Panic: double panic and "IPv4 address: "a.b.c.d" is not on the
network" flood in current
Bartosz Stec
admin at kkip.pl
Wed Aug 26 12:43:11 UTC 2009
I've just been forced to rollback from 9-CURRENT kernel to 8-BETA2
kernel due to panics like this:
Fatal double fault:
eip = 0x808ddcec
esp = 0xc7977fc0
ebp = 0xc7978038
Dump header from device /dev/ad0s1b
Architecture: i386
Architecture Version: 2
Dump Length: 446615552B (425 MB)
Blocksize: 512
Dumptime: Wed Aug 26 12:13:22 2009
Hostname: serwer.obsysa.net
Magic: FreeBSD Kernel Dump
Version String: FreeBSD 9.0-CURRENT #0: Mon Aug 24 10:45:04 CEST 2009
ncpnc at serwer.obsysa.net:/usr/obj/usr/src/sys/ATHLON9
Panic String: double fault
Dump Parity: 4040556634
Bounds: 11
Dump Status: good
Panic seems to be ZFS (or general FS) related, as it happens with heavy
IO, like during scrub or csup.
My kernel was built without debugging options so here's what I could
provide:
dmesg.boot (from 8-BETA2):
http://obsysa.net/bsd/dmesg.boot
kernel config:
http://obsysa.net/bsd/ATHLON9
vmcore (111MB!):
http://obsysa.net/bsd/vmcore.11.bz2
I also noticed dmesg flood with messages like this:
IPv4 address: "78.8.144.1" is not on the network
I have tun device which is used to connect to ADSL line via PPPoE:
tun0: flags=8051<UP,POINTOPOINT,RUNNING,MULTICAST> metric 0 mtu 1492
inet 78.8.144.74 --> 78.8.144.1 netmask 0xffffffff
Opened by PID 443
So I guess it's PPP issue, and seems to be harmless for now...
--
Bartosz Stec
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