Date: Tue, 30 Apr 2013 17:19:08 -0400 From: Glen Barber <gjb@FreeBSD.org> To: John Baldwin <jhb@freebsd.org> Cc: Ian FREISLICH <ianf@clue.co.za>, freebsd-current@freebsd.org Subject: Re: panic: in_pcblookup_local (?) Message-ID: <20130430211908.GB1621@glenbarber.us> In-Reply-To: <201304301653.13845.jhb@freebsd.org> References: <E1UW0K5-000P7H-36@clue.co.za> <201304291224.06328.jhb@freebsd.org> <20130430003552.GC1588@glenbarber.us> <201304301653.13845.jhb@freebsd.org>
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On Tue, Apr 30, 2013 at 04:53:13PM -0400, John Baldwin wrote:
> Try 'p phd' to start. INP_PCBPORTHASH is a macro, so you will
> have to do it by hand:
>=20
> 'p pcbinfo->ipi_porthashbase[lport & pcbinfo->ipi_porthashmask]'
>=20
> (That should be what 'porthash' is.)
>=20
Thanks for the pointers. (Hah!)
Hopefully this is the info you are looking for:
Script started on Tue Apr 30 17:16:07 2013
root@orion:/usr/obj/usr/src/sys/ORION # kgdb ./kernel.debug /var/crash/vmco=
re.4
[...]
#0 doadump (textdump=3D<value optimized out>) at pcpu.h:231
231 __asm("movq %%gs:%1,%0" : "=3Dr" (td)
(kgdb) frame 6
#6 0xffffffff80736cec in in_pcblookup_local (pcbinfo=3D0xffffffff80dc9180,=
laddr=3D
{s_addr =3D 50374848}, lport=3D339, lookupflags=3D1, cred=3D0xfffffe0=
16cdad100)
at /usr/src/sys/netinet/in_pcb.c:1438
1438 LIST_FOREACH(phd, porthash, phd_hash) {
(kgdb) p phd
$1 =3D (struct inpcbport *) 0x9e17b100fffffe00
(kgdb) p pcbinfo->ipi_porthashbase[lport & pcbinfo->ipi_porthashmask]
$2 =3D {lh_first =3D 0x0}
(kgdb) p lport
$3 =3D 339
(kgdb) p pcbinfo->ipi_porthashmask
$4 =3D 127
(kgdb) root@orion:/usr/obj/usr/src/sys/ORION # ^D
Script done on Tue Apr 30 17:16:55 2013
Glen
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