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8597538712
FADump capture kernel boots in restricted memory environment preserving the context of previous kernel to save vmcore. Supporting hugepages in such environment makes things unnecessarily complicated, as hugepages need memory set aside for them. This means most of the capture kernel's memory is used in supporting hugepages. In most cases, this results in out-of-memory issues while booting FADump capture kernel. But hugepages are not of much use in capture kernel whose only job is to save vmcore. So, disabling hugepages support, when fadump is active, is a reliable solution for the out of memory issues. Introducing a flag variable to disable HugeTLB support when fadump is active. Signed-off-by: Hari Bathini <hbathini@linux.vnet.ibm.com> Reviewed-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> |
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