Date: Sun, 25 Dec 2005 00:51:53 +0100 From: "Martin P. Hansen" <mph@lima.dyndns.dk> To: freebsd-current@freebsd.org Subject: Re: if_dc.c causes page fault while in kernel mode; coredump; reproducible Message-ID: <20051224235153.GA46187@echobase.hoth.dk> In-Reply-To: <a78074950512241023p54375bbera719851ea2f6140c@mail.gmail.com> References: <20051224160047.GA40553@echobase.hoth.dk> <a78074950512241023p54375bbera719851ea2f6140c@mail.gmail.com>
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On Sun, 25 Dec 2005, Xin LI wrote:
> Would you please provide output from GDB's "bt full"? That would help
> us to track down the issue.
Sure, it got trimmed away in my attempt to balance the information.
(kgdb) bt full
#0 doadump () at pcpu.h:165
No locals.
#1 0xc063a55e in boot (howto=3D260) at /usr/src/sys/kern/kern_shutdown.c:3=
99
first_buf_printf =3D 1
#2 0xc063a7f4 in panic (fmt=3D0xc08539cc "%s")
at /usr/src/sys/kern/kern_shutdown.c:555
td =3D (struct thread *) 0xc36db600
bootopt =3D 260
newpanic =3D 0
ap =3D 0xc36db600 "$\226m=C3"
buf =3D "page fault", '\0' <repeats 245 times>
#3 0xc080b484 in trap_fatal (frame=3D0xd5865c74, eva=3D24)
at /usr/src/sys/i386/i386/trap.c:836
code =3D 40
type =3D 12
ss =3D 40
esp =3D 0
softseg =3D {ssd_base =3D 0, ssd_limit =3D 1048575, ssd_type =3D 27=
,=20
ssd_dpl =3D 0, ssd_p =3D 1, ssd_xx =3D 6, ssd_xx1 =3D 1, ssd_def32 =3D 1,=
ssd_gran =3D 1}
msg =3D 0x0
#4 0xc080b1eb in trap_pfault (frame=3D0xd5865c74, usermode=3D0, eva=3D24)
at /usr/src/sys/i386/i386/trap.c:744
va =3D 0
vm =3D (struct vmspace *) 0x0
map =3D 0xc0925ec0
rv =3D 1
ftype =3D 1 '\001'
td =3D (struct thread *) 0xc36db600
p =3D (struct proc *) 0xc36d9624
#5 0xc080ae29 in trap (frame=3D
{tf_fs =3D 8, tf_es =3D -1012793304, tf_ds =3D -1066205144, tf_edi =
=3D -4, tf_esi =3D 16, tf_ebp =3D -712614708, tf_isp =3D -712614752, tf_ebx=
=3D 0, tf_edx =3D -712183808, tf_ecx =3D 0, tf_eax =3D -1015383040, tf_tra=
pno =3D 12, tf_err =3D 2, tf_eip =3D -1066150784, tf_cs =3D 32, tf_eflags =
=3D 590406, tf_esp =3D -712183552, tf_ss =3D -1015383040})
at /usr/src/sys/i386/i386/trap.c:434
td =3D (struct thread *) 0xc36db600
p =3D (struct proc *) 0xc36d9624
sticks =3D 406607872
i =3D 0
ucode =3D 0
type =3D 12
code =3D 2
eva =3D 24
#6 0xc07fa5da in calltrap () at /usr/src/sys/i386/i386/exception.s:139
No locals.
#7 0xc073d480 in dc_rxeof (sc=3D0xc379c000) at /usr/src/sys/pci/if_dc.c:27=
79
m =3D (struct mbuf *) 0x0
ifp =3D (struct ifnet *) 0xc37a7c00
cur_rx =3D (struct dc_desc *) 0xd58cf100
i =3D 16
total_len =3D -4
rxstat =3D 0
#8 0xc073dbbe in dc_intr (arg=3D0xc379c000) at /usr/src/sys/pci/if_dc.c:31=
42
curpkts =3D 11281
sc =3D (struct dc_softc *) 0xc379c000
ifp =3D (struct ifnet *) 0xc37a7c00
status =3D 4026532162
#9 0xc06260f5 in ithread_loop (arg=3D0xc367f480)
at /usr/src/sys/kern/kern_intr.c:547
ithd =3D (struct ithd *) 0xc367f480
ih =3D (struct intrhand *) 0xc3809400
td =3D (struct thread *) 0xc36db600
p =3D (struct proc *) 0xc36d9624
count =3D 0
warned =3D 0
#10 0xc062537c in fork_exit (callout=3D0xc0625f9c <ithread_loop>,=20
arg=3D0xc367f480, frame=3D0xd5865d38) at /usr/src/sys/kern/kern_fork.c:=
789
p =3D (struct proc *) 0xc36d9624
td =3D (struct thread *) 0xd58cf000
#11 0xc07fa63c in fork_trampoline () at /usr/src/sys/i386/i386/exception.s:=
208
No locals.
(kgdb)
--=20
Martin P. Hansen
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