Date: Sun, 28 May 2006 00:27:54 +0200 From: Michael Ortmann <mortmann@googlemail.com> Cc: freebsd-sparc64@freebsd.org Subject: Re: panic: trap: memory address not aligned (tap/if_bridge/openvpn -> kgdb information) Message-ID: <4478D26A.8010304@googlemail.com> In-Reply-To: <65dcde740605261009w77a7524ao3db3be74659ffe03@mail.gmail.com> References: <4476C40B.7060709@googlemail.com> <65dcde740605261009w77a7524ao3db3be74659ffe03@mail.gmail.com>
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James Tanis schrieb:
> I'd try recompiling with less, or even better, no optimization and see
> if your still getting the same error.
i thought its enough to compile the kernel with "makeoptions DEBUG=-g"
in kernel config file, because its the kernel who crashes not a useland
program and then to use the "kernel.debug" file. i even booted directly
from that file after renaming it to "kernel".
though i recompiled world and kernel now again with "CFLAGS=-g" in
"rc.conf" following the procedure in "/usr/src/Makefile".
before that i again did "make update" to sync with 6-STABLE.
after that i get the exact same kernel panic as soon as i try to start
openvpn:
any hints of how i can help providing more debug information is welcome!
im no kernel hacker, so the only thing i see is "atomic.h" from the
sparc64 include directory and symbol "tl0_intr" i cant follow. the whole
backtrace i was able to provice so far seems to point only to
panic/trap/exception functions in the kernel hiding the real problem?
regards,
Michael Ortmann
== uname -a =
FreeBSD server5.q-fin 6.1-STABLE FreeBSD 6.1-STABLE #0: Sat May 27
22:40:17 CEST 2006 eugene@server5.q-fin:/usr/obj/usr/src/sys/SERVER5
sparc64
== kernel conf ==
machine sparc64
cpu SUN4U
ident SERVER5
makeoptions DEBUG=-g # Build kernel with gdb(1) debug
symbols
[...]
device if_bridge
device tap
device pf
== kgdb kernel core ==
server5# kgdb -n 0
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain
conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "sparc64-marcel-freebsd".
Unread portion of the kernel message buffer:
tap0: Ethernet address: 00:bd:00:02:3c:00
panic: trap: memory address not aligned
cpuid = 0
Uptime: 2m27s
Dumping 512 MB (1 chunks)
chunk at 0xa0000000: 536870912 bytes |
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240
240 savectx(&dumppcb);
(kgdb) bt
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240
#1 0x00000000c0143e18 in boot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:409
#2 0x00000000c0144274 in panic (fmt=0xc03010d0 "trap: %s") at
/usr/src/sys/kern/kern_shutdown.c:565
#3 0x00000000c02c2944 in trap (tf=0xd6437130) at
/usr/src/sys/sparc64/sparc64/trap.c:369
#4 0x00000000c0058fe0 in tl1_trap ()
#5 0x00000000c01db208 in tapioctl (dev=0xfffff800b4c1f800,
cmd=18446735280407978592, data=0x0, flag=2597064,
td=0x7fdffffd0a0) at atomic.h:278
#6 0x00000000c0110eac in dev_refthread (dev=0xfffff800b765e100) at
/usr/src/sys/kern/kern_conf.c:124
#7 0x00000000c01112c4 in giant_ioctl (dev=0xfffff800b3ff6a00,
cmd=2147772029, data=0xd643753c "", fflag=7,
td=0xfffff800a6622260) at /usr/src/sys/kern/kern_conf.c:288
#8 0x00000000c00f17d4 in devfs_ioctl_f (fp=0xfffff800a6668780,
com=2147772029, data=0xd643753c, cred=0xfffff800a40bc200,
td=0xfffff800a6622260) at /usr/src/sys/fs/devfs/devfs_vnops.c:407
#9 0x00000000c01158dc in kern_fcntl (td=0xfffff800a6622260, fd=6,
cmd=4, arg=4) at file.h:258
#10 0x00000000c01150f8 in fcntl (td=0xfffff800a6622260, uap=0xd64378c0)
at /usr/src/sys/kern/kern_descrip.c:339
#11 0x00000000c02c2f44 in syscall (tf=0xd6437880) at
/usr/src/sys/sparc64/sparc64/trap.c:592
#12 0x00000000c0058dc0 in tl0_intr ()
#13 0x0000000000000000 in ?? ()
(kgdb) bt full
#0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240
No locals.
#1 0x00000000c0143e18 in boot (howto=260) at
/usr/src/sys/kern/kern_shutdown.c:409
first_buf_printf = 1
#2 0x00000000c0144274 in panic (fmt=0xc03010d0 "trap: %s") at
/usr/src/sys/kern/kern_shutdown.c:565
td = (struct thread *) 0xfffff800a6622260
bootopt = 260
newpanic = 0
ap = 0xd6437038
buf = "trap: memory address not aligned", '\0' <repeats 223 times>
#3 0x00000000c02c2944 in trap (tf=0xd6437130) at
/usr/src/sys/sparc64/sparc64/trap.c:369
td = (struct thread *) 0xfffff800a6622260
p = (struct proc *) 0x40a77028
sticks = 0
error = -1070591792
sig = -1069997120
#4 0x00000000c0058fe0 in tl1_trap ()
No symbol table info available.
#5 0x00000000c01db208 in tapioctl (dev=0xfffff800b4c1f800,
cmd=18446735280407978592, data=0x0, flag=2597064,
td=0x7fdffffd0a0) at atomic.h:278
_tid = 18446735280407978592
tp = (struct tap_softc *) 0xfffff800b4c1f800
ifp = (struct ifnet *) 0xfffff800b4c1f800
f = 0
#6 0x00000000c0110eac in dev_refthread (dev=0xfffff800b765e100) at
/usr/src/sys/kern/kern_conf.c:124
csw = (struct cdevsw *) 0xc032d5d8
#7 0x00000000c01112c4 in giant_ioctl (dev=0xfffff800b3ff6a00,
cmd=2147772029, data=0xd643753c "", fflag=7,
td=0xfffff800a6622260) at /usr/src/sys/kern/kern_conf.c:288
retval = -1275106816
#8 0x00000000c00f17d4 in devfs_ioctl_f (fp=0xfffff800a6668780,
com=2147772029, data=0xd643753c, cred=0xfffff800a40bc200,
td=0xfffff800a6622260) at /usr/src/sys/fs/devfs/devfs_vnops.c:407
dev = (struct cdev *) 0xfffff800b3ff6a00
dsw = (struct cdevsw *) 0xc032d5d8
vp = (struct vnode *) 0x0
vpold = (struct vnode *) 0xfffff800a6668780
error = 0
i = -700222148
p = 0xfffff800a6668780 "ÿÿø"
fgn = (struct fiodgname_arg *) 0xfffff800a6622260
#9 0x00000000c01158dc in kern_fcntl (td=0xfffff800a6622260, fd=6,
cmd=4, arg=4) at file.h:258
fdp = (struct filedesc *) 0xfffff800b4873200
flp = (struct flock *) 0x4
fp = (struct file *) 0xfffff800a6668780
p = (struct proc *) 0xfffff800a65e1730
pop = 0x0
vp = (struct vnode *) 0x4
newmin = 4
error = 0
flg = 64
tmp = 0
giant_locked = 1
#10 0x00000000c01150f8 in fcntl (td=0xfffff800a6622260, uap=0xd64378c0)
at /usr/src/sys/kern/kern_descrip.c:339
fl = {l_start = 4, l_len = 12884901888, l_pid = 0, l_type = 0,
l_whence = 0}
arg = 4
error = 0
#11 0x00000000c02c2f44 in syscall (tf=0xd6437880) at
/usr/src/sys/sparc64/sparc64/trap.c:592
callp = (struct sysent *) 0xc031ad10
td = (struct thread *) 0xfffff800a6622260
args = {3594743745, 3221589432, 3221589052, 3221589048,
658472179200, 100, 0, -9178230156714049532}
argp = (register_t *) 0xd64378c0
p = (struct proc *) 0xfffff800a65e1730
sticks = 41
code = 92
tpc = 1084715044
reg = 0
regcnt = 6
narg = 3
error = 0
#12 0x00000000c0058dc0 in tl0_intr ()
No symbol table info available.
#13 0x0000000000000000 in ?? ()
No symbol table info available.
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