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| author | Stéphane Graber <stgraber@ubuntu.com> | 2013-09-11 23:24:32 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2013-09-12 00:59:01 +0200 |
| commit | 65aafb1e7484b7434a0c1d4c593191ebe5776a2f (patch) | |
| tree | 163b908974a487e6e8bdfd893d20fb28234255d2 /Documentation/sysctl | |
| parent | __ptrace_may_access() should not deny sub-threads (diff) | |
| download | linux-65aafb1e7484b7434a0c1d4c593191ebe5776a2f.tar.xz linux-65aafb1e7484b7434a0c1d4c593191ebe5776a2f.zip | |
coredump: add new %P variable in core_pattern
Add a new %P variable to be used in core_pattern. This variable contains
the global PID (PID in the init namespace) as %p contains the PID in the
current namespace which isn't always what we want.
The main use for this is to make it easier to handle crashes that happened
within a container. With that new variables it's possible to have the
crashes dumped into the container or forwarded to the host with the right
PID (from the host's point of view).
Signed-off-by: Stéphane Graber <stgraber@ubuntu.com>
Reported-by: Hans Feldt <hans.feldt@ericsson.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Andy Whitcroft <apw@canonical.com>
Acked-by: Serge E. Hallyn <serge.hallyn@ubuntu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/sysctl')
| -rw-r--r-- | Documentation/sysctl/kernel.txt | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index ab7d16efa96b..9d4c1d18ad44 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -182,6 +182,7 @@ core_pattern is used to specify a core dumpfile pattern name. %<NUL> '%' is dropped %% output one '%' %p pid + %P global pid (init PID namespace) %u uid %g gid %d dump mode, matches PR_SET_DUMPABLE and |