Date: Mon, 13 Dec 1999 08:40:07 -0800 (PST) From: Mitja Horvat <mitja@ksop-cscp.si> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/15420: 3.3-RELEASE Kernel freeze Message-ID: <199912131640.IAA96806@freefall.freebsd.org>
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The following reply was made to PR kern/15420; it has been noted by GNATS.
From: Mitja Horvat <mitja@ksop-cscp.si>
To: freebsd-gnats-submit@freebsd.org, mitja@ksop-cscp.si
Cc:
Subject: Re: kern/15420: 3.3-RELEASE Kernel freeze
Date: Mon, 13 Dec 1999 18:36:32 +0100
After rerunning the tests with more processes (10+) I noticed that random
kernel freezes were still happening. After digging a bit around the swapper
code I came up with a third patch. My machine with this patch applied is
stable although running for three hours with 15 memory hogs.
-------------------------------->8-------------------------------------------
diff -u sys.orig/vm/vm_pageout.c sys/vm/vm_pageout.c
--- sys.orig/vm/vm_pageout.c Sun Aug 29 18:33:38 1999
+++ sys/vm/vm_pageout.c Mon Dec 13 17:20:38 1999
@@ -1136,8 +1136,9 @@
* make sure that we have swap space -- if we are low on memory and
* swap -- then kill the biggest process.
*/
- if ((vm_swap_size == 0 || swap_pager_full) &&
- ((cnt.v_free_count + cnt.v_cache_count) < cnt.v_free_min)) {
+ if (vm_swap_size == 0 &&
+ (cnt.v_free_count + cnt.v_cache_count) < cnt.v_free_min ||
+ swap_pager_full) {
bigproc = NULL;
bigsize = 0;
for (p = allproc.lh_first; p != 0; p = p->p_list.le_next) {
@@ -1174,7 +1175,7 @@
bigproc->p_nice = PRIO_MIN;
resetpriority(bigproc);
wakeup(&cnt.v_free_count);
- }
+ }
}
return force_wakeup;
}
-------------------------------->8-------------------------------------------
Regards,
Mitja
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