Problem for testing linux-next

Hi, all. I'm trying to test linux-next. I'm using QEMU for testing. I cloned linux-next repository and checkout to last tag next-20210812. I compiled with simple command below. make menuconfig make & make modules_install & make install and rebooted system. and it failed. It hangs after the message "freeing unused kernel image (init mem) memory" after about 500 seconds, it prints call trace including "x2apic_send_IPI" and it blocked. I want to copy and past it to here. but I don't know how to see the dmesg in last failed session. Is there any wrong configuration for compiling? I would paste it if I could copy the error message. Thanks, Sidong