Cross-post to the *right* linux-mips list and hopefully we can have more expert eyes looking at this ...
Thanks. Jun On Wed, Jan 1, 2020 at 6:50 PM Jun Sun <[email protected]> wrote: > Hi, all, > > Debian/mips64el runs well on qemu-system-mips64el until I turned on smp > option with a number of 2 or higher. See the error message below. It > usually hangs pretty early on. > > I have experimented with different CPU types (e.g., 5KEc) and different > memory amont with no avail. Does anybody have an idea? > > I attached the kernel config for reference. It appears SMP kernel configs > are enabled properly. > > Thanks a lot! > > Jun > > qemu-system-mips64el -M malta -smp 2 -cpu MIPS64R2-generic -m 1314 -hda > hda.qcow2 -kernel vmlinux -initrd initrd.img -append 'root=/dev/sda1 > console=ttyS0 nokaslr' -nographic -net > user,hostfwd=tcp::2222-:22,hostfwd=tcp::8080-:80,hostfwd=tcp::8443-:443 > -net nic -serial mon:stdio > qemu-system-mips64el: warning: SPD cannot represent final 2MB of SDRAM > [ 0.000000] Linux version 4.19.0-6-5kc-malta ( > [email protected]) (gcc version 8.3.0 (Debian 8.3.0-6)) #1 > SMP Debian 4.19.67-2+deb10u1 (2019-09-20) > [ 0.000000] earlycon: uart8250 at I/O port 0x3f8 (options '38400n8') > [ 0.000000] bootconsole [uart8250] enabled > [ 0.000000] CPU0 revision is: 00010000 (MIPS GENERIC QEMU) > [ 0.000000] FPU revision is: 007f0000 > [ 0.000000] Checking for the multiply/shift bug... no. > [ 0.000000] Checking for the daddiu bug... no. > [ 0.000000] MIPS: machine is mti,malta > [ 0.000000] Software DMA cache coherency enabled > [ 0.000000] Determined physical RAM map: > [ 0.000000] memory: 0000000010000000 @ 0000000000000000 (usable) > [ 0.000000] memory: 0000000042200000 @ 0000000090000000 (usable) > > [HANG FOREVER AT HERE ...] > >
