Date: Wed, 3 Sep 2014 07:08:49 -0700 From: Tim Kientzle <tim@kientzle.com> To: Garrett Cooper <yaneurabeya@gmail.com> Cc: AN <andy@neu.net>, FreeBSD Current <freebsd-current@freebsd.org> Subject: Re: panic on boot Message-ID: <DFF1F3F3-82A0-4352-B1BD-73A5FDA41C03@kientzle.com> In-Reply-To: <AD1F60E0-8AC6-488A-9897-CE09943F6416@kientzle.com> References: <alpine.BSF.2.11.1409021241250.88400@mail.neu.net> <CAGHfRMC0yTvxSkxt4rTrqiJMk8LPf7uH8YmLR90_c%2B3q=9vQvA@mail.gmail.com> <AD1F60E0-8AC6-488A-9897-CE09943F6416@kientzle.com>
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On Sep 3, 2014, at 6:51 AM, Tim Kientzle <tim@kientzle.com> wrote:
>=20
> On Sep 2, 2014, at 1:13 PM, Garrett Cooper <yaneurabeya@gmail.com> =
wrote:
>=20
>> On Tue, Sep 2, 2014 at 9:47 AM, AN <andy@neu.net> wrote:
>>> FreeBSD FBSD11 11.0-CURRENT FreeBSD 11.0-CURRENT #47 r269949: Wed =
Aug 13
>>> 14:18:28 EDT 2014 root@FBSD11:/usr/obj/usr/src/sys/MYKERNEL =
amd64
>>>=20
>>> Trying to rebuild the system at r270973
>>> I get a kernel panic on boot. I am able to boot into kernel.old at =
r269949
>>> and the system is functional. Is anyone else seeing a panic on boot =
at a
>>> recent svn update?
>>=20
>> Could you please provide the traceback?
>=20
> I=92m also seeing panics at boot on BBB (armv6) with a kernel built =
from r270779. Old kernel from r270339 still works.
Here=92s what I=92m seeing at boot on BBB with r270779:
=85 usual kernel boot messages ...
Trying to mount root from ufs:/dev/mmcsd0s2a [rw,noatime]...
warning: no time-of-day clock registered, system time will not be set =
accurately
Setting hostuuid: aeaa664b-1739-11e4-8e30-7c669d6ce14d.
Setting hostid: 0x0318d0fa.
No suitable dump device was found.
Entropy harvesting: interrupts ethernet point_to_point swi.
Starting file system checks:
/dev/mmcsd0s2a: FILE SYSTEM CLEAN; SKIPPING CHECKS
/dev/mmcsd0s2a: clean, 1982743 free (62311 frags, 240054 blocks, 1.6% =
fragmentation)
Mounting local file systems:.
/etc/rc: WARNING: $swapfile is obsolete. Ignored.
Writing entropy file:.
Setting hostname: bb-blue.
cpsw0: link state changed to DOWN
Starting Network: lo0 cpsw0.
lo0: flags=3D8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
options=3D600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6>
inet6 ::1 prefixlen 128=20
inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2=20
inet 127.0.0.1 netmask 0xff000000=20
nd6 options=3D21<PERFORMNUD,AUTO_LINKLOCAL>
cpsw0: flags=3D8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu =
1500
options=3D8000b<RXCSUM,TXCSUM,VLAN_MTU,LINKSTATE>
ether 7c:66:9d:6c:e1:4d
media: Ethernet autoselect (none)
status: no carrier
nd6 options=3D29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
Starting devd.
panic: Undefined instruction in kernel.
KDB: enter: panic
[ thread pid 284 tid 100069 ]
Stopped at $d: ldrb r15, [r15, r15, ror r15]!
db> bt
Tracing pid 284 tid 100069 td 0xc2b15c80
db_trace_self() at db_trace_self
pc =3D 0xc054d7a8 lr =3D 0xc0231ab8 (db_stack_trace+0xf4)
sp =3D 0xde69d2f8 fp =3D 0xde69d310
r10 =3D 0xc0939838
db_stack_trace() at db_stack_trace+0xf4
pc =3D 0xc0231ab8 lr =3D 0xc0231428 (db_command+0x270)
sp =3D 0xde69d318 fp =3D 0xde69d3b8
r4 =3D 0x00000000 r5 =3D 0x00000000
r6 =3D 0x00000000
db_command() at db_command+0x270
pc =3D 0xc0231428 lr =3D 0xc023118c (db_command_loop+0x60)
sp =3D 0xde69d3c0 fp =3D 0xde69d3d0
r4 =3D 0xc059585e r5 =3D 0xc05b04e3
r6 =3D 0xc0939824 r7 =3D 0xc064fa38
r8 =3D 0xc06958e4 r9 =3D 0xc06958e0
db_trap() at db_trap+0xd8
pc =3D 0xc0233b54 lr =3D 0xc039e894 (kdb_trap+0xbc)
sp =3D 0xde69d500 fp =3D 0xde69d520
r4 =3D 0x00000000 r5 =3D 0x00000001
r6 =3D 0xc0695908 r7 =3D 0xc064fa38
kdb_trap() at kdb_trap+0xbc
pc =3D 0xc039e894 lr =3D 0xc0563c80 =
(undefinedinstruction+0x298)
sp =3D 0xde69d528 fp =3D 0xde69d598
r4 =3D 0x00000000 r5 =3D 0x00000000
r6 =3D 0xc0563938 r7 =3D 0xe7ffffff
r8 =3D 0xc2b15c80 r9 =3D 0xc039e164
r10 =3D 0xde69d5a0
undefinedinstruction() at undefinedinstruction+0x298
pc =3D 0xc0563c80 lr =3D 0xc054f490 (exception_exit)
sp =3D 0xde69d5a0 fp =3D 0xde69d5f8
r4 =3D 0xc05b0538 r5 =3D 0xde69d634
r6 =3D 0xc05dc349 r7 =3D 0xc0687e28
r8 =3D 0xc2b15c80 r9 =3D 0xc093b1dc
r10 =3D 0xc0687c90
exception_exit() at exception_exit
pc =3D 0xc054f490 lr =3D 0xc039e158 (kdb_enter+0x40)
sp =3D 0xde69d5f0 fp =3D 0xde69d5f8
r0 =3D 0xc06958f4 r1 =3D 0x00000000
r2 =3D 0xc05b3eac r3 =3D 0x000000aa
r4 =3D 0xc05b0538 r5 =3D 0xde69d634
r6 =3D 0xc05dc349 r7 =3D 0xc0687e28
r8 =3D 0xc2b15c80 r9 =3D 0xc093b1dc
r10 =3D 0xc0687c90 r12 =3D 0x00000000
$a() at $a
pc =3D 0xc039e168 lr =3D 0xc03675a0 (vpanic+0xb4)
sp =3D 0xde69d600 fp =3D 0xde69d620
r4 =3D 0x00000100
vpanic() at vpanic+0xb4
pc =3D 0xc03675a0 lr =3D 0xc0367604 (kproc_shutdown)
sp =3D 0xde69d628 fp =3D 0xde69d62c
r4 =3D 0x00000000 r5 =3D 0x00000000
r6 =3D 0xc0563938 r7 =3D 0xe28fc600
r8 =3D 0xc2b15c80 r9 =3D 0xc2eb1bd8
r10 =3D 0xde69d6b8
kproc_shutdown() at kproc_shutdown
pc =3D 0xc0367604 lr =3D 0xc0939610 (gdb_uh)
sp =3D 0xde69d634 fp =3D 0xde69d6b0
r4 =3D 0xc0367604 r5 =3D 0xde69d634
Unknown entry: 0
gdb_uh() at gdb_uh
pc =3D 0xc0939610 lr =3D 0xc0939610 (gdb_uh)
sp =3D 0xde69d634 fp =3D 0xde69d6b0
Unable to unwind into user mode
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