Re: panic at vm_page_wire with FreeBSD 9.0 Beta 3

Yes that seems to be the problem. It will is for out of tree modules.
http://www.freebsd.org/cgi/query-pr.cgi?pr=161887 . I have to verify if
moving the module to /usr/src/ tree fixes the problem.

Thanks,
Penta

On Tue, Nov 1, 2011 at 2:04 AM, K. Macy <kmacy_at_freebsd.org> wrote:

> Someone was seeing the same issue with the vmtools kmod. The only
> thing that might make sense is that the page lock array is defined as
> being a different size in your kmod as in the kernel itself so the
> lock corresponding to the page you're locking differs between the two
> files.
>
> Cheers
>
> On Fri, Oct 21, 2011 at 5:25 PM, Penta Upa <bsdboot_at_gmail.com> wrote:
> > Hi,
> >
> > I'm facing a kernel panic at vm_page_wire(). Page is locked with
> > vm_page_lock() yet i get the following panic
> > panic: mutex page lock not owned at /usr/src/sys/vm/vm_page:1845
> >
> > Code sequence is as below
> > vm_page_lock(pp);
> > vm_page_lock_assert(pp, MA_OWNED); /* No panic here */
> > vm_page_wire(pp); /* Panic here for the same assertion as above, strange
> */
> > vm_page_unlock(pp);
> >
> > Kernel on the system is unchanged after install. The only thing which
> > occurred out the way was that the first time install failed for checksum
> > mismatch for src.txz. Also there were some SCSI errors/warnings with the
> CD
> > drive during install. So the next time, i only installed the base and
> > kernel and later unpacked src.txz under /usr/src . Could this lead to any
> > issues ?
> >
> > Attached is a test module (vmtest) and the makefile used. Uname output
> from
> > the system is
> >
> > FreeBSD scache 9.0-BETA3 FreeBSD 9.0-BETA3 #0: Sat Sep 24 21:31:28 UTC
> > 2011
> > root_at_farrell.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  amd64
> >
> > Is there anything i'm doing wrong here ? Kindly help.
> >
> > Regards,
> > Penta
> >
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