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This patch adds PageFaultResponse::OutOfMemory which informs the fault handler that we were unable to allocate a necessary physical page and cannot continue. In response to this, the kernel will crash the current process. Because we are OOM, we can't symbolicate the crash like we normally would (since the ELF symbolication code needs to allocate), so we also communicate to Process::crash() that we're out of memory. Now we can survive "allocate 300 MB" (only the allocate process dies.) This is definitely not perfect and can easily end up killing a random innocent other process who happened to allocate one page at the wrong time, but it's a *lot* better than panicking on OOM. :^) |
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| .. | ||
| Boot | ||
| CPU.cpp | ||
| CPU.h | ||
| Interrupts.h | ||
| ISRStubs.h | ||