>Synopsis: switchd segfaults at random intervals
>Category: system
>Environment:
System : OpenBSD 6.4
Details : OpenBSD 6.4-stable (CUSTOM) #1: Sun Mar 3 07:52:19 CET 2019
[email protected]:/usr/src/sys/arch/amd64/compile/CUSTOM
Architecture: OpenBSD.amd64
Machine : amd64
>Description:
I've been running an APU2 as my home router.
Unfortunately switchd crashes at seemingly random intervals causing the
interface to stop forwarding packets.
Switchd does not log anything related to the crash to /var/log/daemon so I
recorded a coredump according to
the bgp example in sysctl(8).
The only thing custom about the kernel I'm running is 'option
PPPOE_TERM_UNKNOWN_SESSIONS' and I can
confirm that this also happens with the default kernel.
gdb:
(gdb) bt full
#0 0x000000334fc35af0 in _libc_SHA1Pad (context=0x34336bb5e8) at
/usr/src/lib/libc/hash/sha1.c:132
finalcount = 0x7f7ffffc78b8 "\222?8s7\031P\0257\r"
i = Cannot access memory at address 0x7
(gdb) where
#0 0x000000334fc35af0 in _libc_SHA1Pad (context=0x34336bb5e8) at
/usr/src/lib/libc/hash/sha1.c:132
#1 0x0000003422e1c350 in ibuf_add (buf=0x338ead7680, data=0x0, len=1494) at
/usr/src/lib/libutil/imsg-buffer.c:97
#2 0x0000003422e1aa2e in imsg_add (msg=0x338ead7680, data=Variable "data" is
not available.
) at /usr/src/lib/libutil/imsg.c:240
#3 0x000000313390ab56 in ?? () from /usr/sbin/switchd
#4 0x000000313390cb32 in ?? () from /usr/sbin/switchd
#5 0x0000003133909672 in ?? () from /usr/sbin/switchd
#6 0x0000003133911625 in ?? () from /usr/sbin/switchd
#7 0x0000003133911157 in ?? () from /usr/sbin/switchd
#8 0x00000034308dbbbd in event_base_loop (base=0x33c2016000, flags=0) at
/usr/src/lib/libevent/event.c:350
#9 0x0000003133903a98 in ?? () from /usr/sbin/switchd
#10 0x0000003133902a8b in ?? () from /usr/sbin/switchd
#11 0x0000003133907660 in ?? () from /usr/sbin/switchd
#12 0x0000003133900b46 in ?? () from /usr/sbin/switchd
#13 0x0000000000000000 in ?? ()
/etc/switchd.conf:
listen on 127.0.0.1 tls port 6633
device "/dev/switch0"
/etc/hostname.switch0:
addlocal vether0
add em0
add em1
up
/etc/hostname.vether0:
inet 10.0.1.1 255.255.240.0
inet alias 10.0.1.2 255.255.240.0
up
dmesg:
OpenBSD 6.4-stable (CUSTOM) #1: Sun Mar 3 07:52:19 CET 2019
[email protected]:/usr/src/sys/arch/amd64/compile/CUSTOM
real mem = 4261076992 (4063MB)
avail mem = 4122771456 (3931MB)
mpath0 at root
scsibus0 at mpath0: 256 targets
mainbus0 at root
bios0 at mainbus0: SMBIOS rev. 2.7 @ 0xdffb7020 (7 entries)
bios0: vendor coreboot version "88a4f96" date 03/11/2016
bios0: PC Engines apu2
acpi0 at bios0: rev 2
acpi0: sleep states S0 S1 S2 S3 S4 S5
acpi0: tables DSDT FACP SSDT APIC HEST SSDT SSDT HPET
acpi0: wakeup devices PWRB(S4) PBR4(S4) PBR5(S4) PBR6(S4) PBR7(S4) PBR8(S4)
UOH1(S3) UOH3(S3) UOH5(S3) XHC0(S4)
acpitimer0 at acpi0: 3579545 Hz, 32 bits
acpimadt0 at acpi0 addr 0xfee00000: PC-AT compat
cpu0 at mainbus0: apid 0 (boot processor)
cpu0: AMD GX-412TC SOC, 998.26 MHz, 16-30-01
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,PCLMUL,MWAIT,SSSE3,CX16,SSE4.1,SSE4.2,MOVBE,POPCNT,AES,XSAVE,AVX,F16C,NXE,MMXX,FFXSR,PAGE1GB,RDTSCP,LONG,LAHF,CMPLEG,SVM,EAPICSP,AMCR8,ABM,SSE4A,MASSE,3DNOWP,OSVW,IBS,SKINIT,TOPEXT,DBKP,PERFTSC,PCTRL3,ITSC,BMI1,XSAVEOPT
cpu0: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 2MB 64b/line
16-way L2 cache
cpu0: ITLB 32 4KB entries fully associative, 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 99MHz
cpu0: mwait min=64, max=64, IBE
cpu at mainbus0: not configured
cpu at mainbus0: not configured
cpu at mainbus0: not configured
ioapic0 at mainbus0: apid 4 pa 0xfec00000, version 21, 24 pins
ioapic1 at mainbus0: apid 5 pa 0xfec20000, version 21, 32 pins, remapped
acpihpet0 at acpi0: 14318180 Hz
acpiprt0 at acpi0: bus 0 (PCI0)
acpiprt1 at acpi0: bus -1 (PBR4)
acpiprt2 at acpi0: bus 1 (PBR5)
acpiprt3 at acpi0: bus 2 (PBR6)
acpiprt4 at acpi0: bus 3 (PBR7)
acpiprt5 at acpi0: bus -1 (PBR8)
acpicpu0 at acpi0: C2(0@400 io@0x1771), C1(@1 halt!), PSS
acpibtn0 at acpi0: PWRB
acpicmos0 at acpi0
cpu0: 998 MHz: speeds: 1000 800 600 MHz
pci0 at mainbus0 bus 0
pchb0 at pci0 dev 0 function 0 "AMD AMD64 16h Root Complex" rev 0x00
pchb1 at pci0 dev 2 function 0 "AMD AMD64 16h Host" rev 0x00
ppb0 at pci0 dev 2 function 2 "AMD AMD64 16h PCIE" rev 0x00: msi
pci1 at ppb0 bus 1
em0 at pci1 dev 0 function 0 "Intel I210" rev 0x03: msi, address
00:0d:b9:46:2b:38
ppb1 at pci0 dev 2 function 3 "AMD AMD64 16h PCIE" rev 0x00: msi
pci2 at ppb1 bus 2
em1 at pci2 dev 0 function 0 "Intel I210" rev 0x03: msi, address
00:0d:b9:46:2b:39
ppb2 at pci0 dev 2 function 4 "AMD AMD64 16h PCIE" rev 0x00: msi
pci3 at ppb2 bus 3
em2 at pci3 dev 0 function 0 "Intel I210" rev 0x03: msi, address
00:0d:b9:46:2b:3a
ccp0 at pci0 dev 8 function 0 "AMD Cryptographic Co-processor v3" rev 0x00
xhci0 at pci0 dev 16 function 0 "AMD Bolton xHCI" rev 0x11: msi, xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "AMD xHCI root hub" rev 3.00/1.00
addr 1
ahci0 at pci0 dev 17 function 0 "AMD Hudson-2 SATA" rev 0x40: apic 4 int 19,
AHCI 1.3
ahci0: port 0: 6.0Gb/s
scsibus1 at ahci0: 32 targets
sd0 at scsibus1 targ 0 lun 0: <ATA, SATA SSD, SBFM> SCSI3 0/direct fixed
naa.5000000000000000
sd0: 15272MB, 512 bytes/sector, 31277232 sectors, thin
ehci0 at pci0 dev 19 function 0 "AMD Hudson-2 USB2" rev 0x39: apic 4 int 18
usb1 at ehci0: USB revision 2.0
uhub1 at usb1 configuration 1 interface 0 "AMD EHCI root hub" rev 2.00/1.00
addr 1
piixpm0 at pci0 dev 20 function 0 "AMD Hudson-2 SMBus" rev 0x42: SMBus disabled
pcib0 at pci0 dev 20 function 3 "AMD Hudson-2 LPC" rev 0x11
sdhc0 at pci0 dev 20 function 7 "AMD Bolton SD/MMC" rev 0x01: apic 4 int 16
sdhc0: SDHC 2.0, 63 MHz base clock
sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed, dma
pchb2 at pci0 dev 24 function 0 "AMD AMD64 16h Link Cfg" rev 0x00
pchb3 at pci0 dev 24 function 1 "AMD AMD64 16h Address Map" rev 0x00
pchb4 at pci0 dev 24 function 2 "AMD AMD64 16h DRAM Cfg" rev 0x00
km0 at pci0 dev 24 function 3 "AMD AMD64 16h Misc Cfg" rev 0x00
pchb5 at pci0 dev 24 function 4 "AMD AMD64 16h CPU Power" rev 0x00
pchb6 at pci0 dev 24 function 5 "AMD AMD64 16h Misc Cfg" rev 0x00
isa0 at pcib0
isadma0 at isa0
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
vmm0 at mainbus0: SVM/RVI
uhub2 at uhub1 port 1 configuration 1 interface 0 "Advanced Micro Devices
product 0x7900" rev 2.00/0.18 addr 2
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (c13267e44c837452.a) swap on sd0b dump on sd0b
WARNING: / was not properly unmounted
Process (pid 1) got signal 31
usbdevs:
Controller /dev/usb0:
addr 01: 1022:0000 AMD, xHCI root hub
super speed, self powered, config 1, rev 1.00
driver: uhub0
Controller /dev/usb1:
addr 01: 1022:0000 AMD, EHCI root hub
high speed, self powered, config 1, rev 1.00
driver: uhub1
addr 02: 0438:7900 Advanced Micro Devices, product 0x7900
high speed, self powered, config 1, rev 0.18
driver: uhub2
