| Message ID | 2b09b58c7586a4ca929400327d394fec3135fdd0.1446836443.git.geoff@infradead.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
diff --git a/arch/arm64/kernel/machine_kexec.c b/arch/arm64/kernel/machine_kexec.c index d2d7e90..482aae7 100644 --- a/arch/arm64/kernel/machine_kexec.c +++ b/arch/arm64/kernel/machine_kexec.c @@ -148,7 +148,13 @@ void machine_kexec(struct kimage *kimage) phys_addr_t reboot_code_buffer_phys; void *reboot_code_buffer; - BUG_ON(num_online_cpus() > 1); + if (num_online_cpus() > 1) { + if (in_crash_kexec) + pr_warn("kdump might fail because %d cpus are still online\n", + num_online_cpus()); + else + BUG(); + } reboot_code_buffer_phys = page_to_phys(kimage->control_code_page); reboot_code_buffer = phys_to_virt(reboot_code_buffer_phys);
From: AKASHI Takahiro <takahiro.akashi@linaro.org> We should try best in case of kdump. So even if not all secondary cpus have shut down, we do kdump anyway. --- arch/arm64/kernel/machine_kexec.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)