39 lines
1.1 KiB
Diff
39 lines
1.1 KiB
Diff
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From 1fd01b81fc1d7ba1a0dde4bfd10e6ad9189e8376 Mon Sep 17 00:00:00 2001
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From: zhangzikang <zhangzikang@kylinos.cn>
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Date: Fri, 16 Aug 2024 14:45:33 +0800
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Subject: [PATCH] support vmp_area_list replaced with VMALLOC_START
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---
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memory.c | 11 ++++++++++-
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1 file changed, 10 insertions(+), 1 deletion(-)
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diff --git a/memory.c b/memory.c
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index 86ccec5..c3c18a2 100644
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--- a/memory.c
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+++ b/memory.c
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@@ -17218,11 +17218,20 @@ first_vmalloc_address(void)
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{
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static ulong vmalloc_start = 0;
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ulong vm_struct, vmap_area;
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+ char *vmalloc_start_string;
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if (DUMPFILE() && vmalloc_start)
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return vmalloc_start;
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- if (vt->flags & USE_VMAP_AREA) {
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+ /*
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+ * 'vmap_area_list' and 'vmlist' in Linux 6.9 and later kernels might be
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+ * empty, prefer NUMBER(VMALLOC_START) if exported in vmcoreinfo.
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+ */
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+ vmalloc_start_string = pc->read_vmcoreinfo("NUMBER(VMALLOC_START)");
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+ if (vmalloc_start_string) {
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+ vmalloc_start = htol(vmalloc_start_string, QUIET, NULL);
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+ free(vmalloc_start_string);
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+ }else if (vt->flags & USE_VMAP_AREA) {
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get_symbol_data("vmap_area_list", sizeof(void *), &vmap_area);
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if (!vmap_area)
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return 0;
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--
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2.43.0
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