ALTQ and cpufreq(4)
CZUCZY Gergely
gergely.czuczy at harmless.hu
Tue Jun 3 08:47:15 UTC 2008
Hello,
I've met some quite strange reboots recently on my home gateway. I'm
trying to reduce its power consumption, so I've loaded the cpufreq(4) driver,
and enabled powerd. After this the box started to reboot randomly all over the
place. I started to think what can cause the trouble, removing the cpufreq(4)
support would be too trivial, so I've removed the ALTQ references from my
pf.conf, and surprisingly these accidental reboots gone away.
My guess is ALTQ has some problems with cpufreq(4). Before submitting a PR on
this, could someone also check this configuration, to be sure on this?
System info:
FreeBSD beeblebrox.harmless.lan 6.3-STABLE FreeBSD 6.3-STABLE #0: Sat May 31 18:35:15 CEST 2008 toor at beeblebrox.harmless.lan:/usr/obj/usr/src/sys/BEEBLEBROX i386
I'm using hfsc in my pf configuration.
Kernel config:
machine i386
cpu I686_CPU
ident BEEBLEBROX
maxusers 32
# To statically compile in device wiring instead of /boot/device.hints
#hints "GENERIC.hints" # Default places to look for devices.
makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
options SCHED_4BSD # 4BSD scheduler
options PREEMPTION # Enable kernel thread preemption
options INET # InterNETworking
#options INET6 # IPv6 communications protocols
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
options UFS_ACL # Support for access control lists
options UFS_DIRHASH # Improve performance on big directories
#options MD_ROOT # MD is a potential root device
options NFSCLIENT # Network Filesystem Client
options NFSSERVER # Network Filesystem Server
#options NFS_ROOT # NFS usable as /, requires NFSCLIENT
options MSDOSFS # MSDOS Filesystem
options CD9660 # ISO 9660 Filesystem
options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_GPT # GUID Partition Tables.
options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options COMPAT_FREEBSD5 # Compatible with FreeBSD5
options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
options KTRACE # ktrace(1) support
options SYSVSHM # SYSV-style shared memory
options SYSVMSG # SYSV-style message queues
options SYSVSEM # SYSV-style semaphores
options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time
extensions options ADAPTIVE_GIANT # Giant mutex is adaptive.
device apic # I/O APIC
# Bus support.
device eisa
device pci
# Floppy drives
device fdc
# ATA and ATAPI devices
device ata
device atadisk # ATA disk drives
device ataraid # ATA RAID drives
device atapicd # ATAPI CDROM drives
#device atapifd # ATAPI floppy drives
#device atapist # ATAPI tape drives
options ATA_STATIC_ID # Static device numbering
# SCSI peripherals
device scbus # SCSI bus (required for SCSI)
device ch # SCSI media changers
device da # Direct Access (disks)
device sa # Sequential Access (tape etc)
device cd # CD
device pass # Passthrough device (direct SCSI access)
device ses # SCSI Environmental Services (and SAF-TE)
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc # AT keyboard controller
device atkbd # AT keyboard
device psm # PS/2 mouse
device kbdmux # keyboard multiplexer
device vga # VGA video card driver
#device splash # Splash screen and screen saver support
# syscons is the default console driver, resembling an SCO console
device sc
# Enable this for the pcvt (VT220 compatible) console driver
#device vt
#options XSERVER # support for X server on a vt console
#options FAT_CURSOR # start with block cursor
#device agp # support several AGP chipsets
# Power management support (see NOTES for more options)
#device apm
# Add suspend/resume support for the i8254.
device pmtimer
# PCCARD (PCMCIA) support
# PCMCIA and cardbus bridge support
device cbb # cardbus (yenta) bridge
device pccard # PC Card (16-bit) bus
device cardbus # CardBus (32-bit) bus
# Serial (COM) ports
device sio # 8250, 16[45]50 based serial ports
# If you've got a "dumb" serial or parallel PCI card that is
# supported by the puc(4) glue driver, uncomment the following
# line to enable it (connects to the sio and/or ppc drivers):
#device puc
# PCI Ethernet NICs.
device de # DEC/Intel DC21x4x (``Tulip'')
device em # Intel PRO/1000 adapter Gigabit Ethernet Card
# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device miibus # MII bus support
device dc # DEC/Intel 21143 and various workalikes
device fxp # Intel EtherExpress PRO/100B (82557, 82558)
# Pseudo devices.
device loop # Network loopback
device random # Entropy device
device ether # Ethernet support
device ppp # Kernel PPP
device tun # Packet tunnel.
device pty # Pseudo-ttys (telnet etc)
device md # Memory "disks"
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
# Note that 'bpf' is required for DHCP.
device bpf # Berkeley packet filter
# USB support
device uhci # UHCI PCI->USB interface
device ohci # OHCI PCI->USB interface
device ehci # EHCI PCI->USB interface (USB 2.0)
device usb # USB Bus (required)
#device udbp # USB Double Bulk Pipe devices
device ugen # Generic
device uhid # "Human Interface Devices"
device ukbd # Keyboard
device ulpt # Printer
device umass # Disks/Mass storage - Requires scbus and da
device ums # Mouse
options GEOM_MIRROR
options GEOM_LABEL
options GEOM_ELI
device crypto
device cryptodev
device hifn
device tun
device tap
device pf
device pflog
options COMPAT_LINUX
options ALTQ
options ALTQ_CBQ # Class Bases Queueing
options ALTQ_RED # Random Early Detection
options ALTQ_RIO # RED In/Out
options ALTQ_HFSC # Hierarchical Packet Scheduler
options ALTQ_PRIQ # Priority Queueing
options ALTQ_NOPCC # Required for SMP build
device ichwd
device sk
device netgraph
options NETGRAPH_SOCKET
options NETGRAPH_ETHER
options NETGRAPH_PPPOE
options NETGRAPH_DEFLATE
device cpufreq
altq in pf.conf (these are the lines i've commented out - removed ALTQ -, and the reboots had gone away) :
#altq on $if_ppp hfsc bandwidth 512Kb queue { std, ssh, http, ack, vpn, stdack}
#queue std bandwidth 16% priority 0 qlimit 1024 hfsc (default realtime 32Kb upperlimit 412Kb)
#queue http bandwidth 16% priority 2 qlimit 512 hfsc (realtime 16Kb upperlimit 490Kb )
#queue ssh bandwidth 16% priority 5 qlimit 512 hfsc (realtime 32Kb upperlimit 490Kb )
#queue stdack bandwidth 16% priority 5 qlimit 1024 hfsc ( realtime 8Kb upperlimit 384Kb)
#queue vpn bandwidth 16% priority 6 qlimit 2048 hfsc ( realtime 16Kb upperlimit 512Kb)
#queue ack bandwidth 16% priority 7 qlimit 1024 hfsc ( realtime 8Kb upperlimit 512Kb)
#pass out quick on $if_ppp proto udp from any to any port {14567,14568} keep state queue(ssh, ack)
#pass out quick on $if_ppp proto tcp from any to port 22 flags S/SA keep state queue (ssh, ack)
#pass out quick on $if_ppp proto tcp from any to port {80,443} flags S/SA keep state queue (http, ack)
#pass out quick on $if_ppp proto tcp from any to 195.56.55.204 port 60080 flags S/SA keep state queue (http, ack)
#pass out quick on $if_ppp proto tcp from port 60150 to any keep state queue(std, stdack)
--
Üdvölettel,
Czuczy Gergely
Harmless Digital Bt
mailto: gergely.czuczy at harmless.hu
Tel: +36-30-9702963
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