Date: Fri, 3 Jan 2003 18:34:41 -0800 From: Arun Sharma <adsharma@unix-os.sc.intel.com> To: alc@freebsd.org Cc: freebsd-ia64@freebsd.org Subject: Re: Assertion failure in vm_page.c:289 Message-ID: <20030103183441.A3425@unix-os.sc.intel.com> In-Reply-To: <20030103180935.A3170@unix-os.sc.intel.com>; from adsharma on Fri, Jan 03, 2003 at 06:09:35PM -0800 References: <20030103180935.A3170@unix-os.sc.intel.com>
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Looking at i386 code, this seems to be the missing lock.
-Arun
--- pmap.c- Sat Jan 4 00:14:49 2003
+++ pmap.c Sat Jan 4 02:30:57 2003
@@ -1694,7 +1694,9 @@
*/
if (opa) {
int error;
+ vm_page_lock_queues();
error = pmap_remove_pte(pmap, pte, va, 0, 0);
+ vm_page_unlock_queues();
if (error)
panic("pmap_enter: pte vanished, va: 0x%lx", va);
}
On Fri, Jan 03, 2003 at 06:09:35PM -0800, Arun Sharma wrote:
> Alan,
>
> It looks like you added this assertion on Dec 28th.
>
> void
> vm_page_flag_clear(vm_page_t m, unsigned short bits)
> {
>
> mtx_assert(&vm_page_queue_mtx, MA_OWNED); <-----
> m->flags &= ~bits;
> }
>
> and I'm seeing the assertion failure right at startup (after execing
> /sbin/init) on a ia64 box. Is it possible that there was an accompanying
> change that was made to i386, but not ia64 ?
>
> -Arun
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