Hi,
Thanks for the quick reply!
On 11/15/22 4:42 PM, Andrew Jones wrote:
On Tue, Nov 15, 2022 at 04:11:48PM +0800, Guoqing Jiang wrote:
Hi,
I find the two test results (pmu and intel_cet) are quite different, but
other
test results are consistent.
gjiang@x1:~/source/kvm-unit-tests> ./run_tests.sh
...
*PASS pmu (142 tests)*
...
*FAIL intel_cet*
...
1. pmu standalone test
gjiang@x1:~/source/kvm-unit-tests/tests> ./pmu
BUILD_HEAD=73d9d850
timeout -k 1s --foreground 90s /usr/bin/qemu-system-x86_64 --no-reboot
-nodefaults -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4
-vnc none -serial stdio -device pci-testdev -machine accel=kvm -kernel
/tmp/tmp.Bai8UEIh2F -smp 1 -cpu max # -initrd /tmp/tmp.DFE9VFPOdp
enabling apic
smp: waiting for 0 APs
paging enabled
cr0 = 80010011
cr3 = 1007000
cr4 = 20
PMU version: 2
GP counters: 4
GP counter width: 48
Mask length: 7
Fixed counters: 3
Fixed counter width: 48
PASS: core cycles-0
...
FAIL: llc misses-0
FAIL: llc misses-1
FAIL: llc misses-2
FAIL: llc misses-3
...
SUMMARY: 142 tests, 4 unexpected failures
*FAIL pmu (142 tests, 4 unexpected failures)
*And
gjiang@x1:~/source/kvm-unit-tests> ./x86-run ./x86/pmu.flat
/usr/bin/qemu-system-x86_64 --no-reboot -nodefaults -device pc-testdev
-device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio
-device pci-testdev -machine accel=kvm -kernel ./x86/pmu.flat # -initrd
/tmp/tmp.jiEHps3KLW
enabling apic
smp: waiting for 0 APs
paging enabled
cr0 = 80010011
cr3 = 1007000
cr4 = 20
*SKIP: No pmu is detected!**
**SUMMARY: 1 tests, 1 skipped*
./x86-run doesn't look at x86/unittests.cfg, which is where the pmu test
states that it needs '-cpu max'. You either need to add it yourself, e.g.
'./x86-run ./x86/pmu.flat -cpu max' or use run_tests.sh, e.g.
'./run_tests.sh pmu'. standalone tests get their parameters from
x86/unittests.cfg, which is why it's already using '-cpu max'.
Thanks for the tips. And I still see two different results, one is PASS
while another has failures.
gjiang@x1:~/source/kvm-unit-tests> ./run_tests.sh pmu
PASS pmu (142 tests)
gjiang@x1:~/source/kvm-unit-tests> ./x86-run ./x86/pmu.flat -cpu max
/usr/bin/qemu-system-x86_64 --no-reboot -nodefaults -device pc-testdev
-device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio
-device pci-testdev -machine accel=kvm -kernel ./x86/pmu.flat -cpu max #
-initrd /tmp/tmp.wBVHPW1XUr
enabling apic
smp: waiting for 0 APs
paging enabled
cr0 = 80010011
cr3 = 1007000
cr4 = 20
PMU version: 2
GP counters: 4
GP counter width: 48
Mask length: 7
Fixed counters: 3
Fixed counter width: 48
...
FAIL: llc misses-0
FAIL: llc misses-1
FAIL: llc misses-2
FAIL: llc misses-3
...
SUMMARY: 142 tests, 4 unexpected failures
**
2. intel_cet
gjiang@x1:~/source/kvm-unit-tests/tests> ./intel_cet
BUILD_HEAD=73d9d850
*skip intel_cet (test kernel not present)*
This error looks like x86/cet.c wasn't built. Maybe do a 'make clean' and
'make standalone' again and watch that cet.c doesn't fail to compile.
Indeed, seems cet.c is not compiled since only cet.c exists even after run
'make clean' and 'make standalone', but tests/intel_cet is generated.
gjiang@x1:~/source/kvm-unit-tests> ls x86/cet.*
x86/cet.c
Thanks,
Guoqing
