[PATCH 0/6] bt fixes and cleanup for ppc64
by Hari Bathini
This patch series fixes a couple of issues with bt on ppc64 and also
does some code cleanup.
Patch #1 fixes the broken '-S' option on ppc64. The next patch changes
h/w interrupt stack allocation to dynamic as this field remains unused
in most cases. The next patch renames ppc64_paca_init() function to
ppc64_paca_percpu_offset_init() to reflect what the function actually
does. Patch#4 adds support to process backtrace when the stack pointer
is in an emergency SP. The next patch adds support to print emergency
stack data. And the last patch ensures a variable is used instead of
machdep->machspec to optimize code and improve readability.
Hari Bathini (6):
ppc64: fix bt for '-S' case
ppc64: dynamically allocate h/w interrupt stack
ppc64: rename ppc64_paca_init to ppc64_paca_percpu_offset_init
ppc64: handle backtrace when CPU is in an emerency stack
ppc64: print emergency stacks info with 'mach -e'
ppc64: use a variable for machdep->machspec
defs.h | 14 +-
help.c | 31 ++++
ppc64.c | 528 +++++++++++++++++++++++++++++++++++++++-----------------
3 files changed, 417 insertions(+), 156 deletions(-)
--
2.35.3
2 years, 5 months
- 2
- 10
[ [PATCH]] arm64: Fix for st->_stext_vmlinux not initialized when set VA_BITS_ACTUAL
by Qianli Zhao
From: Qianli Zhao <qianli.zhao(a)horizon.ai>
Setting st->_stext_vmlinux to UNINITIALIZED to search for "_stext" from the vmlinux
Without the patch, if we do not enable kaslr, will get the wrong
MODULES/VMALLOC ranges, cause parsing dump failure
Signed-off-by: Qianli Zhao <qianli.zhao(a)horizon.ai>
---
arm64.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arm64.c b/arm64.c
index 0f615cf..4458a66 100644
--- a/arm64.c
+++ b/arm64.c
@@ -149,6 +149,9 @@ arm64_init(int when)
ms = machdep->machspec;
+ if (ms->VA_BITS_ACTUAL)
+ st->_stext_vmlinux = UNINITIALIZED;
+
if (!ms->kimage_voffset && STREQ(pc->live_memsrc, "/dev/crash"))
ioctl(pc->mfd, DEV_CRASH_ARCH_DATA, &ms->kimage_voffset);
--
2.17.1
2 years, 5 months
- 4
- 11