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nanos

nanovms / nanos

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enumerate and resolve unhandled heap allocation errors

wjhun
wjhun commented Jun 15, 2020

There are numerous areas in the kernel where a heap allocation failure is being silently ignored, merely asserted against or otherwise mishandled. Assertions may suffice for allocations on initialization (where system bringup would otherwise be impossible), but allocation failures which may reasonably happen during runtime must be addressed.

See, for example, #1199; all the various calls to the

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good first issue memory
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sunriseos / SunriseOS

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display_bsod panics in early boot

Orycterope
Orycterope commented Aug 28, 2019

display_bsod internally calls the map_framebuffer syscall to map the framebuffer, because we . were lazy and didn't want to duplicate code. However this syscall retrieves the current process to map it in its process memory.

When we're panicking during early boot, CURRENT_PROCESS is None and this panics in the panic handler.

We should instead do a second function that maps it in the k

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good first issue project-kernel type-bug
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