On Sun, Oct 30, 2022 at 04:41:58PM +0800, Baolu Lu wrote:
> On 2022/10/30 0:06, Jason Gunthorpe wrote:
> > On Sat, Oct 29, 2022 at 04:22:32PM +0800, Baolu Lu wrote:
> > > On 2022/10/27 21:59, Jason Gunthorpe wrote:
> > > > I'm seeing this at every boot, on v6.1-rc2
> > > > 
> > > > I've just realized it means lockdep is turned off for the actual
> > > > testing I want to do. Very annoying
> > > > 
> > > > Lu, is there a solution yet? I saw some patches for a different
> > > > lockdep splat but not this one.
> > > 
> > > Hi Jason,
> > > 
> > > Possibly the same issue as this one?
> > > 
> > > https://lore.kernel.org/linux-iommu/20220922101036.87457-1-janusz.krzysztofik@linux.intel.com/
> > 
> > No, this has nothing to do with coretemp and this one involves irq_domain_mutex
> 
> Can you please share a copy of the .config with me? I am trying to
> reproduce this with a local machine.

Attached. The qemu to invoke it looks like this:

qemu-system-x86_64 -append root=/dev/root rw ignore_loglevel rootfstype=9p rootflags="cache=loose,trans=virtio" earlyprintk=serial,ttyS0,115200 console=hvc0 noibrs noibpb nopti nospectre_v2 nospectre_v1 l1tf=off nospec_store_bypass_disable no_stf_barrier mds=off mitigations=off intel_iommu=on vfio_iommu_type1.allow_unsafe_interrupts=1 systemd.hostname=wakko-vm -chardev stdio,id=stdio,mux=on,signal=off -cpu host -device virtio-rng-pci -device virtio-balloon-pci -device isa-serial,chardev=stdio -device virtio-serial-pci -device virtconsole,chardev=stdio -device virtio-9p-pci,fsdev=host_fs,mount_tag=/dev/root -device virtio-9p-pci,fsdev=host_bind_fs0,mount_tag=bind0 -device virtio-9p-pci,fsdev=host_bind_fs1,mount_tag=bind1 -device virtio-9p-pci,fsdev=host_bind_fs2,mount_tag=bind2 -device intel-iommu,intremap=on -enable-kvm -fsdev local,id=host_bind_fs2,security_model=none,path=/home/jgg -fsdev local,id=host_bind_fs1,security_model=none,path=/logs -fsdev local,id=host_fs,security_model=none,path=/mnt/self -fsdev local,id=host_bind_fs0,security_model=none,path=/plugins -fw_cfg etc/sercon-port,string=2 -kernel /home/jgg/oss/iommufd/build-x86/arch/x86/boot/bzImage -m 1G -machine q35,kernel-irqchip=split -mon chardev=stdio -net nic,model=virtio,macaddr=52:54:cc:47:6b:37 -net user,hostfwd=tcp:127.0.0.1:40353-:22 -no-reboot -nodefaults -nographic -smp 20 -vga none

Jason