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[PATCH] elf2dmp: Don't abandon when Prcb is set to 0
From: |
Akihiko Odaki |
Subject: |
[PATCH] elf2dmp: Don't abandon when Prcb is set to 0 |
Date: |
Sun, 11 Jun 2023 12:34:34 +0900 |
Prcb may be set to 0 for some CPUs if the dump was taken before they
start. The dump may still contain valuable information for started CPUs
so don't abandon conversion in such a case.
Signed-off-by: Akihiko Odaki <akihiko.odaki@daynix.com>
---
contrib/elf2dmp/main.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/contrib/elf2dmp/main.c b/contrib/elf2dmp/main.c
index d77b8f98f7..91c58e4424 100644
--- a/contrib/elf2dmp/main.c
+++ b/contrib/elf2dmp/main.c
@@ -312,6 +312,11 @@ static int fill_context(KDDEBUGGER_DATA64 *kdbg,
return 1;
}
+ if (!Prcb) {
+ eprintf("Context for CPU #%d is missing\n", i);
+ continue;
+ }
+
if (va_space_rw(vs, Prcb + kdbg->OffsetPrcbContext,
&Context, sizeof(Context), 0)) {
eprintf("Failed to read CPU #%d ContextFrame location\n", i);
--
2.40.1
- [PATCH] elf2dmp: Don't abandon when Prcb is set to 0,
Akihiko Odaki <=