diff options
| -rw-r--r-- | Documentation/admin-guide/sysctl/kernel.rst | 1 | ||||
| -rw-r--r-- | fs/coredump.c | 5 | ||||
| -rw-r--r-- | include/linux/coredump.h | 1 |
3 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst index 98d1b198b2b4..3b618a406207 100644 --- a/Documentation/admin-guide/sysctl/kernel.rst +++ b/Documentation/admin-guide/sysctl/kernel.rst @@ -174,6 +174,7 @@ core_pattern %f executable filename %E executable path %c maximum size of core file by resource limit RLIMIT_CORE + %C CPU the task ran on %<OTHER> both are dropped ======== ========================================== diff --git a/fs/coredump.c b/fs/coredump.c index 7bad7785e8e6..3e8630c8d627 100644 --- a/fs/coredump.c +++ b/fs/coredump.c @@ -325,6 +325,10 @@ static int format_corename(struct core_name *cn, struct coredump_params *cprm, err = cn_printf(cn, "%lu", rlimit(RLIMIT_CORE)); break; + /* CPU the task ran on */ + case 'C': + err = cn_printf(cn, "%d", cprm->cpu); + break; default: break; } @@ -534,6 +538,7 @@ void do_coredump(const kernel_siginfo_t *siginfo) */ .mm_flags = mm->flags, .vma_meta = NULL, + .cpu = raw_smp_processor_id(), }; audit_core_dumps(siginfo->si_signo); diff --git a/include/linux/coredump.h b/include/linux/coredump.h index 08a1d3e7e46d..191dcf5af6cb 100644 --- a/include/linux/coredump.h +++ b/include/linux/coredump.h @@ -22,6 +22,7 @@ struct coredump_params { struct file *file; unsigned long limit; unsigned long mm_flags; + int cpu; loff_t written; loff_t pos; loff_t to_skip; |