>Synopsis: tmux can be made to dump core when a certain bind-key option is
>present
>Category: system
>Environment:
System : OpenBSD 6.0
Details : OpenBSD 6.0-current (GENERIC.MP) #158: Mon Jan 30
19:30:12 MST 2017
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
When in a tmux session hitting the command prefix key + PgUp and PgDn
immediately afterwards causes a core dump if a certain bind-key option
is present. The backtrace is not useful (/etc/malloc.conf -> CFGJU).
This bind-key is not necessary as far as I can tell, since the default
behavior of recent tmux seems to be what that bind-key intends to do
(enter copy mode when C-b PageUp is pressed). I don't know how I had
it in my ~/.tmux.conf, but commenting it out stops the core dump.
>How-To-Repeat:
(1) tmux with the default configuration (mv away your ~/.tmux.conf
or touch nonexistent_file && tmux -f nonexistent_file)
(2) Hit C-b : bind-key PageUp copy-mode -eu
(3) Hit C-b PageUp PageDown
>Fix:
Sadly, I don't have one.
dmesg:
OpenBSD 6.0-current (GENERIC.MP) #158: Mon Jan 30 19:30:12 MST 2017
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 4201316352 (4006MB)
avail mem = 4069326848 (3880MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.4 @ 0xe0010 (63 entries)
bios0: vendor LENOVO version "7NETC1WW (2.21 )" date 10/09/2009
bios0: LENOVO 7666WD4
acpi0 at bios0: rev 2
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP SSDT ECDT TCPA APIC MCFG HPET SLIC BOOT ASF! SSDT SSDT
SSDT SSDT
acpi0: wakeup devices LID_(S3) SLPB(S3) IGBE(S4) EXP0(S4) EXP1(S4) EXP2(S4)
EXP3(S4) EXP4(S4) PCI1(S4) USB0(S3) USB1(S3) USB2(S3) USB3(S3) USB4(S3)
EHC0(S3) EHC1(S3) [...]
acpitimer0 at acpi0: 3579545 Hz, 24 bits
acpiec0 at acpi0
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: Intel(R) Core(TM)2 Duo CPU L7500 @ 1.60GHz, 1795.86 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,NXE,LONG,LAHF,PERF,SENSOR
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 199MHz
cpu0: mwait min=64, max=64, C-substates=0.2.2.2.2, IBE
cpu1 at mainbus0: apid 1 (application processor)
cpu1: Intel(R) Core(TM)2 Duo CPU L7500 @ 1.60GHz, 1596.00 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,NXE,LONG,LAHF,PERF,SENSOR
cpu1: 4MB 64b/line 16-way L2 cache
cpu1: smt 0, core 1, package 0
ioapic0 at mainbus0: apid 1 pa 0xfec00000, version 20, 24 pins
acpimcfg0 at acpi0 addr 0xf0000000, bus 0-63
acpihpet0 at acpi0: 14318179 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (AGP_)
acpiprt2 at acpi0: bus 2 (EXP0)
acpiprt3 at acpi0: bus 3 (EXP1)
acpiprt4 at acpi0: bus -1 (EXP2)
acpiprt5 at acpi0: bus -1 (EXP3)
acpiprt6 at acpi0: bus -1 (EXP4)
acpiprt7 at acpi0: bus 5 (PCI1)
acpicpu0 at acpi0: !C3(250@17 mwait.3@0x20), !C2(500@1 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpicpu1 at acpi0: !C3(250@17 mwait.3@0x20), !C2(500@1 mwait.1@0x10), C1(1000@1
mwait.1), PSS
acpipwrres0 at acpi0: PUBS, resource for USB0, USB2, USB4, EHC0, EHC1
acpitz0 at acpi0: critical temperature is 127 degC
acpitz1 at acpi0: critical temperature is 100 degC
acpibtn0 at acpi0: LID_
acpibtn1 at acpi0: SLPB
"PNP0303" at acpi0 not configured
"IBM3780" at acpi0 not configured
acpibat0 at acpi0: BAT0 model "42T4571" serial 6529 type LION oem "SONY"
acpiac0 at acpi0: AC unit online
acpithinkpad0 at acpi0
acpidock0 at acpi0: GDCK not docked (0)
acpivideo0 at acpi0: VID_
acpivout0 at acpivideo0: LCD0
acpivideo1 at acpi0: VID_
cpu0: Enhanced SpeedStep 1795 MHz: speeds: 1601, 1600, 1200, 800 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel GM965 Host" rev 0x0c
inteldrm0 at pci0 dev 2 function 0 "Intel GM965 Video" rev 0x0c
drm0 at inteldrm0
intagp0 at inteldrm0
agp0 at intagp0: aperture at 0xe0000000, size 0x10000000
inteldrm0: msi
inteldrm0: 1024x768, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation)
wsdisplay0: screen 1-5 added (std, vt100 emulation)
"Intel GM965 Video" rev 0x0c at pci0 dev 2 function 1 not configured
em0 at pci0 dev 25 function 0 "Intel ICH8 IGP M AMT" rev 0x03: msi, address
00:16:d3:c6:70:55
uhci0 at pci0 dev 26 function 0 "Intel 82801H USB" rev 0x03: apic 1 int 20
uhci1 at pci0 dev 26 function 1 "Intel 82801H USB" rev 0x03: apic 1 int 21
ehci0 at pci0 dev 26 function 7 "Intel 82801H USB" rev 0x03: apic 1 int 22
usb0 at ehci0: USB revision 2.0
uhub0 at usb0 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00
addr 1
azalia0 at pci0 dev 27 function 0 "Intel 82801H HD Audio" rev 0x03: msi
azalia0: codecs: Analog Devices AD1984, Conexant/0x2bfa, using Analog Devices
AD1984
audio0 at azalia0
ppb0 at pci0 dev 28 function 0 "Intel 82801H PCIE" rev 0x03: msi
pci1 at ppb0 bus 2
ppb1 at pci0 dev 28 function 1 "Intel 82801H PCIE" rev 0x03: msi
pci2 at ppb1 bus 3
iwn0 at pci2 dev 0 function 0 "Intel Wireless WiFi Link 4965" rev 0x61: msi,
MIMO 2T3R, MoW1, address 00:1d:e0:38:87:cd
uhci2 at pci0 dev 29 function 0 "Intel 82801H USB" rev 0x03: apic 1 int 16
uhci3 at pci0 dev 29 function 1 "Intel 82801H USB" rev 0x03: apic 1 int 17
ehci1 at pci0 dev 29 function 7 "Intel 82801H USB" rev 0x03: apic 1 int 19
usb1 at ehci1: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "Intel EHCI root hub" rev 2.00/1.00
addr 1
ppb2 at pci0 dev 30 function 0 "Intel 82801BAM Hub-to-PCI" rev 0xf3
pci3 at ppb2 bus 5
cbb0 at pci3 dev 0 function 0 "Ricoh 5C476 CardBus" rev 0xba: apic 1 int 16
"Ricoh 5C832 Firewire" rev 0x04 at pci3 dev 0 function 1 not configured
sdhc0 at pci3 dev 0 function 2 "Ricoh 5C822 SD/MMC" rev 0x21: apic 1 int 18
sdhc0: SDHC 1.0, 33 MHz base clock
sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed
cardslot0 at cbb0 slot 0 flags 0
cardbus0 at cardslot0: bus 6 device 0 cacheline 0x8, lattimer 0xb0
pcmcia0 at cardslot0
pcib0 at pci0 dev 31 function 0 "Intel 82801HEM LPC" rev 0x03
pciide0 at pci0 dev 31 function 1 "Intel 82801HBM IDE" rev 0x03: DMA, channel 0
configured to compatibility, channel 1 configured to compatibility
pciide0: channel 0 disabled (no drives)
pciide0: channel 1 ignored (disabled)
ahci0 at pci0 dev 31 function 2 "Intel 82801HBM AHCI" rev 0x03: msi, AHCI 1.1
ahci0: port 0: 1.5Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, ST980817AS, 3.CM> SCSI3 0/direct fixed
naa.5000c5000e702274
sd0: 76319MB, 512 bytes/sector, 156301488 sectors
ichiic0 at pci0 dev 31 function 3 "Intel 82801H SMBus" rev 0x03: apic 1 int 23
iic0 at ichiic0
usb2 at uhci0: USB revision 1.0
uhub2 at usb2 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00
addr 1
usb3 at uhci1: USB revision 1.0
uhub3 at usb3 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00
addr 1
usb4 at uhci2: USB revision 1.0
uhub4 at usb4 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00
addr 1
usb5 at uhci3: USB revision 1.0
uhub5 at usb5 configuration 1 interface 0 "Intel UHCI root hub" rev 1.00/1.00
addr 1
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
pms0 at pckbc0 (aux slot)
wsmouse0 at pms0 mux 0
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
aps0 at isa0 port 0x1600/31
vmm0 at mainbus0: VMX
acpivideo0: unknown event 0x00
uhub6 at uhub0 port 3 configuration 1 interface 0 "Genesys Logic USB2.0 Hub"
rev 2.00/32.98 addr 2
ualea0 at uhub6 port 2 configuration 1 interface 0 "Araneus Alea II TRNG" rev
2.00/2.04 addr 3
uvideo0 at uhub1 port 1 configuration 1 interface 0 "AVEO Technology Corp.
USB2.0 Camera" rev 2.00/8.17 addr 2
video0 at uvideo0
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (fef71ebfa57e6693.a) swap on sd0b dump on sd0b
usbdevs:
Controller /dev/usb0:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
port 3 addr 2: high speed, self powered, config 1, USB2.0 Hub(0x0608), Genesys
Logic(0x05e3), rev 32.98
port 1 powered
port 2 addr 3: full speed, power 50 mA, config 1, Alea II TRNG(0x0001),
Araneus(0x12d8), rev 2.04, iSerialNumber 003709
port 3 powered
port 4 powered
port 4 powered
Controller /dev/usb1:
addr 1: high speed, self powered, config 1, EHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 addr 2: high speed, power 500 mA, config 1, USB2.0 Camera(0x0306), AVEO
Technology Corp.(0x1871), rev 8.17
port 3 powered
port 4 powered
Controller /dev/usb2:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
Controller /dev/usb3:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
Controller /dev/usb4:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
Controller /dev/usb5:
addr 1: full speed, self powered, config 1, UHCI root hub(0x0000),
Intel(0x8086), rev 1.00
port 1 powered
port 2 powered
