Haiku R1 Beta 4 hangs during boot

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Last serial output is:

Haiku revision: hrev56578+59, debug level: 1
CPU: no microcode provided
reserve_io_interrupt_vectors: reserved 2 vectors starting from 98
CPU 0: type 0 family 15 extended_family 0 model 6 extended_model 0 stepping 3, string 'GenuineIntel'
No CPU topology information available.
CPU 0: apic id 0, package 0, core 0, smt 0
CPU 0: features: fpu pse tsc msr pae cx8 sep pge cmov mmx fxsr sse sse2 popcnt rdrnd hypervisor erms 
CPU 0: patch_level 0
CPU: using TSC frequency from CPUID
reserve_io_interrupt_vectors: reserved 16 vectors starting from 0
using 32 bit paging (PAE not needed)
mark_page_range_in_use(0x0, 0x100): start page is before free list
mark_page_range_in_use(0x0, 0xa0): start page is before free list

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This issue only happens when booting from iso, so I've updated the haiku profile to beta4: http://copy.sh/v86/?profile=haiku