diff --git a/kernel/run-qemu-script b/kernel/run-qemu-script
new file mode 100755
index 0000000..75e2b3d
--- /dev/null
+++ b/kernel/run-qemu-script
@@ -0,0 +1,430 @@
+#!/bin/bash
+
+# The contents are adopted from xbuild verbose output.
+if ! [ -d outdir ]
+then
+  echo "You have to \`mkdir outdir\` first."
+  echo "If you know what you're doing, do this yourself, otherwise quit."
+  exit 1
+fi
+
+
+rustc --crate-name core /home/dzy/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcore/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=3 \
+    -C debuginfo=2 \
+    -Z force-unstable-if-unmarked \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json
+
+
+# omit build_script_build
+rustc --crate-name compiler_builtins /home/dzy/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/libcompiler_builtins/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=3 \
+    -C debuginfo=2 \
+    -Z force-unstable-if-unmarked \
+    --cfg 'feature="compiler-builtins"' \
+    --cfg 'feature="mem"' \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir
+
+
+
+rustc --crate-name alloc /home/dzy/.rustup/toolchains/nightly-x86_64-unknown-linux-gnu/lib/rustlib/src/rust/src/liballoc/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=3 \
+    -C debuginfo=2 \
+    -Z force-unstable-if-unmarked \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir
+
+
+
+rustc --crate-name semver_parser /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/semver-parser-0.7.0/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name cfg_if /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/cfg-if-0.1.6/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name spin /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/spin-0.4.10/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --cfg 'feature="const_fn"' \
+    --cfg 'feature="default"' \
+    --cfg 'feature="once"' \
+    --cfg 'feature="unstable"' \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name cc /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/cc-1.0.25/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name static_assertions /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/static_assertions-0.3.1/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name bit_field /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/bit_field-0.9.0/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name zero /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/zero-0.1.2/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name bit_vec /home/dzy/.cargo/git/checkouts/bit-vec-437fa4a002bd318d/9861a58d6e76/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name bitflags /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/bitflags-1.0.4/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --cfg 'feature="default"' \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name volatile /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/volatile-0.2.5/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name once /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/once-0.3.3/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name bbl /home/dzy/rust/RustOS/crate/bbl/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -C incremental=/home/dzy/rust/RustOS/kernel/target/riscv32-blog_os/debug/incremental \
+    -L $PWD/outdir
+
+
+
+rustc --crate-name log /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/log-0.4.6/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name linked_list_allocator /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/linked_list_allocator-0.6.3/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --cfg 'feature="default"' \
+    --cfg 'feature="spin"' \
+    --cfg 'feature="use_spin"' \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name lazy_static /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/lazy_static-1.2.0/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --cfg 'feature="spin"' \
+    --cfg 'feature="spin_no_std"' \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name xmas_elf /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/xmas-elf-0.6.2/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name bit_allocator /home/dzy/rust/RustOS/crate/bit-allocator/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -C incremental=/home/dzy/rust/RustOS/kernel/target/riscv32-blog_os/debug/incremental \
+    -L $PWD/outdir \
+
+
+
+
+rustc --edition=2018 --crate-name simple_filesystem /home/dzy/.cargo/git/checkouts/simplefilesystem-rust-868ccb44dbeefdea/249383f7e3f1/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --extern bit_vec=$PWD/outdir/libbit_vec.rlib \
+    --extern spin=$PWD/outdir/libspin.rlib \
+    --extern static_assertions=$PWD/outdir/libstatic_assertions.rlib \
+    --cap-lints allow
+
+
+rustc --edition=2018 --crate-name ucore_process /home/dzy/rust/RustOS/crate/process/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -C incremental=/home/dzy/rust/RustOS/kernel/target/riscv32-blog_os/debug/incremental \
+    --extern log=$PWD/outdir/liblog.rlib \
+    --extern spin=$PWD/outdir/libspin.rlib \
+    -L $PWD/outdir 
+
+
+
+
+rustc --edition=2018 --crate-name ucore_memory /home/dzy/rust/RustOS/crate/memory/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -C incremental=/home/dzy/rust/RustOS/kernel/target/riscv32-blog_os/debug/incremental \
+    --extern log=$PWD/outdir/liblog.rlib \
+    -L $PWD/outdir 
+
+
+
+
+rustc --crate-name semver /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/semver-0.9.0/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --cfg 'feature="default"' \
+    --out-dir $PWD/outdir \
+    -L $PWD/outdir \
+    --extern semver_parser=$PWD/outdir/libsemver_parser.rlib \
+    --cap-lints allow
+
+
+# omit build_script_build
+rustc --crate-name rustc_version /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/rustc_version-0.2.3/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    -L $PWD/outdir \
+    --extern semver=$PWD/outdir/libsemver.rlib \
+    --cap-lints allow
+
+
+# omit build_script_build
+rustc --crate-name bare_metal /home/dzy/.cargo/registry/src/github.com-1ecc6299db9ec823/bare-metal-0.2.4/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --cap-lints allow
+
+
+
+rustc --crate-name riscv /home/dzy/.cargo/git/checkouts/riscv-1e845b622ce46f1d/966eb26d5e8d/src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -L $PWD/outdir \
+    --extern bare_metal=$PWD/outdir/libbare_metal.rlib \
+    --extern bit_field=$PWD/outdir/libbit_field.rlib \
+    --extern bitflags=$PWD/outdir/libbitflags.rlib \
+    --cap-lints allow
+
+
+
+rustc --edition=2018 --crate-name ucore src/lib.rs \
+    --color never --crate-type lib --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -C incremental=/home/dzy/rust/RustOS/kernel/target/riscv32-blog_os/debug/incremental \
+    -L $PWD/outdir \
+    --extern bbl=$PWD/outdir/libbbl.rlib \
+    --extern bit_allocator=$PWD/outdir/libbit_allocator.rlib \
+    --extern bit_field=$PWD/outdir/libbit_field.rlib \
+    --extern bitflags=$PWD/outdir/libbitflags.rlib \
+    --extern lazy_static=$PWD/outdir/liblazy_static.rlib \
+    --extern linked_list_allocator=$PWD/outdir/liblinked_list_allocator.rlib \
+    --extern log=$PWD/outdir/liblog.rlib \
+    --extern once=$PWD/outdir/libonce.rlib \
+    --extern riscv=$PWD/outdir/libriscv.rlib \
+    --extern simple_filesystem=$PWD/outdir/libsimple_filesystem.rlib \
+    --extern spin=$PWD/outdir/libspin.rlib \
+    --extern ucore_memory=$PWD/outdir/libucore_memory.rlib \
+    --extern ucore_process=$PWD/outdir/libucore_process.rlib \
+    --extern volatile=$PWD/outdir/libvolatile.rlib \
+    --extern xmas_elf=$PWD/outdir/libxmas_elf.rlib \
+    -L native=/home/dzy/rust/RustOS/kernel/target/riscv32-blog_os/debug/build/ucore-6787973a04115b52/out \
+    -L native=/home/dzy/rust/RustOS/kernel/target/riscv32-blog_os/debug/build/ucore-6787973a04115b52/out -l static=atomic_rt -l static=sfsimg
+
+
+
+rustc --edition=2018 --crate-name ucore src/main.rs \
+    --color never --crate-type bin --emit=dep-info,link \
+    -C opt-level=1 \
+    -C debuginfo=2 \
+    -C debug-assertions=on \
+    --out-dir $PWD/outdir \
+    --target /home/dzy/rust/RustOS/kernel/riscv32-blog_os.json \
+    -C incremental=/home/dzy/rust/RustOS/kernel/target/riscv32-blog_os/debug/incremental \
+    -L $PWD/outdir \
+    --extern bbl=$PWD/outdir/libbbl.rlib \
+    --extern bit_allocator=$PWD/outdir/libbit_allocator.rlib \
+    --extern bit_field=$PWD/outdir/libbit_field.rlib \
+    --extern bitflags=$PWD/outdir/libbitflags.rlib \
+    --extern lazy_static=$PWD/outdir/liblazy_static.rlib \
+    --extern linked_list_allocator=$PWD/outdir/liblinked_list_allocator.rlib \
+    --extern log=$PWD/outdir/liblog.rlib \
+    --extern once=$PWD/outdir/libonce.rlib \
+    --extern riscv=$PWD/outdir/libriscv.rlib \
+    --extern simple_filesystem=$PWD/outdir/libsimple_filesystem.rlib \
+    --extern spin=$PWD/outdir/libspin.rlib \
+    --extern ucore=$PWD/outdir/libucore.rlib \
+    --extern ucore_memory=$PWD/outdir/libucore_memory.rlib \
+    --extern ucore_process=$PWD/outdir/libucore_process.rlib \
+    --extern volatile=$PWD/outdir/libvolatile.rlib \
+    --extern xmas_elf=$PWD/outdir/libxmas_elf.rlib \
+    -L native=/home/dzy/rust/RustOS/kernel/target/riscv32-blog_os/debug/build/ucore-6787973a04115b52/out \
+    -L native=/home/dzy/rust/RustOS/kernel/target/riscv32-blog_os/debug/build/ucore-6787973a04115b52/out
+
+
+
+
+cd ../riscv-pk && mkdir -p build && cd build
+
+../configure \
+        --with-arch=rv32imac \
+        --disable-fp-emulation \
+        --host=riscv32-unknown-elf \
+        --with-payload=../../kernel/outdir/ucore
+
+make 
+
+cp bbl ../../kernel/outdir/kernel.bin
+
+cd ../../kernel
+
+qemu-system-riscv32 -smp cores=4 -nographic -machine virt -kernel outdir/kernel.bin || [ $? -eq 11 ] # run qemu and assert it exit 11
+
+