>Synopsis: panic on octeon when receiving l2tp connection >Category: kernel >Environment: System : OpenBSD 5.8 Details : OpenBSD 5.8-beta (GENERIC) #1: Sun Jun 28 20:14:14 CEST 2015 r...@erl-2.fritz.box:/usr/src/sys/arch/octeon/compile/GENERIC
Architecture: OpenBSD.octeon Machine : octeon >Description: I set up a l2tp/ipsec server on my edgerouter lite (July 1st 2015 snapshot). I can connect from Android 5.1.1 but when I connect from Windows 7 I get a kernel panic. It seems I can reproduce at will. Mon Jul 6 10:26:46 EDT 2015 OpenBSD/octeon (routeur.my.domain) (console) login: Trap cause = 4 Frame 0x980000041ffcf780 Trap PC 0xffffffff811794b8 RA 0xffffffff81179490 fault 0x9800000008d6a64b 0xffffffff811793f0 (0,0,9800000008d6a600,4c) ra 0xffffffff81179490 sp 0x980000041ffcf8d8, sz 0 0xffffffff811793f0 (0,0,9800000008d6a600,4c) ra 0x0 sp 0x980000041ffcf8d8, sz 0 User-level: pid 16889 stopped on non ddb fault Stopped at 0xffffffff811794b8: bnezl s5,0xffffffff81179420 0xffffffff811794bc: lhu v0,2(s5) ddb> show panic the kernel did not panic ddb> c panic: trap Stopped at 0xffffffff812722e4: jr ra 0xffffffff812722e8: nop RUN AT LEAST 'trace' AND 'ps' AND INCLUDE OUTPUT WHEN REPORTING THIS PANIC! DO NOT EVEN BOTHER REPORTING THIS WITHOUT INCLUDING THAT INFORMATION! ddb> show panic trap ddb> trace 0xffffffff812722e0 (3f59ae901229d78d,9001070000000200,200,100000c00000001) ra 0 xffffffff810b2d80 sp 0x980000041ffcf608, sz 0 0xffffffff810b2c34 (3f59ae901229d78d,9001070000000200,200,100000c00000001) ra 0 x0 sp 0x980000041ffcf608, sz 0 User-level: pid 16889 ddb> ps PID PPID PGRP UID S FLAGS WAIT COMMAND 23365 1 23365 0 3 0x83 ttyin getty 9907 1 9907 0 3 0x80 poll cron 23446 15815 15815 95 3 0x90 kqread smtpd 2608 15815 15815 95 3 0x90 kqread smtpd 22764 15815 15815 95 3 0x90 kqread smtpd 9925 15815 15815 95 3 0x90 kqread smtpd 16573 15815 15815 95 3 0x90 kqread smtpd 8887 15815 15815 103 3 0x90 kqread smtpd 15815 1 15815 0 3 0x80 kqread smtpd 4996 21194 21194 77 3 0x90 poll dhcpd 21194 1 21194 77 3 0x90 poll dhcpd 6671 1 6671 0 3 0x80 select sshd 13072 10658 13072 0 3 0x80 netio npppd 10658 1 10658 82 3 0x90 kqread npppd 22730 16180 16180 68 3 0x90 select isakmpd 16180 1 16180 0 3 0x80 netio isakmpd 611 22801 20278 83 3 0x90 poll ntpd 22801 20278 20278 83 3 0x90 poll ntpd 20278 1 20278 0 3 0x80 poll ntpd 23196 1 23196 53 3 0x90 kqread unbound 11852 28842 28842 74 3 0x90 bpf pflogd 28842 1 28842 0 3 0x80 netio pflogd 1435 22924 22924 73 2 0x90 syslogd 22924 1 22924 0 3 0x80 netio syslogd 25754 1 25754 77 3 0x90 poll dhclient 22230 1 22230 0 3 0x80 poll dhclient 22249 0 0 0 3 0x14200 pgzero zerothread 29325 0 0 0 3 0x14200 aiodoned aiodoned 15154 0 0 0 3 0x14200 syncer update 24050 0 0 0 3 0x14200 cleaner cleaner 19213 0 0 0 3 0x14200 reaper reaper 9934 0 0 0 3 0x14200 pgdaemon pagedaemon *16889 0 0 0 7 0x14200 crypto 31830 0 0 0 3 0x14200 pftm pfpurge 15242 0 0 0 3 0x14200 usbtsk usbtask 15209 0 0 0 3 0x14200 usbatsk usbatsk 12639 0 0 0 3 0x14200 bored dwc2 18369 0 0 0 3 0x14200 bored softnet 12695 0 0 0 3 0x14200 bored systqmp 5766 0 0 0 3 0x14200 bored systq 13631 0 0 0 3 0x40014200 idle0 1 0 1 0 3 0x82 wait init 0 -1 0 0 3 0x10200 scheduler swapper ddb> show registers at 0xffffffff81360000 v0 0x1 v1 0x1 a0 0x3f59ae901229d78d a1 0x9001070000000200 a2 0x200 a3 0x100000c00000001 a4 0x3fd8 a5 0xffffffff8137e6b0 a6 0 a7 0xc1331986b8c60620 t0 0xffffffff813eed60 t1 0 t2 0 t3 0xffffffff8b5a9aba s0 0x980000041ffcf640 s1 0xffffffff812fe340 s2 0x100 s3 0xffffffff813ee010 s4 0x14 s5 0x980000000fee9758 s6 0x4 s7 0x9 t8 0xffffffffa99db6d1 t9 0xffffffff812c9518 k0 0x980000000fee9758 k1 0x4 gp 0xffffffff8135f950 sp 0x980000041ffcf608 s8 0 ra 0xffffffff810b2d80 sr 0x500087e2 lo 0x1f4 hi 0 bad 0x9800000008d6a64b cs 0x40008424 pc 0xffffffff812722e4 0xffffffff812722e4: jr ra 0xffffffff812722e8: nop >How-To-Repeat: ipsec.conf: ext_if=cnmac0 key="<mypsk>" ike passive esp transport \ proto udp from $ext_if to any port 1701 \ main auth "hmac-sha1" enc "3des" group modp1024 \ quick auth "hmac-sha1" enc "aes" \ psk $key pf.conf: pass in on egress proto {ah,esp} pass in quick on egress proto udp from any to (egress) port {500, 4500, 1701} pass on enc0 from any to any keep state (if-bound) pass on pppx0 from any to any keep state (if-bound) I connect from Windows 7 with the standard config except I choose l2tp and I set the psk. dmesg: OpenBSD 5.8-beta (GENERIC) #1: Sun Jun 28 20:14:14 CEST 2015 r...@erl-2.fritz.box:/usr/src/sys/arch/octeon/compile/GENERIC real mem = 515932160 (492MB) avail mem = 511524864 (487MB) warning: no entropy supplied by boot loader mainbus0 at root cpu0 at mainbus0: Cavium OCTEON CPU rev 0.1 500 MHz, Software FP emulation cpu0: cache L1-I 32KB 4 way D 8KB 64 way, L2 128KB 8 way clock0 at mainbus0: int 5 iobus0 at mainbus0 octcf at iobus0 base 0x1d000800 irq 0 not configured pcibus at iobus0 irq 0 not configured cn30xxgmx0 at iobus0 base 0x1180008000000 irq 48 cnmac0 at cn30xxgmx0: RGMII, address 04:18:d6:a1:6d:fe atphy0 at cnmac0 phy 7: F1 10/100/1000 PHY, rev. 2 cnmac1 at cn30xxgmx0: RGMII, address 04:18:d6:a1:6d:ff atphy1 at cnmac1 phy 6: F1 10/100/1000 PHY, rev. 2 cnmac2 at cn30xxgmx0: RGMII, address 04:18:d6:a1:6e:00 atphy2 at cnmac2 phy 5: F1 10/100/1000 PHY, rev. 2 octrng0 at iobus0 base 0x1400000000000 irq 0 octhci at iobus0 irq 56 not configured dwctwo0 at iobus0 base 0x1180068000000 irq 56usb0 at dwctwo0: USB revision 2.0 uhub0 at usb0 " DWC2 root hub" rev 2.00/1.00 addr 1 uartbus0 at mainbus0 com0 at uartbus0 base 0x1180000000800 irq 34: ns16550, no working fifo com0: console com1 at uartbus0 base 0x1180000000c00 irq 35: ns16550, no working fifo /dev/ksyms: Symbol table not valid. umass0 at uhub0 port 1 configuration 1 interface 0 " USB DISK 2.0" rev 2.00/1.00 addr 2 umass0: using SCSI over Bulk-Only scsibus0 at umass0: 2 targets, initiator 0 sd0 at scsibus0 targ 1 lun 0: <, USB DISK 2.0, PMAP> SCSI4 0/direct removable serial.13fe41004983C3C44F82 sd0: 3824MB, 512 bytes/sector, 7831552 sectors vscsi0 at root scsibus1 at vscsi0: 256 targets softraid0 at root scsibus2 at softraid0: 256 targets boot device: sd0 root on sd0a (d2254a60106318f1.a) swap on sd0b dump on sd0b WARNING: / was not properly unmounted WARNING: No TOD clock, believing file system. WARNING: CHECK AND RESET THE DATE! cnmac0: a reception error occured, the packet was dropped (error code = 13) usbdevs: Controller /dev/usb0: addr 1: high speed, self powered, config 1, DWC2 root hub(0x0000), (0x0000), rev 1.00 port 1 addr 2: high speed, power 200 mA, config 1, USB DISK 2.0(0x4100), (0x13fe), rev 1.00, iSerialNumber 07084983C3C44F82