Command "qemu-system-riscv64 -machine virt
-m 2G -smp 1 -numa node,mem=1G -numa node,mem=1G"
would trigger this problem.Backtrace with:
#0 0x0000555555b5b1a4 in riscv_numa_get_default_cpu_node_id at
../hw/riscv/numa.c:211
#1 0x00005555558ce510 in machine_numa_finish_cpu_init at
../hw/core/machine.c:1230
#2 0x00005555558ce9d3 in machine_run_board_init at ../hw/core/machine.c:1346
#3 0x0000555555aaedc3 in qemu_init_board at ../softmmu/vl.c:2513
#4 0x0000555555aaf064 in qmp_x_exit_preconfig at ../softmmu/vl.c:2609
#5 0x0000555555ab1916 in qemu_init at ../softmmu/vl.c:3617
#6 0x000055555585463b in main at ../softmmu/main.c:47
This commit fixes the issue by adding parameter checks.
Signed-off-by: Yin Wang <yin.w...@intel.com>
Reviewed-by: LIU Zhiwei <zhiwei_...@linux.alibaba.com>
Reviewed-by: Weiwei Li <liwei...@iscas.ac.cn>
---
hw/riscv/numa.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/hw/riscv/numa.c b/hw/riscv/numa.c
index 4720102561..a1bb312cd0 100644
--- a/hw/riscv/numa.c
+++ b/hw/riscv/numa.c
@@ -207,6 +207,12 @@ int64_t riscv_numa_get_default_cpu_node_id(const
MachineState *ms, int idx)
{
int64_t nidx = 0;
+ if (ms->numa_state->num_nodes > ms->smp.cpus) {
+ error_report("Number of CPUs used by NUMA nodes (%d)"
+ " cannot exceed the number of available CPUs (%d).",
+ ms->numa_state->num_nodes, ms->smp.max_cpus);
+ exit(EXIT_FAILURE);
+ }
if (ms->numa_state->num_nodes) {
nidx = idx / (ms->smp.cpus / ms->numa_state->num_nodes);
if (ms->numa_state->num_nodes <= nidx) {
--
2.34.1
