diff options
| author | Ionut Nechita <ionut.nechita@windriver.com> | 2026-09-01 10:10:41 +0300 |
|---|---|---|
| committer | Dave Hansen <dave.hansen@linux.intel.com> | 2026-09-02 14:25:16 -0700 |
| commit | d949fa7b1ec54c626b656f873b95d76b8ab0d143 (patch) | |
| tree | bd246f06bbd82665adbee67ea52d9ce1674778ea | |
| parent | 6664ad1026b558563702f9a1ce637df33e7c001e (diff) | |
crash: Update stale NR_CPUS_DEFAULT references in elfcorehdr sizing docs
The elfcorehdr reservation is now sized with NR_CPUS, but two comments
still name NR_CPUS_DEFAULT: the one above crash_handle_hotplug_event()
and the CRASH_MAX_MEMORY_RANGES help text.
Update both. Documentation only, no functional change.
Suggested-by: Jinjie Ruan <ruanjinjie@huawei.com>
Suggested-by: Bradley Morgan <brads@mainlining.org>
Signed-off-by: Ionut Nechita <ionut.nechita@windriver.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Bradley Morgan <brads@mainlining.org>
Reviewed-by: Bradley Morgan <include@grrlz.net>
Link: https://patch.msgid.link/20260901071041.16311-3-ionut.nechita@windriver.com
| -rw-r--r-- | kernel/Kconfig.kexec | 2 | ||||
| -rw-r--r-- | kernel/crash_core.c | 2 |
2 files changed, 2 insertions, 2 deletions
diff --git a/kernel/Kconfig.kexec b/kernel/Kconfig.kexec index 15632358bcf7..a97ed9605602 100644 --- a/kernel/Kconfig.kexec +++ b/kernel/Kconfig.kexec @@ -167,7 +167,7 @@ config CRASH_MAX_MEMORY_RANGES memory regions that the elfcorehdr buffer/segment can accommodate. These regions are obtained via walk_system_ram_res(); eg. the 'System RAM' entries in /proc/iomem. - This value is combined with NR_CPUS_DEFAULT and multiplied by + This value is combined with NR_CPUS and multiplied by sizeof(Elf64_Phdr) to determine the final elfcorehdr memory buffer/ segment size. The value 8192, for example, covers a (sparsely populated) 1TiB system diff --git a/kernel/crash_core.c b/kernel/crash_core.c index 2b36aa9fade0..d0bd2d0cf899 100644 --- a/kernel/crash_core.c +++ b/kernel/crash_core.c @@ -648,7 +648,7 @@ int crash_check_hotplug_support(void) * new list of CPUs and memory. To make changes to the elfcorehdr, it * should be large enough to permit a growing number of CPU and Memory * resources. One can estimate the elfcorehdr memory size based on - * NR_CPUS_DEFAULT and CRASH_MAX_MEMORY_RANGES. The elfcorehdr is + * NR_CPUS and CRASH_MAX_MEMORY_RANGES. The elfcorehdr is * excluded from SHA verification by default if the architecture * supports crash hotplug. */ |