On Thu, Mar 30, 2017 at 03:31:12PM +0100, Mark Rutland wrote: > Hi, > > I'm seeing the splat below when running KVM on an arm64 host with > CONFIG_DEBUG_ATOMIC_SLEEP and CONFIG_LOCKDEP enabled. > > I saw this on v4.11-rc1, and I can reproduce the problem on the current > kvmarm master branch (563e2f5daa66fbc1). > > I've hacked noinlines into arch/arm/kvm/mmu.c in an attempt to get a > better backtrace; without this, the report says the call is at > arch/arm/kvm/mmu.c:299, which is somewhat confusing. Looking again, that initial kernel was not a vanilla v4.11-rc1, and I am *not* able to reproduce this issue with a vanilla v4.11-rc1. I believe I had applied an earlier fix for the locking issue Suzuki recently addressed, which was why my line numbers were off. I *can* trigger this issue with the current kvmarm master, and the log I posted is valid. Sorry for the bogus info; I will be more careful next time. Thanks, Mark.
