rust-osdev / rust-osdev/bootloader

Loading kernel is very slow

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#403 8 comments 0 reactions 0 assignees View on GitHub

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Dominant language
Rust
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Forks
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Description

The bootloader is stuck on 'loading kernel...' (apparently in stage 2) for about 10 seconds. I am using qemu with kvm enabled, booting via bios.

qemu-system-x86_64 -enable-kvm -drive format=raw,file=os.img -serial stdio

I find this surprising, as on 0.9.23 it was practically instantaneous. Is this expected?

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Research direction

Reproduce the delay with the provided qemu-system-x86_64 command and os.img, then compare behavior with version 0.9.23. Trace the bootloader's stage 2 kernel-loading path to identify what accounts for the roughly 10-second pause. Done means the regression is explained and the expected behavior or a verified fix is established.

Written by the indexing model from the issue text.

Assessment

Tech stack
rust
Domain
operating-systems
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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