Date: Mon, 26 May 2008 13:04:19 +0200 From: Marko Zec <zec@icir.org> To: Kris Kennaway <kris@freebsd.org> Cc: "Bjoern A. Zeeb" <bz@freebsd.org>, Julian Elischer <julian@elischer.org>, freebsd-virtualization@freebsd.org Subject: Re: vimage kernel broken Message-ID: <200805261304.20497.zec@icir.org> In-Reply-To: <48388496.8090707@FreeBSD.org> References: <483834AD.9050208@FreeBSD.org> <BAB6366D-8070-4853-8A4E-B5A95DBF8142@elischer.org> <48388496.8090707@FreeBSD.org>
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On Saturday 24 May 2008 23:11:50 Kris Kennaway wrote:
> Julian Elischer wrote:
> > On May 24, 2008, at 8:30 AM, Kris Kennaway wrote:
> >> I tried to boot a kernel taken from the vimage p4 branch, but it
> >> panics when starting lockd during multiuser boot:
> >
> > this is believable.
> > Particularly as I see you are using IPv6 and I don't have IPv6 test
> > facilities.
> >
> > nlm? hmm what were you doing?
>
> As mentioned, just booting the system with rpc.lockd enabled in
> rc.conf. A kernel with IPv6 compiled in is all that's needed.
Hi,
I can't reproduce this with the latest p4 / vimage sources:
tca51% uname -a
FreeBSD tca51.tel.fer.hr 8.0-CURRENT FreeBSD 8.0-CURRENT #0: Mon May 26
11:32:09 CEST 2008
marko@tca51.tel.fer.hr:/u/marko/p4/vimage/src/sys/i386/compile/VIMAGE
i386
tca51% ifconfig
bge0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu
1500
options=9b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM>
ether 00:11:25:3b:89:76
inet6 fe80::211:25ff:fe3b:8976%bge0 prefixlen 64 scopeid 0x2
inet 192.168.200.51 netmask 0xffffff00 broadcast 192.168.200.255
inet6 a:2::51 prefixlen 64
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
inet6 ::1 prefixlen 128
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x3
inet 127.0.0.1 netmask 0xff000000
tca51% cat /etc/rc.conf
keyrate="fast"
moused_enable="YES"
ifconfig_bge0="inet 192.168.200.51/24"
hostname="tca51.tel.fer.hr"
sshd_enable="YES"
sendmail_enable="NONE"
syslogd_flags="-ss"
ipv6_enable="YES"
ipv6_network_interfaces="auto"
ipv6_defaultrouter="NO"
ipv6_ifconfig_bge0="a:2::51 prefixlen 64"
rpcbind_enable="YES"
nfs_client_enable="YES"
nfs_server_enable="YES"
rpc_statd_enable="YES"
rpc_lockd_enable="YES"
tca51% cat /etc/exports
/usr -ro
tca51% showmount
Hosts on localhost:
a:2::101
tca51% ps -ax|fgrep rpc
581 ?? Is 0:00.03 /usr/sbin/rpcbind
639 ?? Ss 0:01.57 /usr/sbin/rpc.statd
645 ?? Ss 0:00.01 rpc.lockd: server (rpc.lockd)
850 p0 R+ 0:00.00 fgrep rpc
What is it that I'm missing to trigger this panic?
BTW capturing the output of "show pcpu" and "show vnets" from the KDB
prompt would be useful. In general, curvnet must point to a regular
vnet structure while executing any networking code, otherwise it must
be set to NULL.
Thanks,
Marko
> Kris
>
> >> Kris
> >>
> >> ----
> >> Starting lockd.
> >>
> >>
> >> Fatal trap 12: page fault while in kernel mode
> >> cpuid = 0; apic id = 00
> >> fault virtual address = 0x0
> >> fault code = supervisor read, page not present
> >> instruction pointer = 0x20:0xc08afb8e
> >> stack pointer = 0x28:0xc6f3f8a8
> >> frame pointer = 0x28:0xc6f3f8fc
> >> code segment = base 0x0, limit 0xfffff, type 0x1b
> >> = DPL 0, pres 1, def32 1, gran 1
> >> processor eflags = interrupt enabled, resume, IOPL = 0
> >> current process = 764 (rpc.lockd)
> >> [thread pid 764 tid 100047 ]
> >> Stopped at sa6_recoverscope+0x7e: movl 0(%eax),%edi
> >> db> wh
> >> Tracing pid 764 tid 100047 td 0xc71cbcc0
> >> sa6_recoverscope(c71e0c00,1c,2,0,c82c0c4c,...) at
> >> sa6_recoverscope+0x7e in6_sockaddr(0,c6f3f930,1f8,0,0,...) at
> >> in6_sockaddr+0x6d
> >> in6_getsockaddr(c833c318,c6f3f98c,c833c318,c6f3f9e8,c6f3f9a0,...)
> >> at in6_getsockaddr+0x89
> >> in6_mapped_sockaddr(c833c318,c6f3f98c,c71cbd64,c0afde50,c6f3f9a0,.
> >>..) at in6_mapped_sockaddr+0x5c
> >> __rpc_socket2sockinfo(c833c318,c6f3f9e8,c0c09db4,4,c0ad9548,...)
> >> at __rpc_socket2sockinfo+0x28
> >> clnt_dg_create(c833c318,c6f3faa4,186a0,4,0,...) at
> >> clnt_dg_create+0x3f nlm_get_rpc(c6f3fc04,1c,2,0,c7080800,...) at
> >> nlm_get_rpc+0xb8
> >> nlm_syscall(c71cbcc0,c6f3fcfc,10,c71cbcc0,c0b93370,...) at
> >> nlm_syscall+0x227
> >> syscall(c6f3fd38) at syscall+0x2a3
> >> Xint0x80_syscall() at Xint0x80_syscall+0x20
> >> --- syscall (154, FreeBSD ELF32, nlm_syscall), eip = 0x280e315b,
> >> esp = 0xbfbfedbc, ebp = 0xbfbfee88 ---
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