Date: Mon, 13 Jul 2020 14:05:38 +0000 From: Glen Barber <gjb@freebsd.org> To: freebsd-current@freebsd.org Subject: Re: arm64 panic: reaper-related? Message-ID: <20200713140538.GA46078@FreeBSD.org> In-Reply-To: <20200713135821.GS61041@FreeBSD.org> References: <20200713135821.GS61041@FreeBSD.org>
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--8t9RHnE3ZwKMSgU+ Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Jul 13, 2020 at 01:58:21PM +0000, Glen Barber wrote: > Hi, >=20 > This morning, one of our arm64 build machines panicked. It looks like > it is somehow reaper-related, but I am not entirely sure. Backtrace > follows. Any thoughts? I'm not quite sure where to go from here... > Thanks in advance for any input. >=20 > db> set $lines 0 > db> bt > Tracing pid 11 tid 100003 td 0xfffffd0001634000 > db_trace_self() at db_stack_trace+0xf8 > pc =3D 0xffff00000075fdac lr =3D 0xffff000000103e78 > sp =3D 0xffff00011eca89b0 fp =3D 0xffff00011eca89e0 >=20 > db_stack_trace() at db_command+0x228 > pc =3D 0xffff000000103e78 lr =3D 0xffff000000103af0 > sp =3D 0xffff00011eca89f0 fp =3D 0xffff00011eca8ad0 >=20 > db_command() at db_command_loop+0x58 > pc =3D 0xffff000000103af0 lr =3D 0xffff000000103898 > sp =3D 0xffff00011eca8ae0 fp =3D 0xffff00011eca8b00 >=20 > db_command_loop() at db_trap+0xf4 > pc =3D 0xffff000000103898 lr =3D 0xffff000000106c0c > sp =3D 0xffff00011eca8b10 fp =3D 0xffff00011eca8d30 >=20 > db_trap() at kdb pc =3D 0xffff000000106c0c lr =3D 0xffff00000046= 3b0c > sp =3D 0xffff00011eca8d40 fp =3D 0xffff00011eca8df0 >=20 > kdb_trap() at do_el1h_sync+0xf4 > pc =3D 0xffff000000463b0c lr =3D 0xffff00000077b448 > sp =3D 0xffff00011eca8e00 fp =3D 0xffff00011eca8e30 >=20 > do_el1h_sync() at handle_el1h_sync+0x78 > pc =3D 0xffff00000077b448 lr =3D 0xffff000000762878 > sp =3D 0xffff00011eca8e40 fp =3D 0xffff00011eca8f50 >=20 > handle_el1h_sync() at kdb_enter+0x34 > pc =3D 0xffff000000762878 lr =3D 0xffff000000463168 > sp =3D 0xffff00011eca8f60 fp =3D 0xffff00011eca8ff0 >=20 > kdb_enter() at vpanic+0x1b0 > pc =3D 0xffff000000463168 lr =3D 0xffff000000417a74 > sp =3D 0xffff00011eca9000 fp =3D 0xffff00011eca90b0 >=20 > vpanic() at panic+0x44 > pc =3D 0xffff000000417a74 lr =3D 0xffff0000004178c0 > sp =3D 0xffff00011eca90c0 fp =3D 0xffff00011eca9140 >=20 > panic() at __stack_chk_fail+0x10 > pc =3D 0xffff0000004178c0 lr =3D 0xffff00000044ab6c > sp =3D 0xffff00011eca9150 fp =3D 0xffff00011eca9150 >=20 > __stack_chk_fail() at putchar+0x2bc > pc =3D 0xffff00000044ab6c lr =3D 0xffff000000469ce8 > sp =3D 0xffff00011eca9160 fp =3D 0xffff00011eca91e0 >=20 > putchar() at 0x106 > pc =3D 0xffff000000469ce8 lr =3D 0x0000000000000106 > sp =3D 0xffff00011eca91f0 fp =3D 0x0000000000000000 >=20 > db> show proc 11 > Process 11 (idle) at 0xfffffd0001630000: > state: NORMAL > uid: 0 gids: 0 > parent: pid 0 at 0xffff0000010fae40 > ABI: null > reaper: 0xffff0000010fae40 reapsubtree: 11 > sigparent: 20 > vmspace: 0xffff000001109200 > (map 0xffff000001109200) > (map.pmap 0xffff0000011092c0) > (pmap 0xffff000001109320) > threads: 48 > 100003 Run CPU -1 [idle: cpu0] > 100004 Run CPU 1 [idle: cpu1] > 100005 Run CPU 2 [idle: cpu2] > 100006 Run CPU 3 [idle: cpu3] > 100007 Run CPU 4 [idle: cpu4] > 100008 Run CPU 5 [idle: cpu5] > 100009 Run CPU 6 [idle: cpu6] > 100010 Run CPU 7 [idle: cpu7] > 100011 Run CPU 8 [idle: cpu8] > 100012 CanRun [idle: cpu9] > 100013 Run CPU 10 [idle: cpu10] > 100014 Run CPU 11 [idle: cpu11] > 100015 Run CPU 12 [idle: cpu12] > 100016 Run CPU 13 [idle: cpu13] > 100017 Run CPU 14 [idle: cpu14] > 100018 Run CPU 15 [idle: cpu15] > 100019 Run CPU 16 [idle: cpu16] > 100020 Run CPU 17 [idle: cpu17] > 100021 Run CPU 18 [idle: cpu18] > 100022 Run CPU 19 [idle: cpu19] > 100023 Run CPU 20 [idle: cpu20] > 100024 Run CPU 21 [idle: cpu21] > 100025 Run CPU 22 [idle: cpu22] > 100026 Run CPU 23 [idle: cpu23] > 100027 Run CPU 24 [idle: cpu24] > 100028 Run CPU 25 [idle: cpu25] > 100029 Run CPU 26 [idle: cpu26] > 100030 CanRun [idle: cpu27] > 100031 Run CPU 28 [idle: cpu28] > 100032 Run CPU 29 [idle: cpu29] > 100033 Run CPU 30 [idle: cpu30] > 100034 Run CPU 31 [idle: cpu31] > 100035 Run CPU 32 [idle: cpu32] > 100036 Run CPU 33 [idle: cpu33] > 100037 Run CPU 34 [idle: cpu34] > 100038 Run CPU 35 [idle: cpu35] > 100039 Run CPU 36 [idle: cpu36] > 100040 Run CPU 37 [idle: cpu37] > 100041 Run CPU 38 [idle: cpu38] > 100042 Run CPU 39 [idle: cpu39] > 100043 Run CPU 40 [idle: cpu40] > 100044 Run CPU 41 [idle: cpu41] > 100045 Run CPU 42 [idle: cpu42] > 100046 Run CPU 43 [idle: cpu43] > 100047 Run CPU 44 [idle: cpu44] > 100048 Run CPU 45 [idle: cpu45] > 100049 Run CPU 46 [idle: cpu46] > 100050 Run CPU 47 [idle: cpu47] >=20 >=20 I should have included this as well... db> show panic panic: Misaligned access from kernel space! 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