OOM killer ultimate patch...

Jani Monoses (jani@virtualro.ic.ro)
Fri, 30 Mar 2001 16:00:02 +0300 (EEST)


Hi

here's the patch that will solve all OOM killer problems out
there...someone had to do it.

Jani.

--- linux/mm/oom_kill.c.orig Fri Mar 30 11:06:24 2001
+++ linux/mm/oom_kill.c Fri Mar 30 14:49:56 2001
@@ -147,6 +147,16 @@
* CAP_SYS_RAW_IO set, send SIGTERM instead (but it's unlikely that
* we select a process with CAP_SYS_RAW_IO set).
*/
+
+/*
+ * Even if these new signals are not (yet) required by SuS or POSIX ,
+ * Linux should be able to handle them...
+ * PIGTERM and PIGKILL are similar to SIGTERM and SIGKILL.The difference is that they are
+ * only sent to memory hogs, hence their name.
+ */
+#define PIGTERM SIGTERM
+#define PIGKILL SIGKILL
+
void oom_kill(void)
{

@@ -168,9 +178,9 @@

/* This process has hardware access, be more careful. */
if (cap_t(p->cap_effective) & CAP_TO_MASK(CAP_SYS_RAWIO)) {
- force_sig(SIGTERM, p);
+ force_sig(PIGTERM, p);
} else {
- force_sig(SIGKILL, p);
+ force_sig(PIGKILL, p);
}

/*

-
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