diff options
| author | yalin wang <[email protected]> | 2016-01-21 16:40:30 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2016-01-21 17:20:51 -0800 |
| commit | 16fd0fe4aa92d0d621ecfe21de86f7fdcfa41947 (patch) | |
| tree | d94d862bb32b160dcacb5467c099f52748f5f1dd /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | 7162a1e87b3e380133dadc7909081bb70d0a7041 (diff) | |
mm: fix kernel crash in khugepaged thread
This crash is caused by NULL pointer deference, in page_to_pfn() marco,
when page == NULL :
Unable to handle kernel NULL pointer dereference at virtual address 00000000
Internal error: Oops: 94000006 [#1] SMP
Modules linked in:
CPU: 1 PID: 26 Comm: khugepaged Tainted: G W 4.3.0-rc6-next-20151022ajb-00001-g32f3386-dirty #3
PC is at khugepaged+0x378/0x1af8
LR is at khugepaged+0x418/0x1af8
Process khugepaged (pid: 26, stack limit = 0xffffffc079638020)
Call trace:
khugepaged+0x378/0x1af8
kthread+0xdc/0xf4
ret_from_fork+0xc/0x40
Code: 35001700 f0002c60 aa0703e3 f9009fa0 (f94000e0)
---[ end trace 637503d8e28ae69e ]---
Kernel panic - not syncing: Fatal exception
CPU2: stopping
CPU: 2 PID: 0 Comm: swapper/2 Tainted: G D W 4.3.0-rc6-next-20151022ajb-00001-g32f3386-dirty #3
Hardware name: linux,dummy-virt (DT)
[[email protected]: fix fat-fingered merge resolution]
Signed-off-by: yalin wang <[email protected]>
Acked-by: Vlastimil Babka <[email protected]>
Acked-by: Kirill A. Shutemov <[email protected]>
Acked-by: David Rientjes <[email protected]>
Cc: Cyrill Gorcunov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions