Computer hangup : scsi_xfer pool exhausted!

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Computer hangup : scsi_xfer pool exhausted!

Sébastien Morand
Hi,

I have a computer hanging up every 4/5 days. It's no more accessible by
network and keyboard is not responding. The only message displayed in
console log is "scsi_xfer pool exhausted!" which is documented by :

/*
 * in this situation we should queue things waiting for an
 * xs and then give them xses when they were supposed be to
 * returned to the pool.
 */

Not sure what it means? How to prevent?

Thanks for any help,
Sebastien

dmesg :
OpenBSD 5.8 (GENERIC.MP) #1236: Sun Aug 16 02:31:04 MDT 2015
    [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 2031185920 (1937MB)
avail mem = 1965793280 (1874MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.6 @ 0xeb170 (45 entries)
bios0: vendor AMI version "7.15" date 02/14/2012
bios0: Hewlett-Packard HP Pro 3400 Series MT
acpi0 at bios0: rev 2
acpi0: sleep states S0 S1 S3 S4 S5
acpi0: tables DSDT FACP APIC SSDT MCFG SLIC HPET DBGP SSDT
acpi0: wakeup devices PS2K(S3) PS2M(S3) BR20(S3) PEX0(S4) PEX1(S4) PEX2(S4)
PEX3(S4) PEX4(S4) PEX5(S4) RTLK(S4) PEX6(S4) PEX7(S4) P0P1(S4) P0P2(S4)
P0P3(S4) P0P4(S4) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz, 3093.47 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,A
ES,XSAVE,AVX,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.1, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz, 3092.97 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,A
ES,XSAVE,AVX,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz, 3092.97 MHz
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,A
ES,XSAVE,AVX,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Core(TM) i5-2400 CPU @ 3.10GHz, 3092.97 MHz
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,A
ES,XSAVE,AVX,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 0, core 3, package 0
ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 20, 24 pins
acpimcfg0 at acpi0 addr 0xe0000000, bus 0-255
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (BR20)
acpiprt2 at acpi0: bus 2 (PEX0)
acpiprt3 at acpi0: bus 3 (PEX1)
acpiprt4 at acpi0: bus 4 (PEX2)
acpiprt5 at acpi0: bus 5 (PEX3)
acpiprt6 at acpi0: bus 6 (PEX4)
acpiprt7 at acpi0: bus 7 (PEX5)
acpiprt8 at acpi0: bus -1 (PEX6)
acpiprt9 at acpi0: bus -1 (PEX7)
acpiprt10 at acpi0: bus 1 (P0P1)
acpiprt11 at acpi0: bus -1 (P0P2)
acpiprt12 at acpi0: bus -1 (P0P3)
acpiprt13 at acpi0: bus -1 (P0P4)
acpicpu0 at acpi0 0xffff800000097b08 cnt:01 stk:00 package: 06
 0xffff800000096888 cnt:01 stk:00 integer: 6
 0xffff800000096e88 cnt:01 stk:00 integer: 0
 0xffff800000096f08 cnt:01 stk:00 integer: 0
 0xffff800000096908 cnt:01 stk:00 integer: fe
 0xffff800000097088 cnt:01 stk:00 integer: 1
 0xffff800000095188 cnt:01 stk:00 integer: 2

CSD r=0 d=0 c=fe n=1 i=2
: C3(350@104 mwait.3@0x20), C3(500@80 mwait.3@0x10), C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0 0xffff8000000a0d88 cnt:01 stk:00 package: 06
 0xffff8000000a0c08 cnt:01 stk:00 integer: 6
 0xffff800000096e88 cnt:01 stk:00 integer: 0
 0xffff8000000a0888 cnt:01 stk:00 integer: 1
 0xffff8000000a0908 cnt:01 stk:00 integer: fe
 0xffff8000000a0988 cnt:01 stk:00 integer: 1
 0xffff8000000a0a08 cnt:01 stk:00 integer: 2

CSD r=0 d=1 c=fe n=1 i=2
: C3(350@104 mwait.3@0x20), C3(500@80 mwait.3@0x10), C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0 0xffff8000000a0908 cnt:01 stk:00 package: 06
 0xffff8000000a0c08 cnt:01 stk:00 integer: 6
 0xffff800000097a88 cnt:01 stk:00 integer: 0
 0xffff8000000a0e08 cnt:01 stk:00 integer: 2
 0xffff8000000a0e88 cnt:01 stk:00 integer: fe
 0xffff8000000a0f08 cnt:01 stk:00 integer: 1
 0xffff8000000a0f88 cnt:01 stk:00 integer: 2

CSD r=0 d=2 c=fe n=1 i=2
: C3(350@104 mwait.3@0x20), C3(500@80 mwait.3@0x10), C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0 0xffff8000000a0e88 cnt:01 stk:00 package: 06
 0xffff8000000a0c08 cnt:01 stk:00 integer: 6
 0xffff8000000a0b88 cnt:01 stk:00 integer: 0
 0xffff8000000a0988 cnt:01 stk:00 integer: 3
 0xffff8000000a0a08 cnt:01 stk:00 integer: fe
 0xffff8000000a0d88 cnt:01 stk:00 integer: 1
 0xffff8000000a0a88 cnt:01 stk:00 integer: 2

CSD r=0 d=3 c=fe n=1 i=2
: C3(350@104 mwait.3@0x20), C3(500@80 mwait.3@0x10), C1(1000@1 mwait.1), PSS
acpibtn0 at acpi0: SLPB
acpibtn1 at acpi0: PWRB
cpu0: Enhanced SpeedStep 3093 MHz: speeds: 3101, 3100, 2900, 2700, 2500,
2300, 2100, 1900, 1700, 1600 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 2G Host" rev 0x09
ppb0 at pci0 dev 1 function 0 "Intel Core 2G PCIE" rev 0x09: msi
pci1 at ppb0 bus 1
vga1 at pci0 dev 2 function 0 "Intel HD Graphics 2000" rev 0x09
intagp at vga1 not configured
inteldrm0 at vga1
drm0 at inteldrm0
inteldrm0: 1600x900
wsdisplay0 at vga1 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
"Intel 6 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
ehci0 at pci0 dev 26 function 0 "Intel 6 Series USB" rev 0x05: apic 0 int 16
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
azalia0 at pci0 dev 27 function 0 "Intel 6 Series HD Audio" rev 0x05: msi
azalia0: codecs: Realtek ALC662
audio0 at azalia0
ppb1 at pci0 dev 28 function 0 "Intel 6 Series PCIE" rev 0xb5: msi
pci2 at ppb1 bus 2
ppb2 at pci0 dev 28 function 1 "Intel 6 Series PCIE" rev 0xb5: msi
pci3 at ppb2 bus 3
ppb3 at pci0 dev 28 function 2 "Intel 6 Series PCIE" rev 0xb5: msi
pci4 at ppb3 bus 4
ppb4 at pci0 dev 28 function 3 "Intel 6 Series PCIE" rev 0xb5: msi
pci5 at ppb4 bus 5
ppb5 at pci0 dev 28 function 4 "Intel 6 Series PCIE" rev 0xb5: msi
pci6 at ppb5 bus 6
ppb6 at pci0 dev 28 function 5 "Intel 6 Series PCIE" rev 0xb5: msi
pci7 at ppb6 bus 7
re0 at pci7 dev 0 function 0 "Realtek 8168" rev 0x06: RTL8168E/8111E
(0x2c00), msi, address e8:39:35:56:70:24
rgephy0 at re0 phy 7: RTL8169S/8110S/8211 PHY, rev. 4
ehci1 at pci0 dev 29 function 0 "Intel 6 Series USB" rev 0x05: apic 0 int 23
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 "Intel EHCI root hub" rev 2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel H61 LPC" rev 0x05
ahci0 at pci0 dev 31 function 2 "Intel 6 Series AHCI" rev 0x05: msi, AHCI
1.3
ahci0: port 0: 3.0Gb/s
ahci0: port 4: 3.0Gb/s
ahci0: port 5: 1.5Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, TOSHIBA DT01ACA3, MX6O> SCSI3 0/direct
fixed naa.5000039fe3c1a1c5
sd0: 2861588MB, 512 bytes/sector, 5860533168 sectors
sd1 at scsibus1 targ 4 lun 0: <ATA, WDC WD30EZRX-00S, 80.0> SCSI3 0/direct
fixed naa.50014ee2b5703302
sd1: 2861588MB, 512 bytes/sector, 5860533168 sectors
cd0 at scsibus1 targ 5 lun 0: <hp, DVD-RAM GH80N, RF03> ATAPI 5/cdrom
removable
ichiic0 at pci0 dev 31 function 3 "Intel 6 Series SMBus" rev 0x05: apic 0
int 18
iic0 at ichiic0
spdmem0 at iic0 addr 0x52: 2GB DDR3 SDRAM PC3-10600
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
it0 at isa0 port 0x2e/2: IT8772F rev 0, EC port 0xa30
uhub2 at uhub0 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
uhub3 at uhub1 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
softraid0: sd2 was not shutdown properly
sd2 at scsibus3 targ 1 lun 0: <OPENBSD, SR RAID 1, 005> SCSI2 0/direct fixed
sd2: 2861588MB, 512 bytes/sector, 5860532576 sectors
root on sd2a (b988d29bbe775bf9.a) swap on sd2b dump on sd2b
WARNING: / was not properly unmounted

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Re: Computer hangup : scsi_xfer pool exhausted!

Laurence Tratt
On Wed, Jan 27, 2016 at 10:31:28AM +0000, Sébastien Morand wrote:

Hello Sébastien,

> I have a computer hanging up every 4/5 days. It's no more accessible by
> network and keyboard is not responding. The only message displayed in
> console log is "scsi_xfer pool exhausted!" which is documented by :

I see this too, though less frequently, perhaps every couple of weeks or so.
There appears to be no clear pattern about when the machine suddenly locks
like this (X shuts down, I'm dumped in the console, and see the above
message; though the keyboard sort-of works, in the sense that key presses are
echoed back, no commands can be executed nor can I login; I can't power the
machine off in any nice way; instead I have to hard power the machine off),
which makes filing a bug report hard.


Laurie
--
Personal                                             http://tratt.net/laurie/
Software Development Team                                http://soft-dev.org/
   https://github.com/ltratt              http://twitter.com/laurencetratt


OpenBSD 5.9-beta (GENERIC.MP) #1864: Mon Jan 25 19:11:29 MST 2016
    [hidden email]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 8476475392 (8083MB)
avail mem = 8215384064 (7834MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xeb170 (52 entries)
bios0: vendor Intel Corp. version "BLH6710H.86A.0160.2012.1204.1156" date
12/04/2012
bios0: TranquilPC IXL
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC SSDT MCFG HPET
acpi0: wakeup devices PS2K(S3) PS2M(S3) UAR1(S3) P0P1(S4) P0P2(S4) P0P3(S4)
P0P4(S4) GBE_(S4) BR20(S3) EUSB(S3) USBE(S3) PEX0(S4) BR21(S4) PEX1(S4)
PEX2(S4) PEX3(S4) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM) i7-2600S CPU @ 2.80GHz, 2794.12 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,A
ES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu0: 256KB 64b/line 8-way L2 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 99MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.1, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i7-2600S CPU @ 2.80GHz, 2793.65 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,A
ES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu1: 256KB 64b/line 8-way L2 cache
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 1 (application processor)
cpu2: Intel(R) Core(TM) i7-2600S CPU @ 2.80GHz, 2793.65 MHz
cpu2:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,A
ES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu2: 256KB 64b/line 8-way L2 cache
cpu2: smt 1, core 0, package 0
cpu3 at mainbus0: apid 3 (application processor)
cpu3: Intel(R) Core(TM) i7-2600S CPU @ 2.80GHz, 2793.65 MHz
cpu3:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUS
H,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX
,SMX,EST,TM2,SSSE3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,POPCNT,DEADLINE,A
ES,XSAVE,AVX,NXE,LONG,LAHF,PERF,ITSC,SENSOR,ARAT
cpu3: 256KB 64b/line 8-way L2 cache
cpu3: smt 1, core 1, package 0
ioapic0 at mainbus0: apid 0 pa 0xfec00000, version 20, 24 pins
acpimcfg0 at acpi0 addr 0xf8000000, bus 0-63
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (P0P1)
acpiprt2 at acpi0: bus -1 (P0P2)
acpiprt3 at acpi0: bus -1 (P0P3)
acpiprt4 at acpi0: bus -1 (P0P4)
acpiprt5 at acpi0: bus 1 (PEX0)
acpiprt6 at acpi0: bus -1 (BR21)
acpiprt7 at acpi0: bus 2 (PEX1)
acpiprt8 at acpi0: bus -1 (PEX2)
acpiprt9 at acpi0: bus -1 (PEX3)
acpiprt10 at acpi0: bus -1 (PEX4)
acpiprt11 at acpi0: bus -1 (PEX5)
acpiprt12 at acpi0: bus -1 (PEX6)
acpiprt13 at acpi0: bus -1 (PEX7)
acpicpu0 at acpi0 0xffff8000000a4008 cnt:01 stk:00 package: 06
 0xffff8000000a3a88 cnt:01 stk:00 integer: 6
 0xffff80000009fc08 cnt:01 stk:00 integer: 0
 0xffff8000000a4d88 cnt:01 stk:00 integer: 0
 0xffff8000000a4d08 cnt:01 stk:00 integer: fe
 0xffff8000000a1508 cnt:01 stk:00 integer: 2
 0xffff8000000a1308 cnt:01 stk:00 integer: 2

CSD r=0 d=0 c=fe n=2 i=2
: C3(350@104 mwait.3@0x20), C2(500@80 mwait.3@0x10), C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0 0xffff80000009f188 cnt:01 stk:00 package: 06
 0xffff80000009f308 cnt:01 stk:00 integer: 6
 0xffff8000000a1a08 cnt:01 stk:00 integer: 0
 0xffff8000000a1e08 cnt:01 stk:00 integer: 0
 0xffff8000000a1488 cnt:01 stk:00 integer: fe
 0xffff80000009f388 cnt:01 stk:00 integer: 2
 0xffff8000000a4e08 cnt:01 stk:00 integer: 2

CSD r=0 d=0 c=fe n=2 i=2
: C3(350@104 mwait.3@0x20), C2(500@80 mwait.3@0x10), C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0 0xffff8000000a6108 cnt:01 stk:00 package: 06
 0xffff8000000a6b08 cnt:01 stk:00 integer: 6
 0xffff80000009be08 cnt:01 stk:00 integer: 0
 0xffff8000000a6c88 cnt:01 stk:00 integer: 1
 0xffff8000000a5c08 cnt:01 stk:00 integer: fe
 0xffff8000000a6b88 cnt:01 stk:00 integer: 2
 0xffff8000000a6c08 cnt:01 stk:00 integer: 2

CSD r=0 d=1 c=fe n=2 i=2
: C3(350@104 mwait.3@0x20), C2(500@80 mwait.3@0x10), C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0 0xffff8000000a7408 cnt:01 stk:00 package: 06
 0xffff8000000a7988 cnt:01 stk:00 integer: 6
 0xffff8000000a4f88 cnt:01 stk:00 integer: 0
 0xffff8000000a7b08 cnt:01 stk:00 integer: 1
 0xffff8000000a6a88 cnt:01 stk:00 integer: fe
 0xffff8000000a7a08 cnt:01 stk:00 integer: 2
 0xffff8000000a7a88 cnt:01 stk:00 integer: 2

CSD r=0 d=1 c=fe n=2 i=2
: C3(350@104 mwait.3@0x20), C2(500@80 mwait.3@0x10), C1(1000@1 mwait.1), PSS
acpibtn0 at acpi0: SLPB
acpibtn1 at acpi0: PWRB
cpu0: Enhanced SpeedStep 2794 MHz: speeds: 2801, 2800, 2700, 2600, 2500, 2400,
2300, 2200, 2100, 2000, 1900, 1800, 1700, 1600 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 2G Host" rev 0x09
inteldrm0 at pci0 dev 2 function 0 "Intel HD Graphics 2000" rev 0x09
drm0 at inteldrm0
inteldrm0: msi
inteldrm0: 1920x1200
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
"Intel 6 Series MEI" rev 0x04 at pci0 dev 22 function 0 not configured
em0 at pci0 dev 25 function 0 "Intel 82579V" rev 0x05: msi, address XXX
ehci0 at pci0 dev 26 function 0 "Intel 6 Series USB" rev 0x05: apic 0 int 16
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1
azalia0 at pci0 dev 27 function 0 "Intel 6 Series HD Audio" rev 0x05: msi
azalia0: codecs: Realtek/0x0892
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 6 Series PCIE" rev 0xb5: msi
pci1 at ppb0 bus 1
ppb1 at pci0 dev 28 function 1 "Intel 6 Series PCIE" rev 0xb5: msi
pci2 at ppb1 bus 2
xhci0 at pci2 dev 0 function 0 "NEC xHCI" rev 0x03: msi
usb1 at xhci0: USB revision 3.0
uhub1 at usb1 "NEC xHCI root hub" rev 3.00/1.00 addr 1
ehci1 at pci0 dev 29 function 0 "Intel 6 Series USB" rev 0x05: apic 0 int 23
usb2 at ehci1: USB revision 2.0
uhub2 at usb2 "Intel EHCI root hub" rev 2.00/1.00 addr 1
pcib0 at pci0 dev 31 function 0 "Intel H67 LPC" rev 0x05
ahci0 at pci0 dev 31 function 2 "Intel 6 Series AHCI" rev 0x05: msi, AHCI 1.3
ahci0: port 0: 6.0Gb/s
ahci0: port 1: 6.0Gb/s
ahci0: port 2: 1.5Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, WDC WD10EFRX-68J, 01.0> SCSI3 0/direct
fixed naa.50014ee0ae19ed04
sd0: 953869MB, 512 bytes/sector, 1953525168 sectors
sd1 at scsibus1 targ 1 lun 0: <ATA, OCZ-VERTEX3, 2.15> SCSI3 0/direct fixed
naa.5e83a97ea3ae65a3
sd1: 114473MB, 512 bytes/sector, 234441648 sectors, thin
cd0 at scsibus1 targ 2 lun 0: <Optiarc, DVD RW AD-7690H, 1.00> ATAPI 5/cdrom
removable
ichiic0 at pci0 dev 31 function 3 "Intel 6 Series SMBus" rev 0x05: apic 0 int
18
iic0 at ichiic0
"eeprom" at iic0 addr 0x50 not configured
spdmem0 at iic0 addr 0x52: 4GB DDR3 SDRAM PC3-10600
isa0 at pcib0
isadma0 at isa0
pckbc0 at isa0 port 0x60/5 irq 1 irq 12
pckbd0 at pckbc0 (kbd slot)
wskbd0 at pckbd0: console keyboard, using wsdisplay0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
uhub3 at uhub0 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
uhub4 at uhub3 port 2 "ATEN International product 0x7000" rev 1.10/1.00 addr
3
uhidev0 at uhub4 port 1 configuration 1 interface 0 "MALTRON USB Multimedia
Keyboard" rev 1.10/1.22 addr 4
uhidev0: iclass 3/1
ukbd0 at uhidev0: 8 variable keys, 6 key codes, country code 13
wskbd1 at ukbd0 mux 1
wskbd1: connecting to wsdisplay0
uhidev1 at uhub4 port 1 configuration 1 interface 1 "MALTRON USB Multimedia
Keyboard" rev 1.10/1.22 addr 4
uhidev1: iclass 3/0, 3 report ids
uhid0 at uhidev1 reportid 2: input=1, output=0, feature=0
uhid1 at uhidev1 reportid 3: input=2, output=0, feature=0
uhidev2 at uhub4 port 4 configuration 1 interface 0 "Logitech Trackball" rev
1.10/2.20 addr 5
uhidev2: iclass 3/1
ums0 at uhidev2: 3 buttons, Z dir
wsmouse0 at ums0 mux 0
umass0 at uhub3 port 3 configuration 1 interface 0 "Generic USB2.0-CRW" rev
2.00/51.95 addr 6
umass0: using SCSI over Bulk-Only
scsibus2 at umass0: 2 targets, initiator 0
sd2 at scsibus2 targ 1 lun 0: <Generic-, Compact Flash, 1.00> SCSI0 0/direct
removable
sd3 at scsibus2 targ 1 lun 1: <Generic-, SM/xD-Picture, 1.00> SCSI0 0/direct
removable
sd4 at scsibus2 targ 1 lun 2: <Generic-, SD/MMC, 1.00> SCSI0 0/direct
removable
sd5 at scsibus2 targ 1 lun 3: <Generic-, MS/MS-Pro, 1.00> SCSI0 0/direct
removable
ugen0 at uhub3 port 4 "COMPRO VideoMate IR20" rev 2.00/89.ab addr 7
uhub5 at uhub2 port 1 "Intel Rate Matching Hub" rev 2.00/0.00 addr 2
run0 at uhub5 port 8 configuration 1 interface 0 "Ralink 802.11 n WLAN" rev
2.00/1.01 addr 3
run0: MAC/BBP RT3071 (rev 0x021C), RF RT3022 (MIMO 2T2R), address XXX
vscsi0 at root
scsibus3 at vscsi0: 256 targets
softraid0 at root
scsibus4 at softraid0: 256 targets
root on sd1a (e97e0dd15b379333.a) swap on sd1b dump on sd1b

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Re: Computer hangup : scsi_xfer pool exhausted!

Joris Vanhecke
I'm experiencing the same thing.
OpenBSD5.8-STABLE on vmware.

The message is repeatedly spammed to the console.