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 <[EMAIL PROTECTED]>
--
arch/um/os-Linux/start_up.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
Index: test/arch/um/os-Linux/start_up.c
===================================================================
--- test.orig/arch/um/os-Linux/start_up.c 2007-03-06 10:21:43.000000000
-0500
+++ test/arch/um/os-Linux/start_up.c 2007-03-06 10:43:02.000000000 -0500
@@ -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
-------------------------------------------------------------------------
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