Date: Fri, 10 Jan 2020 07:28:21 -0800 From: Mark Millard <marklmi@yahoo.com> To: freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: head -r356426 armv7 kyua run: Fatal kernel mode data abort: 'Translation Fault (L2)' on read during procstat_test:kernel_stacks Message-ID: <63F067CC-4024-437E-887A-B0F445897121@yahoo.com> In-Reply-To: <393D35C2-D8B1-4200-8EDC-D0340E706DF8@yahoo.com> References: <393D35C2-D8B1-4200-8EDC-D0340E706DF8@yahoo.com>
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On 2020-Jan-9, at 21:30, Mark Millard <marklmi at yahoo.com> wrote:
> . . .
> usr.bin/procstat/procstat_test:binary_info -> passed [0.289s]
> usr.bin/procstat/procstat_test:command_line_arguments -> passed [0.279s]
> usr.bin/procstat/procstat_test:environment -> passed [0.283s]
> usr.bin/procstat/procstat_test:file_descriptor -> passed [0.269s]
> usr.bin/procstat/procstat_test:kernel_stacks ->
>
>
>
> Fatal kernel mode data abort: 'Translation Fault (L2)' on read
> trapframe: 0xdf4fdac0
> FSR=00000007, FAR=e1b65108, spsr=800000d3
> r0 =df4fdb84, r1 =00000000, r2 =e1b64f98, r3 =0000005b
> r4 =e415f680, r5 =e1b64f98, r6 =0000002e, r7 =00000000
> r8 =c50de720, r9 =00000002, r10=00000018, r11=df4fdb78
> r12=e415f6cc, ssp=df4fdb54, slr=00000001, pc =c06890b0
>
> panic: Fatal abort
> cpuid = 0
> time = 1578628839
> KDB: stack backtrace:
> db_trace_self() at db_trace_self
> pc = 0xc0664b3c lr = 0xc007f710 (db_trace_self_wrapper+0x30)
> sp = 0xdf4fd898 fp = 0xdf4fd9b0
> db_trace_self_wrapper() at db_trace_self_wrapper+0x30
> pc = 0xc007f710 lr = 0xc02e5d14 (vpanic+0x164)
> sp = 0xdf4fd9b8 fp = 0xdf4fd9d8
> r4 = 0x00000100 r5 = 0xe13d63c0
> r6 = 0xc07b4188 r7 = 0x00000000
> vpanic() at vpanic+0x164
> pc = 0xc02e5d14 lr = 0xc02e5bb0 (vpanic)
> sp = 0xdf4fd9e0 fp = 0xdf4fd9e4
> r4 = 0xdf4fdac0 r5 = 0x00000013
> r6 = 0xe1b65108 r7 = 0x00000007
> r8 = 0x00000007 r9 = 0xe13d63c0
> r10 = 0xe1b65108
> vpanic() at vpanic
> pc = 0xc02e5bb0 lr = 0xc06886e0 (abort_align)
> sp = 0xdf4fd9ec fp = 0xdf4fda18
> r4 = 0x00000007 r5 = 0x00000007
> r6 = 0xe13d63c0 r7 = 0xe1b65108
> r8 = 0xdf4fd9e4 r9 = 0xc02e5bb0
> r10 = 0xdf4fd9ec
> abort_align() at abort_align
> pc = 0xc06886e0 lr = 0xc068828c (abort_handler+0x2f8)
> sp = 0xdf4fda20 fp = 0xdf4fdab8
> r4 = 0x00000013 r5 = 0xe1b65108
> abort_handler() at abort_handler+0x2f8
> pc = 0xc068828c lr = 0xc0667488 (exception_exit)
> sp = 0xdf4fdac0 fp = 0xdf4fdb78
> r4 = 0xe415f680 r5 = 0xe1b64f98
> r6 = 0x0000002e r7 = 0x00000000
> r8 = 0xc50de720 r9 = 0x00000002
> r10 = 0x00000018
> exception_exit() at exception_exit
> pc = 0xc0667488 lr = 0x00000001 (0x1)
> sp = 0xdf4fdb54 fp = 0xdf4fdb78
> r0 = 0xdf4fdb84 r1 = 0x00000000
> r2 = 0xe1b64f98 r3 = 0x0000005b
> r4 = 0xe415f680 r5 = 0xe1b64f98
> r6 = 0x0000002e r7 = 0x00000000
> r8 = 0xc50de720 r9 = 0x00000002
> r10 = 0x00000018 r12 = 0xe415f6cc
> unwind_stack_one() at unwind_stack_one+0x98
> pc = 0xc06890b0 lr = 0xc0685028 (stack_save_td+0x4c)
> sp = 0xdf4fdb80 fp = 0xdf4fdbe0
> r4 = 0xe415f680 r5 = 0xdf4fdb84
> r6 = 0xe9cc5800 r7 = 0xdf4fdcd8
> r8 = 0xc50de720 r9 = 0x00000002
> r10 = 0x00000018
> stack_save_td() at stack_save_td+0x4c
> pc = 0xc0685028 lr = 0xc02d2428 (sysctl_kern_proc_kstack+0x2d8)
> sp = 0xdf4fdbe8 fp = 0xdf4fdc48
> r4 = 0xc50e1000 r5 = 0xe35ea780
> sysctl_kern_proc_kstack() at sysctl_kern_proc_kstack+0x2d8
> pc = 0xc02d2428 lr = 0xc02f7204 (sysctl_root_handler_locked+0xf0)
> sp = 0xdf4fdc50 fp = 0xdf4fdc80
> r4 = 0xc0929d30 r5 = 0xdf4fdd5c
> r6 = 0xc02d2150 r7 = 0xc0974ac4
> r8 = 0x00000000 r9 = 0x00000001
> r10 = 0xdf4fdcd8
> sysctl_root_handler_locked() at sysctl_root_handler_locked+0xf0
> pc = 0xc02f7204 lr = 0xc02f6730 (sysctl_root+0x274)
> sp = 0xdf4fdc88 fp = 0xdf4fdcc8
> r4 = 0xdf4fdcd8 r5 = 0xc0929d30
> r6 = 0x00000000 r7 = 0xdf4fdd5c
> r8 = 0xdf4fdc90 r9 = 0x00000000
> r10 = 0x00000001
> sysctl_root() at sysctl_root+0x274
> pc = 0xc02f6730 lr = 0xc02f6cb4 (userland_sysctl+0x170)
> sp = 0xdf4fdcd0 fp = 0xdf4fdd28
> r4 = 0x00000004 r5 = 0xdf4fdd50
> r6 = 0x00000000 r7 = 0x00000000
> r8 = 0xdf4fdcd8 r9 = 0x00000000
> r10 = 0x00000000
> userland_sysctl() at userland_sysctl+0x170
> pc = 0xc02f6cb4 lr = 0xc02f6b00 (sys___sysctl+0x7c)
> sp = 0xdf4fdd30 fp = 0xdf4fddc0
> r4 = 0xe13d6668 r5 = 0xe13d63c0
> r6 = 0xdf4fdd4c r7 = 0x00000000
> r8 = 0xe13d6660 r9 = 0xc0974ac4
> r10 = 0xc0974a90
> sys___sysctl() at sys___sysctl+0x7c
> pc = 0xc02f6b00 lr = 0xc068799c (swi_handler+0x3c8)
> sp = 0xdf4fddc8 fp = 0xdf4fde40
> r4 = 0xe13d63c0 r5 = 0x00000000
> r6 = 0xe167f390 r10 = 0xc0974a90
> swi_handler() at swi_handler+0x3c8
> pc = 0xc068799c lr = 0xc0667418 (swi_exit)
> sp = 0xdf4fde48 fp = 0xbfbfe388
> r4 = 0x00000000 r5 = 0xbfbfe39c
> r6 = 0xbfbfe3a0 r7 = 0x000000ca
> r8 = 0x00000000 r9 = 0x00000000
> r10 = 0x0001b144
> swi_exit() at swi_exit
> pc = 0xc0667418 lr = 0xc0667418 (swi_exit)
> sp = 0xdf4fde48 fp = 0xbfbfe388
> KDB: enter: panic
> [ thread pid 16781 tid 100185 ]
> Stopped at kdb_enter+0x58: ldrb r15, [r15, r15, ror r15]!
> db>
>
> This was on an OrangePi+2E. world and kernel
> were non-debug builds.
In 4 kyua runs that attempt the full set of tests,
I've this type of crash twice (at the same test).
Fatal kernel mode data abort: 'Translation Fault (L2)' on read
trapframe: 0xe48b7ac0
FSR=00000007, FAR=e1d5f108, spsr=800000d3
r0 =e48b7b84, r1 =00000000, r2 =e1d5ef98, r3 =0000005b
r4 =e2a97a00, r5 =e1d5ef98, r6 =0000002e, r7 =00000000
r8 =c50de720, r9 =00000002, r10=00000018, r11=e48b7b78
r12=e2a97a4c, ssp=e48b7b54, slr=00000001, pc =c06890b0
timeout stopping cpus
panic: Fatal abort
cpuid = 3
time = 1578649814
KDB: stack backtrace:
db_trace_self() at db_trace_self
pc = 0xc0664b3c lr = 0xc007f710 (db_trace_self_wrapper+0x30)
sp = 0xe48b7898 fp = 0xe48b79b0
db_trace_self_wrapper() at db_trace_self_wrapper+0x30
pc = 0xc007f710 lr = 0xc02e5d14 (vpanic+0x164)
sp = 0xe48b79b8 fp = 0xe48b79d8
r4 = 0x00000100 r5 = 0xe1339000
r6 = 0xc07b4188 r7 = 0x00000000
vpanic() at vpanic+0x164
pc = 0xc02e5d14 lr = 0xc02e5bb0 (vpanic)
sp = 0xe48b79e0 fp = 0xe48b79e4
r4 = 0xe48b7ac0 r5 = 0x00000013
r6 = 0xe1d5f108 r7 = 0x00000007
r8 = 0x00000007 r9 = 0xe1339000
r10 = 0xe1d5f108
vpanic() at vpanic
pc = 0xc02e5bb0 lr = 0xc06886e0 (abort_align)
sp = 0xe48b79ec fp = 0xe48b7a18
r4 = 0x00000007 r5 = 0x00000007
r6 = 0xe1339000 r7 = 0xe1d5f108
r8 = 0xe48b79e4 r9 = 0xc02e5bb0
r10 = 0xe48b79ec
abort_align() at abort_align
pc = 0xc06886e0 lr = 0xc068828c (abort_handler+0x2f8)
sp = 0xe48b7a20 fp = 0xe48b7ab8
r4 = 0x00000013 r5 = 0xe1d5f108
abort_handler() at abort_handler+0x2f8
pc = 0xc068828c lr = 0xc0667488 (exception_exit)
sp = 0xe48b7ac0 fp = 0xe48b7b78
r4 = 0xe2a97a00 r5 = 0xe1d5ef98
r6 = 0x0000002e r7 = 0x00000000
r8 = 0xc50de720 r9 = 0x00000002
r10 = 0x00000018
exception_exit() at exception_exit
pc = 0xc0667488 lr = 0x00000001 (0x1)
sp = 0xe48b7b54 fp = 0xe48b7b78
r0 = 0xe48b7b84 r1 = 0x00000000
r2 = 0xe1d5ef98 r3 = 0x0000005b
r4 = 0xe2a97a00 r5 = 0xe1d5ef98
r6 = 0x0000002e r7 = 0x00000000
r8 = 0xc50de720 r9 = 0x00000002
r10 = 0x00000018 r12 = 0xe2a97a4c
unwind_stack_one() at unwind_stack_one+0x98
pc = 0xc06890b0 lr = 0xc0685028 (stack_save_td+0x4c)
sp = 0xe48b7b80 fp = 0xe48b7be0
r4 = 0xe2a97a00 r5 = 0xe48b7b84
r6 = 0xe6eee000 r7 = 0xe48b7cd8
r8 = 0xc50de720 r9 = 0x00000002
r10 = 0x00000018
stack_save_td() at stack_save_td+0x4c
pc = 0xc0685028 lr = 0xc02d2428 (sysctl_kern_proc_kstack+0x2d8)
sp = 0xe48b7be8 fp = 0xe48b7c48
r4 = 0xc50e1000 r5 = 0xe2a79280
sysctl_kern_proc_kstack() at sysctl_kern_proc_kstack+0x2d8
pc = 0xc02d2428 lr = 0xc02f7204 (sysctl_root_handler_locked+0xf0)
sp = 0xe48b7c50 fp = 0xe48b7c80
r4 = 0xc0929d30 r5 = 0xe48b7d5c
r6 = 0xc02d2150 r7 = 0xc0974ac4
r8 = 0x00000000 r9 = 0x00000001
r10 = 0xe48b7cd8
sysctl_root_handler_locked() at sysctl_root_handler_locked+0xf0
pc = 0xc02f7204 lr = 0xc02f6730 (sysctl_root+0x274)
sp = 0xe48b7c88 fp = 0xe48b7cc8
r4 = 0xe48b7cd8 r5 = 0xc0929d30
r6 = 0x00000000 r7 = 0xe48b7d5c
r8 = 0xe48b7c90 r9 = 0x00000000
r10 = 0x00000001
sysctl_root() at sysctl_root+0x274
pc = 0xc02f6730 lr = 0xc02f6cb4 (userland_sysctl+0x170)
sp = 0xe48b7cd0 fp = 0xe48b7d28
r4 = 0x00000004 r5 = 0xe48b7d50
r6 = 0x00000000 r7 = 0x00000000
r8 = 0xe48b7cd8 r9 = 0x00000000
r10 = 0x00000000
userland_sysctl() at userland_sysctl+0x170
pc = 0xc02f6cb4 lr = 0xc02f6b00 (sys___sysctl+0x7c)
sp = 0xe48b7d30 fp = 0xe48b7dc0
r4 = 0xe13392a8 r5 = 0xe1339000
r6 = 0xe48b7d4c r7 = 0x00000000
r8 = 0xe13392a0 r9 = 0xc0974ac4
r10 = 0xc0974a90
sys___sysctl() at sys___sysctl+0x7c
pc = 0xc02f6b00 lr = 0xc068799c (swi_handler+0x3c8)
sp = 0xe48b7dc8 fp = 0xe48b7e40
r4 = 0xe1339000 r5 = 0x00000000
r6 = 0xeb823390 r10 = 0xc0974a90
swi_handler() at swi_handler+0x3c8
pc = 0xc068799c lr = 0xc0667418 (swi_exit)
sp = 0xe48b7e48 fp = 0xbfbfe388
r4 = 0x00000000 r5 = 0xbfbfe39c
r6 = 0xbfbfe3a0 r7 = 0x000000ca
r8 = 0x00000000 r9 = 0x00000000
r10 = 0x0001b144
swi_exit() at swi_exit
pc = 0xc0667418 lr = 0xc0667418 (swi_exit)
sp = 0xe48b7e48 fp = 0xbfbfe388
KDB: enter: panic
[ thread pid 50966 tid 100943 ]
Stopped at kdb_enter+0x58: ldrb r15, [r15, r15, ror r15]!
===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
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