diff options
| author | Omar Sandoval <osandov@fb.com> | 2018-08-21 21:55:20 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-08-22 10:52:46 -0700 |
| commit | 23c85094fe1895caefdd19ef624ee687ec5f4507 (patch) | |
| tree | 13a0d0b93980e585384310a021b3772dc37b9e54 /kernel | |
| parent | eff4345e7fba0aac8665f00e8599b36946d9aaec (diff) | |
| download | lwn-23c85094fe1895caefdd19ef624ee687ec5f4507.tar.gz lwn-23c85094fe1895caefdd19ef624ee687ec5f4507.zip | |
proc/kcore: add vmcoreinfo note to /proc/kcore
The vmcoreinfo information is useful for runtime debugging tools, not just
for crash dumps. A lot of this information can be determined by other
means, but this is much more convenient, and it only adds a page at most
to the file.
Link: http://lkml.kernel.org/r/fddbcd08eed76344863303878b12de1c1e2a04b6.1531953780.git.osandov@fb.com
Signed-off-by: Omar Sandoval <osandov@fb.com>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Bhupesh Sharma <bhsharma@redhat.com>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: James Morse <james.morse@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/crash_core.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/crash_core.c b/kernel/crash_core.c index e7b4025c7b24..a683bfb0530f 100644 --- a/kernel/crash_core.c +++ b/kernel/crash_core.c @@ -14,8 +14,8 @@ #include <asm/sections.h> /* vmcoreinfo stuff */ -static unsigned char *vmcoreinfo_data; -static size_t vmcoreinfo_size; +unsigned char *vmcoreinfo_data; +size_t vmcoreinfo_size; u32 *vmcoreinfo_note; /* trusted vmcoreinfo, e.g. we can make a copy in the crash memory */ |