On Tue, Jun 15, 2021 at 11:21:05AM +0800, Po-Hsu Lin wrote:
> On Fri, Nov 20, 2020 at 8:35 PM Andrew Jones <drjones@xxxxxxxxxx> wrote:
> >
> > On Fri, Nov 20, 2020 at 12:02:10PM +0000, Alexandru Elisei wrote:
> > > When running all the tests with taskset -c 0-3 ./run_tests.sh on a rockpro64 (on
> > > the Cortex-a53 cores) the its-migration test hangs. In the log file I see:
> > >
> > > run_migration timeout -k 1s --foreground 90s /usr/bin/qemu-system-aarch64
> > > -nodefaults -machine virt,gic-version=host,accel=kvm -cpu host -device
> > > virtio-serial-device -device virtconsole,chardev=ctd -chardev testdev,id=ctd
> > > -device pci-testdev -display none -serial stdio -kernel arm/gic.flat -smp 6
> > > -machine gic-version=3 -append its-migration # -initrd /tmp/tmp.OrlQiorBpY
> > > ITS: MAPD devid=2 size = 0x8 itt=0x40420000 valid=1
> > > ITS: MAPD devid=7 size = 0x8 itt=0x40430000 valid=1
> > > MAPC col_id=3 target_addr = 0x30000 valid=1
> > > MAPC col_id=2 target_addr = 0x20000 valid=1
> > > INVALL col_id=2
> > > INVALL col_id=3
> > > MAPTI dev_id=2 event_id=20 -> phys_id=8195, col_id=3
> > > MAPTI dev_id=7 event_id=255 -> phys_id=8196, col_id=2
> > > Now migrate the VM, then press a key to continue...
> > > scripts/arch-run.bash: line 103: 48549 Done echo '{ "execute":
> > > "qmp_capabilities" }{ "execute":' "$2" '}'
> > > 48550 Segmentation fault (core dumped) | ncat -U $1
> > > scripts/arch-run.bash: line 103: 48568 Done echo '{ "execute":
> > > "qmp_capabilities" }{ "execute":' "$2" '}'
> > > 48569 Segmentation fault (core dumped) | ncat -U $1
> > > scripts/arch-run.bash: line 103: 48583 Done echo '{ "execute":
> > > "qmp_capabilities" }{ "execute":' "$2" '}'
> > > 48584 Segmentation fault (core dumped) | ncat -U $1
> > > [..]
> > > scripts/arch-run.bash: line 103: 49414 Done echo '{ "execute":
> > > "qmp_capabilities" }{ "execute":' "$2" '}'
> > > 49415 Segmentation fault (core dumped) | ncat -U $1
> > > qemu-system-aarch64: terminating on signal 15 from pid 48496 (timeout)
> > > qemu-system-aarch64: terminating on signal 15 from pid 48504 (timeout)
> > > scripts/arch-run.bash: line 103: 49430 Done echo '{ "execute":
> > > "qmp_capabilities" }{ "execute":' "$2" '}'
> > > 49431 Segmentation fault (core dumped) | ncat -U $1
> > > scripts/arch-run.bash: line 103: 49445 Done echo '{ "execute":
> > > "qmp_capabilities" }{ "execute":' "$2" '}'
> > > [..]
> >
> > Is your ncat segfaulting? It looks like it from this output. Have you
> > tried running your ncat with a UNIX socket independently of this test?
> >
> > Is this the first time you've tried this test in this environment, or
> > is this a regression for you?
> >
> > >
> > > If I run the test manually:
> > >
> > > $ taskset -c 0-3 ./arm-run arm/gic.flat -smp 4 -machine gic-version=3 -append
> > > 'its-migration'
> >
> > This won't work because we need run_tests.sh to setup the run_migration()
> > call. The only ways to run migration tests separately are
> >
> > $ ./run_tests.sh its-migration
> >
> > and
> >
> > $ tests/its-migration
> >
> > For the second one you need to do 'make standalone' first.
> >
> >
> > >
> > > /usr/bin/qemu-system-aarch64 -nodefaults -machine virt,gic-version=host,accel=kvm
> > > -cpu host -device virtio-serial-device -device virtconsole,chardev=ctd -chardev
> > > testdev,id=ctd -device pci-testdev -display none -serial stdio -kernel
> > > arm/gic.flat -smp 4 -machine gic-version=3 -append its-migration # -initrd
> > > /tmp/tmp.OtsTj3QD4J
> > > ITS: MAPD devid=2 size = 0x8 itt=0x403a0000 valid=1
> > > ITS: MAPD devid=7 size = 0x8 itt=0x403b0000 valid=1
> > > MAPC col_id=3 target_addr = 0x30000 valid=1
> > > MAPC col_id=2 target_addr = 0x20000 valid=1
> > > INVALL col_id=2
> > > INVALL col_id=3
> > > MAPTI dev_id=2 event_id=20 -> phys_id=8195, col_id=3
> > > MAPTI dev_id=7 event_id=255 -> phys_id=8196, col_id=2
> > > Now migrate the VM, then press a key to continue...
> > >
> > > And the test hangs here after I press a key.
> >
> > The test doesn't get your input because of the '</dev/null' in run_qemu(),
> > which ./arm-run calls. So it's not hanging it's just waiting forever on
> > the key press.
> Hello Andrew,
> We have found this waiting for key press issue on our side as well
> [1], the test will fail with TIMEOUT, it looks like it's not getting
> my input like you mentioned here.
> I would like to ask what is the expected behaviour of these migration
> related tests (its-pending-migration / its-migration /
> its-migrate-unmapped-collection)? Should they pass right after the
> tester hit a key?
They should, but normally users don't need to press a key, because the
script uses ncat to do it for them.
> Also, if these test would require user interaction, should they be
> moved to some special group like 'nodefault' to prevent it from
> failing with timeout in automated tests?
The tests shouldn't be a problem when ncat does its job.
I still think we have a script/ncat issue here. Please provide
qemu version:
bash version:
ncat version:
And the distro and distro version might also be helpful.
Thanks,
drew
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