[Crash-utility] Re: [PATCH] loongarch64: fix mem section init failure
On 8/24/26 3:02 PM, Dave Young wrote:
The loongarch64 SECTION_SIZE_BITS does not match the mainline kernel code.
crash test failed with mem_section init failure due to access non exist
memory address for mem sections caused by wrong NR_SECTION_ROOTS
error msg:
crash: read error: kernel virtual address: 90000000a0000000 type: "memory
section"
BTW, I checked mainline kernel log the SECTION_SIZE_BITS is 29 since the first commit. So
I suspect previous crash loongarch support was tested with some vendor or distribution
kernel. Wangming, can you confirm? If this is true then please ensure patches always
tested with mainline kernel.
Thanks!
Signed-off-by: Dave Young <yangrr.2009(a)tsinghua.org.cn>
---
defs.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
Index: crash/defs.h
===================================================================
--- crash.orig/defs.h 2026-08-18 09:40:48.392309457 +0800
+++ crash/defs.h 2026-08-24 14:46:52.133057387 +0800
@@ -3903,7 +3903,7 @@
#define TIF_SIGPENDING (1)
-#define _SECTION_SIZE_BITS 28
+#define _SECTION_SIZE_BITS 29
#define _MAX_PHYSMEM_BITS 48
#endif /* LOONGARCH64 */
--
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