Hi all. I experiment qemu problems while playing with emulators/virtual machines ...
When I try to create any virtual machines with x86_64 or i 386 hardware and more than 256Mo ram that fail. Qemu returns "Cannot allocate memory". I tryied to modify login.conf & ulimits values, but this still fail. I randomly ... YES RANDOMLY .... discover ram values are limited to exact values between : 256 & 512Mo ram allocable ...no more ... no less... on a test setup with the laptop. How I discoverd that ? like this : $ M=2048 $ while : ; do qeum-system-i386 -m $M ; M=$(( $M - 1 )) ; echo $M ; done ; unset M So I let this run until VM starts, then I look the last $M value. Qemu documentation says ram limit is 2047Mo for both i386 & x86_64 Anyway.... Qemu with ram values between 512 & 846 are just working very fine ... Can check my actual setup in attached file. On this machine Qemu machines ram is limited to 256Mo (with no modifications of ulimits neither in login.conf I don't understand where is the problem. This doesn't seem to cause any hangs, bugs or warning in "system" log files... Any help or Ideas about that ? FYI : any other hardware emulated seems to work with its own maximum supported ram for example : $ qemu-system-sparc -machine SS-20 -smp 4 -m 768 just works fine on same machine... Max values I have tried in login.conf were : default:\ :path=/usr/bin /bin /usr/sbin /sbin /usr/X11R6/bin /usr/local/bin /usr/local/sbin:\ :umask=022:\ :datasize-max=2048M:\ :datasize-cur=2024M:\ :maxproc-max=512:\ :maxproc-cur=256:\ :vmemoryuse=1024:\ :openfiles-cur=1024:\ :stacksize-cur=8M:\ :localcipher=blowfish,6:\ :ypcipher=old:\ :tc=auth-defaults:\ :tc=auth-ftp-defaults: Cordialement Francois Pussault 10 chemin de négo saoumos apt 202 - bat 2 31300 Toulouse +33 6 17 230 820  +33 5 34 365 269 fpussa...@contactoffice.fr OpenBSD 5.5 (GENERIC.MP) #315: Wed Mar 5 09:37:46 MST 2014 dera...@amd64.openbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC.MP real mem = 17161342976 (16366MB) avail mem = 16695902208 (15922MB) mainbus0 at root bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xee000 (71 entries) bios0: vendor HP version "P56" date 11/13/2007 bios0: HP ProLiant DL380 G5 acpi0 at bios0: rev 2 acpi0: sleep states S0 S4 S5 acpi0: tables DSDT FACP SPCR MCFG HPET SPMI ERST APIC FFFF BERT HEST acpi0: wakeup devices acpitimer0 at acpi0: 3579545 Hz, 24 bits acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255 acpihpet0 at acpi0: 14318179 Hz acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat cpu0 at mainbus0: apid 0 (boot processor) cpu0: Intel(R) Xeon(R) CPU E5345 @ 2.33GHz, 2333.67 MHz cpu0: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA,LONG,LAHF,PERF cpu0: 4MB 64b/line 16-way L2 cache cpu0: smt 0, core 0, package 0 mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges cpu0: apic clock running at 333MHz cpu0: mwait min=64, max=64, C-substates=0.2.2.2.0, IBE cpu1 at mainbus0: apid 4 (application processor) cpu1: Intel(R) Xeon(R) CPU E5345 @ 2.33GHz, 2332.51 MHz cpu1: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA,LONG,LAHF,PERF cpu1: 4MB 64b/line 16-way L2 cache cpu1: smt 0, core 0, package 1 cpu2 at mainbus0: apid 2 (application processor) cpu2: Intel(R) Xeon(R) CPU E5345 @ 2.33GHz, 2332.51 MHz cpu2: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA,LONG,LAHF,PERF cpu2: 4MB 64b/line 16-way L2 cache cpu2: smt 0, core 2, package 0 cpu3 at mainbus0: apid 6 (application processor) cpu3: Intel(R) Xeon(R) CPU E5345 @ 2.33GHz, 2332.51 MHz cpu3: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA,LONG,LAHF,PERF cpu3: 4MB 64b/line 16-way L2 cache cpu3: smt 0, core 2, package 1 cpu4 at mainbus0: apid 1 (application processor) cpu4: Intel(R) Xeon(R) CPU E5345 @ 2.33GHz, 2332.51 MHz cpu4: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA,LONG,LAHF,PERF cpu4: 4MB 64b/line 16-way L2 cache cpu4: smt 0, core 1, package 0 cpu5 at mainbus0: apid 5 (application processor) cpu5: Intel(R) Xeon(R) CPU E5345 @ 2.33GHz, 2332.51 MHz cpu5: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA,LONG,LAHF,PERF cpu5: 4MB 64b/line 16-way L2 cache cpu5: smt 0, core 1, package 1 cpu6 at mainbus0: apid 3 (application processor) cpu6: Intel(R) Xeon(R) CPU E5345 @ 2.33GHz, 2332.51 MHz cpu6: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA,LONG,LAHF,PERF cpu6: 4MB 64b/line 16-way L2 cache cpu6: smt 0, core 3, package 0 cpu7 at mainbus0: apid 7 (application processor) cpu7: Intel(R) Xeon(R) CPU E5345 @ 2.33GHz, 2332.51 MHz cpu7: FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,DTES64,MWAIT,DS-CPL,VMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,DCA,LONG,LAHF,PERF cpu7: 4MB 64b/line 16-way L2 cache cpu7: smt 0, core 3, package 1 ioapic0 at mainbus0: apid 8 pa 0xfec00000, version 20, 24 pins acpimadt0: unknown apic structure type ff acpiprt0 at acpi0: bus 1 (IP2P) acpiprt1 at acpi0: bus 2 (IPTA) acpiprt2 at acpi0: bus 4 (IPTB) acpiprt3 at acpi0: bus 11 (IPE1) acpiprt4 at acpi0: bus 14 (IPE2) acpiprt5 at acpi0: bus 17 (IPE3) acpiprt6 at acpi0: bus 10 (IPE4) acpiprt7 at acpi0: bus 9 (PT02) acpiprt8 at acpi0: bus 6 (PT03) acpiprt9 at acpi0: bus 19 (PT04) acpiprt10 at acpi0: bus 23 (PT06) acpiprt11 at acpi0: bus 0 (PCI0) acpicpu0 at acpi0 acpicpu1 at acpi0 acpicpu2 at acpi0 acpicpu3 at acpi0 acpicpu4 at acpi0 acpicpu5 at acpi0 acpicpu6 at acpi0 acpicpu7 at acpi0 acpitz0 at acpi0: critical temperature is 31 degC ipmi at mainbus0 not configured pci0 at mainbus0 bus 0 pchb0 at pci0 dev 0 function 0 "Intel 5000P Host" rev 0xb1 ppb0 at pci0 dev 2 function 0 "Intel 5000 PCIE" rev 0xb1 pci1 at ppb0 bus 9 ppb1 at pci1 dev 0 function 0 "Intel 6321ESB PCIE" rev 0x01 pci2 at ppb1 bus 10 ppb2 at pci2 dev 0 function 0 "Intel 6321ESB PCIE" rev 0x01 pci3 at ppb2 bus 11 ppb3 at pci2 dev 1 function 0 "Intel 6321ESB PCIE" rev 0x01 pci4 at ppb3 bus 14 ppb4 at pci2 dev 2 function 0 "Intel 6321ESB PCIE" rev 0x01 pci5 at ppb4 bus 17 ppb5 at pci1 dev 0 function 3 "Intel 6321ESB PCIE-PCIX" rev 0x01 pci6 at ppb5 bus 18 ppb6 at pci0 dev 3 function 0 "Intel 5000 PCIE" rev 0xb1 pci7 at ppb6 bus 6 ciss0 at pci7 dev 0 function 0 "Hewlett-Packard Smart Array" rev 0x03: apic 8 int 18 ciss0: 2 LDs, HW rev 3, FW 4.12/4.12, 64bit fifo scsibus0 at ciss0: 2 targets sd0 at scsibus0 targ 0 lun 0: <HP, LOGICAL VOLUME, 4.12> SCSI3 0/direct fixed sd0: 69973MB, 512 bytes/sector, 143305920 sectors sd1 at scsibus0 targ 1 lun 0: <HP, LOGICAL VOLUME, 4.12> SCSI3 0/direct fixed sd1: 279900MB, 512 bytes/sector, 573235602 sectors ppb7 at pci0 dev 4 function 0 "Intel 5000 PCIE x8" rev 0xb1 pci8 at ppb7 bus 19 ppb8 at pci0 dev 5 function 0 "Intel 5000 PCIE" rev 0xb1 pci9 at ppb8 bus 22 ppb9 at pci0 dev 6 function 0 "Intel 5000 PCIE x8" rev 0xb1 pci10 at ppb9 bus 23 ppb10 at pci0 dev 7 function 0 "Intel 5000 PCIE" rev 0xb1 pci11 at ppb10 bus 26 pchb1 at pci0 dev 16 function 0 "Intel 5000 Error Reporting" rev 0xb1 pchb2 at pci0 dev 16 function 1 "Intel 5000 Error Reporting" rev 0xb1 pchb3 at pci0 dev 16 function 2 "Intel 5000 Error Reporting" rev 0xb1 pchb4 at pci0 dev 17 function 0 "Intel 5000 Reserved" rev 0xb1 pchb5 at pci0 dev 19 function 0 "Intel 5000 Reserved" rev 0xb1 pchb6 at pci0 dev 21 function 0 "Intel 5000 FBD" rev 0xb1 pchb7 at pci0 dev 22 function 0 "Intel 5000 FBD" rev 0xb1 ppb11 at pci0 dev 28 function 0 "Intel 6321ESB PCIE" rev 0x09 pci12 at ppb11 bus 2 ppb12 at pci12 dev 0 function 0 "ServerWorks PCIE-PCIX" rev 0xc3 pci13 at ppb12 bus 3 bnx0 at pci13 dev 0 function 0 "Broadcom BCM5708" rev 0x12: apic 8 int 16 ppb13 at pci0 dev 28 function 1 "Intel 6321ESB PCIE" rev 0x09 pci14 at ppb13 bus 4 ppb14 at pci14 dev 0 function 0 "ServerWorks PCIE-PCIX" rev 0xc3 pci15 at ppb14 bus 5 bnx1 at pci15 dev 0 function 0 "Broadcom BCM5708" rev 0x12: apic 8 int 17 uhci0 at pci0 dev 29 function 0 "Intel 6321ESB USB" rev 0x09: apic 8 int 16 uhci1 at pci0 dev 29 function 1 "Intel 6321ESB USB" rev 0x09: apic 8 int 17 uhci2 at pci0 dev 29 function 2 "Intel 6321ESB USB" rev 0x09: apic 8 int 18 uhci3 at pci0 dev 29 function 3 "Intel 6321ESB USB" rev 0x09: apic 8 int 19 ehci0 at pci0 dev 29 function 7 "Intel 6321ESB USB" rev 0x09: apic 8 int 16 usb0 at ehci0: USB revision 2.0 uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 ppb15 at pci0 dev 30 function 0 "Intel 82801BA Hub-to-PCI" rev 0xd9 pci16 at ppb15 bus 1 radeondrm0 at pci16 dev 3 function 0 "ATI ES1000" rev 0x02 drm0 at radeondrm0 radeondrm0: apic 8 int 23 "Compaq iLO" rev 0x03 at pci16 dev 4 function 0 not configured "Compaq iLO" rev 0x03 at pci16 dev 4 function 2 not configured uhci4 at pci16 dev 4 function 4 "Hewlett-Packard USB" rev 0x00: apic 8 int 22 "Hewlett-Packard IPMI" rev 0x00 at pci16 dev 4 function 6 not configured usb1 at uhci4: USB revision 1.0 uhub1 at usb1 "Hewlett-Packard UHCI root hub" rev 1.00/1.00 addr 1 pcib0 at pci0 dev 31 function 0 "Intel 6321ESB LPC" rev 0x09 pciide0 at pci0 dev 31 function 1 "Intel 6321ESB IDE" rev 0x09: DMA, channel 0 configured to compatibility, channel 1 configured to compatibility atapiscsi0 at pciide0 channel 0 drive 0 scsibus1 at atapiscsi0: 2 targets cd0 at scsibus1 targ 0 lun 0: <HL-DT-ST, RW/DVD GCC-C10N, 2.00> ATAPI 5/cdrom removable cd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 2 pciide0: channel 1 disabled (no drives) usb2 at uhci0: USB revision 1.0 uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb3 at uhci1: USB revision 1.0 uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb4 at uhci2: USB revision 1.0 uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1 usb5 at uhci3: USB revision 1.0 uhub5 at usb5 "Intel UHCI root hub" rev 1.00/1.00 addr 1 isa0 at pcib0 isadma0 at isa0 com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo com1: probed fifo depth: 0 bytes pckbc0 at isa0 port 0x60/5 pckbd0 at pckbc0 (kbd slot) pckbc0: using irq 1 for kbd slot wskbd0 at pckbd0: console keyboard pcppi0 at isa0 port 0x61 spkr0 at pcppi0 uhidev0 at uhub1 port 1 configuration 1 interface 0 "HP Virtual Keyboard" rev 1.10/0.02 addr 2 uhidev0: iclass 3/1 ukbd0 at uhidev0: 8 variable keys, 6 key codes, country code 33 wskbd1 at ukbd0 mux 1 uhidev1 at uhub1 port 1 configuration 1 interface 1 "HP Virtual Keyboard" rev 1.10/0.02 addr 2 uhidev1: iclass 3/1 ums0 at uhidev1: 3 buttons wsmouse0 at ums0 mux 0 uhub6 at uhub1 port 2 "HP Virtual Hub" rev 1.10/0.01 addr 3 uaudio0 at uhub4 port 2 configuration 1 interface 0 "C-Media Electronics Inc. USB PnP Sound Device" rev 1.10/1.00 addr 2 uaudio0: audio rev 1.00, 8 mixer controls audio0 at uaudio0 uhidev2 at uhub4 port 2 configuration 1 interface 3 "C-Media Electronics Inc. USB PnP Sound Device" rev 1.10/1.00 addr 2 uhidev2: iclass 3/0 uhid0 at uhidev2: input=4, output=4, feature=0 uhidev3 at uhub5 port 1 configuration 1 interface 0 "Logitech USB Optical Mouse" rev 2.00/63.00 addr 2 uhidev3: iclass 3/1 ums1 at uhidev3: 3 buttons, Z dir wsmouse1 at ums1 mux 0 uhidev4 at uhub5 port 2 configuration 1 interface 0 "Dell Dell USB Keyboard" rev 1.10/3.06 addr 3 uhidev4: iclass 3/1 ukbd1 at uhidev4: 8 variable keys, 6 key codes wskbd2 at ukbd1 mux 1 vscsi0 at root scsibus2 at vscsi0: 256 targets softraid0 at root scsibus3 at softraid0: 256 targets root on sd0a (4ca58795d353d8f6.a) swap on sd0b dump on sd0b bnx0: address 00:1e:0b:71:3a:58 brgphy0 at bnx0 phy 1: BCM5708C 10/100/1000baseT PHY, rev. 6 bnx1: address 00:1e:0b:71:3a:56 brgphy1 at bnx1 phy 1: BCM5708C 10/100/1000baseT PHY, rev. 6 drm: initializing kernel modesetting (RV100 0x1002:0x515E 0x103C:0x31FB). radeondrm0: VRAM: 128M 0x00000000D8000000 - 0x00000000DFFFFFFF (32M used) radeondrm0: GTT: 512M 0x00000000B8000000 - 0x00000000D7FFFFFF drm: PCI GART of 512M enabled (table at 0x0000000002071000). drm: No TV DAC info found in BIOS radeondrm0: 1024x768 wsdisplay0 at radeondrm0 mux 1: console (std, vt100 emulation), using wskbd0 wskbd1: connecting to wsdisplay0 wskbd2: connecting to wsdisplay0 wsdisplay0: screen 1-5 added (std, vt100 emulation) hw.machine=amd64 hw.model=Intel(R) Xeon(R) CPU E5345 @ 2.33GHz hw.ncpu=8 hw.byteorder=1234 hw.pagesize=4096 hw.disknames=sd0:4ca58795d353d8f6,sd1:5dece4c226bd5f4a,cd0: hw.diskcount=3 hw.sensors.cpu0.temp0=42.00 degC hw.sensors.cpu1.temp0=42.00 degC hw.sensors.cpu2.temp0=42.00 degC hw.sensors.cpu3.temp0=42.00 degC hw.sensors.cpu4.temp0=42.00 degC hw.sensors.cpu5.temp0=42.00 degC hw.sensors.cpu6.temp0=42.00 degC hw.sensors.cpu7.temp0=42.00 degC hw.sensors.acpitz0.temp0=8.30 degC (zone temperature) hw.cpuspeed=2333 hw.setperf=100 hw.vendor=HP hw.product=ProLiant DL380 G5 hw.serialno=CZC8032H69 hw.uuid=34333335-3234-435a-4338-303332483639 hw.physmem=17161342976 hw.usermem=17161302016 hw.ncpufound=8 hw.allowpowerdown=1 Filesystem Size Used Avail Capacity Mounted on /dev/sd0a 984M 60.9M 874M 7% / /dev/sd0d 5.8G 22.0K 5.5G 0% /tmp /dev/sd0f 29.5G 8.9G 19.1G 32% /usr /dev/sd0e 15.7G 22.0M 14.9G 0% /var /dev/sd1a 271G 34.7G 223G 13% /home # $OpenBSD: login.conf.in,v 1.6 2012/02/06 21:25:13 sobrado Exp $ # # Sample login.conf file. See login.conf(5) for details. # # # Standard authentication styles: # # krb5-or-pwd First try Kerberos V password, then local password file # passwd Use only the local password file # krb5 Use only the Kerberos V password # chpass Do not authenticate, but change users password (change # the YP password if the user has one, else change the # local password) # lchpass Do not login; change user's local password instead # radius Use radius authentication # reject Use rejected authentication # skey Use S/Key authentication # activ ActivCard X9.9 token authentication # crypto CRYPTOCard X9.9 token authentication # snk Digital Pathways SecureNet Key authentication # tis TIS Firewall Toolkit authentication # token Generic X9.9 token authentication # yubikey YubiKey authentication # # Default allowed authentication styles auth-defaults:auth=passwd,skey: # Default allowed authentication styles for authentication type ftp auth-ftp-defaults:auth-ftp=passwd: # # The default values # To alter the default authentication types change the line: # :tc=auth-defaults:\ # to be read something like: (enables passwd, "myauth", and activ) # :auth=passwd,myauth,activ:\ # Any value changed in the daemon class should be reset in default # class. # default:\ :path=/usr/bin /bin /usr/sbin /sbin /usr/X11R6/bin /usr/local/bin /usr/local/sbin:\ :umask=022:\ :datasize-max=512M:\ :datasize-cur=512M:\ :maxproc-max=256:\ :maxproc-cur=128:\ :openfiles-cur=512:\ :stacksize-cur=4M:\ :localcipher=blowfish,6:\ :ypcipher=old:\ :tc=auth-defaults:\ :tc=auth-ftp-defaults: # # Settings used by /etc/rc and root # This must be set properly for daemons started as root by inetd as well. # Be sure reset these values back to system defaults in the default class! # daemon:\ :ignorenologin:\ :datasize=infinity:\ :maxproc=infinity:\ :openfiles-cur=128:\ :stacksize-cur=8M:\ :localcipher=blowfish,8:\ :tc=default: # # Staff have fewer restrictions and can login even when nologins are set. # staff:\ :datasize-cur=512M:\ :datasize-max=infinity:\ :maxproc-max=512:\ :maxproc-cur=128:\ :ignorenologin:\ :requirehome@:\ :tc=default: # # Authpf accounts get a special motd and shell # authpf:\ :welcome=/etc/motd.authpf:\ :shell=/usr/sbin/authpf:\ :tc=default: # # Override resource limits for certain daemons started by rc.d(8) # bgpd:\ :openfiles-cur=512:\ :tc=daemon: