On Tue, 2008-10-28 at 08:21 -0400, Stephen Smalley wrote: > On Tue, 2008-10-28 at 14:10 +1100, Russell Coker wrote: > > Below are the syslog messages from a kernel panic when running 2.6.26. To > > trigger it I ran "semodule -i sendmail.pp" on a machine with the exim policy > > loaded (not something that you expect people to do - but not something you > > expect to cause a problem either) and load_policy went into an infinite loop > > (100% CPU use - strace reported no syscalls being made). At that > > stage "kill -9" seemed like the right solution, killing load_policy gave the > > following result. > > Can you make a tarball of your /etc/selinux directory prior to inserting > sendmail.pp available somewhere, and a copy of that sendmail.pp file? Also, if you have it, a copy of the final kernel policy that was triggering the problem when load_policy tried to load it. > > I've tried to reproduce it but have been unsuccessful. The machine in > > question is a Xen DomU, I believe that the hardware has ECC RAM and is of > > generally good quality. > > > > Message from syslogd@redcape at Tue Oct 28 03:04:31 2008 ... > > redcape kernel: [399681.381737] Eeek! page_mapcount(page) went negative! (-1) > > > > Message from syslogd@redcape at Tue Oct 28 03:04:31 2008 ... > > redcape kernel: [399681.381755] page pfn = 3 > > > > Message from syslogd@redcape at Tue Oct 28 03:04:31 2008 ... > > redcape kernel: [399681.381760] page->flags = 400 > > > > Message from syslogd@redcape at Tue Oct 28 03:04:31 2008 ... > > redcape kernel: [399681.381766] page->count = 1 > > > > Message from syslogd@redcape at Tue Oct 28 03:04:31 2008 ... > > redcape kernel: [399681.381770] page->mapping = 0000000000000000 > > > > Message from syslogd@redcape at Tue Oct 28 03:04:31 2008 ... > > redcape kernel: [399681.381780] vma->vm_ops = 0x0 > > > > Message from syslogd@redcape at Tue Oct 28 03:04:31 2008 ... > > redcape kernel: [399681.381799] ------------[ cut here ]------------ > > > > Message from syslogd@redcape at Tue Oct 28 03:04:31 2008 ... > > redcape kernel: [399681.381811] invalid opcode: 0000 [1] SMP > > > > Message from syslogd@redcape at Tue Oct 28 03:04:31 2008 ... > > redcape kernel: [399681.381828] Code: 80 e8 3c 0c fd ff 48 8b 85 90 00 00 00 > > 48 > > 85 c0 74 19 48 8b 40 20 48 85 c0 74 10 48 8b 70 58 48 c7 c7 66 52 4b 80 e8 17 > > 0c > > fd ff <0f> 0b eb fe 8b 77 18 41 58 5b 5d 83 e6 01 f7 de 83 c6 04 e9 6c > > -- Stephen Smalley National Security Agency -- This message was distributed to subscribers of the selinux mailing list. If you no longer wish to subscribe, send mail to majordomo@xxxxxxxxxxxxx with the words "unsubscribe selinux" without quotes as the message.
