More of the same message but with a different process.  I should note 
that I'm using this same kernel version and config without any problems 
(so far) on 8 other servers.  Might this be a memory or other hardware 
problem?

Brian

Bad page state in process 'nagios'
page:c1211b20 flags:0x40000001 mapping:00000000 mapcount:0 count:0
Trying to fix it up, but a reboot is needed
Backtrace:
  [<c044a16f>]  [<c044ab14>]  [<c0453e2c>]  [<c0453e2c>]  [<c045512c>] 
[<c04145ba>]  [<c04149e2>]  [<c04143e0>]  [<c06e5e65>] 
=======================
Bad page state in process 'nagios'
page:c1132400 flags:0x40000001 mapping:00000000 mapcount:0 count:0
Trying to fix it up, but a reboot is needed
Backtrace:
  [<c044a16f>]  [<c044ab14>]  [<c0453e2c>]  [<c045512c>]  [<c04145ba>] 
[<c04143e0>]  [<c06e5e65>]  =======================
Bad page state in process 'nagios'
page:c10a20c0 flags:0x40000001 mapping:00000000 mapcount:0 count:0
Trying to fix it up, but a reboot is needed
Backtrace:
  [<c044a16f>]  [<c044ab14>]  [<c0453e2c>]  [<c045512c>]  [<c04145ba>] 
[<c0402a98>]  [<c04143e0>]  [<c06e5e65>]  =======================
Bad page state in process 'nagios'
page:c1101ae0 flags:0x40000001 mapping:00000000 mapcount:0 count:0
Trying to fix it up, but a reboot is needed
Backtrace:
  [<c044a16f>]  [<c044ab14>]  [<c0453e2c>]  [<c045512c>]  [<c04145ba>] 
[<c040559e>]  [<c04143e0>]  [<c06e5e65>]  [<c06e0000>]  [<c053b305>] 
[<c0416a2c>]  [<c0402936>]  [<c0402a98>]  [<c06e0000>] 
=======================

Brian Kroth wrote:
> I started getting these messages after an upgrade from 
> hardened-sources-2.6.20-r10 to 2.6.22.r8.  Nothing changed from the old 
> config.  I just did "make oldconfig" and answered N to everything since 
> they weren't relevant.  In particular, nothing in PAX or GrSec menus 
> were changed, though whenever I get big nasty messages like this I 
> suspect one of them.  Can anyone give me some direction as to how to fix 
> this or what might be causing it?  I can post the full configs if need be.
> 
> Thanks,
> Brian
> 
> # dmesg
> 
> Oct 29 21:30:14 tux-mc Bad page state in process 'cactid'
> Oct 29 21:30:14 tux-mc page:c1467da0 flags:0x40000001 mapping:00000000 
> mapcount:0 count:0
> Oct 29 21:30:14 tux-mc Trying to fix it up, but a reboot is needed
> Oct 29 21:30:14 tux-mc Backtrace:
> Oct 29 21:30:14 tux-mc [<c044a16f>]  [<c044ab14>]  [<c0453e2c>] 
> [<c045512c>]  [<c04145ba>]  [<c04319d2>]  [<c0432ad3>]  [<c04212d3>] 
> [<c04143e0>]  [<c06e5e65>]  [<c06e007b>]  [<c06e0000>]  [<c0402a98>] 
> =======================
> Oct 29 21:30:15 tux-mc Bad page state in process 'cactid'
> Oct 29 21:30:15 tux-mc page:c159a480 flags:0x40000001 mapping:00000000 
> mapcount:0 count:0
> Oct 29 21:30:15 tux-mc Trying to fix it up, but a reboot is needed
> Oct 29 21:30:15 tux-mc Backtrace:
> Oct 29 21:30:15 tux-mc [<c044a16f>]  [<c044ab14>]  [<c0453e2c>] 
> [<c045512c>]  [<c04145ba>]  [<c06c995a>]  [<c04143e0>]  [<c06e5e65>] 
> [<c046007b>]  [<c06e0000>]  =======================
> 
> 
> 
> # uname -a
> 
> Linux tux-mc 2.6.22-hardened-r8 #1 SMP Mon Oct 29 21:05:58 CDT 2007 i686 
> Intel(R) Xeon(TM) CPU 2.80GHz GenuineIntel GNU/Linux
> 
> 
> # some .config sections
> 
> #
> # Security options
> #
> 
> #
> # Grsecurity
> #
> CONFIG_GRKERNSEC=y
> # CONFIG_GRKERNSEC_LOW is not set
> # CONFIG_GRKERNSEC_MEDIUM is not set
> # CONFIG_GRKERNSEC_HIGH is not set
> # CONFIG_GRKERNSEC_HARDENED is not set
> CONFIG_GRKERNSEC_CUSTOM=y
> 
> #
> # Address Space Protection
> #
> CONFIG_GRKERNSEC_KMEM=y
> CONFIG_GRKERNSEC_IO=y
> CONFIG_GRKERNSEC_PROC_MEMMAP=y
> CONFIG_GRKERNSEC_BRUTE=y
> CONFIG_GRKERNSEC_MODSTOP=y
> CONFIG_GRKERNSEC_HIDESYM=y
> 
> #
> # Role Based Access Control Options
> #
> CONFIG_GRKERNSEC_ACL_HIDEKERN=y
> CONFIG_GRKERNSEC_ACL_MAXTRIES=3
> CONFIG_GRKERNSEC_ACL_TIMEOUT=30
> 
> #
> # Filesystem Protections
> #
> CONFIG_GRKERNSEC_PROC=y
> CONFIG_GRKERNSEC_PROC_USER=y
> CONFIG_GRKERNSEC_PROC_ADD=y
> CONFIG_GRKERNSEC_LINK=y
> CONFIG_GRKERNSEC_FIFO=y
> CONFIG_GRKERNSEC_CHROOT=y
> CONFIG_GRKERNSEC_CHROOT_MOUNT=y
> CONFIG_GRKERNSEC_CHROOT_DOUBLE=y
> CONFIG_GRKERNSEC_CHROOT_PIVOT=y
> CONFIG_GRKERNSEC_CHROOT_CHDIR=y
> CONFIG_GRKERNSEC_CHROOT_CHMOD=y
> CONFIG_GRKERNSEC_CHROOT_FCHDIR=y
> CONFIG_GRKERNSEC_CHROOT_MKNOD=y
> CONFIG_GRKERNSEC_CHROOT_SHMAT=y
> CONFIG_GRKERNSEC_CHROOT_UNIX=y
> CONFIG_GRKERNSEC_CHROOT_FINDTASK=y
> CONFIG_GRKERNSEC_CHROOT_NICE=y
> CONFIG_GRKERNSEC_CHROOT_SYSCTL=y
> CONFIG_GRKERNSEC_CHROOT_CAPS=y
> 
> #
> # Kernel Auditing
> #
> CONFIG_GRKERNSEC_AUDIT_GROUP=y
> CONFIG_GRKERNSEC_AUDIT_GID=10005
> CONFIG_GRKERNSEC_EXECLOG=y
> CONFIG_GRKERNSEC_RESLOG=y
> CONFIG_GRKERNSEC_CHROOT_EXECLOG=y
> CONFIG_GRKERNSEC_AUDIT_CHDIR=y
> CONFIG_GRKERNSEC_AUDIT_MOUNT=y
> CONFIG_GRKERNSEC_AUDIT_IPC=y
> CONFIG_GRKERNSEC_SIGNAL=y
> CONFIG_GRKERNSEC_FORKFAIL=y
> CONFIG_GRKERNSEC_TIME=y
> CONFIG_GRKERNSEC_PROC_IPADDR=y
> # CONFIG_GRKERNSEC_AUDIT_TEXTREL is not set
> 
> #
> # Executable Protections
> #
> CONFIG_GRKERNSEC_EXECVE=y
> CONFIG_GRKERNSEC_SHM=y
> CONFIG_GRKERNSEC_DMESG=y
> CONFIG_GRKERNSEC_TPE=y
> CONFIG_GRKERNSEC_TPE_ALL=y
> # CONFIG_GRKERNSEC_TPE_INVERT is not set
> CONFIG_GRKERNSEC_TPE_GID=10006
> 
> #
> # Network Protections
> #
> CONFIG_GRKERNSEC_RANDNET=y
> CONFIG_GRKERNSEC_SOCKET=y
> CONFIG_GRKERNSEC_SOCKET_ALL=y
> CONFIG_GRKERNSEC_SOCKET_ALL_GID=10004
> CONFIG_GRKERNSEC_SOCKET_CLIENT=y
> CONFIG_GRKERNSEC_SOCKET_CLIENT_GID=10003
> CONFIG_GRKERNSEC_SOCKET_SERVER=y
> CONFIG_GRKERNSEC_SOCKET_SERVER_GID=10002
> 
> #
> # Sysctl support
> #
> CONFIG_GRKERNSEC_SYSCTL=y
> # CONFIG_GRKERNSEC_SYSCTL_ON is not set
> 
> #
> # Logging Options
> #
> CONFIG_GRKERNSEC_FLOODTIME=5
> CONFIG_GRKERNSEC_FLOODBURST=5
> 
> #
> # PaX
> #
> CONFIG_PAX=y
> 
> #
> # PaX Control
> #
> # CONFIG_PAX_SOFTMODE is not set
> CONFIG_PAX_EI_PAX=y
> CONFIG_PAX_PT_PAX_FLAGS=y
> CONFIG_PAX_NO_ACL_FLAGS=y
> # CONFIG_PAX_HAVE_ACL_FLAGS is not set
> # CONFIG_PAX_HOOK_ACL_FLAGS is not set
> 
> #
> # Non-executable pages
> #
> CONFIG_PAX_NOEXEC=y
> CONFIG_PAX_PAGEEXEC=y
> CONFIG_PAX_SEGMEXEC=y
> CONFIG_PAX_EMUTRAMP=y
> CONFIG_PAX_MPROTECT=y
> # CONFIG_PAX_NOELFRELOCS is not set
> # CONFIG_PAX_KERNEXEC is not set
> 
> #
> # Address Space Layout Randomization
> #
> CONFIG_PAX_ASLR=y
> CONFIG_PAX_RANDKSTACK=y
> CONFIG_PAX_RANDUSTACK=y
> CONFIG_PAX_RANDMMAP=y
> 
> #
> # Miscellaneous hardening features
> #
> # CONFIG_PAX_MEMORY_SANITIZE is not set
> # CONFIG_PAX_MEMORY_UDEREF is not set
> # CONFIG_KEYS is not set
> CONFIG_SECURITY=y
> # CONFIG_SECURITY_NETWORK is not set
> CONFIG_SECURITY_CAPABILITIES=y
> # CONFIG_SECURITY_ROOTPLUG is not set