27 lines
932 B
Diff
27 lines
932 B
Diff
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xentrace: print calculated numbers in calculate_tbuf_size()
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(xen-unstable changeset 23092:45dafa422812)
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Print number of pages to allocate for per-cpu tracebuffer and metadata
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to ease debugging when allocation fails.
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Signed-off-by: Olaf Hering <olaf@aepfle.de>
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---
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xen/common/trace.c | 2 ++
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1 file changed, 2 insertions(+)
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Index: xen-4.1.1-testing/xen/common/trace.c
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===================================================================
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--- xen-4.1.1-testing.orig/xen/common/trace.c
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+++ xen-4.1.1-testing/xen/common/trace.c
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@@ -128,6 +128,8 @@ static int calculate_tbuf_size(unsigned
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t_info_words = num_online_cpus() * pages + t_info_first_offset;
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t_info_bytes = t_info_words * sizeof(uint32_t);
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t_info_pages = PFN_UP(t_info_bytes);
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+ printk(XENLOG_INFO "xentrace: requesting %u t_info pages for %u trace pages on %u cpus\n",
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+ t_info_pages, pages, num_online_cpus());
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return pages;
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}
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