I've had a look at the x86 code where this error comes from: /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ static inline const struct cpumask *cpumask_of_node(int node) { return node_to_cpumask_map[node]; }
So it seems the error arises because it is asked for a negative index from the node_to_cpumask_map array. Interestingly the same name for sparc has handling for the case the argument is -1: #define cpumask_of_node(node) ((node) == -1 ? \ cpu_all_mask : \ &numa_cpumask_lookup_table[node]) and so does powerpc: #define cpumask_of_node(node) ((node) == -1 ? \ cpu_all_mask : \ node_to_cpumask_map[node]) in drivers/base/arch_numa.c there is a debug version for this name which returns cpu_all_mask as sparc and powerpc for NUMA_NO_NODE (include/linux/numa.h:#define NUMA_NO_NODE (-1)): #ifdef CONFIG_DEBUG_PER_CPU_MAPS /* * Returns a pointer to the bitmask of CPUs on Node 'node'. */ const struct cpumask *cpumask_of_node(int node) { if (node == NUMA_NO_NODE) return cpu_all_mask; if (WARN_ON(node < 0 || node >= nr_node_ids)) return cpu_none_mask; if (WARN_ON(node_to_cpumask_map[node] == NULL)) return cpu_online_mask; return node_to_cpumask_map[node]; } EXPORT_SYMBOL(cpumask_of_node); #endif Based on these alternative implementations it seems as though cpumask_of_node for x86 should be something like: /* Returns a pointer to the cpumask of CPUs on Node 'node'. */ static inline const struct cpumask *cpumask_of_node(int node) { return node == -1 ? cpu_all_mask : node_to_cpumask_map[node]; } I have insufficient knowledge about this stuff to say that is definitely the case though. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2008157 Title: [SRU][Ubuntu 22.04.1]: Observed "Array Index out of bounds" Call Trace multiple times on Ubuntu 22.04.1 OS during boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2008157/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs