Hi, I've recorded traffic that was sent from the git server before crashes. Most likely panic is caused by sending a large packet (1514 bytes) by the git server to the remote vpn client. I can privately share the traffic dumps.
пн, 29 нояб. 2021 г. в 18:30, <[email protected]>: > >Synopsis: Kernel panic triggered on a certain type of IPv6 traffic > >Category: kernel > >Environment: > System : OpenBSD 7.0 > Details : OpenBSD 7.0 (GENERIC.MP) #1: Fri Oct 29 12:04:07 > MDT 2021 > [email protected]: > /usr/src/sys/arch/amd64/compile/GENERIC.MP > > Architecture: OpenBSD.amd64 > Machine : amd64 > >Description: > I have an OpenBSD router that provides IPv6 connectivity for a > remote VPN client. > The router has a gif interface that holds IPv6 network (/48) and > passes all IPv6 traffic from and to an IPv6 provider through an IPv4 > connection (the default IPv6 route). > The router also routes iked VPN traffic from remote clients > through IPv4 connection. The remote VPN client has subnet /64 of IPv6 net > assigned to the gif interface. > The problem is that under some unknown conditions the router > crashes with the error below. > > panic: kernel diagnostic assertion "!ISSET(rt->rt_flags, RTF_UP)" failed: > file " > /usr/src/sys/net/route.c", line 506 > Starting stack trace... > panic(ffffffff81e5b027) at panic+0x12c > __assert(ffffffff81ec493e,ffffffff81e61332,1fa,ffffffff81ed0f05) at > __assert+0x25 > rtfree(fffffd810dc68698) at rtfree+0x298 > ip6_forward(fffffd80cf80ab00,fffffd810dc68698,0) at ip6_forward+0x118 > ip6_input_if(ffff8000225ce658,ffff8000225ce664,29,0,ffff800000679038) at > ip6_input_if+0x8d > ipv6_input(ffff800000679038,fffffd80cf80ab00) at ipv6_input+0x39 > gif_input(ffff8000225ce710,ffff8000225ce938,ffff8000225ce944,29,0,0) at > gif_input+0x231 > in_gif_input(ffff8000225ce938,ffff8000225ce944,29,2) at in_gif_input+0x5b > ip_deliver(ffff8000225ce938,ffff8000225ce944,29,2) at ip_deliver+0x103 > ip_ours(ffff8000225ce938,ffff8000225ce944,ac3,0) at ip_ours+0x31d > ip_input_if(ffff8000225ce938,ffff8000225ce944,4,0,ffff800000098048) at > ip_input_if+0x19d > ipv4_input(ffff800000098048,fffffd80cf80ab00) at ipv4_input+0x39 > ether_input(ffff800000098048,fffffd80cf80ab00) at ether_input+0x39f > if_input_process(ffff800000098048,ffff8000225cea28) at > if_input_process+0x6f > ifiq_process(ffff800000098458) at ifiq_process+0x69 > taskq_thread(ffff80000002b080) at taskq_thread+0x81 > end trace frame: 0x0, count: 241 > End of stack trace. > syncing disks...13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 13 > 13 giving up > > The problem exists since at least version 6.8. > > >How-To-Repeat: > The cause is unknown. I was unable to record the traffic dump. But > I ran into it the last time when trying to pull changes from a git server > (over ssh). I tried to pull changes five times, but each pull ended in > kernel panic. > >Fix: > unknown > > > dmesg: > OpenBSD 7.0 (GENERIC.MP) #1: Fri Oct 29 12:04:07 MDT 2021 > [email protected]:/usr/src/sys/arch/amd64/compile/ > GENERIC.MP > real mem = 4259840000 (4062MB) > avail mem = 4114706432 (3924MB) > random: good seed from bootblocks > mpath0 at root > scsibus0 at mpath0: 256 targets > mainbus0 at root > bios0 at mainbus0: SMBIOS rev. 3.0 @ 0xcfe83040 (13 entries) > bios0: vendor coreboot version "v4.14.0.3" date 08/10/2021 > bios0: PC Engines apu4 > acpi0 at bios0: ACPI 6.0 > acpi0: sleep states S0 S1 S4 S5 > acpi0: tables DSDT FACP SSDT MCFG TPM2 APIC HEST SSDT SSDT DRTM HPET > acpi0: wakeup devices PBR4(S4) PBR5(S4) PBR6(S4) PBR7(S4) PBR8(S4) > UOH1(S3) UOH2(S3) UOH3(S3) UOH4(S3) UOH5(S3) UOH6(S3) XHC0(S4) > acpitimer0 at acpi0: 3579545 Hz, 32 bits > acpimcfg0 at acpi0 > acpimcfg0: addr 0xf8000000, bus 0-63 > 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 > cpu1 at mainbus0: apid 1 (application processor) > cpu1: AMD GX-412TC SOC, 998.14 MHz, 16-30-01 > 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,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 > cpu1: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 2MB > 64b/line 16-way L2 cache > cpu1: ITLB 32 4KB entries fully associative, 8 4MB entries fully > associative > cpu1: DTLB 40 4KB entries fully associative, 8 4MB entries fully > associative > cpu1: smt 0, core 1, package 0 > cpu2 at mainbus0: apid 2 (application processor) > cpu2: AMD GX-412TC SOC, 998.14 MHz, 16-30-01 > cpu2: > 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 > cpu2: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 2MB > 64b/line 16-way L2 cache > cpu2: ITLB 32 4KB entries fully associative, 8 4MB entries fully > associative > cpu2: DTLB 40 4KB entries fully associative, 8 4MB entries fully > associative > cpu2: smt 0, core 2, package 0 > cpu3 at mainbus0: apid 3 (application processor) > cpu3: AMD GX-412TC SOC, 998.14 MHz, 16-30-01 > cpu3: > 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 > cpu3: 32KB 64b/line 2-way I-cache, 32KB 64b/line 8-way D-cache, 2MB > 64b/line 16-way L2 cache > cpu3: ITLB 32 4KB entries fully associative, 8 4MB entries fully > associative > cpu3: DTLB 40 4KB entries fully associative, 8 4MB entries fully > associative > cpu3: smt 0, core 3, package 0 > ioapic0 at mainbus0: apid 4 pa 0xfec00000, version 21, 24 pins > ioapic1 at mainbus0: apid 5 pa 0xfec20000, version 21, 32 pins > acpihpet0 at acpi0: 14318180 Hz > acpiprt0 at acpi0: bus 0 (PCI0) > acpiprt1 at acpi0: bus 1 (PBR4) > acpiprt2 at acpi0: bus 2 (PBR5) > acpiprt3 at acpi0: bus 3 (PBR6) > acpiprt4 at acpi0: bus 4 (PBR7) > acpiprt5 at acpi0: bus -1 (PBR8) > acpipci0 at acpi0 PCI0: 0x00000000 0x00000011 0x00000001 > acpicmos0 at acpi0 > amdgpio0 at acpi0 GPIO uid 0 addr 0xfed81500/0x300 irq 7, 184 pins > "PRP0001" at acpi0 not configured > "PRP0001" at acpi0 not configured > "PRP0001" at acpi0 not configured > "PRP0001" at acpi0 not configured > "PRP0001" at acpi0 not configured > "PRP0001" at acpi0 not configured > "BOOT0000" at acpi0 not configured > acpicpu0 at acpi0: C2(0@400 io@0x1771), C1(@1 halt!), PSS > acpicpu1 at acpi0: C2(0@400 io@0x1771), C1(@1 halt!), PSS > acpicpu2 at acpi0: C2(0@400 io@0x1771), C1(@1 halt!), PSS > acpicpu3 at acpi0: C2(0@400 io@0x1771), C1(@1 halt!), PSS > acpitz0 at acpi0: critical temperature is 115 degC > cpu0: 998 MHz: speeds: 1000 800 600 MHz > pci0 at mainbus0 bus 0 > pchb0 at pci0 dev 0 function 0 "AMD 16h Root Complex" rev 0x00 > vendor "AMD", unknown product 0x1567 (class system subclass IOMMU, rev > 0x00) at pci0 dev 0 function 2 not configured > pchb1 at pci0 dev 2 function 0 "AMD 16h Host" rev 0x00 > ppb0 at pci0 dev 2 function 1 "AMD 16h PCIE" rev 0x00: msi > pci1 at ppb0 bus 1 > em0 at pci1 dev 0 function 0 "Intel I211" rev 0x03: msi, address > 00:0d:b9:4e:a1:70 > ppb1 at pci0 dev 2 function 2 "AMD 16h PCIE" rev 0x00: msi > pci2 at ppb1 bus 2 > em1 at pci2 dev 0 function 0 "Intel I211" rev 0x03: msi, address > 00:0d:b9:4e:a1:71 > ppb2 at pci0 dev 2 function 3 "AMD 16h PCIE" rev 0x00: msi > pci3 at ppb2 bus 3 > em2 at pci3 dev 0 function 0 "Intel I211" rev 0x03: msi, address > 00:0d:b9:4e:a1:72 > ppb3 at pci0 dev 2 function 4 "AMD 16h PCIE" rev 0x00: msi > pci4 at ppb3 bus 4 > em3 at pci4 dev 0 function 0 "Intel I211" rev 0x03: msi, address > 00:0d:b9:4e:a1:73 > ccp0 at pci0 dev 8 function 0 "AMD 16h Crypto" 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 > ahci0: port 1: 6.0Gb/s > scsibus1 at ahci0: 32 targets > sd0 at scsibus1 targ 0 lun 0: <ATA, MT-512, S050> > t10.ATA_MT-512_9100910803195_ > sd0: 488386MB, 512 bytes/sector, 1000215216 sectors, thin > sd1 at scsibus1 targ 1 lun 0: <ATA, WDC WD10JFCX-68N, 82.0> > naa.50014ee0af45033d > sd1: 953869MB, 512 bytes/sector, 1953525168 sectors > 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: SMI > iic0 at piixpm0 > iic1 at piixpm0 > iic1: addr 0x4c 3e=00 48=00 4a=00 4e=00 fc=00 fe=00 words 00=ffff 01=ffff > 02=ffff 03=ffff 04=ffff 05=ffff 06=ffff 07=ffff > 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, 50 MHz base clock > sdmmc0 at sdhc0: 4-bit, sd high-speed, mmc high-speed, dma > pchb2 at pci0 dev 24 function 0 "AMD 16h Link Cfg" rev 0x00 > pchb3 at pci0 dev 24 function 1 "AMD 16h Address Map" rev 0x00 > pchb4 at pci0 dev 24 function 2 "AMD 16h DRAM Cfg" rev 0x00 > km0 at pci0 dev 24 function 3 "AMD 16h Misc Cfg" rev 0x00 > pchb5 at pci0 dev 24 function 4 "AMD 16h CPU Power" rev 0x00 > pchb6 at pci0 dev 24 function 5 "AMD 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 > com2 at isa0 port 0x3e8/8 irq 5: ns16550a, 16 byte fifo > pcppi0 at isa0 port 0x61 > spkr0 at pcppi0 > lpt0 at isa0 port 0x378/4 irq 7 > intr_establish: pic ioapic0 pin 7: can't share type 3 with 2 > wbsio0 at isa0 port 0x2e/2: NCT5104D rev 0x53 > vmm0 at mainbus0: SVM/RVI > dt: 445 probes > uhub2 at uhub1 port 1 configuration 1 interface 0 "Advanced Micro Devices > Hub" 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 (01c1c2f37c512b1b.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, Hub > high speed, self powered, config 1, rev 0.18 > driver: uhub2 > -- Антон Касимов / Anton Kasimov
