Bug 382980

Summary:	valgrind crash on armv7
Product:	[Developer tools] valgrind	Reporter:	jason <fhvk2004>
Component:	memcheck	Assignee:	Julian Seward <jseward>
Status:	RESOLVED NOT A BUG
Severity:	crash
Priority:	NOR
Version First Reported In:	3.13.0
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description jason 2017-08-01 05:50:46 UTC

Unable to handle kernel paging request at virtual address bf1ec001
pgd = df244000
[bf1ec001] *pgd=5e9c4811, *pte=00000000, *ppte=00000000
Internal error: Oops: 807 [#1] SMP ARM
Modules linked in: stmmac
CPU: 1 PID: 894 Comm: memcheck-arm-li Not tainted 3.10.0_hi3536 #1
task: dfa3f400 ti: df238000 task.ti: df238000
PC is at _memcpy+0xcc/0x330
LR is at memcpy+0x64/0x6c
pc : [<c02c52ac>]    lr : [<c0017918>]    psr: 80000013
sp : df239dec  ip : 00000000  fp : 00000001
r10: 00000001  r9 : df239e8c  r8 : df239ed0
r7 : 00000000  r6 : df1dc000  r5 : 00000001  r4 : bf1ec001
r3 : 00000043  r2 : 80000000  r1 : df1dc001  r0 : bf1ec001
Flags: Nzcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c5387d  Table: 5f24406a  DAC: 00000015

PC: 0xc02c522c:
522c  e2522020 e8a051f8 aafffffa e3720060 aafffff9 e212c01c e26cc020 108ff00c
524c  ea000011 e320f000 e4913004 e4914004 e4915004 e4916004 e4917004 e4918004
526c  e491e004 e08ff00c e320f000 e320f000 e4803004 e4804004 e4805004 e4806004
528c  e4807004 e4808004 e480e004 e8bd01e0 e1b02f82 14d13001 24d14001 24d1c001
52ac  14c03001 24c04001 24c0c001 e8bd8011 e26cc004 e35c0002 c4d13001 a4d14001
52cc  e4d1e001 c4c03001 a4c04001 e052200c e4c0e001 baffffed e211c003 0affffc4
52ec  e3c11003 e35c0002 e491e004 0a00002c ca000057 e252201c ba00001f e92d03e0
530c  f5d1f000 e2522060 f5d1f01c ba000002 f5d1f03c f5d1f05c f5d1f07c e8b100f0

LR: 0xc0017898:
7898  e3500000 a8bd8070 e1a00006 e1a01005 e1a02004 e8bd4070 ea0aafba e3093ae4
78b8  e34c3070 e92d4070 e1a05002 e5933000 e1a04000 e1a06001 e1520503 3a00000b
78d8  e30f35f0 e34c3074 e5933000 e3530001 0a000003 e3530000 0a000004 e1a00004
78f8  e8bd8070 eb0f2bc5 e3500000 aafffffa e1a01006 e1a02005 e1a00004 eb0ab631
7918  e1a00004 e8bd8070 e92d40f8 e1a04001 e1d033b2 e1a07002 e1d053b0 e0833103
7938  e0855105 e0813183 e0815185 e5936010 e1510005 e0806006 3a000003 ea00000a
7958  e2844028 e1550004 9a000007 e5941000 e1a00007 e0861001 eb0ad35d e3500000
7978  1afffff6 e1a00004 e8bd80f8 e3a00000 e8bd80f8 e52de004 e30130d0 e24dd014

SP: 0xdf239d6c:
9d6c  00000000 de981b00 df239db8 df50fb90 df239d90 df239dc4 c04b9da8 c02c52ac
9d8c  80000013 ffffffff df239dd4 df239ed0 c0012b58 bf1ec001 df1dc001 80000000
9dac  00000043 bf1ec001 00000001 df1dc000 00000000 df239ed0 df239e8c 00000001
9dcc  00000001 00000000 df239dec c0017918 c02c52ac 80000013 ffffffff 00000000
9dec  bf1ec001 bf1ec001 c0017918 00000001 bf1ec000 df1dc001 c00a6010 df50fb90
9e0c  00000001 00000000 df239e8c 00000001 df1dc000 00000001 00000001 00000001
9e2c  00000000 c0535240 c00a6288 df238000 c00ca428 df521e40 df04da18 dfb8c900
9e4c  00000001 00000001 00000001 00000001 00000000 c0535240 c00c78dc 3361be3a

R1: 0xdf1dbf81:
bf80  00000000 00000000 00000000 00000000 00000000 00000000 de8ed842 de8edf40
bfa0  de8ed800 de8ed842 000008c0 00000001 00000000 00000000 00000000 00000000
bfc0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
bfe0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c000  55555543 55555555 55555555 55555555 55555555 55555555 55555555 55555555
c020  55555555 55555555 55555555 55555555 55555555 55555555 55555555 55555555
c040  55555555 55555555 55555555 55555555 55555555 55555555 55555555 55555555
c060  55555555 55555555 55555555 55555555 55555555 55555555 55555555 55555555
c080  55555555 55555555 55555555 55555555 55555555 55555555 55555555 55555555

R6: 0xdf1dbf80:
bf80  00000000 00000000 00000000 00000000 00000000 00000000 de8ed842 de8edf40
bfa0  de8ed800 de8ed842 000008c0 00000001 00000000 00000000 00000000 00000000
bfc0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
bfe0  00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
c000  55555543 55555555 55555555 55555555 55555555 55555555 55555555 55555555
c020  55555555 55555555 55555555 55555555 55555555 55555555 55555555 55555555
c040  55555555 55555555 55555555 55555555 55555555 55555555 55555555 55555555
c060  55555555 55555555 55555555 55555555 55555555 55555555 55555555 55555555

R8: 0xdf239e50:
9e50  00000001 00000001 00000001 00000000 c0535240 c00c78dc 3361be3a df04da00
9e70  00000000 00000000 df238000 df1b2d80 dfb8c918 dfb8c950 df239ec0 ffffff9c
9e90  00000000 00000001 df239ed0 00000001 df239ebc 00000000 00000000 00000001
9eb0  df239f80 df1b2d80 dfa3f400 00000000 6273ddc4 c00bf7b4 00000000 00000000
9ed0  6273dd8c 00000001 00000001 df1b2d80 00000000 00000000 00000000 dfa3f400
9ef0  00000000 00000000 00000000 00000000 00000000 00000000 00000001 00000000
9f10  00000001 00000000 00000000 00000000 00000000 00000000 00000000 00000000
9f30  00000000 00000000 00000000 df1b2d80 6273dd8c df238018 df239f80 00000000

R9: 0xdf239e0c:
9e0c  00000001 00000000 df239e8c 00000001 df1dc000 00000001 00000001 00000001
9e2c  00000000 c0535240 c00a6288 df238000 c00ca428 df521e40 df04da18 dfb8c900
9e4c  00000001 00000001 00000001 00000001 00000000 c0535240 c00c78dc 3361be3a
9e6c  df04da00 00000000 00000000 df238000 df1b2d80 dfb8c918 dfb8c950 df239ec0
9e8c  ffffff9c 00000000 00000001 df239ed0 00000001 df239ebc 00000000 00000000
9eac  00000001 df239f80 df1b2d80 dfa3f400 00000000 6273ddc4 c00bf7b4 00000000
9ecc  00000000 6273dd8c 00000001 00000001 df1b2d80 00000000 00000000 00000000
9eec  dfa3f400 00000000 00000000 00000000 00000000 00000000 00000000 00000001
Process memcheck-arm-li (pid: 894, stack limit = 0xdf238238)
Stack: (0xdf239dec to 0xdf23a000)
9de0:                            bf1ec001 bf1ec001 c0017918 00000001 bf1ec000
9e00: df1dc001 c00a6010 df50fb90 00000001 00000000 df239e8c 00000001 df1dc000
9e20: 00000001 00000001 00000001 00000000 c0535240 c00a6288 df238000 c00ca428
9e40: df521e40 df04da18 dfb8c900 00000001 00000001 00000001 00000001 00000000
9e60: c0535240 c00c78dc 3361be3a df04da00 00000000 00000000 df238000 df1b2d80
9e80: dfb8c918 dfb8c950 df239ec0 ffffff9c 00000000 00000001 df239ed0 00000001
9ea0: df239ebc 00000000 00000000 00000001 df239f80 df1b2d80 dfa3f400 00000000
9ec0: 6273ddc4 c00bf7b4 00000000 00000000 6273dd8c 00000001 00000001 df1b2d80
9ee0: 00000000 00000000 00000000 dfa3f400 00000000 00000000 00000000 00000000
9f00: 00000000 00000000 00000001 00000000 00000001 00000000 00000000 00000000
9f20: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 df1b2d80
9f40: 6273dd8c df238018 df239f80 00000000 00000001 c00bfe08 df239f70 c0035b10
9f60: 00000002 00000000 00000000 df1b2d80 6273dd8c 00000000 00000001 c00c0584
9f80: 00000000 00000000 fffbfa27 00000000 00000000 614bec80 00000003 c0013128
9fa0: df238000 c0012f80 00000000 00000000 00000404 6273dd8c 00000001 00000000
9fc0: 00000000 00000000 614bec80 00000003 00000000 5823f197 6273de04 6273ddc4
9fe0: 00000000 6273dd34 58055714 58055554 80000010 00000404 00000000 00000000
Code: e1b02f82 14d13001 24d14001 24d1c001 (14c03001) 
---[ end trace 70551931a67eec44 ]---
note: memcheck-arm-li[894] exited with preempt_count 2

Comment 1 Julian Seward 2018-07-25 06:44:45 UTC

This seems like a bug in the kernel that was running, nothing
to do with valgrind.