Date: Thu, 4 Sep 2014 20:25:17 -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: <D9285398-EA7E-426A-A1D4-66CF0B17A7C3@kientzle.com> In-Reply-To: <DFF1F3F3-82A0-4352-B1BD-73A5FDA41C03@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> <DFF1F3F3-82A0-4352-B1BD-73A5FDA41C03@kientzle.com>
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On Sep 3, 2014, at 7:08 AM, Tim Kientzle <tim@kientzle.com> wrote: > > On Sep 3, 2014, at 6:51 AM, Tim Kientzle <tim@kientzle.com> wrote: > >> >> On Sep 2, 2014, at 1:13 PM, Garrett Cooper <yaneurabeya@gmail.com> wrote: >> >>> 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 >>>> >>>> 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? >>> >>> Could you please provide the traceback? >> >> I’m also seeing panics at boot on BBB (armv6) with a kernel built from r270779. Old kernel from r270339 still works. > > Here’s what I’m seeing at boot on BBB with r270779: > > … 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 /etc/rc: WARNING: $swapfile is obsolete.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=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384 > options=600003<RXCSUM,TXCSUM,RXCSUM_IPV6,TXCSUM_IPV6> > inet6 ::1 prefixlen 128 > inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2 > inet 127.0.0.1 netmask 0xff000000 > nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> > cpsw0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > options=8000b<RXCSUM,TXCSUM,VLAN_MTU,LINKSTATE> > ether 7c:66:9d:6c:e1:4d > media: Ethernet autoselect (none) > status: no carrier > nd6 options=29<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 = 0xc054d7a8 lr = 0xc0231ab8 (db_stack_trace+0xf4) > sp = 0xde69d2f8 fp = 0xde69d310 > r10 = 0xc0939838 > db_stack_trace() at db_stack_trace+0xf4 > pc = 0xc0231ab8 lr = 0xc0231428 (db_command+0x270) > sp = 0xde69d318 fp = 0xde69d3b8 > r4 = 0x00000000 r5 = 0x00000000 > r6 = 0x00000000 > db_command() at db_command+0x270 > pc = 0xc0231428 lr = 0xc023118c (db_command_loop+0x60) > sp = 0xde69d3c0 fp = 0xde69d3d0 > r4 = 0xc059585e r5 = 0xc05b04e3 > r6 = 0xc0939824 r7 = 0xc064fa38 > r8 = 0xc06958e4 r9 = 0xc06958e0 > db_trap() at db_trap+0xd8 > pc = 0xc0233b54 lr = 0xc039e894 (kdb_trap+0xbc) > sp = 0xde69d500 fp = 0xde69d520 > r4 = 0x00000000 r5 = 0x00000001 > r6 = 0xc0695908 r7 = 0xc064fa38 > kdb_trap() at kdb_trap+0xbc > pc = 0xc039e894 lr = 0xc0563c80 (undefinedinstruction+0x298) > sp = 0xde69d528 fp = 0xde69d598 > r4 = 0x00000000 r5 = 0x00000000 > r6 = 0xc0563938 r7 = 0xe7ffffff > r8 = 0xc2b15c80 r9 = 0xc039e164 > r10 = 0xde69d5a0 > undefinedinstruction() at undefinedinstruction+0x298 > pc = 0xc0563c80 lr = 0xc054f490 (exception_exit) > sp = 0xde69d5a0 fp = 0xde69d5f8 > r4 = 0xc05b0538 r5 = 0xde69d634 > r6 = 0xc05dc349 r7 = 0xc0687e28 > r8 = 0xc2b15c80 r9 = 0xc093b1dc > r10 = 0xc0687c90 > exception_exit() at exception_exit > pc = 0xc054f490 lr = 0xc039e158 (kdb_enter+0x40) > sp = 0xde69d5f0 fp = 0xde69d5f8 > r0 = 0xc06958f4 r1 = 0x00000000 > r2 = 0xc05b3eac r3 = 0x000000aa > r4 = 0xc05b0538 r5 = 0xde69d634 > r6 = 0xc05dc349 r7 = 0xc0687e28 > r8 = 0xc2b15c80 r9 = 0xc093b1dc > r10 = 0xc0687c90 r12 = 0x00000000 > $a() at $a > pc = 0xc039e168 lr = 0xc03675a0 (vpanic+0xb4) > sp = 0xde69d600 fp = 0xde69d620 > r4 = 0x00000100 > vpanic() at vpanic+0xb4 > pc = 0xc03675a0 lr = 0xc0367604 (kproc_shutdown) > sp = 0xde69d628 fp = 0xde69d62c > r4 = 0x00000000 r5 = 0x00000000 > r6 = 0xc0563938 r7 = 0xe28fc600 > r8 = 0xc2b15c80 r9 = 0xc2eb1bd8 > r10 = 0xde69d6b8 > kproc_shutdown() at kproc_shutdown > pc = 0xc0367604 lr = 0xc0939610 (gdb_uh) > sp = 0xde69d634 fp = 0xde69d6b0 > r4 = 0xc0367604 r5 = 0xde69d634 > Unknown entry: 0 > gdb_uh() at gdb_uh > pc = 0xc0939610 lr = 0xc0939610 (gdb_uh) > sp = 0xde69d634 fp = 0xde69d6b0 > Unable to unwind into user mode I just noticed another of my BBB systems is successfully running r270695, so it seems something broke the Beaglebone kernel between 270695 and 270779. Timhelp
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