Re: BUG: arch/x86/kvm/mmu/mmu.c:3722: kvm_mmu_load+0x407/0x420

[Sean Christopherson]

On Fri, May 29, 2020 at 12:59:40AM +0530, Naresh Kamboju wrote:
> While running selftest kvm set_memory_region_test on x86_64 linux-next kernel
> 5.7.0-rc6-next-20200518 the kernel BUG noticed.
> 
> steps to reproduce: (always reproducible )
> -------------------------
> cd /opt/kselftests/default-in-kernel/kvm
> ./set_memory_region_test
> 
> BAD: next-20200518 (still reproducible on next-20200526)
> GOOD: next-20200515
> git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> kernel config:
> http://snapshots.linaro.org/openembedded/lkft/lkft/sumo/intel-corei7-64/lkft/linux-next/777/config
> 
> kernel crash log,
> -----------------------
> [   33.074161] ------------[ cut here ]------------
> [   33.079845] kernel BUG at /usr/src/kernel/arch/x86/kvm/mmu/mmu.c:3722!

I'm 99% certain this is already fixed[*], I'll double check to confirm.

[*] https://lkml.kernel.org/r/20200527085400.23759-1-sean.j.christopherson@xxxxxxxxx