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race condition of APs #131

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CorruptedByCPU opened this issue Dec 9, 2022 · 0 comments
Open

race condition of APs #131

CorruptedByCPU opened this issue Dec 9, 2022 · 0 comments
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bug Something isn't working good first issue Good for newcomers

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@CorruptedByCPU
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occurs: spontaneously, when more than 1 cpu core is used

find why task_ap_address[ cpu_id ] doesn't contain task pointer at kernel_task
it might be race condition at AP initialization -_-
bypass created. is safe for system

kernel_task:

	; [...]

	; bug, AP doesn't have information about currently executed task?
	test	r10,	r10
	jnz	.ok

	; set initial task as closed
	mov	r10,	qword [r8 + KERNEL_STRUCTURE.task_queue_address]

.ok:

	; [...]
@CorruptedByCPU CorruptedByCPU added bug Something isn't working good first issue Good for newcomers labels Dec 9, 2022
@CorruptedByCPU CorruptedByCPU pinned this issue Dec 9, 2022
@CorruptedByCPU CorruptedByCPU unpinned this issue Dec 9, 2022
@CorruptedByCPU CorruptedByCPU pinned this issue Dec 9, 2022
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