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id = 1135
title = "Multiboot: invalid multiboot information block"
state = "opened"
created_at = "2022-08-01T14:09:39.403Z"
closed_at = "n/a"
labels = ["target: i386"]
url = "https://gitlab.com/qemu-project/qemu/-/issues/1135"
host-os = "Windows 11 with MSYS"
host-arch = "x86_64"
qemu-version = "4e06b3fc1b5e1ec03f22190eabe56891dc9c2236"
guest-os = "n/a"
guest-arch = "n/a"
description = """Breakpoint at 0x85d4, this is the entrypoint of this Multiboot loader.
According to the Multiboot specification, the EAX register should be a pointer to the Multiboot information block. When I am testing, it is 0x9500. However, when dumping the memory using `dump binary memory`, nearby memory areas are all zeros.
When dumping some bigger memory aeras, I found that the module hasbeen loaded to the memory successfully, altough MBI was broken."""
reproduce = """"""
additional = """multiboot: [multiboot](/uploads/55fdfcf30ada0af2d00badf11fcd308c/multiboot)
toop: [toop](/uploads/de3b63ae021303c544105ba1498f3373/toop)"""
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