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52767e1063
We already use MADV_NORESERVE to deal with sparse memory regions. Let's also set madvise(MADV_DONTDUMP), otherwise a crash of the process can result in us allocating all memory in the mmap'ed region for dumping purposes. This change implies that the mmap'ed rings won't be included in a coredump. If ever required for debugging purposes, we could mark only the mapped rings MADV_DODUMP. Ignore errors during madvise() for now. Reviewed-by: Raphael Norwitz <raphael@enfabrica.net> Acked-by: Stefano Garzarella <sgarzare@redhat.com> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20240214151701.29906-15-david@redhat.com> Tested-by: Mario Casquero <mcasquer@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> |
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