[Booting a debug kernel reported a lock order
reversal that might be relevant. The problem
repeated again: seems to always fail in my
context. The backtrace is like the prior
one, but for the debug kernel build being used
this time.]
On 2018-Oct-17, at 6:29 PM, Mark Millard wrote:
> [I got another data storage interrupt failure, again
> during kyaua showing:
>
> sys/netipsec/tunnel/aes_cbc_128_hmac_sha1:v4 ->
>
> but the backtrace looks different. See below.]
>
> On 2018-Oct-17, at 4:58 PM, Mark Millard wrote:
>
>> On a powerpc64 with builworld buildkernel built via
>> devel/powerpc64-xtoolchain-gcc for head -r339076
>> (some source adjustments), and a system-cc-is-clang
>> I attempted a:
>>
>> # kyua test -k /usr/tests/Kyuafile
>>
>> It got to:
>>
>> sys/netinet/reuseport_lb:basic_ipv4 -> failed:
>> /usr/src/tests/sys/netinet/reuseport_lb.c:165: bind() failed: Address
>> already in use [0.014s]
>> sys/netinet/reuseport_lb:basic_ipv6 -> failed:
>> /usr/src/tests/sys/netinet/reuseport_lb.c:221: bind() failed: Address
>> already in use [0.014s]
>> sys/netipsec/tunnel/aes_cbc_128_hmac_sha1:v4 ->
>>
>> and then the system crashed. I am re-running to
>> see what happens.
>>
>> The context has a non-debug kernel (but with
>> symbols).
>>
>> Hand transcribed from a picture . . .
>>
>> fatal kernel trap:
>>
>> exception = 0x300 (data storage interrupt)
>> virtual address = 0xbfba8530
>> dsisr = 0x4200
>> srr0= 0x72b054
>> srr1= 0x90009032
>> current msr = 0x90009032
>> lr = 0x69948c
>> curthread = 0xc00036f7f000
>> pid = 12798, comm = ifconfig
>>
>> [ thread pid 12798 tid 100312 ]
>> Stopped at lock_init+0x78 stw r9,0x8(r3)
>> db:0:kdb.enter.default> bt
>> Tracing pid 12798 tid 100312 td 0xc00036f7f000
>> 0xe0004646e330: at 0xe0004646e36c
>> 0xe0004646e360: at epair_modevent+0xf0
>> 0xe0004646e410: at module_register_init+0xe8
>> 0xe0004646e4a0: at linker_laod_module+0x6f8
>
> Should have been: linker_load_module
>
>> 0xe0004646e580: at kern_kldload+0x150
>> 0xe0004646e5e0: at sys_kldload+0xb80
>> 0xe0004646e630: at trap+0xef4
>> 0xe0004646e790: at powerpc_interrupt+0x12c
>> 0xe0004646e820: user sc trap by 0x81017fcf8
>> srr1 = 0x9000f032
>> r1 = 0x3fffcfe0
>> cr = 0x28022482
>> xer = 0x2000
>> ctr = 0x81017fcf0
>> r2 = 0x810336300
>>
>>
>> # uname -apKU
>> FreeBSD FBSDG5L 12.0-ALPHA8 FreeBSD 12.0-ALPHA8 #4 r339076M: Mon Oct 15
>> 13:19:35 PDT 2018
>> markmi@FBSDG5L:/usr/obj/powerpc64vtsc_xtoolchain-gcc/powerpc.powerpc64/usr/src/powerpc.powerpc64/sys/GENERIC64vtsc-NODBG
>> powerpc powerpc64 1200084 1200084
>>
>> ports was at -r480180.
>>
>
> Again failed during:
>
> sys/netinet/reuseport_lb:basic_ipv4 -> failed:
> /usr/src/tests/sys/netinet/reuseport_lb.c:165: bind() failed: Address already
> in use [0.013s]
> sys/netinet/reuseport_lb:basic_ipv6 -> failed:
> /usr/src/tests/sys/netinet/reuseport_lb.c:221: bind() failed: Address already
> in use [0.013s]
> sys/netipsec/tunnel/aes_cbc_128_hmac_sha1:v4 ->
>
>
> The backtrace this time shows (hand transcribed):
>
> fatal kernel trap:
>
> exception = 0x300 (data storage interrupt)
> virtual address = 0xc0008cab6530
> dsisr = 0x4200
> srr0= 0xe00046e5b228
> srr1= 0x90009032
> current msr = 0x90009032
> lr = 0xe00046e5b220
> curthread = 0xcd48e000
> pid = 9666, comm = jail
>
> [ thread pid 9666 tid 100185 ]
> Stopped at vnet_epair_init+0x78: stdx r3,r29,r30
> db:0:kdb.enter.default> bt
> Tracing pid 9666 tid 100185 td 0xcd48e000
> 0xe000470a1240: at vnet_sysinit+0x64
> 0xe000470a1270: at vnet_alloc+0xfc
> 0xe000470a12d0: at kern_jail_set+0x1e30
> 0xe000470a15e0: at sys_jail_set+08c
> 0xe000470a1630: at trap+0xef4
> 0xe000470a1790: at powerpc_interrupt+0x12c
> 0xe000470a1820: user sc trap by 0x81016a888
> srr1 = 0x9000f032
> r1 = 0x3fffd090
> cr = 0x28002482
> xer = 0x2000
> ctr = 0x81016a880
> r2 = 0x810322300
>
> I got a core.txt.0 this time. it reported:
>
> . . .
> epair3a: Ethernet address: 02:60:27:70:4b:0a
> epair3b: Ethernet address: 02:60:27:70:4b:0b
> epair3a: link state changed to UP
> epair3b: link state changed to UP
>
> fatal kernel trap:
>
> exception = 0x300 (data storage interrupt)
> virtual address = 0xc0008cab6530
> dsisr = 0x4200
> srr0= 0xe00046e5b228 (0xe00046e5b228)
> srr1= 0x90009032
> current msr = 0x90009032
> lr = 0xe00046e5b220 (0xe00046e5b220)
> curthread = 0xcd48e000
> pid = 9666, comm = jail
>
>
epair3a: Ethernet address: 02:60:27:70:4b:0a
epair3b: Ethernet address: 02:60:27:70:4b:0b
epair3a: link state
