diff options
| author | Eddie James <eajames@linux.ibm.com> | 2025-02-11 10:20:54 -0600 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-06-19 15:31:27 +0200 |
| commit | f54d2b7ac42b7d791a6584a8fbc4703d09790955 (patch) | |
| tree | cfa18f83af308c04e8ffb2644595f5569e178d39 | |
| parent | 4de0bb505fbaf941d41bd8373715758ed149f6d9 (diff) | |
powerpc/crash: Fix non-smp kexec preparation
[ Upstream commit 882b25af265de8e05c66f72b9a29f6047102958f ]
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 <eajames@linux.ibm.com>
Reviewed-by: Hari Bathini <hbathini@linux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20250211162054.857762-1-eajames@linux.ibm.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | arch/powerpc/kexec/crash.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/powerpc/kexec/crash.c b/arch/powerpc/kexec/crash.c index 9ac3266e4965..a325c1c02f96 100644 --- a/arch/powerpc/kexec/crash.c +++ b/arch/powerpc/kexec/crash.c @@ -359,7 +359,10 @@ void default_machine_crash_shutdown(struct pt_regs *regs) if (TRAP(regs) == INTERRUPT_SYSTEM_RESET) is_via_system_reset = 1; - crash_smp_send_stop(); + if (IS_ENABLED(CONFIG_SMP)) + crash_smp_send_stop(); + else + crash_kexec_prepare(); crash_save_cpu(regs, crashing_cpu); |