Xdumpgo Tutorial Extra Quality

| Flag | Purpose | |------|---------| | --verify-checksums | Validate each page read | | --skip-bad-pages | Log errors but don't abort | | --page-size 4096 | Match system page size (default 4KB) |

xdumpgo verify --dump dump.bin --hashes hashes.txt If any hash mismatches, that page is corrupt. Extra quality means knowing exactly what’s broken. Full memory dumps are huge. Use sparse mode to skip zero-filled pages: xdumpgo tutorial extra quality

xdumpgo dump --pid 8888 --skip-bad-pages --verify-checksums --output healthy_state.bin Load this into GDB: | Flag | Purpose | |------|---------| | --verify-checksums

#!/bin/bash PID=$1 OUTPUT_DIR="./dumps/$(date +%Y%m%d_%H%M%S)_pid_$PID" mkdir -p $OUTPUT_DIR Use sparse mode to skip zero-filled pages: xdumpgo

xdumpgo dump --pid <PID> --output dump.bin

sudo xdumpgo dump --pid $PID --output $OUTPUT_DIR/full.bin --verify-checksums --skip-bad-pages --parallel 4 --hash-algo sha256 --hash-file $OUTPUT_DIR/hashes.txt --sparse --frozen-vm

xdumpgo dump --pid 1337 --output proc_dump.bin --verify-checksums --skip-bad-pages --page-size 4096 This produces a raw binary image of the process's memory space, skipping only the truly unreadable pages. The "extra quality" keyword implies moving beyond defaults. Use these four advanced switches: 2.1 Atomic Snapshots with --frozen-vm Standard dumps change while you read them (the "moving target" problem). Enable OS-level process freezing: