As per Seth's suggestion, I tried ratelimiting the cma_alloc messages:
diff --git a/mm/cma.c b/mm/cma.c
index c7b39dd3b4f6..56d2a046f689 100644
--- a/mm/cma.c
+++ b/mm/cma.c
@@ -477,7 +477,7 @@ struct page *cma_alloc(struct cma *cma, size_t count,
unsigned int align,
page_kasan_tag_reset(page + i);
}
- if (ret && !no_warn) {
+ if (ret && !no_warn && printk_ratelimit()) {
pr_err("%s: alloc failed, req-size: %zu pages, ret: %d\n",
__func__, count, ret);
cma_debug_show_areas(cma);
This drops the cma_alloc error message count down from 10758 to 21.
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https://bugs.launchpad.net/bugs/1823753
Title:
arm64: cma_alloc errors at boot
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