What output to you get from 'netstat -m'?
I might get yelled at for this as you mentioned people seem to hate
custom kernels.
But i've had good luck with the following options, I'm not sure which
are still relevant, but they help.
option NKMEMPAGES_MAX=81920
option NKMEMPAGES=81920
option MAX_KMAPENT=8192
I've always received that error you described on any high load openbsd
box. Even with the above changes,
you will eventually get the same error as your new limits are reached.
If you come up with any better solutions, please let me know, i'd be
very interested to hear them.
-Darrian
On Thu, May 15, 2008 at 10:29 AM, Kevin <[EMAIL PROTECTED]> wrote:
> All,
>
> I'm getting quite a lot of these errors in /var/log/messages and can't
> seem to find an appropriate fix in the archives:
>
> May 14 21:05:54 svr02 /bsd: uvm_mapent_alloc: out of static map entries
> May 14 21:57:47 svr02 /bsd: uvm_mapent_alloc: out of static map entries
> May 14 23:00:05 svr02 /bsd: uvm_mapent_alloc: out of static map entries
> May 15 07:27:53 svr02 /bsd: uvm_mapent_alloc: out of static map entries
> May 15 07:39:59 svr02 /bsd: uvm_mapent_alloc: out of static map entries
>
> N.B. This machine serves mirror content for various F/OSS projects in
> addition to standard www content, so it quite often has >350 users
> concurrently connected downloading mirrored content (in addition to
> visitors who're actually visiting the site).
>
>
> These messages correspond almost exactly with two things:
>
> 1.) the sites having quite a few visitors
> 2.) the sites becoming unavailable. In most cases, it fixes itself
> when the freeloaders (errr downloaders ;-) complete their file
> transfers.
>
>
> Possibly worth noting:
>
> 1.) We've had to crank various settings in Apache to keep serving
> traffic, as the stock settings were too low: we were reaching the max
> daemons for Apache so new visitors were just out-of-luck.
> 2.) When the system begins to knuckle under load, I'm taking a
> snapshot of various bits like the following.
>
> Here's one example:
> load averages: 0.45, 0.47, 0.40 07:40:00
> 247 processes: 245 idle, 2 on processor
> CPU0 states: 7.2% user, 0.0% nice, 2.6% system, 2.2% interrupt, 88.0% idle
> CPU1 states: 3.6% user, 0.0% nice, 0.3% system, 1.9% interrupt, 94.3% idle
> Memory: Real: 339M/737M act/tot Free: 1272M Swap: 0K/518M used/tot
>
>
> From the archives this seems to be something for which a fix *used* to
> be cranking up the following:
>
> maxusers 64
> option BUFCACHEPERCENT=25
> option MULTIPROCESSOR
> option MAX_KMAPENT=4000
>
>
> This hardly seems a real fix though--especially given everyone's
> hatred of knobs, custom kernels, and such though I'm certainly open to
> it if we can continue to keep the sites--and the mirrors--up.
>
> I think I've mentioned everything noteworthy though cluestick
> applications are welcome.
>
> Thanks,
> Kevin
>
>
>
>
> Here's the dmesg for any interested parties:
>
>
> OpenBSD 4.3 (GENERIC.MP) #2: Fri Apr 11 09:00:02 PDT 2008
> [EMAIL PROTECTED]:/usr/src/sys/arch/i386/compile/GENERIC.MP
> cpu0: Intel(R) Pentium(R) III CPU family 1266MHz ("GenuineIntel"
> 686-class) 1.27 GHz
> cpu0:
> FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE
> real mem = 2146992128 (2047MB)
> avail mem = 2067959808 (1972MB)
> mainbus0 at root
> bios0 at mainbus0: AT/286+ BIOS, date 01/25/02, BIOS32 rev. 0 @
> 0xffe90, SMBIOS rev. 2.3 @ 0xfae20 (49 entries)
> bios0: vendor Dell Computer Corporation version "A06" date 01/25/2002
> bios0: Dell Computer Corporation PowerEdge 2550
> acpi0 at bios0: rev 0
> acpi0: tables DSDT FACP APIC SPCR
> acpi0: wakeup devices PCI1(S5) PCI2(S5) PCI0(S5)
> acpitimer0 at acpi0: 3579545 Hz, 32 bits
> acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
> cpu0 at mainbus0: apid 1 (boot processor)
> cpu0: apic clock running at 132MHz
> cpu1 at mainbus0: apid 0 (application processor)
> cpu1: Intel(R) Pentium(R) III CPU family 1266MHz ("GenuineIntel"
> 686-class) 1.27 GHz
> cpu1:
> FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR,SSE
> ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 11, 16 pins
> ioapic0: misconfigured as apic 0, remapped to apid 2
> ioapic1 at mainbus0: apid 3 pa 0xfec01000, version 11, 16 pins
> ioapic1: misconfigured as apic 0, remapped to apid 3
> acpiprt0 at acpi0: bus 0 (PCI1)
> acpiprt1 at acpi0: bus 1 (PCI2)
> acpiprt2 at acpi0: bus 2 (PCI0)
> acpiprt3 at acpi0: bus 3 (I960)
> acpicpu0 at acpi0
> acpicpu1 at acpi0
> bios0: ROM list: 0xc0000/0x8000 0xcc000/0x8000 0xec000/0x4000!
> esm0 at mainbus0
> esm0: PowerEdge 2550 Embedded Server Management 5.50
> esm0: Primary System Backplane 1.30
> pci0 at mainbus0 bus 0: configuration mode 1 (no bios)
> pchb0 at pci0 dev 0 function 0 "ServerWorks CNB20HE Host" rev 0x23
> pchb1 at pci0 dev 0 function 1 "ServerWorks CNB20HE Host" rev 0x01
> pci1 at pchb1 bus 2
> ppb0 at pci1 dev 2 function 0 "Intel i960 RM PCI-PCI" rev 0x02
> pci2 at ppb0 bus 3
> ahc0 at pci2 dev 4 function 0 "Adaptec AIC-7899 U160" rev 0x01: apic 3
> int 15 (irq 11)
> scsibus0 at ahc0: 16 targets
> ahc1 at pci2 dev 4 function 1 "Adaptec AIC-7899 U160" rev 0x01: apic 3
> int 14 (irq 10)
> scsibus1 at ahc1: 16 targets
> fxp0 at pci1 dev 4 function 0 "Intel 8255x" rev 0x08, i82559: apic 3
> int 0 (irq 5), address 00:06:5b:3b:61:27
> inphy0 at fxp0 phy 1: i82555 10/100 PHY, rev. 4
> pchb2 at pci0 dev 0 function 2 "ServerWorks CNB20HE Host" rev 0x01
> pchb3 at pci0 dev 0 function 3 "ServerWorks CNB20HE Host" rev 0x01
> pci3 at pchb3 bus 1
> bge0 at pci3 dev 8 function 0 "Broadcom BCM5700" rev 0x12, BCM5700 B2
> (0x7102): apic 3 int 1 (irq 10), address 00:06:5b:3b:61:28
> brgphy0 at bge0 phy 1: BCM5401 10/100/1000baseT PHY, rev. 3
> gdt0 at pci0 dev 4 function 0 "Vortex GDT6x18RD" rev 0x00: apic 3 int
> 6 (irq 11) dpmem c8000 2-bus 2 cache devices
> gdt0: ver 11a, cache on, strategy 2, writeback on, blksz 32
> gdt0: raw feat 1 cache feat 101
> scsibus2 at gdt0: 35 targets
> sd0 at scsibus2 targ 0 lun 0: <ICP, Host drive #00, > SCSI2 0/direct fixed
> sd0: 35000MB, 4462 cyl, 255 head, 63 sec, 512 bytes/sec, 71682030 sec total
> sd1 at scsibus2 targ 1 lun 0: <ICP, Host drive #01, > SCSI2 0/direct fixed
> sd1: 140200MB, 17873 cyl, 255 head, 63 sec, 512 bytes/sec, 287129745 sec total
> scsibus3 at gdt0: 16 targets
> scsibus4 at gdt0: 16 targets
> vga1 at pci0 dev 14 function 0 "ATI Rage XL" rev 0x27
> wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation)
> wsdisplay0: screen 1-5 added (80x25, vt100 emulation)
> piixpm0 at pci0 dev 15 function 0 "ServerWorks OSB4" rev 0x50: SMBus disabled
> pciide0 at pci0 dev 15 function 1 "ServerWorks OSB4 IDE" rev 0x00: DMA
> atapiscsi0 at pciide0 channel 0 drive 0
> scsibus5 at atapiscsi0: 2 targets
> cd0 at scsibus5 targ 0 lun 0: <TEAC, CD-224E, 3.7D> SCSI0 5/cdrom removable
> cd0(pciide0:0:0): using PIO mode 4, DMA mode 2, Ultra-DMA mode 2
> isa0 at mainbus0
> isadma0 at isa0
> pckbc0 at isa0 port 0x60/5
> pckbd0 at pckbc0 (kbd slot)
> pckbc0: using irq 1 for kbd slot
> wskbd0 at pckbd0: console keyboard, using wsdisplay0
> pcppi0 at isa0 port 0x61
> midi0 at pcppi0: <PC speaker>
> spkr0 at pcppi0
> lpt0 at isa0 port 0x378/4 irq 7
> npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16
> pccom0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
> pccom1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
> fdc0 at isa0 port 0x3f0/6 irq 6 drq 2
> fd0 at fdc0 drive 0: 1.44MB 80 cyl, 2 head, 18 sec
> mtrr: Pentium Pro MTRR support
> softraid0 at root
> root on sd0a swap on sd0b dump on sd0b
