Issue 586711 in chromium: Crash in reservation_object_get_fences_rcu() in veyron_speedy paladin

[chro...@googlecode.com]

Status: Untriaged
Owner: mar...@chromium.org
CC: dgar...@chromium.org
Labels: Type-Bug Pri-2 Cr-OS-Kernel-Graphics OS-Chrome

New issue 586711 by dian...@chromium.org: Crash in
reservation_object_get_fences_rcu() in veyron_speedy paladin
https://code.google.com/p/chromium/issues/detail?id=586711

Noticed in:

https://uberchromegw.corp.google.com/i/chromeos/builders/veyron_speedy%20paladin/builds/1036

Don't see any changes that ought to be at fault, so maybe this is a flaky
crash?

---

Digging into
<https://pantheon.corp.google.com/storage/browser/chromeos-autotest-results/53921600-chromeos-test/chromeos4-row4-rack11-host9/crashinfo.chromeos4-row4-rack11-host9/?debugUI=DEVELOPERS>

---

[ 307.473335] Unable to handle kernel NULL pointer dereference at virtual
address 00000000
[ 307.473354] pgd = e7fec000
[ 307.473360] [00000000] *pgd=00000000
[ 307.473371] Internal error: Oops: 5 [#1] PREEMPT SMP ARM
[ 307.473379] Modules linked in: i2c_dev uinput smsc95xx smsc75xx uvcvideo
usbnet rfcomm videobuf2_vmalloc iio_trig_sysfs zram cros_ec_accel kfifo_buf
fuse nf_conntrack_ipv6 nf_defrag_ipv6 ip6table_filter ip6_tables hci_uart
bluetooth brcmfmac brcmutil cfg80211 joydev snd_seq_midi snd_seq_midi_event
snd_rawmidi snd_seq snd_seq_device ppp_async ppp_generic slhc tun
[ 307.473480] CPU: 1 PID: 18367 Comm: mali-renderer Not tainted 3.14.0 #1
[ 307.473490] task: e06f1200 ti: e7f4a000 task.ti: e7f4a000
[ 307.473504] PC is at reservation_object_get_fences_rcu+0x144/0x260
[ 307.473514] LR is at 0x6f620204
[ 307.473522] pc : [<c041e3e4>] lr : [<6f620204>] psr: 80000013
[ 307.473522] sp : e7f4bac8 ip : 00000000 fp : e7f4bb04
[ 307.473533] r10: ebc48280 r9 : e7f4bb10 r8 : 00000010
[ 307.473540] r7 : e872b894 r6 : 00000000 r5 : 00000001 r4 : ecb2e600
[ 307.473548] r3 : 00000006 r2 : 00000000 r1 : 00000002 r0 : 00000001
[ 307.473557] Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment
user
[ 307.473567] Control: 10c5387d Table: 27fec06a DAC: 00000015
[ 307.473574]
[ 307.473574] PC: 0xc041e364:
[ 307.473581] e364 f57ff05b e5972028 e51b3030 e1520003 1a00004e e3540000
15942000 1a00000b
[ 307.473606] e384 e3a06000 ea000012 e1940f9f e3a0c000 e1300002 0184cf91
e35c0000 1afffff9
[ 307.473630] e3a4 f57ff05b e1500002 0afffff4 e1a02000 e3520000 0a00003d
e2821001 f57ff05b
[ 307.473655] e3c4 eafffff0 e3510000 13520000 0a000016 e2866001 e1560005
0a000032 e79a2106
[ 307.473679] e3e4 e5921000 e3510000 0afffff5 e2810001 f57ff05b e192cf9f
e3a0e000 e13c0001
[ 307.473703] e404 0182ef90 e35e0000 1afffff9 f57ff05b e15c0001 0affffea
e1a0100c eafffff0
[ 307.473726] e424 e79a0106 e3500000 1a000002 e2566001 2afffffa ea00000a
f57ff05b e1902f9f
[ 307.473751] e444 e2422001 e1801f92 e3310000 1afffffa f57ff05b e3520000
1afffff3 ebfffe01
[ 307.473775]
[ 307.473775] SP: 0xe7f4ba48:
[ 307.473781] ba48 00000010 00000000 e7f4ba9c bd94362e c021253c c041e3e4
80000013 ffffffff
[ 307.473805] ba68 e7f4bab4 00000010 e7f4bb04 e7f4ba80 c010b258 c0100194
00000001 00000002
[ 307.473829] ba88 00000000 00000006 ecb2e600 00000001 00000000 e872b894
00000010 e7f4bb10
[ 307.473852] baa8 ebc48280 e7f4bb04 00000000 e7f4bac8 6f620204 c041e3e4
80000013 ffffffff
[ 307.473876] bac8 00000000 e7f4bb0c e7f4bb08 00000006 e7f4bb34 c0b08408
f1ab4540 00000000
[ 307.473899] bae8 ebc48940 00000002 00000002 00000000 e7f4bb34 e7f4bb08
c03bf124 c041e2ac
[ 307.473923] bb08 00000002 00000000 00000000 bd94362e f1ab44b0 f1aad000
00000000 ebc48940
[ 307.473947] bb28 e7f4bbb4 e7f4bb38 c03d7f54 c03bf0e4 f1b04034 00000401
0000702e 00000004
[ 307.473971]
[ 307.473971] FP: 0xe7f4ba84:
[ 307.473978] ba84 00000002 00000000 00000006 ecb2e600 00000001 00000000
e872b894 00000010
[ 307.474001] baa4 e7f4bb10 ebc48280 e7f4bb04 00000000 e7f4bac8 6f620204
c041e3e4 80000013
[ 307.474025] bac4 ffffffff 00000000 e7f4bb0c e7f4bb08 00000006 e7f4bb34
c0b08408 f1ab4540
[ 307.474048] bae4 00000000 ebc48940 00000002 00000002 00000000 e7f4bb34
e7f4bb08 c03bf124
[ 307.474073] bb04 c041e2ac 00000002 00000000 00000000 bd94362e f1ab44b0
f1aad000 00000000
[ 307.474096] bb24 ebc48940 e7f4bbb4 e7f4bb38 c03d7f54 c03bf0e4 f1b04034
00000401 0000702e
[ 307.474120] bb44 00000004 f1aad000 00000001 f1b04034 00000001 00000002
ebc48498 ebc48100
[ 307.474144] bb64 ebc48c00 f1ab4540 00000000 ee008b94 00000002 e06f1200
00000497 00000002
[ 307.474169]
[ 307.474169] R4: 0xecb2e580:
[ 307.474175] e580 00000000 ee04899c e8f17be0 00000002 2d796465 76697270
2d657461 2e302e30
[ 307.474198] e5a0 38722d31 7562652e 00646c69 00000000 00000000 00000000
00000000 00000000
[ 307.474221] e5c0 e7c4802c ecb2ed80 edf7fe40 c0b15500 00000000 ecb2e5d4
ecb2e5d4 00000000
[ 307.474246] e5e0 dead4ead ffffffff ffffffff 00000000 00000000 00000000
00000000 00000000
[ 307.474270] e600 00000002 c0734dbc 00000000 00000000 ecb2e610 ecb2e610
c0b2a658 0000000e
[ 307.474294] e620 00000004 00000001 136bed29 00000047 00000000 00000000
00000000 00000000
[ 307.474318] e640 63736d73 78783539 ecb2e200 edb62ec8 00000000 00000000
0000db3e 7063010c
[ 307.474342] e660 65726675 6f632e71 0000666e 00000000 00000000 00000000
00000000 00000000
[ 307.474367]
[ 307.474367] R7: 0xe872b814:
[ 307.474372] b814 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.474396] b834 00000000 00000000 00000000 00401000 e8475200 ebc48208
ebc48208 c0734ce4
[ 307.474420] b854 00000001 00000000 dead4ead ffffffff ffffffff e872b868
e872b868 00000000
[ 307.474442] b874 00000000 00000000 00000000 c084e0bc e7cde944 e8764104
e872b300 e872b894
[ 307.474468] b894 00000000 00000000 dead4ead ffffffff ffffffff e872b8a8
e872b8a8 e06f1200
[ 307.474494] b8b4 00000000 e7f4bb78 00000006 ecb2e600 e84dc840 00000000
00000000 00000000
[ 307.474520] b8d4 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.474545] b8f4 00000000 00000000 00000000 002b002b dead4ead ffffffff
ffffffff 00000001
[ 307.474574]
[ 307.474574] R9: 0xe7f4ba90:
[ 307.474580] ba90 ecb2e600 00000001 00000000 e872b894 00000010 e7f4bb10
ebc48280 e7f4bb04
[ 307.474605] bab0 00000000 e7f4bac8 6f620204 c041e3e4 80000013 ffffffff
00000000 e7f4bb0c
[ 307.474629] bad0 e7f4bb08 00000006 e7f4bb34 c0b08408 f1ab4540 00000000
ebc48940 00000002
[ 307.474654] baf0 00000002 00000000 e7f4bb34 e7f4bb08 c03bf124 c041e2ac
00000002 00000000
[ 307.474678] bb10 00000000 bd94362e f1ab44b0 f1aad000 00000000 ebc48940
e7f4bbb4 e7f4bb38
[ 307.474701] bb30 c03d7f54 c03bf0e4 f1b04034 00000401 0000702e 00000004
f1aad000 00000001
[ 307.474725] bb50 f1b04034 00000001 00000002 ebc48498 ebc48100 ebc48c00
f1ab4540 00000000
[ 307.474748] bb70 ee008b94 00000002 e06f1200 00000497 00000002 bd94362e
e7f4bba4 b8d74a08
[ 307.474773]
[ 307.474773] R10: 0xebc48200:
[ 307.474779] 8200 e872b840 ee2cba10 e872b848 e872b848 ebc48380 00000000
00000000 00000000
[ 307.474803] 8220 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.474826] 8240 ecb2ef01 00000000 00000000 00000000 00000000 f1aad000
00109c75 00000000
[ 307.474850] 8260 00000401 0000702e 00000000 f1af7000 f1af7000 00000000
00000000 00000000
[ 307.474874] 8280 00000000 00000000 00000010 6f620204 00000000 00000000
00000010 6f620204
[ 307.474901] 82a0 0000746f 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.474924] 82c0 ebc489c0 ebc48240 00000000 00000000 00000000 f1aad000
00109c34 00000000
[ 307.474948] 82e0 00000041 0000304a 00000000 e3961800 e3961800 00000000
00000000 00000000
[ 307.474973] Process mali-renderer (pid: 18367, stack limit = 0xe7f4a250)
[ 307.474982] Stack: (0xe7f4bac8 to 0xe7f4c000)
[ 307.474991] bac0: 00000000 e7f4bb0c e7f4bb08 00000006
e7f4bb34 c0b08408
[ 307.475001] bae0: f1ab4540 00000000 ebc48940 00000002 00000002 00000000
e7f4bb34 e7f4bb08
[ 307.475011] bb00: c03bf124 c041e2ac 00000002 00000000 00000000 bd94362e
f1ab44b0 f1aad000
[ 307.475021] bb20: 00000000 ebc48940 e7f4bbb4 e7f4bb38 c03d7f54 c03bf0e4
f1b04034 00000401
[ 307.475031] bb40: 0000702e 00000004 f1aad000 00000001 f1b04034 00000001
00000002 ebc48498
[ 307.475041] bb60: ebc48100 ebc48c00 f1ab4540 00000000 ee008b94 00000002
e06f1200 00000497
[ 307.475052] bb80: 00000002 bd94362e e7f4bba4 b8d74a08 edb32000 f1aad000
e7f4bcb8 e7f4a000
[ 307.475062] bba0: e7f4a008 f1ab42d8 e7f4bc84 e7f4bbb8 c03d86f8 c03d77bc
ee7b2018 edb33000
[ 307.475072] bbc0: 00000030 00000000 000072d8 00000001 f1aad128 00000001
c0156cc0 c01647b8
[ 307.475082] bbe0: 000001e9 00000000 8faeaefd 00000010 aab50900 00000000
b8d67618 00000000
[ 307.475092] bc00: 00000000 00000000 ba0b8028 00000000 01010002 02670168
00000069 00000000
[ 307.475102] bc20: 000001c4 0000bee2 00000001 00000000 00000011 00000000
c010b2c0 c0100364
[ 307.475113] bc40: 00000000 ee7b2018 00000001 00000001 00000002 bd94362e
c0b097e4 e7f4bcb8
[ 307.475123] bc60: f1aad000 ebd62800 ae7e7bc8 00000018 e7f4a008 ae7e7bc8
e7f4bf04 e7f4bc88
[ 307.475134] bc80: c03e3900 c03d8478 ffffffff ffffffff e87ba000 c01444e4
ffffffff c067cc2c
[ 307.475143] bca0: e06f1e00 00000000 e7f4bcc4 e7f4bcb8 c0b08408 edb32000
00000000 b8d75414
[ 307.475153] bcc0: b8d749a8 b8d73838 00000003 00000030 00000000 00000000
00000000 00000000
[ 307.475163] bce0: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475173] bd00: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475182] bd20: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475193] bd40: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475203] bd60: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475214] bd80: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475223] bda0: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475233] bdc0: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475244] bde0: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475253] be00: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475263] be20: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475272] be40: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475282] be60: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475292] be80: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475302] bea0: 00000000 00000000 00000000 00000000 00000000 00000000
00000000 00000000
[ 307.475312] bec0: 00000000 00000000 00000000 00000000 c05a8ea0 bd94362e
e7f4a000 ae7e7bc8
[ 307.475322] bee0: edb125c8 ebd62800 ae7e7bc8 c018821c 0000000b 00000180
e7f4bf7c e7f4bf08
[ 307.475332] bf00: c02291a0 c03e32d8 e7f4bf34 c067cb8c ee0089c0 c0b08408
e7f4bf34 00000000
[ 307.475343] bf20: c0b08408 c0232e30 00000018 ebd62800 e7f4bf5c e7f4bf40
c0232e30 c01746a4
[ 307.475354] bf40: e7c9e500 b1872eb0 00000030 bd94362e e7f4bf6c 00000000
ebd62800 ebd62801
[ 307.475364] bf60: ae7e7bc8 c018821c 0000000b 00000180 e7f4bfa4 e7f4bf80
c0229310 c0228d18
[ 307.475373] bf80: b1872eb0 00000030 0000021c 00000036 c01065a4 e7f4a000
00000000 e7f4bfa8
[ 307.475383] bfa0: c0106578 c02292c0 b1872eb0 00000030 0000000b c018821c
ae7e7bc8 ae7e7bc8
[ 307.475394] bfc0: b1872eb0 00000030 0000021c 00000036 00000003 b8d749a8
aab50940 00000002
[ 307.475404] bfe0: b024dd64 ae7e7bbc b0158cdf b10ffea6 00000030 0000000b
00000000 00000000
[ 307.475424] [<c041e3e4>] (reservation_object_get_fences_rcu) from
[<c03bf124>] (drm_reservation_cb_add+0x4c/0x17c)
[ 307.475440] [<c03bf124>] (drm_reservation_cb_add) from [<c03d7f54>]
(jd_submit_atom+0x7a4/0xcbc)
[ 307.475452] [<c03d7f54>] (jd_submit_atom) from [<c03d86f8>]
(kbase_jd_submit+0x28c/0x31c)
[ 307.475464] [<c03d86f8>] (kbase_jd_submit) from [<c03e3900>]
(kbase_ioctl+0x634/0xa64)
[ 307.475479] [<c03e3900>] (kbase_ioctl) from [<c02291a0>]
(do_vfs_ioctl+0x494/0x5a8)
[ 307.475491] [<c02291a0>] (do_vfs_ioctl) from [<c0229310>]
(SyS_ioctl+0x5c/0x84)
[ 307.475504] [<c0229310>] (SyS_ioctl) from [<c0106578>]
(__sys_trace_return+0x0/0x28)
[ 307.475516] Code: e2866001 e1560005 0a000032 e79a2106 (e5921000)
[ 307.475540] ---[ end trace 6947fe475b57eafa ]---
[ 307.477994] Kernel panic - not syncing: Fatal exception
[ 307.478011] CPU0: stopping
[ 307.478022] CPU: 0 PID: 502 Comm: rs:main Q:Reg Tainted: G D
3.14.0 #1
[ 307.478045] [<c010e27c>] (unwind_backtrace) from [<c010a6c0>]
(show_stack+0x20/0x24)
[ 307.478061] [<c010a6c0>] (show_stack) from [<c0677f38>]
(dump_stack+0x7c/0xc0)
[ 307.478074] [<c0677f38>] (dump_stack) from [<c010c98c>]
(handle_IPI+0xdc/0x1c8)
[ 307.478085] [<c010c98c>] (handle_IPI) from [<c01003bc>]
(gic_handle_irq+0x64/0x6c)
[ 307.478094] [<c01003bc>] (gic_handle_irq) from [<c010b480>]
(__irq_usr+0x40/0x60)
[ 307.478102] Exception stack(0xe83edfb0 to 0xe83edff8)
[ 307.478110] dfa0: 00000000 00000000
8ebd2200 8ebd2200
[ 307.478120] dfc0: b75d2280 b65009b0 b6ff1624 b6e4f930 b6fef31c b6fef31c
b6fef31c b6fef31c
[ 307.478129] dfe0: 00000000 b6e4f930 00000001 b6fc7ba0 80030030 ffffffff
[ 307.478137] CPU3: stopping
[ 307.478145] CPU: 3 PID: 18413 Comm: WorkerPool/9 Tainted: G D
3.14.0 #1
[ 307.478159] [<c010e27c>] (unwind_backtrace) from [<c010a6c0>]
(show_stack+0x20/0x24)
[ 307.478171] [<c010a6c0>] (show_stack) from [<c0677f38>]
(dump_stack+0x7c/0xc0)
[ 307.478181] [<c0677f38>] (dump_stack) from [<c010c98c>]
(handle_IPI+0xdc/0x1c8)
[ 307.478191] [<c010c98c>] (handle_IPI) from [<c01003bc>]
(gic_handle_irq+0x64/0x6c)
[ 307.478201] [<c01003bc>] (gic_handle_irq) from [<c010b480>]
(__irq_usr+0x40/0x60)
[ 307.478209] Exception stack(0xdef57fb0 to 0xdef57ff8)
[ 307.478216] 7fa0: a83fe830 28508869
00000004 a83fe918
[ 307.478228] 7fc0: 00000001 a83fe940 b7e3f008 a83fe828 a83fe910 a83fe918
b7238b7c a83fe988
[ 307.478238] 7fe0: 000000b4 a83fe828 00000004 b2db9a66 800b0030 ffffffff
[ 307.478248] CPU2: stopping
[ 307.478258] CPU: 2 PID: 18396 Comm: chrome Tainted: G D 3.14.0
#1
[ 307.478271] [<c010e27c>] (unwind_backtrace) from [<c010a6c0>]
(show_stack+0x20/0x24)
[ 307.478283] [<c010a6c0>] (show_stack) from [<c0677f38>]
(dump_stack+0x7c/0xc0)
[ 307.478293] [<c0677f38>] (dump_stack) from [<c010c98c>]
(handle_IPI+0xdc/0x1c8)
[ 307.478303] [<c010c98c>] (handle_IPI) from [<c01003bc>]
(gic_handle_irq+0x64/0x6c)
[ 307.478313] [<c01003bc>] (gic_handle_irq) from [<c010b480>]
(__irq_usr+0x40/0x60)
[ 307.478320] Exception stack(0xe392dfb0 to 0xe392dff8)
[ 307.478328] dfa0: b7f26000 fffa6fb4
b7f26000 00000000
[ 307.478339] dfc0: b7f2a000 b7cb924c b7232c58 beea9e5c 0000024c 00004000
b7f26000 b725fb84
[ 307.478348] dfe0: 000000c4 beea9e5c 00000000 b65cc3ee 800f0030 ffffffff

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[chro...@googlecode.com]

Updates:
Cc: db...@chromium.org

Comment #2 on issue 586711 by mar...@chromium.org: Crash in

reservation_object_get_fences_rcu() in veyron_speedy paladin
https://code.google.com/p/chromium/issues/detail?id=586711

(No comment was entered for this change.)

[chro...@googlecode.com]

Issue 586711: Crash in reservation_object_get_fences_rcu() in veyron_speedy
paladin
https://code.google.com/p/chromium/issues/detail?id=586711

This issue is now blocking issue chrome-os-partner:50423.
See https://code.google.com/p/chrome-os-partner/issues/detail?id=50423

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