TITLE: ASSERT FAILED in fbl::WAVLTree::iterator_impl::advance

gfxconsole: rows 48, columns 113, extray 0
stopping other cpus

ZIRCON KERNEL PANIC

UPTIME: 1558452ms
BUILDID git-93f14256334010c7d11fa34fea4fd9e49880e132

dso: id=2792436d6b3e6202542e152902c480c97da3d5d7 base=0xffffffff00100000 name=zircon.elf
panic (caller 0xffffffff001c7025 frame 0xffffff96fb75ad60): DEBUG ASSERT FAILED at (system/ulib/fbl/include/fbl/intrusive_wavl_
tree.h:652): PtrTraits::IsValid(ns->parent_)
platform_halt suggested_action 0 reason 2
Halting...
bt#00: 0x00105e46 platform_halt platform/pc/power.cpp:122
bt#01: 0x001aa1a4 _panic lib/debug/debug.cpp:39
bt#02: [ inline ] fbl::WAVLTree::iterator_impl::advance system/ulib/fbl/include/fbl/intrusive_wavl_tree.h:641
bt#02: [ inline ] fbl::WAVLTree::iterator_impl::operator++ system/ulib/fbl/include/fbl/intrusive_wavl_tree.h:572
bt#02: [ inline ] lambda vm/vm_address_region.cpp:808
bt#02: 0x001c5bd7 VmAddressRegion::NonCompactRandomizedRegionAllocatorLocked vm/vm_address_region.cpp:851
bt#03: 0x001c7025 VmAddressRegion::CreateSubVmarInternal vm/vm_address_region.cpp:157
bt#04: 0x001c759d VmAddressRegion::CreateSubVmar vm/vm_address_region.cpp:218
bt#05: 0x0016ba19 VmAddressRegionDispatcher::Allocate object/vm_address_region_dispatcher.cpp:144
bt#06: 0x00199357 sys_vmar_allocate syscalls/vmar.cpp:53
bt#07: [ inline ] operator() syscall-kernel-wrappers.inc:539
bt#07: [ inline ] lambda syscalls/syscalls.cpp:60
bt#07: 0x00178f4d wrapper_vmar_allocate syscall-kernel-wrappers.inc:544
bt#08: 0x00116d0e x86_syscall syscall-kernel-branches.S:80
bt#09: end
halting cpu 1
vector 8
double fault, halting
 CS:                0x33 RIP:     0x58ce83a74210 EFL:            0x10202 CR2: 0xfffffffffffffff8
 RAX:                  0 RBX:                  0 RCX:                  0 RDX:                  0
 RSI:                  0 RDI:                  0 RBP:                  0 RSP:                  0
  R8:                  0  R9:                  0 R10:                  0 R11:                  0
 R12:                  0 R13:                  0 R14:                  0 R15:                  0
errc:                  0
platform_halt suggested_action 0 reason 2
Halting...
bt#00: 0x00105e46 platform_halt platform/pc/power.cpp:122
bt#01: 0x00108b08 exception_die arch/x86/faults.cpp:100
bt#02: [ inline ] x86_df_handler arch/x86/faults.cpp:178
bt#02: [ inline ] handle_exception_types arch/x86/faults.cpp:352
bt#02: 0x00109443 x86_exception_handler arch/x86/faults.cpp:458
bt#03: 0x001164b7 interrupt_common arch/x86/exceptions.S:127
bt#04: end
Halted
entering panic shell loop
