Are you running a tmux command from any shell script or cron or anything? There are only two places tmux itself opens /dev/null and they are both after fork so this must be /dev/null passed with imsg from a client.
Also please should me output of "tmux info". On Wed, Sep 26, 2012 at 09:29:50AM +0200, S?bastien Marie wrote: > Hi, > > I'm running -current (not latest, only GENERIC.MP#20), see dmesg below. > > I run in a error in tmux (a long session: 10 days for now), when a want to > create a new window (C-b C-c), I have this error: > > Create window failed: exec ksh: Too many open files > > Note, my default shell in tmux.conf is "exec ksh" (see ~/.tmux.conf below) > > > My limit for open files are standard: > semarie@bert:~$ ulimit -n > 512 > > > Currently, I have only 4 windows in this sessions, but: > > semarie@bert:~$ fstat -u semarie | grep tmux > semarie tmux 3941 wd /home 4053504 drwx------ r 2560 > semarie tmux 3941 0 / 17084 crw--w---- rw ttyp5 > semarie tmux 3941 1 / 17084 crw--w---- rw ttyp5 > semarie tmux 3941 2 / 17084 crw--w---- rw ttyp5 > semarie tmux 3941 3 kqueue 0xd8c0f3d4 0 state: W > semarie tmux 3941 4 /home 4053890 -rw-r--r-- r 1859 > semarie tmux 3941 5* unix stream 0xd31c7680 <-> 0xd4105380 > semarie tmux 1509 wd /home 4053504 drwx------ r 2560 > semarie tmux 1509 0 / 17621 crw-rw-rw- rw null > semarie tmux 1509 1 / 17621 crw-rw-rw- rw null > semarie tmux 1509 2 / 17621 crw-rw-rw- rw null > semarie tmux 1509 3 kqueue 0xd8c0f310 0 state: W > semarie tmux 1509 4 /home 4053942 -rw-r--r-- r 1805 > semarie tmux 1509 5* unix stream 0xd4105380 <-> 0xd31c7680 > semarie tmux 1509 6* unix stream 0xd3228740 > semarie tmux 1509 7 / 17084 crw--w---- rw ttyp5 > semarie tmux 1509 9 / 17621 crw-rw-rw- r null > semarie tmux 1509 10 / 17079 crw-rw-rw- rw ptyp2 > semarie tmux 1509 11 / 17621 crw-rw-rw- r null > semarie tmux 1509 12 / 17621 crw-rw-rw- r null > semarie tmux 1509 13 / 17621 crw-rw-rw- r null > semarie tmux 1509 14 / 17621 crw-rw-rw- r null > semarie tmux 1509 15 / 17621 crw-rw-rw- r null > semarie tmux 1509 16 / 17621 crw-rw-rw- r null > [...] > semarie tmux 1509 503 / 17621 crw-rw-rw- r null > semarie tmux 1509 504 / 17621 crw-rw-rw- r null > semarie tmux 1509 505 / 17621 crw-rw-rw- r null > semarie tmux 1509 506 / 17621 crw-rw-rw- r null > semarie tmux 1509 507 / 17621 crw-rw-rw- r null > semarie tmux 1509 508 / 17621 crw-rw-rw- r null > semarie tmux 1509 509 / 17618 crw-rw-rw- r tty > semarie tmux 1509 510 / 17618 crw-rw-rw- r tty > > There are 510 descriptors opened... > > Any hints ? > > Does tmux could not closed not-need descriptors for old created windows ? > > It will try too keep this session running for debug if need... > > I could also upgrade to latest snapshot if needed. But I don't show any > commit to tmux that seems related to that. But I could be wrong: please let > me know. > > Thanks. > -- > Sebastien Marie > > My ~/.tmux.conf > > set -g default-command "exec ksh" > set -g status-right "#(sysctl -n vm.loadavg)" > > # Statusbar properties. > set -g display-time 3000 > set -g status-bg black > set -g status-fg cyan > set-window-option -g window-status-current-attr bright,reverse > set-window-option -g window-status-current-bg cyan > set-window-option -g window-status-current-fg black > > # divers > set -g default-path "" > set -g bell-action any > set -g set-titles on > set -g base-index 1 > set -g history-limit 5000 > set -g update-environment "DISPLAY WINDOWID SSH_ASKPASS SSH_AUTH_SOCK > SSH_AGENT_PID SSH_CONNECTION DBUS_SESSION_BUS_ADDRESS XDG_SESSION_COOKIE > KRB5CCNAME" > > > My dmesg: > > OpenBSD 5.2-current (GENERIC.MP) #20: Tue Sep 11 11:54:03 MDT 2012 > [email protected]:/usr/src/sys/arch/i386/compile/GENERIC.MP > cpu0: Genuine Intel(R) CPU T2400 @ 1.83GHz ("GenuineIntel" 686-class) 1.83 GHz > cpu0: > FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,NXE,SSE3,MWAIT,VMX,EST,TM2,xTPR,PDCM > real mem = 2137399296 (2038MB) > avail mem = 2091552768 (1994MB) > mainbus0 at root > bios0 at mainbus0: AT/286+ BIOS, date 03/09/06, BIOS32 rev. 0 @ 0xffa10, > SMBIOS rev. 2.4 @ 0xf7b70 (44 entries) > bios0: vendor Dell Inc. version "A03" date 03/09/2006 > bios0: Dell Inc. MM061 > acpi0 at bios0: rev 0 > acpi0: sleep states S0 S3 S4 S5 > acpi0: tables DSDT FACP APIC MCFG BOOT SSDT > acpi0: wakeup devices LID_(S3) PBTN(S4) PCI0(S3) USB0(S0) USB1(S0) USB2(S0) > USB3(S0) EHCI(S0) CH31(S0) AZAL(S3) PCIE(S4) RP01(S4) RP02(S3) RP03(S3) > RP04(S3) RP05(S3) RP06(S3) > acpitimer0 at acpi0: 3579545 Hz, 24 bits > acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat > cpu0 at mainbus0: apid 0 (boot processor) > cpu0: apic clock running at 166MHz > cpu1 at mainbus0: apid 1 (application processor) > cpu1: Genuine Intel(R) CPU T2400 @ 1.83GHz ("GenuineIntel" 686-class) 1.83 GHz > cpu1: > FPU,V86,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,CFLUSH,DS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE,NXE,SSE3,MWAIT,VMX,EST,TM2,xTPR,PDCM > ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 24 pins > ioapic0: misconfigured as apic 0, remapped to apid 2 > acpimcfg0 at acpi0 addr 0xe0000000, bus 0-63 > acpiprt0 at acpi0: bus 0 (PCI0) > acpiprt1 at acpi0: bus -1 (AGP_) > acpiprt2 at acpi0: bus 3 (PCIE) > acpiprt3 at acpi0: bus 11 (RP01) > acpiprt4 at acpi0: bus -1 (RP02) > acpiprt5 at acpi0: bus -1 (RP03) > acpiprt6 at acpi0: bus 12 (RP04) > acpiprt7 at acpi0: bus -1 (RP05) > acpiprt8 at acpi0: bus -1 (RP06) > acpicpu0 at acpi0: C3, C2, C1, PSS > acpicpu1 at acpi0: C3, C2, C1, PSS > acpitz0 at acpi0: critical temperature is 126 degC > acpiac0 at acpi0: AC unit online > acpibat0 at acpi0: BAT0 model " DELLUD2649" serial 878 type LION oem "Sanyo" > acpibtn0 at acpi0: LID_ > acpibtn1 at acpi0: PBTN > acpibtn2 at acpi0: SBTN > acpivideo0 at acpi0: VID_ > acpivideo1 at acpi0: VID_ > acpivideo2 at acpi0: VID2 > bios0: ROM list: 0xc0000/0xe800! 0xce800/0x1800 > cpu0: Enhanced SpeedStep 1829 MHz: speeds: 1833, 1333, 1000 MHz > pci0 at mainbus0 bus 0: configuration mode 1 (bios) > pchb0 at pci0 dev 0 function 0 "Intel 82945GM Host" rev 0x03 > vga1 at pci0 dev 2 function 0 "Intel 82945GM Video" rev 0x03 > wsdisplay0 at vga1 mux 1: console (80x25, vt100 emulation) > wsdisplay0: screen 1-5 added (80x25, vt100 emulation) > intagp0 at vga1 > agp0 at intagp0: aperture at 0xc0000000, size 0x10000000 > inteldrm0 at vga1: apic 2 int 16 > drm0 at inteldrm0 > "Intel 82945GM Video" rev 0x03 at pci0 dev 2 function 1 not configured > azalia0 at pci0 dev 27 function 0 "Intel 82801GB HD Audio" rev 0x01: msi > azalia0: codecs: Sigmatel STAC9200, Conexant/0x2bfa, using Sigmatel STAC9200 > audio0 at azalia0 > ppb0 at pci0 dev 28 function 0 "Intel 82801GB PCIE" rev 0x01: apic 2 int 16 > pci1 at ppb0 bus 11 > wpi0 at pci1 dev 0 function 0 "Intel PRO/Wireless 3945ABG" rev 0x02: msi, > MoW2, address 00:13:02:2e:8b:46 > ppb1 at pci0 dev 28 function 3 "Intel 82801GB PCIE" rev 0x01: apic 2 int 19 > pci2 at ppb1 bus 12 > uhci0 at pci0 dev 29 function 0 "Intel 82801GB USB" rev 0x01: apic 2 int 20 > uhci1 at pci0 dev 29 function 1 "Intel 82801GB USB" rev 0x01: apic 2 int 21 > uhci2 at pci0 dev 29 function 2 "Intel 82801GB USB" rev 0x01: apic 2 int 22 > uhci3 at pci0 dev 29 function 3 "Intel 82801GB USB" rev 0x01: apic 2 int 23 > ehci0 at pci0 dev 29 function 7 "Intel 82801GB USB" rev 0x01: apic 2 int 20 > usb0 at ehci0: USB revision 2.0 > uhub0 at usb0 "Intel EHCI root hub" rev 2.00/1.00 addr 1 > ppb2 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xe1 > pci3 at ppb2 bus 3 > bce0 at pci3 dev 0 function 0 "Broadcom BCM4401B1" rev 0x02: apic 2 int 17, > address 00:15:c5:0b:8b:7a > bmtphy0 at bce0 phy 1: BCM4401 10/100baseTX PHY, rev. 0 > "Ricoh 5C832 Firewire" rev 0x00 at pci3 dev 1 function 0 not configured > sdhc0 at pci3 dev 1 function 1 "Ricoh 5C822 SD/MMC" rev 0x19: apic 2 int 18 > sdmmc0 at sdhc0 > "Ricoh 5C843 MMC" rev 0x01 at pci3 dev 1 function 2 not configured > "Ricoh 5C592 Memory Stick" rev 0x0a at pci3 dev 1 function 3 not configured > "Ricoh 5C852 xD" rev 0x05 at pci3 dev 1 function 4 not configured > ichpcib0 at pci0 dev 31 function 0 "Intel 82801GBM LPC" rev 0x01: PM disabled > pciide0 at pci0 dev 31 function 2 "Intel 82801GBM SATA" rev 0x01: DMA, > channel 0 wired to compatibility, channel 1 wired to compatibility > wd0 at pciide0 channel 0 drive 0: <Hitachi HTS541616J9SA00> > wd0: 16-sector PIO, LBA48, 152627MB, 312581808 sectors > wd0(pciide0:0:0): using PIO mode 4, Ultra-DMA mode 5 > atapiscsi0 at pciide0 channel 1 drive 0 > scsibus0 at atapiscsi0: 2 targets > cd0 at scsibus0 targ 0 lun 0: <_NEC, DVD+-RW ND-6650A, 102C> ATAPI 5/cdrom > removable > cd0(pciide0:1:0): using PIO mode 4, Ultra-DMA mode 2 > ichiic0 at pci0 dev 31 function 3 "Intel 82801GB SMBus" rev 0x01: apic 2 int > 17 > iic0 at ichiic0 > spdmem0 at iic0 addr 0x50: 1GB DDR2 SDRAM non-parity PC2-5300CL5 SO-DIMM > spdmem1 at iic0 addr 0x52: 1GB DDR2 SDRAM non-parity PC2-5300CL5 SO-DIMM > usb1 at uhci0: USB revision 1.0 > uhub1 at usb1 "Intel UHCI root hub" rev 1.00/1.00 addr 1 > usb2 at uhci1: USB revision 1.0 > uhub2 at usb2 "Intel UHCI root hub" rev 1.00/1.00 addr 1 > usb3 at uhci2: USB revision 1.0 > uhub3 at usb3 "Intel UHCI root hub" rev 1.00/1.00 addr 1 > usb4 at uhci3: USB revision 1.0 > uhub4 at usb4 "Intel UHCI root hub" rev 1.00/1.00 addr 1 > isa0 at ichpcib0 > 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 > pms0 at pckbc0 (aux slot) > pckbc0: using irq 12 for aux slot > wsmouse0 at pms0 mux 0 > pms0: Synaptics touchpad, firmware 6.2 > pcppi0 at isa0 port 0x61 > spkr0 at pcppi0 > npx0 at isa0 port 0xf0/16: reported by CPUID; using exception 16 > mtrr: Pentium Pro MTRR support > vscsi0 at root > scsibus1 at vscsi0: 256 targets > softraid0 at root > scsibus2 at softraid0: 256 targets > root on wd0a (3ed108d2b4f1280b.a) swap on wd0b dump on wd0b > sd0 at scsibus2 targ 1 lun 0: <OPENBSD, SR CRYPTO, 005> SCSI2 0/direct fixed > sd0: 51200MB, 512 bytes/sector, 104857680 sectors
