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Bug #4938

open

Core dump, null pointer in module unix

Added by Christoffer Engvall about 8 years ago.

Status:
New
Priority:
Normal
Assignee:
-
Category:
kernel
Start date:
2014-06-25
Due date:
% Done:

0%

Estimated time:
Difficulty:
Medium
Tags:
needs-triage
Gerrit CR:

Description

Hello!

We got this kernel panic and core dump some days ago. Looks quite dangerous since its thrown from the unix kernel(?) itself.
We are using OmniOS but since the core is illumos they redirected me to this bug tracker.

I am unable to reproduce it. It happened when i ran a simple dd benchmark on a zpool consisting of 8 crucial M500 960GB SSD drives.
- time sh -c "dd if=/dev/zero of=/ssdPoolOne/ bs=2M count=2000

The server is running SunOS SanOne 5.11 omnios-8c08411 i86pc i386 i86pc

I also have the vmdump.0 (860Mbyte) if needed.

Any additional information needed?

root@SanOne:~# fmdump -Vp -u 2093b94f-eb57-4504-8835-9e8a811dbe48
TIME UUID SUNW-MSG-ID
Jun 23 2014 12:14:56.877855000 2093b94f-eb57-4504-8835-9e8a811dbe48 SUNOS-8000-KL

TIME                 CLASS                                 ENA
Jun 23 12:14:56.8170 ireport.os.sunos.panic.dump_available 0x0000000000000000
Jun 23 12:14:33.8171 ireport.os.sunos.panic.dump_pending_on_device 0x0000000000000000

nvlist version: 0
version = 0x0
class = list.suspect
uuid = 2093b94f-eb57-4504-8835-9e8a811dbe48
code = SUNOS-8000-KL
diag-time = 1403518496 824914
de = fmd:///module/software-diagnosis
fault-list-sz = 0x1
fault-list = (array of embedded nvlists)
(start fault-list0)
nvlist version: 0
version = 0x0
class = defect.sunos.kernel.panic
certainty = 0x64
asru = sw:///:path=/var/crash/unknown/.2093b94f-eb57-4504-8835-9e8a811dbe48
resource = sw:///:path=/var/crash/unknown/.2093b94f-eb57-4504-8835-9e8a811dbe48
savecore-succcess = 1
dump-dir = /var/crash/unknown
dump-files = vmdump.0
os-instance-uuid = 2093b94f-eb57-4504-8835-9e8a811dbe48
panicstr = BAD TRAP: type=e (#pf Page fault) rp=ffffff003f766860 addr=60 occurred in module "unix" due to a NULL pointer dereference
panicstack = unix:die+df () | unix:trap+db3 () | unix:cmntrap+e6 () | unix:rw_exit+0 () | genunix:vn_createat+394 () | genunix:vn_openat+1bb () | genunix:copen+20c () | genunix:openat64+2a () | genunix:open64+25 () | unix:brand_sys_sysenter+1c9 () |
crashtime = 1403513627
panic-time = Mon Jun 23 10:53:47 2014 CEST
(end fault-list0)

fault-status = 0x1
severity = Major
__ttl = 0x1
__tod = 0x53a7fe20 0x34530118

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