A native armv7 panic during kyua runs: sys/netinet6/exthdr:exthdr -> Fatal kernel mode data abort: 'Alignment Fault' on read
Date: Fri, 04 Aug 2023 06:59:32 UTC
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. === Mark Millard marklmi at yahoo.com