[meta-freescale] Kernel crashes

[Lee Page]

Hi,

Using i.MX6dl with branch master revision
c3c1d2616e59ba314c6ff602b99909da632a11d5

Several crashes have occurred with this build. The kernel appears to
panic due to null pointer dereference, each time the address can differ.
Suspect an issue with the graphics module but not clear at this stage.
Wondered if anyone else has encountered similar issues.


Samples crashes from xorg log files.

Unable to handle kernel paging request at virtual address ffedf135

Unable to handle kernel NULL pointer dereference at virtual address
00000003

Unable to handle kernel NULL pointer dereference at virtual address
00000017

Unable to handle kernel paging request at virtual address fffffffc

Unable to handle kernel paging request at virtual address ff2518b5


Snippet from Xorg log file.

Unable to handle kernel NULL pointer dereference at virtual address
00000003
pgd = ba414000
[00000003] *pgd=4a0e7831, *pte=00000000, *ppte=00000000
Internal error: Oops: 817 [#1] PREEMPT SMP
Modules linked in: vivante drm ov5640_camera ov5640_camera_mipi
ov5642_camera camera_sensor_clock
CPU: 0    Not tainted  (3.0.35-4.0.0+yocto+g3383d80 #1)
PC is at __d_instantiate+0x40/0xfc
LR is at __d_instantiate+0x18/0xfc
pc : [<8013237c>]    lr : [<80132354>]    psr: 40070013
sp : ba3cbeb0  ip : a72a632c  fp : 00000000
r10: 00000000  r9 : ba3cbedc  r8 : 00000000
r7 : 00000000  r6 : bbc9db74  r5 : a72a6250  r4 : bbc9db28
r3 : a72a62b0  r2 : bbc9dba4  r1 : ffffffff  r0 : bbc9db74
Flags: nZcv  IRQs on  FIQs on  Mode SVC_32  ISA ARM  Segment user
Control: 10c53c7d  Table: 4a41404a  DAC: 00000015
Process matchbox-window (pid: 480, stack limit = 0xba3ca2f0)
Stack: (0xba3cbeb0 to 0xba3cc000)
bea0:                                     bbc9db28 a72a6250 a72a6264
801346bc
bec0: 00014000 00000000 a72a6250 800f8288 00000000 bfa9f728 80b46680
bffc3280
bee0: bbc9db28 00000000 0000000c ba3cbf1b 00000000 bfa9f728 80b46680
00014000
bf00: 00000000 00000000 00000014 80240730 00000000 80b466f4 53b466f8
30565359
bf20: 30303030 00303030 80b46708 80b466f4 00000000 ba3cbf94 80b46680
ba3cbf88
bf40: 00000000 8023cd90 2ab42000 00000003 7e829900 80b46680 7e829900
00000003
bf60: ba3ca000 2aca1794 000380a8 00000000 00000133 800439c4 ba3ca000
00000000
bf80: 00000000 80240b48 8024064c 802403d0 802403d8 00000000 000003ff
00014000
bfa0: 00027dac 80043840 2aca1794 000380a8 00000000 00014000 000003ff
00000014
bfc0: 2aca1794 000380a8 00000000 00000133 7e829950 00000000 008003f1
00000000
bfe0: 2aca183c 7e82992c 2ac95cf0 2ae8843c 60070010 00000000 1200004c
c0002008
[<8013237c>] (__d_instantiate+0x40/0xfc) from [<801346bc>]
(d_instantiate+0x3c/0x60)
[<801346bc>] (d_instantiate+0x3c/0x60) from [<800f8288>]
(shmem_file_setup+0xcc/0x1dc)
[<800f8288>] (shmem_file_setup+0xcc/0x1dc) from [<80240730>] (newseg
+0xe4/0x1a8)
[<80240730>] (newseg+0xe4/0x1a8) from [<8023cd90>] (ipcget+0x1b0/0x208)
[<8023cd90>] (ipcget+0x1b0/0x208) from [<80240b48>] (sys_shmget
+0x60/0x68)
[<80240b48>] (sys_shmget+0x60/0x68) from [<80043840>] (ret_fast_syscall
+0x0/0x30)
Code: 13833802 15843000 e1a03005 e5b31060 (e5812004) 
---[ end trace d9543cca4db5e711 ]---

Best regards,

Lee