[etherlab-dev] Kernel paging request handling issue when ethercat is enabled

[Lingjie_Kong at amat.com]

Hi,

I have a quick problem on get the following error message when getting ethercat enabled to run for a while. Therefore, I am just wondering that whether anyone has seen such error before as well as how to resolve this problem.

Oops: Exception in kernel mode, sig: 4 [#1]
Unable to handle kernel paging request for instruction fetch
Faulting instruction address: 0xa7994350
Oops: Kernel access of bad area, sig: 11 [#2]
SMP NR_CPUS=2 APM862xx vB
Modules linked in: ec_r8169(O) ec_master(O) usralgo(O) rtpmac(O) libppmac(O) ppmachw(O) [last unloaded: r8169]
NIP: a7994350 LR: a7994350 CTR: 802f27a4
REGS: 806ce2f0 TRAP: 0400   Tainted: G        W  O  (3.2.21-powerpmac-smp)
MSR: 00029000 <EE,ME,CE>  CR: 28fd2f82  XER: 20000000
TASK = 9e076d00[0] 'swapper/1' THREAD: 9e0ac000 CPU: 1
GPR00: a7994350 806ce3a0 9e076d00 806d47f4 a9bc27d0 ffffffff 802f30f4 806bc538
GPR08: 00000001 00025061 00000001 00029000 28fd2f22 efb517dd f62a70ff eeefb6cf
GPR16: fff647f8 00000000 805a322c 10624dd3 3b9aca00 00044b83 00000001 00000001
GPR24: 00000000 806ce3b8 806d47d0 0000002f 8066c1f4 806d4824 a7604070 fffff900
NIP [a7994350] 0xa7994350
LR [a7994350] 0xa7994350
Call Trace:
Instruction dump:
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
Kernel panic - not syncing: Attempted to kill the idle task!
Call Trace:

Best regards,

-Lingjie Kong

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