[Bug 271759] if_ure(4) panic: unaligned access
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Date: Sat, 05 Aug 2023 05:08:10 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=271759
--- Comment #34 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
(In reply to Mark Millard from comment #12)
I've gotten the same sort of failure backtrace structure
with the built-in EtherNet on the same armv7 system. I
did not initially notice the commonality with here.
I had written on list . . .
While discovered via an attempted overall kyua run, the following is
sufficient to get the crash in my native armv7 context:
# /usr/bin/kyua test -k /usr/tests/Kyuafile sys/netinet6/exthdr:exthdr
sys/netinet6/exthdr:exthdr -> Fatal kernel mode data abort: 'Alignment Fault'
on read
trapframe: 0xdfb97aa0
FSR=00000001, FAR=db43ab76, spsr=60000013
r0 =dfedd000, r1 =dfb97b34, r2 =00000000, r3 =00000000
r4 =00000000, r5 =00000000, r6 =db43ab76, r7 =db43ab66
r8 =c096383c, r9 =00000000, r10=db132400, r11=dfb97b60
r12=00000000, ssp=dfb97b30, slr=c0b4e2c0, pc =c04e6b70
panic: Fatal abort
cpuid = 0
time = 1691131498
KDB: stack backtrace:
db_trace_self() at db_trace_self
pc = 0xc065f414 lr = 0xc007db80 (db_trace_self_wrapper+0x30)
sp = 0xdfb97858 fp = 0xdfb97970
db_trace_self_wrapper() at db_trace_self_wrapper+0x30
pc = 0xc007db80 lr = 0xc031a834 (vpanic+0x140)
sp = 0xdfb97978 fp = 0xdfb97998
r4 = 0x00000100 r5 = 0x00000000
r6 = 0xc07c369a r7 = 0xc0b32e58
vpanic() at vpanic+0x140
pc = 0xc031a834 lr = 0xc031a6f4 (vpanic)
sp = 0xdfb979a0 fp = 0xdfb979a4
r4 = 0xdfb97aa0 r5 = 0x00000013
r6 = 0xdb43ab76 r7 = 0x00000001
r8 = 0x00000001 r9 = 0xdfedd000
r10 = 0xdb43ab76
vpanic() at vpanic
pc = 0xc031a6f4 lr = 0xc06849dc (abort_align)
sp = 0xdfb979ac fp = 0xdfb979d8
r4 = 0x00000001 r5 = 0x00000001
r6 = 0xdfedd000 r7 = 0xdb43ab76
r8 = 0xdfb979a4 r9 = 0xc031a6f4
r10 = 0xdfb979ac
abort_align() at abort_align
pc = 0xc06849dc lr = 0xc0684a50 (abort_align+0x74)
sp = 0xdfb979e0 fp = 0xdfb979f8
r4 = 0x00000013 r10 = 0xdb43ab76
abort_align() at abort_align+0x74
pc = 0xc0684a50 lr = 0xc06846a8 (abort_handler+0x45c)
sp = 0xdfb97a00 fp = 0xdfb97a98
r4 = 0x00000000 r10 = 0xdb43ab76
abort_handler() at abort_handler+0x45c
pc = 0xc06846a8 lr = 0xc0661cc8 (exception_exit)
sp = 0xdfb97aa0 fp = 0xdfb97b60
r4 = 0x00000000 r5 = 0x00000000
r6 = 0xdb43ab76 r7 = 0xdb43ab66
r8 = 0xc096383c r9 = 0x00000000
r10 = 0xdb132400
exception_exit() at exception_exit
pc = 0xc0661cc8 lr = 0xc0b4e2c0 (__pcpu)
sp = 0xdfb97b30 fp = 0xdfb97b60
r0 = 0xdfedd000 r1 = 0xdfb97b34
r2 = 0x00000000 r3 = 0x00000000
r4 = 0x00000000 r5 = 0x00000000
r6 = 0xdb43ab76 r7 = 0xdb43ab66
r8 = 0xc096383c r9 = 0x00000000
r10 = 0xdb132400 r12 = 0x00000000
in6ifa_ifwithaddr() at in6ifa_ifwithaddr+0x30
pc = 0xc04e6b70 lr = 0xc04f9030 (ip6_input+0xd38)
sp = 0xdfb97b68 fp = 0xdfb97c28
r4 = 0xdb43ab76 r5 = 0xdb43ab5e
r6 = 0x00000000 r7 = 0xdb43ab66
ip6_input() at ip6_input+0xd38
pc = 0xc04f9030 lr = 0xc046d66c (netisr_dispatch_src+0xf8)
sp = 0xdfb97c30 fp = 0xdfb97c58
r4 = 0xdb43ab00 r5 = 0x00000006
r6 = 0x00000007 r7 = 0xc0b49d50
r8 = 0xdafea0c0 r9 = 0xdb43ab00
r10 = 0x00000086
netisr_dispatch_src() at netisr_dispatch_src+0xf8
pc = 0xc046d66c lr = 0xc04641b0 (ether_demux+0x18c)
sp = 0xdfb97c60 fp = 0xdfb97c78
r4 = 0x00000006 r5 = 0x00001201
r6 = 0xdb132400 r7 = 0x000000ff
r8 = 0xdafea0c0 r9 = 0xdb43ab00
r10 = 0x00000086
ether_demux() at ether_demux+0x18c
pc = 0xc04641b0 lr = 0xc0465880 (ether_nh_input+0x490)
sp = 0xdfb97c80 fp = 0xdfb97ce0
r4 = 0xdb132400 r5 = 0xdb43ab00
r6 = 0xdb43ab50 r10 = 0x00000086
ether_nh_input() at ether_nh_input+0x490
pc = 0xc0465880 lr = 0xc046d66c (netisr_dispatch_src+0xf8)
sp = 0xdfb97ce8 fp = 0xdfb97d10
r4 = 0xdb43ab00 r5 = 0x00000005
r6 = 0x0000000c r7 = 0xc0b49d30
r8 = 0xdafea0c0 r9 = 0xdb43ab00
r10 = 0xc098d18f
netisr_dispatch_src() at netisr_dispatch_src+0xf8
pc = 0xc046d66c lr = 0xc04645c4 (ether_input+0x50)
sp = 0xdfb97d18 fp = 0xdfb97d48
r4 = 0xdb43ab00 r5 = 0x00000000
r6 = 0x00008803 r7 = 0x00000000
r8 = 0xdafea0c0 r9 = 0xdb43ab00
r10 = 0xc098d18f
ether_input() at ether_input+0x50
pc = 0xc04645c4 lr = 0xdffb3f08 ($a.10+0x108)
sp = 0xdfb97d50 fp = 0xdfb97d78
r4 = 0xdb132400 r5 = 0xdaff8b00
r6 = 0xdaff8b10 r7 = 0x00000000
r8 = 0x00000000 r10 = 0xc098d18f
$a.10() at $a.10+0x108
pc = 0xdffb3f08 lr = 0xc038cb2c (taskqueue_run_locked+0x1c4)
sp = 0xdfb97d80 fp = 0xdfb97dd8
r4 = 0xe0145100 r5 = 0xdaff8b2c
r6 = 0xe0145150 r7 = 0x00000001
r8 = 0x00000000 r9 = 0xdfb97d90
r10 = 0x00000001
taskqueue_run_locked() at taskqueue_run_locked+0x1c4
pc = 0xc038cb2c lr = 0xc038e4e4 (taskqueue_thread_loop+0x1b0)
sp = 0xdfb97de0 fp = 0xdfb97e10
r4 = 0xe0145100 r5 = 0xe0145140
r6 = 0xc07af4c4 r7 = 0x00000000
r8 = 0xc098d18f r9 = 0x00000100
r10 = 0xc0b228a0
taskqueue_thread_loop() at taskqueue_thread_loop+0x1b0
pc = 0xc038e4e4 lr = 0xc02cdf0c (fork_exit+0xc0)
sp = 0xdfb97e18 fp = 0xdfb97e38
r4 = 0xdfedd000 r5 = 0xc0b224e0
r6 = 0xc038e334 r7 = 0xdffc4f54
r8 = 0xdfb97e40 r9 = 0xc098d191
fork_exit() at fork_exit+0xc0
pc = 0xc02cdf0c lr = 0xc0661c5c (swi_exit)
sp = 0xdfb97e40 fp = 0x00000000
r4 = 0xc038e334 r5 = 0xdffc4f54
r6 = 0xc0b45d84 r7 = 0xd73bcba0
r8 = 0x00000001 r10 = 0xc0b228a0
swi_exit() at swi_exit
pc = 0xc0661c5c lr = 0xc0661c5c (swi_exit)
sp = 0xdfb97e40 fp = 0x00000000
KDB: enter: panic
[ thread pid 0 tid 100230 ]
For reference:
# uname -apKU
FreeBSD OPiP2E-RPi2v1p1 14.0-CURRENT FreeBSD 14.0-CURRENT armv7 1400093 #6
main-n264334-215bab7924f6-dirty: Tue Jul 25 23:11:39 PDT 2023
root@CA72-16Gp-ZFS:/usr/obj/BUILDs/main-CA7-nodbg-clang/usr/main-src/arm.armv7/sys/GENERIC-NODBG-CA7
arm armv7 1400093 1400093
The OrangePi+ 2Ed was the type of system booted and tested.
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