (0x0000785B4000+0x0000F01C) [ 2] PciBusDxe.dll^M
PC 0x00007859B6FC (0x00007859A000+0x000016FC) [ 3] Virtio10.dll^M
PC 0x00007859C0FC (0x00007859A000+0x000020FC) [ 3] Virtio10.dll^M
PC 0x00007BB76F34 (0x00007BB72000+0x00004F34) [ 4] VirtioScsiDxe.dll^M
PC 0x00007BB73F1C (0x00007BB72000+0x00001F1C) [ 4] VirtioScsiDxe.dll^M
PC 0x00007862DA38 (0x00007862B000+0x00002A38) [ 5] ScsiBus.dll^M
PC 0x000078620BB4 (0x000078614000+0x0000CBB4) [ 6] ScsiDisk.dll^M
PC 0x00007861AAC0 (0x000078614000+0x00006AC0) [ 6] ScsiDisk.dll^M
PC 0x000078619E34 (0x000078614000+0x00005E34) [ 6] ScsiDisk.dll^M
PC 0x0000786164D8 (0x000078614000+0x000024D8) [ 6] ScsiDisk.dll^M
PC 0x00007BBDF34C (0x00007BBDC000+0x0000334C) [ 7] DiskIoDxe.dll^M
PC 0x00007BBDFA74 (0x00007BBDC000+0x00003A74) [ 7] DiskIoDxe.dll^M
PC 0x00007BBCD3DC (0x00007BBCB000+0x000023DC) [ 8] PartitionDxe.dll^M
PC 0x00007BBDF34C (0x00007BBDC000+0x0000334C) [ 9] DiskIoDxe.dll^M
PC 0x00007BBDFA74 (0x00007BBDC000+0x00003A74) [ 9] DiskIoDxe.dll^M
PC 0x00007BBB7878 (0x00007BBB4000+0x00003878) [ 10] Fat.dll^M
PC 0x00007BBB7628 (0x00007BBB4000+0x00003628) [ 10] Fat.dll^M
PC 0x00007BBB5BC0 (0x00007BBB4000+0x00001BC0) [ 10] Fat.dll^M
PC 0x00007F4C8F9C (0x00007F4BA000+0x0000EF9C) [ 11] DxeCore.dll^M
PC 0x00007F4C8368 (0x00007F4BA000+0x0000E368) [ 11] DxeCore.dll^M
PC 0x00007F4C86B8 (0x00007F4BA000+0x0000E6B8) [ 11] DxeCore.dll^M
PC 0x00007F4C86B8 (0x00007F4BA000+0x0000E6B8) [ 11] DxeCore.dll^M
PC 0x00007BC508BC (0x00007BC44000+0x0000C8BC) [ 12] BdsDxe.dll^M
PC 0x00007BC5092C (0x00007BC44000+0x0000C92C) [ 12] BdsDxe.dll^M
PC 0x00007BC5F3E8 (0x00007BC44000+0x0001B3E8) [ 12] BdsDxe.dll^M
PC 0x00007BC46EBC (0x00007BC44000+0x00002EBC) [ 12] BdsDxe.dll^M
PC 0x00007F4BC88C (0x00007F4BA000+0x0000288C) [ 13] DxeCore.dll^M
PC 0x00007F4BB8C0 (0x00007F4BA000+0x000018C0) [ 13] DxeCore.dll^M
PC 0x00007F4BB024 (0x00007F4BA000+0x00001024) [ 13] DxeCore.dll^M
^M
[ 0]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/ArmPkg/Drivers/ArmPciCpuIo2Dxe/ArmPciCpuIo2Dxe/DEBUG/ArmPciCpuIo2Dxe.dll^M
[ 1]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/MdeModulePkg/Bus/Pci/PciHostBridgeDxe/PciHostBridgeDxe/DEBUG/PciHostBridgeDxe.dll^M
[ 2]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/MdeModulePkg/Bus/Pci/PciBusDxe/PciBusDxe/DEBUG/PciBusDxe.dll^M
[ 3]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/OvmfPkg/Virtio10Dxe/Virtio10/DEBUG/Virtio10.dll^M
[ 4]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/OvmfPkg/VirtioScsiDxe/VirtioScsi/DEBUG/VirtioScsiDxe.dll^M
[ 5]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/MdeModulePkg/Bus/Scsi/ScsiBusDxe/ScsiBusDxe/DEBUG/ScsiBus.dll^M
[ 6]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/MdeModulePkg/Bus/Scsi/ScsiDiskDxe/ScsiDiskDxe/DEBUG/ScsiDisk.dll^M
[ 7]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/MdeModulePkg/Universal/Disk/DiskIoDxe/DiskIoDxe/DEBUG/DiskIoDxe.dll^M
[ 8]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/MdeModulePkg/Universal/Disk/PartitionDxe/PartitionDxe/DEBUG/PartitionDxe.dll^M
[ 9]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/MdeModulePkg/Universal/Disk/DiskIoDxe/DiskIoDxe/DEBUG/DiskIoDxe.dll^M
[ 10]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/FatPkg/EnhancedFatDxe/Fat/DEBUG/Fat.dll^M
[ 11]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/MdeModulePkg/Core/Dxe/DxeMain/DEBUG/DxeCore.dll^M
[ 12]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/MdeModulePkg/Universal/BdsDxe/BdsDxe/DEBUG/BdsDxe.dll^M
[ 13]
/root/rpmbuild/BUILD/edk2-edk2-stable201905/Build/ArmVirtQemu-AARCH64/DEBUG_GCC49/AARCH64/MdeModulePkg/Core/Dxe/DxeMain/DEBUG/DxeCore.dll^M
^M
X0 0x0000008000100016 X1 0x0000000000000002 X2 0x0000008000100016 X3
0x0000000000000001^M
X4 0x000000007F4B96E6 X5 0x000000007BD1C798 X6 0x000000007BD23008 X7
0x0000000000000000^M
X8 0x000000007C01F508 X9 0x0000000400000000 X10 0x00000000792DF000 X11
0x000000007BA57FFF^M
X12 0x0000000000000000 X13 0x0000000000000008 X14 0x0000000000000000 X15
0x0000000000000000^M
X16 0x000000007F4B9E00 X17 0x0000000000000000 X18 0x0000000000000000 X19
0x00000000792F3C28^M
X20 0x0000000000000000 X21 0x0000000000000000 X22 0x0000000000000000 X23
0x0000000000000000^M
X24 0x0000000000000000 X25 0x0000000000000000 X26 0x0000000000000000 X27
0x0000000000000000^M
X28 0x0000000000000000 FP 0x000000007F4B9540 LR 0x000000007BD1D164 ^M
^M
V0 0x0000000000000000 0000000000000000 V1 0x0000000000000000
0000000000000000^M
V2 0x0000000000000000 0000000000000000 V3 0x0000000000000000
0000000000000000^M
V4 0x0000000000000000 0000000000000000 V5 0x0000000000000000
0000000000000000^M
V6 0x0000000000000000 0000000000000000 V7 0x0000000000000000
0000000000000000^M
V8 0x0000000000000000 0000000000000000 V9 0x0000000000000000
0000000000000000^M
V10 0x0000000000000000 0000000000000000 V11 0x0000000000000000
0000000000000000^M
V12 0x0000000000000000 0000000000000000 V13 0x0000000000000000
0000000000000000^M
V14 0x0000000000000000 0000000000000000 V15 0x0000000000000000
0000000000000000^M
V16 0x0000000000000000 0000000000000000 V17 0x0000000000000000
0000000000000000^M
V18 0x0000000000000000 0000000000000000 V19 0x0000000000000000
0000000000000000^M
V20 0x0000000000000000 0000000000000000 V21 0x0000000000000000
0000000000000000^M
V22 0x0000000000000000 0000000000000000 V23 0x0000000000000000
0000000000000000^M
V24 0x0000000000000000 0000000000000000 V25 0x0000000000000000
0000000000000000^M
V26 0x0000000000000000 0000000000000000 V27 0x0000000000000000
0000000000000000^M
V28 0x0000000000000000 0000000000000000 V29 0x0000000000000000
0000000000000000^M
V30 0x0000000000000000 0000000000000000 V31 0x0000000000000000
0000000000000000^M
^M
SP 0x000000007F4B9540 ELR 0x000000007BD1D318 SPSR 0x60000205 FPSR
0x00000000^M
ESR 0x96000021 FAR 0x0000008000100016^M
^M
ESR : EC 0x25 IL 0x1 ISS 0x00000021^M
^M
Data abort: Alignment fault^M
Thanks.
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