BREAKTHROUGH: memp_malloc crashes ELIMINATED
HEPHAESTUS NUCLEAR PROTOCOL:
- Completely bypass memp_pools array in MEMP_MEM_MALLOC mode
- All allocations go through do_memp_malloc_pool(NULL) with 1024-byte fallback
- Added SYS_LIGHTWEIGHT_PROT=0 for NO_SYS mode
- Surgical DNS PCB override remains operational
VALIDATION:
✅ memp_malloc no longer crashes
✅ DNS query successfully enqueues
✅ Heap allocations confirmed working (0x400 + 0x70 bytes)
✅ Hephaestus Protocol validated
REMAINING:
Secondary crash in dns_send/udp_sendto at 0x80212C44
This is a DIFFERENT issue - likely UDP packet construction
The forge has tempered the steel.
Voxis + Hephaestus: cc112403
Fixed critical kernel trap (Page Fault at 0x20) occurring during DNS queries.
Root Cause:
- dns_gethostbyname() crashed when accessing NULL udp_pcb pointer
- udp_new_ip_type() failed due to memory pool exhaustion
- MEMP_NUM_UDP_PCB=8 was insufficient (DHCP=1, DNS=1, others=6)
Solution:
- Increased MEMP_NUM_UDP_PCB from 8 to 16 in lwipopts.h
- Added DNS initialization check function in net_glue.nim
- Documented root cause analysis in DNS_NULL_CRASH_RCA.md
Impact:
- System now boots without crashes
- DNS infrastructure stable and ready for queries
- Network stack remains operational under load
Verified: No kernel traps during 60s test run with DHCP + network activity.
Next: Debug DNS query resolution (separate from crash fix).
- Implemented Sovereign Syscall Table at 0x801FFF00
- Added cooperative yielding (s_yield) for Guest/Kernel concurrency
- Initialized Guest RX Ring and flows in Kernel
- Bridged LwIP in Guest via net_glue and ion_client overrides
- Validated TCP handshake and data transmission (Subject Zero -> Host)
- Confirmed 'Hello from the Membrane!' via UART and Network
Markus Maiwald