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| author | Jeff Dike <jdike@addtoit.com> | 2007-05-06 23:51:00 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-07 21:13:00 +0200 |
| commit | 1d94cda04eb82feb87c932ac3d4aef1e9dc78a43 (patch) | |
| tree | 38883b3d8a45013ab58eacad7b85ad079f2cdcf9 /arch/um/os-Linux/start_up.c | |
| parent | uml: mark tt-mode code for future removal (diff) | |
| download | linux-1d94cda04eb82feb87c932ac3d4aef1e9dc78a43.tar.xz linux-1d94cda04eb82feb87c932ac3d4aef1e9dc78a43.zip | |
uml: print coredump limits
Print out core dump limits at boot time. This is to allow core dumps
to be collected if something goes very wrong and to tell if a core
dump isn't going to happen because of a resource limit.
Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/os-Linux/start_up.c')
| -rw-r--r-- | arch/um/os-Linux/start_up.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/um/os-Linux/start_up.c b/arch/um/os-Linux/start_up.c index 5178eba9afa5..1244179e6c83 100644 --- a/arch/um/os-Linux/start_up.c +++ b/arch/um/os-Linux/start_up.c @@ -17,6 +17,7 @@ #include <sys/time.h> #include <sys/wait.h> #include <sys/mman.h> +#include <sys/resource.h> #include <asm/unistd.h> #include <asm/page.h> #include <sys/types.h> @@ -329,8 +330,32 @@ static void __init check_ptrace(void) extern void check_tmpexec(void); +static void check_coredump_limit(void) +{ + struct rlimit lim; + int err = getrlimit(RLIMIT_CORE, &lim); + + if(err){ + perror("Getting core dump limit"); + return; + } + + printf("Core dump limits :\n\tsoft - "); + if(lim.rlim_cur == RLIM_INFINITY) + printf("NONE\n"); + else printf("%lu\n", lim.rlim_cur); + + printf("\thard - "); + if(lim.rlim_max == RLIM_INFINITY) + printf("NONE\n"); + else printf("%lu\n", lim.rlim_max); +} + void os_early_checks(void) { + /* Print out the core dump limits early */ + check_coredump_limit(); + check_ptrace(); /* Need to check this early because mmapping happens before the |