Rob Leathley wrote:
>
> [X] I have been suffering a lot of memory paging related Oops' on the
> above PC since upgrading to the 2.2.16 kernel. Most of these problems
> are fixed in 2.4.1 appart from the above. These problems don't appear
> on a faster machine (e.g. P3 733MHz) so could be related to race
> conditions? I appreciate that there is probably a bug in java 1.3.0 but
> it would be nice if it didn't kill the whole machine!
>
It's not a bug in java 1.3.0, that certain.
It's either a kernel bug or bad memory. Usually I'd say bad memory, but
your report is the third or forth one with __free_pages_ok(), so I
suspect a kernel bug.
Could you apply the attached patch to your kernel and run it until it
crashes again?
--
Manfred
--- linux.old/mm/page_alloc.c Sun Feb 18 20:06:11 2001
+++ linux/mm/page_alloc.c Sun Feb 18 20:05:59 2001
@@ -70,8 +70,15 @@
if (page->buffers)
BUG();
- if (page->mapping)
+ if (page->mapping) {
+ printk(KERN_EMERG "found bad mapping %lxh.\n",
+ (unsigned long)page->mapping);
+ printk(KERN_EMERG "page->mapping->nrpages: %d.\n",
+ (int)page->mapping->nrpages);
+ printk(KERN_EMERG "page->mapping->a_ops: [<%lxh>]\n",
+ (unsigned long)page->mapping->a_ops);
BUG();
+ }
if (!VALID_PAGE(page))
BUG();
if (PageSwapCache(page))
