Le 10/02/2025 à 20:52, Eddie James a écrit :
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In non-smp configurations, crash_kexec_prepare is never called in
the crash shutdown path. One result of this is that the crashing_cpu
variable is never set, preventing crash_save_cpu from storing the
NT_PRSTATUS elf note in the core dump.
Fixes: c7255058b543 ("powerpc/crash: save cpu register data in
crash_smp_send_stop()")
Signed-off-by: Eddie James <eaja...@linux.ibm.com>
---
arch/powerpc/kexec/crash.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/powerpc/kexec/crash.c b/arch/powerpc/kexec/crash.c
index 9ac3266e49652..8c11cfd19e734 100644
--- a/arch/powerpc/kexec/crash.c
+++ b/arch/powerpc/kexec/crash.c
@@ -359,7 +359,11 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
if (TRAP(regs) == INTERRUPT_SYSTEM_RESET)
is_via_system_reset = 1;
+#ifdef CONFIG_SMP
I see no obvious reason to use #ifdef instead of IS_ENABLED(CONFIG_SMP),
is there any ?
Ref
https://docs.kernel.org/process/coding-style.html#conditional-compilation
crash_smp_send_stop();
+#else
+ crash_kexec_prepare();
+#endif
crash_save_cpu(regs, crashing_cpu);
--
2.43.5
