Hi there
First of all thanks for your wonderful work, I've been using OpenBSD as my
daily driver for years with no problems.
Best Regards
>Synopsis: Kernel panic rebooting after sshfs issue
>Category: system
>Environment:
System : OpenBSD 7.8
Details : OpenBSD 7.8-current (GENERIC.MP) #243: Mon Feb 16
23:38:30 MST 2026
[email protected]:/usr/src/sys/arch/amd64/compile/
GENERIC.MP
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
I usually mount a remote folder with sshfs, after the last sysupgrade I
got
this issue:
- after a few hours the folder becomes unresponsive: ls hangs, any
process accessing the folder hangs, umount hangs
- any attempt to kill -9 the processes that access the folder fails
(without giving
any error)
- ls on the user home directory hangs
at this point trying to reboot the machine panics the kernel:
https://lucamarx.com/kernel_panic.jpg
>How-To-Repeat:
I haven't been able to reproduce the issue: the folder is mounted with
the following command
sshfs -o idmap=user,allow_other,uid=1000,gid=1000
luca@bluemonday:/tank/media/luca
/home/luca/Mnt
>Fix:
Unknown
dmesg:
OpenBSD 7.8-current (GENERIC.MP) #243: Mon Feb 16 23:38:30 MST 2026
[email protected]:/usr/src/sys/arch/amd64/compile/GENERIC.MP
real mem = 34114707456 (32534MB)
avail mem = 33053536256 (31522MB)
random: good seed from bootblocks
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 3.1 @ 0xea6e0 (102 entries)
bios0: vendor Dell Inc. version "1.22.0" date 07/03/2023
bios0: Dell Inc. OptiPlex 7070
efi0 at bios0: UEFI 2.7
efi0: American Megatrends rev 0x5000d
acpi0 at bios0: ACPI 6.1
acpi0: sleep states S0 S3 S4 S5
acpi0: tables DSDT FACP APIC FPDT FIDT MCFG SSDT BOOT SSDT HPET SSDT SSDT
UEFI LPIT SSDT SSDT DBGP DBG2 MSDM SLIC DMAR SSDT TPM2 ASF! WSMT BGRT
acpi0: wakeup devices RP01(S4) PXSX(S4) RP02(S4) PXSX(S4) RP03(S4) PXSX(S4)
RP04(S4) PXSX(S4) RP05(S4) PXSX(S4) RP06(S4) PXSX(S4) RP07(S4) PXSX(S4)
RP08(S4) PXSX(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) i7-9700 CPU @ 3.00GHz, 2993.03 MHz, 06-9e-0d, patch
00000104
cpu0: cpuid 1
edx=bfebfbff<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>
ecx=77fafbff<SSE3,PCLMUL,DTES64,MWAIT,DS-CPL,VMX,SMX,EST,TM2,SSSE3,SDBG,FMA3,CX16,xTPR,PDCM,PCID,SSE4.1,SSE4.2,x2APIC,MOVBE,POPCNT,DEADLINE,AES,XSAVE,AVX,F16C,RDRAND>
cpu0: cpuid 6 eax=27f7<SENSOR,ARAT,PTS> ecx=9<EFFFREQ>
cpu0: cpuid 7.0
ebx=29c67af<FSGSBASE,TSC_ADJUST,SGX,BMI1,AVX2,SMEP,BMI2,ERMS,INVPCID,MPX,RDSEED,ADX,SMAP,CLFLUSHOPT,PT>
ecx=40000000 edx=bc000e00<SRBDS_CTRL,MD_CLEAR,IBRS,IBPB,STIBP,L1DF,SSBD>
cpu0: cpuid a vers=4, gp=8, gpwidth=48, ff=3, ffwidth=48
cpu0: cpuid d.1 eax=f<XSAVEOPT,XSAVEC,XGETBV1,XSAVES>
cpu0: cpuid 80000001 edx=2c100800<NXE,PAGE1GB,RDTSCP,LONG>
ecx=121<LAHF,ABM,3DNOWP>
cpu0: cpuid 80000007 edx=100<ITSC>
cpu0: msr
10a=a0a0cab<IBRS_ALL,SKIP_L1DFL,MDS_NO,TSX_CTRL,MISC_PKG_CT,ENERGY_FILT,FB_CLEAR,RRSBA,GDS_CTRL,RFDS_NO>
cpu0: 32KB 64b/line 8-way D-cache, 32KB 64b/line 8-way I-cache, 256KB
64b/line 4-way L2 cache, 12MB 64b/line 12-way L3 cache
cpu0: smt 0, core 0, package 0
mtrr: Pentium Pro MTRR support, 10 var ranges, 88 fixed ranges
cpu0: apic clock running at 24MHz
cpu0: mwait min=64, max=64, C-substates=0.2.1.2.4.1.1.1, IBE
cpu1 at mainbus0: apid 2 (application processor)
cpu1: Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz, 2993.05 MHz, 06-9e-0d, patch
00000104
cpu1: smt 0, core 1, package 0
cpu2 at mainbus0: apid 4 (application processor)
cpu2: Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz, 2993.03 MHz, 06-9e-0d, patch
00000104
cpu2: smt 0, core 2, package 0
cpu3 at mainbus0: apid 6 (application processor)
cpu3: Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz, 2993.03 MHz, 06-9e-0d, patch
00000104
cpu3: smt 0, core 3, package 0
cpu4 at mainbus0: apid 8 (application processor)
cpu4: Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz, 2993.04 MHz, 06-9e-0d, patch
00000104
cpu4: smt 0, core 4, package 0
cpu5 at mainbus0: apid 10 (application processor)
cpu5: Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz, 2993.04 MHz, 06-9e-0d, patch
00000104
cpu5: smt 0, core 5, package 0
cpu6 at mainbus0: apid 12 (application processor)
cpu6: Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz, 2993.04 MHz, 06-9e-0d, patch
00000104
cpu6: smt 0, core 6, package 0
cpu7 at mainbus0: apid 14 (application processor)
cpu7: Intel(R) Core(TM) i7-9700 CPU @ 3.00GHz, 2993.04 MHz, 06-9e-0d, patch
00000104
cpu7: smt 0, core 7, package 0
ioapic0 at mainbus0: apid 2 pa 0xfec00000, version 20, 120 pins
acpimcfg0 at acpi0
acpimcfg0: addr 0xf0000000, bus 0-127
acpihpet0 at acpi0: 23999999 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PEG1)
acpiprt2 at acpi0: bus -1 (PEG2)
acpiprt3 at acpi0: bus -1 (RP01)
acpiprt4 at acpi0: bus -1 (RP02)
acpiprt5 at acpi0: bus -1 (RP03)
acpiprt6 at acpi0: bus -1 (RP04)
acpiprt7 at acpi0: bus -1 (RP05)
acpiprt8 at acpi0: bus -1 (RP06)
acpiprt9 at acpi0: bus -1 (RP07)
acpiprt10 at acpi0: bus -1 (RP08)
acpiprt11 at acpi0: bus -1 (RP09)
acpiprt12 at acpi0: bus -1 (RP10)
acpiprt13 at acpi0: bus -1 (RP11)
acpiprt14 at acpi0: bus -1 (RP12)
acpiprt15 at acpi0: bus -1 (RP13)
acpiprt16 at acpi0: bus -1 (RP14)
acpiprt17 at acpi0: bus -1 (RP15)
acpiprt18 at acpi0: bus -1 (RP16)
acpiprt19 at acpi0: bus -1 (RP18)
acpiprt20 at acpi0: bus -1 (RP19)
acpiprt21 at acpi0: bus -1 (RP20)
acpiprt22 at acpi0: bus -1 (RP21)
acpiprt23 at acpi0: bus -1 (RP22)
acpiprt24 at acpi0: bus -1 (RP23)
acpiprt25 at acpi0: bus -1 (RP24)
acpiprt26 at acpi0: bus -1 (PEG0)
acpiprt27 at acpi0: bus 1 (RP17)
"PNP0C14" at acpi0 not configured
acpipci0 at acpi0 PCI0: 0x00000010 0x00000011 0x00000000
com0 at acpi0 UAR1 addr 0x3f8/0x8 irq 4: ns16550a, 16 byte fifo
acpicmos0 at acpi0
pchgpio0 at acpi0 GPI0 addr 0xfd6e0000/0x10000 0xfd6d0000/0x10000
0xfd6b0000/0x10000 0xfd6a0000/0x10000 irq 14, 384 pins
"CYP0004" at acpi0 not configured
"PNP0C14" at acpi0 not configured
acpibtn0 at acpi0: SLPB
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
intelpmc0 at acpi0: PEPD
state 0: 0x7f:1:2:0x00:0x0000000000000060
counter: 0x7f:64:0:0x00:0x0000000000000632
frequency: 0
state 1: 0x7f:1:2:0x00:0x0000000000000060
counter: 0x00:32:0:0x03:0x00000000fe00193c
frequency: 9580
acpibtn1 at acpi0: PWRB
tpm0 at acpi0 TPM_ 2.0 (TIS) addr 0xfed40000/0x5000, device 0x00fc1050 rev
0x1
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C14" at acpi0 not configured
"PNP0C0B" at acpi0 not configured
"PNP0C0B" at acpi0 not configured
"PNP0C0B" at acpi0 not configured
"PNP0C0B" at acpi0 not configured
"PNP0C0B" at acpi0 not configured
acpipwrres0 at acpi0: USBC, resource for XDCI
acpipwrres1 at acpi0: V0PR
acpipwrres2 at acpi0: V1PR
acpipwrres3 at acpi0: V2PR
acpipwrres4 at acpi0: WRST
acpicpu0 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu1 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu2 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu3 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu4 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu5 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu6 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpicpu7 at acpi0: C3(200@1034 mwait.1@0x60), C2(200@151 mwait.1@0x33),
C1(1000@1 mwait.1), PSS
acpipwrres5 at acpi0: FN00, resource for FAN0
acpipwrres6 at acpi0: FN01, resource for FAN1
acpipwrres7 at acpi0: FN02, resource for FAN2
acpipwrres8 at acpi0: FN03, resource for FAN3
acpipwrres9 at acpi0: FN04, resource for FAN4
acpitz0 at acpi0
acpitz0: critical temperature is 119 degC
acpipwrres10 at acpi0: PIN_
acpivideo0 at acpi0: GFX0
acpivout0 at acpivideo0: DD1F
cpu0: Enhanced SpeedStep 2993 MHz: speeds: 3001, 3000, 2800, 2700, 2500,
2400, 2200, 2100, 1900, 1700, 1600, 1400, 1300, 1100, 1000, 800 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "Intel Core 8G Host" rev 0x0d
inteldrm0 at pci0 dev 2 function 0 "Intel UHD Graphics 630" rev 0x02
drm0 at inteldrm0
inteldrm0: msi, COFFEELAKE, gen 9
"Intel Core GMM" rev 0x00 at pci0 dev 8 function 0 not configured
pchtemp0 at pci0 dev 18 function 0 "Intel 300 Series Thermal" rev 0x10
xhci0 at pci0 dev 20 function 0 "Intel 300 Series xHCI" rev 0x10: msi, xHCI
1.10
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Intel xHCI root hub" rev
3.00/1.00 addr 1
"Intel 300 Series Shared SRAM" rev 0x10 at pci0 dev 20 function 2 not
configured
dwiic0 at pci0 dev 21 function 0 "Intel 300 Series I2C" rev 0x10: apic 2
int 16
iic0 at dwiic0
"Intel 300 Series HECI" rev 0x10 at pci0 dev 22 function 0 not configured
pciide0 at pci0 dev 23 function 0 "Intel 82801H RAID" rev 0x10: DMA,
channel 0 wired to native-PCI, channel 1 wired to native-PCI
pciide0: using apic 2 int 22 for native-PCI interrupt
ppb0 at pci0 dev 27 function 0 "Intel 300 Series PCIE" rev 0xf0: msi
pci1 at ppb0 bus 1
nvme0 at pci1 dev 0 function 0 "SK hynix Gold P31" rev 0x00: msix, NVMe 1.3
nvme0: SKHynix_HFS256GDE9X081N, firmware 41730C20, serial CYB7N04851500823U
scsibus1 at nvme0: 2 targets, initiator 0
sd0 at scsibus1 targ 1 lun 0: <NVMe, SKHynix_HFS256GD, 4173>
sd0: 244198MB, 512 bytes/sector, 500118192 sectors
pcib0 at pci0 dev 31 function 0 "Intel Q370 LPC" rev 0x10
azalia0 at pci0 dev 31 function 3 "Intel 300 Series cAVS" rev 0x10: msi
azalia0: codecs: Realtek ALC255, Intel/0x280b, using Realtek ALC255
audio0 at azalia0
ichiic0 at pci0 dev 31 function 4 "Intel 300 Series SMBus" rev 0x10: apic 2
int 21
iic1 at ichiic0
spdmem0 at iic1 addr 0x51: 16GB DDR4 SDRAM PC4-21300
spdmem1 at iic1 addr 0x53: 16GB DDR4 SDRAM PC4-21300
"Intel 300 Series SPI" rev 0x10 at pci0 dev 31 function 5 not configured
em0 at pci0 dev 31 function 6 "Intel I219-LM" rev 0x10: msi, address
c8:f7:50:fd:52:4c
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
pcppi0 at isa0 port 0x61
spkr0 at pcppi0
vmm0 at mainbus0: VMX/EPT
efifb at mainbus0 not configured
uhidev0 at uhub0 port 3 configuration 1 interface 0 "Das Keyboard Das
Keyboard P13" rev 1.10/1.15 addr 2
uhidev0: iclass 3/1
ukbd0 at uhidev0: 8 variable keys, 6 key codes
wskbd1 at ukbd0 mux 1
uhidev1 at uhub0 port 3 configuration 1 interface 1 "Das Keyboard Das
Keyboard P13" rev 1.10/1.15 addr 2
uhidev1: iclass 3/0, 5 report ids
ums0 at uhidev1 reportid 1: 5 buttons, Z and W dir
wsmouse0 at ums0 mux 0
uhid0 at uhidev1 reportid 2: input=1, output=0, feature=0
ucc0 at uhidev1 reportid 3: 2048 usages, 20 keys, array
wskbd2 at ucc0 mux 1
uhid1 at uhidev1 reportid 4: input=3, output=0, feature=0
ukbd1 at uhidev1 reportid 5: 8 variable keys, 6 key codes
wskbd3 at ukbd1 mux 1
uhidev2 at uhub0 port 3 configuration 1 interface 2 "Das Keyboard Das
Keyboard P13" rev 1.10/1.15 addr 2
uhidev2: iclass 3/0
uhid2 at uhidev2: input=64, output=64, feature=8
uhidev3 at uhub0 port 5 configuration 1 interface 0 "Kensington Kensington
Expert Mouse" rev 1.10/2.01 addr 3
uhidev3: iclass 3/1
ums1 at uhidev3: 4 buttons, Z dir
wsmouse1 at ums1 mux 0
ugen0 at uhub0 port 10 "Canon CanoScan" rev 2.00/7.04 addr 4
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
softraid0: sd1 was not shutdown properly
sd1 at scsibus3 targ 1 lun 0: <OPENBSD, SR CRYPTO, 006>
sd1: 243938MB, 512 bytes/sector, 499585087 sectors
root on sd1a (574b33688bd2d8cb.a) swap on sd1b dump on sd1b
WARNING: / was not properly unmounted
inteldrm0: 2560x1440, 32bpp
wsdisplay0 at inteldrm0 mux 1: console (std, vt100 emulation), using wskbd0
wskbd1: connecting to wsdisplay0
wskbd2: connecting to wsdisplay0
wskbd3: connecting to wsdisplay0
wsdisplay0: screen 1-5 added (std, vt100 emulation)
usbdevs:
Controller /dev/usb0:
addr 01: 8086:0000 Intel, xHCI root hub
super speed, self powered, config 1, rev 1.00
driver: uhub0
addr 02: 24f0:0105 Das Keyboard, Das Keyboard P13
full speed, power 100 mA, config 1, rev 1.15
driver: uhidev0
driver: uhidev1
driver: uhidev2
addr 03: 047d:1020 Kensington, Kensington Expert Mouse
low speed, power 100 mA, config 1, rev 2.01
driver: uhidev3
addr 04: 04a9:190f Canon, CanoScan
high speed, power 500 mA, config 1, rev 7.04
driver: ugen0
