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Kernel: Dump list of processes and their memory usage when OOMing

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This commit is contained in:
Andreas Kling 2022-08-14 21:56:51 +02:00
parent 9e9924115f
commit 3c7b0dab0b
1 changed files with 14 additions and 1 deletions
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15
Kernel/Memory/MemoryManager.cpp
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@ -828,8 +828,21 @@ ErrorOr<CommittedPhysicalPageSet> MemoryManager::commit_physical_pages(size_t pa
{ {
VERIFY(page_count > 0); VERIFY(page_count > 0);
SpinlockLocker lock(s_mm_lock); SpinlockLocker lock(s_mm_lock);
if (m_system_memory_info.physical_pages_uncommitted < page_count) if (m_system_memory_info.physical_pages_uncommitted < page_count) {
dbgln("MM: Unable to commit {} pages, have only {}", page_count, m_system_memory_info.physical_pages_uncommitted);
Process::for_each([&](Process const& process) {
dbgln("{}({}) resident:{}, shared:{}, virtual:{}",
process.name(),
process.pid(),
process.address_space().amount_resident() / PAGE_SIZE,
process.address_space().amount_shared() / PAGE_SIZE,
process.address_space().amount_virtual() / PAGE_SIZE);
return IterationDecision::Continue;
});
return ENOMEM; return ENOMEM;
}
m_system_memory_info.physical_pages_uncommitted -= page_count; m_system_memory_info.physical_pages_uncommitted -= page_count;
m_system_memory_info.physical_pages_committed += page_count; m_system_memory_info.physical_pages_committed += page_count;