Mali Mount Upgrade Tool Online
She wrote a small shim in Rust (for memory safety) that intercepted the tool's TLB flush calls. Instead of the old invalidate_all (which cleared everything, causing the null pointer fault), she implemented a phased, address-space-specific invalidation based on Sissoko's diagram.
The terminal logged:
The tool was ancient. Written in a mix of C and ARMv8 assembly, it bypassed the kernel's memory manager to directly reprogram the MMU (Memory Management Unit) page tables for the Mali GPU's internal "mount points"—the logical interfaces between GPU cores and the system's DRAM.
Everyone knew the tool was fragile. But no one knew why . Elena found a comment in the source code, buried under 17 #ifdef blocks:
"Run the mount upgrade tool again," her lead said, yawning. It was 11 PM.