buddyinfo: Add buddyinfo corelens module #41
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This commit implements buddyinfo corelens module that can dump details of each zone's buddy page allocator. The output is similar to 'cat /proc/buddyinfo', which lists the number of free memory blocks at each order. This module supports UEK 4, 5, 6, 7 for both x86 and aarch64. It is tested for these settings without crash. Signed-off-by: Jianfeng Wang <[email protected]>
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This looks good! I noticed the vmcore test failed on Gitlab. But I have a sneaking suspicion it's because there are some failures on main right now (fixed in my branch #40). I'm verifying that your tests pass if I rebase your branch on mine. If so, I'll merge it.
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For future reference, here is an example output of this module on a UEK-7 vmcore with two NUMA nodes. |
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Tests passed with the fixes, thanks! |
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This commit implements buddyinfo corelens module that can dump details of each zone's buddy page allocator.
The output is similar to 'cat /proc/buddyinfo', which lists the number of free memory blocks at each order.
This module supports UEK 4, 5, 6, 7 for both x86 and aarch64. It is tested for these settings without crash.