Hi all,
I met an interesting problem while deleting files that makes me curious.
After deleting two files for preparing an update in a flashrd-setup
(openbsd.vnd + bsd) I would have expected the ~1,2 GB beeing freed.
The files are gone - so far so good, but the disc space is not free.
I know this behaviour, if a process is still sitting on the file, but
with fstat I can't see any process or open file handler.
Now I'm just curious if I miss something and probably I just need a bit
more coffee ;-)
# df -h
Filesystem Size Used Avail Capacity Mounted on
/dev/rd0a 1.8M 1.4M 419K 77% /
/dev/sd0a 1.8G 872M 878M 50% /flash
/dev/vnd0e 15.4M 5.0M 10.3M 32% /etc
/dev/vnd0f 42.1M 14.6M 27.0M 35% /sbin
/dev/vnd0a 48.3M 6.0K 47.8M 0% /root
/dev/vnd0d 16.4M 5.8M 10.4M 36% /bin
/dev/vnd0g 1.1G 735M 347M 68% /usr
tmpfs 64.0M 61.5M 2.5M 96% /var
tmpfs 50.0M 4.0K 50.0M 0% /home
tmpfs 16.0M 4.0K 16.0M 0% /tmp
/dev/sd0d 10.9G 616M 9.7G 6% /data
#
# du -hs /flash/
68.9M /flash/
#
# mount
/dev/rd0a on / type ffs (local)
/dev/sd0a on /flash type ffs (local, noatime, nodev, nosuid)
/dev/vnd0e on /etc type ffs (local, noatime, nodev, nosuid, read-only)
/dev/vnd0f on /sbin type ffs (local, noatime, nodev, read-only)
/dev/vnd0a on /root type ffs (local, noatime, nodev, nosuid, read-only)
/dev/vnd0d on /bin type ffs (local, noatime, nodev, nosuid, read-only)
/dev/vnd0g on /usr type ffs (local, noatime, nodev, read-only)
tmpfs on /var type tmpfs (local, noatime, nodev, nosuid)
tmpfs on /home type tmpfs (local, noatime, nodev, nosuid)
tmpfs on /tmp type tmpfs (local, noatime, nodev, nosuid)
/dev/sd0d on /data type ffs (local)
#
# iostat 1 10
tty sd0 rd0 sd1
sd2 cpu
tin tout KB/t t/s MB/s KB/t t/s MB/s KB/t t/s MB/s KB/t
t/s MB/s us ni sy in id
0 1 15.28 0 0.00 0.00 0 0.00 6.09 0 0.00 0.00
0 0.00 0 0 1 1 98
0 294 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0.00
0 0.00 0 0 1 3 96
0 97 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0.00
0 0.00 0 0 2 3 95
0 97 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0.00
0 0.00 0 0 1 1 98
0 98 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0.00
0 0.00 0 0 0 0100
0 96 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0.00
0 0.00 1 0 1 2 96
0 98 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0.00
0 0.00 0 0 0 1 99
0 97 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0.00
0 0.00 0 0 2 1 97
0 97 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0.00
0 0.00 0 0 0 1 99
0 96 0.00 0 0.00 0.00 0 0.00 0.00 0 0.00 0.00
0 0.00 2 0 0 3 95
#
# uname -a
OpenBSD gw.idst 5.9 FLASHRD.MP#2 amd64
#
# dmesg
OpenBSD 5.9-stable (FLASHRD.MP) #2: Wed Aug 17 17:48:07 CEST 2016
r...@openbsd-59-amd64-build.my.domain:/usr/src/sys/arch/amd64/compile/FLASHRD.MP
real mem = 2098520064 (2001MB)
avail mem = 2028883968 (1934MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0x7e16d820 (6 entries)
bios0: vendor coreboot version "SageBios_PCEngines_APU-45" date 04/05/2014
bios0: PC Engines APU
acpi0 at bios0: rev 0
acpi0: sleep states S0 S1 S3 S4 S5
acpi0: tables DSDT FACP SPCR HPET APIC HEST SSDT SSDT SSDT
acpi0: wakeup devices AGPB(S4) HDMI(S4) PBR4(S4) PBR5(S4) PBR6(S4)
PBR7(S4) PE20(S4) PE21(S4) PE22(S4) PE23(S4) PIBR(S4) UOH1(S3) UOH2(S3)
UOH3(S3) UOH4(S3) UOH5(S3) [...]
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpihpet0 at acpi0: 14318180 Hz
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: AMD G-T40E Processor, 1000.13 MHz
cpu0:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,SSSE3,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,IBS,SKINIT,ITSC
cpu0: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 512KB
64b/line 16-way L2 cache
cpu0: 8 4MB entries fully associative
cpu0: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 8 var ranges, 88 fixed ranges
cpu0: apic clock running at 199MHz
cpu0: mwait min=64, max=64, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: AMD G-T40E Processor, 1000.00 MHz
cpu1:
FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CFLUSH,MMX,FXSR,SSE,SSE2,HTT,SSE3,MWAIT,SSSE3,CX16,POPCNT,NXE,MMXX,FFXSR,PAGE1GB,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,IBS,SKINIT,ITSC
cpu1: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 512KB
64b/line 16-way L2 cache
cpu1: 8 4MB entries fully associative
cpu1: DTLB 40 4KB entries fully associative, 8 4MB entries fully associative
cpu1: smt 0, core 1, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 21, 24 pins
acpiprt0 at acpi0: bus -1 (AGPB)
acpiprt1 at acpi0: bus -1 (HDMI)
acpiprt2 at acpi0: bus 1 (PBR4)
acpiprt3 at acpi0: bus 2 (PBR5)
acpiprt4 at acpi0: bus 3 (PBR6)
acpiprt5 at acpi0: bus -1 (PBR7)
acpiprt6 at acpi0: bus 5 (PE20)
acpiprt7 at acpi0: bus -1 (PE21)
acpiprt8 at acpi0: bus -1 (PE22)
acpiprt9 at acpi0: bus -1 (PE23)
acpiprt10 at acpi0: bus 0 (PCI0)
acpiprt11 at acpi0: bus 4 (PIBR)
acpicpu0 at acpi0: C2(0@100 io@0x841), C1(@1 halt!), PSS
acpicpu1 at acpi0: C2(0@100 io@0x841), C1(@1 halt!), PSS
acpibtn0 at acpi0: PWRB
cpu0: 1000 MHz: speeds: 1000 800 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "AMD AMD64 14h Host" rev 0x00
ppb0 at pci0 dev 4 function 0 "AMD AMD64 14h PCIE" rev 0x00: msi
pci1 at ppb0 bus 1
re0 at pci1 dev 0 function 0 "Realtek 8168" rev 0x06: RTL8168E/8111E
(0x2c00), msi, address 00:0d:b9:3c:b2:74
rgephy0 at re0 phy 7: RTL8169S/8110S/8211 PHY, rev. 4
ppb1 at pci0 dev 5 function 0 "AMD AMD64 14h PCIE" rev 0x00: msi
pci2 at ppb1 bus 2
re1 at pci2 dev 0 function 0 "Realtek 8168" rev 0x06: RTL8168E/8111E
(0x2c00), msi, address 00:0d:b9:3c:b2:75
rgephy1 at re1 phy 7: RTL8169S/8110S/8211 PHY, rev. 4
ppb2 at pci0 dev 6 function 0 "AMD AMD64 14h PCIE" rev 0x00: msi
pci3 at ppb2 bus 3
re2 at pci3 dev 0 function 0 "Realtek 8168" rev 0x06: RTL8168E/8111E
(0x2c00), msi, address 00:0d:b9:3c:b2:76
rgephy2 at re2 phy 7: RTL8169S/8110S/8211 PHY, rev. 4
ahci0 at pci0 dev 17 function 0 "ATI SBx00 SATA" rev 0x40: apic 2 int
19, AHCI 1.2
ahci0: port 0: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, SATA SSD, S9FM> SCSI3 0/direct fixed
t10.ATA_SATA_SSD_81B5074C1B6500077131
sd0: 15272MB, 512 bytes/sector, 31277232 sectors, thin
ohci0 at pci0 dev 18 function 0 "ATI SB700 USB" rev 0x00: apic 2 int 18,
version 1.0, legacy support
ehci0 at pci0 dev 18 function 2 "ATI SB700 USB2" rev 0x00: apic 2 int 17
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 "ATI EHCI root hub" rev 2.00/1.00 addr 1
ohci1 at pci0 dev 19 function 0 "ATI SB700 USB" rev 0x00: apic 2 int 18,
version 1.0, legacy support
ehci1 at pci0 dev 19 function 2 "ATI SB700 USB2" rev 0x00: apic 2 int 17
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 "ATI EHCI root hub" rev 2.00/1.00 addr 1
piixpm0 at pci0 dev 20 function 0 "ATI SBx00 SMBus" rev 0x42: polling
iic0 at piixpm0
pcib0 at pci0 dev 20 function 3 "ATI SB700 ISA" rev 0x40
ppb3 at pci0 dev 20 function 4 "ATI SB600 PCI" rev 0x40
pci4 at ppb3 bus 4
ohci2 at pci0 dev 20 function 5 "ATI SB700 USB" rev 0x00: apic 2 int 18,
version 1.0, legacy support
ppb4 at pci0 dev 21 function 0 "ATI SB800 PCIE" rev 0x00
pci5 at ppb4 bus 5
ohci3 at pci0 dev 22 function 0 "ATI SB700 USB" rev 0x00: apic 2 int 18,
version 1.0, legacy support
ehci2 at pci0 dev 22 function 2 "ATI SB700 USB2" rev 0x00: apic 2 int 17
usb2 at ehci2: USB revision 2.0
uhub2 at usb2 "ATI EHCI root hub" rev 2.00/1.00 addr 1
pchb1 at pci0 dev 24 function 0 "AMD AMD64 14h Link Cfg" rev 0x43
pchb2 at pci0 dev 24 function 1 "AMD AMD64 14h Address Map" rev 0x00
pchb3 at pci0 dev 24 function 2 "AMD AMD64 14h DRAM Cfg" rev 0x00
km0 at pci0 dev 24 function 3 "AMD AMD64 14h Misc Cfg" rev 0x00
pchb4 at pci0 dev 24 function 4 "AMD AMD64 14h CPU Power" rev 0x00
pchb5 at pci0 dev 24 function 5 "AMD AMD64 14h Reserved" rev 0x00
pchb6 at pci0 dev 24 function 6 "AMD AMD64 14h NB Power" rev 0x00
pchb7 at pci0 dev 24 function 7 "AMD AMD64 14h Reserved" rev 0x00
usb3 at ohci0: USB revision 1.0
uhub3 at usb3 "ATI OHCI root hub" rev 1.00/1.00 addr 1
usb4 at ohci1: USB revision 1.0
uhub4 at usb4 "ATI OHCI root hub" rev 1.00/1.00 addr 1
isa0 at pcib0
com0 at isa0 port 0x3f8/8 irq 4: ns16550a, 16 byte fifo
com0: console
com1 at isa0 port 0x2f8/8 irq 3: ns16550a, 16 byte fifo
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
lpt0 at isa0 port 0x378/4 irq 7
wbsio0 at isa0 port 0x2e/2: NCT5104D rev 0x52
usb5 at ohci2: USB revision 1.0
uhub5 at usb5 "ATI OHCI root hub" rev 1.00/1.00 addr 1
usb6 at ohci3: USB revision 1.0
uhub6 at usb6 "ATI OHCI root hub" rev 1.00/1.00 addr 1
umass0 at uhub0 port 5 configuration 1 interface 0 "TOSHIBA External USB
3.0" rev 2.10/0.00 addr 2
umass0: using SCSI over Bulk-Only
scsibus2 at umass0: 2 targets, initiator 0
sd1 at scsibus2 targ 1 lun 0: <TOSHIBA, External USB 3.0, 0> SCSI4
0/direct fixed serial.0480a00e31206004642F
sd1: 476940MB, 512 bytes/sector, 976773168 sectors
umass1 at uhub2 port 1 configuration 1 interface 0 "Generic Flash Card
Reader/Writer" rev 2.01/1.00 addr 2
umass1: using SCSI over Bulk-Only
scsibus3 at umass1: 2 targets, initiator 0
sd2 at scsibus3 targ 1 lun 0: <Multiple, Card Reader, 1.00> SCSI2
0/direct removable serial.058f6366058F63666485
vscsi0 at root
scsibus4 at vscsi0: 256 targets
softraid0 at root
scsibus5 at softraid0: 256 targets
root on rd0a swap on rd0b dump on rd0b
Kind regards,
Marco
