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Kernel exception while tftp the file to RAM

Question asked by Chandra Shekhar on Jul 29, 2014
Latest reply on Aug 5, 2014 by lunminliang

Hi team,

We are seeing kernel exceptions on t1042 based board while trasferring file through tftp in RAM area. These exceptions are not which always comes. It comes once in a while, below is the log message,

 

root@t1040rdb:/media/ram# busybox tftp -b 64000 -g -r /auto/tftp-blr-users3/chanmish/arad_test/bcm.user 202.153.144.25
/auto/tftp-blr-users  14% |*************************************************************************************************************************Unable to handle kernel paging request for instruction fetch
Faulting instruction address: 0x1b201000
Oops: Kernel access of bad area, sig: 11 [#1]
SMP NR_CPUS=8 T104x RDB
Modules linked in: qoriq_dbg(O)
NIP: 1b201000 LR: c0506118 CTR: 1b201000
REGS: ee5edea0 TRAP: 0400   Tainted: G           O  (3.8.13-rt9-QorIQ-SDK-T1040-BSP0.2)
MSR: 00021002 <CE,ME>  CR: 22044028  XER: 00000000
TASK = c0848300[0] 'swapper/0' THREAD: c0884000 CPU: 0
GPR00: c008daec ee5edf50 c0848300 c190e740 e86253d0 f11e9240 00000240 00000000
GPR08: 00000000 1b201000 00000000 00000002 ffffffff 8db520f4 ffffffff 7ffb0a2c
GPR16: c0000a00 00000014 c07686fc 00000001 c0768738 c0880000 ffffff80 40000000
GPR24: 00000000 000fffff 00020000 00000001 ee5ec000 e83cbc00 f11e9240 c190e740
NIP [1b201000] 0x1b201000
LR [c0506118] portal_isr+0x1c8/0x240
Call Trace:
[ee5edf50] [c05060dc] portal_isr+0x18c/0x240 (unreliable)
[ee5edf80] [c008daec] handle_irq_event_percpu+0xbc/0x220
[ee5edfc0] [c008dc94] handle_irq_event+0x44/0x80
[ee5edfe0] [c00916d0] handle_fasteoi_irq+0xd0/0x180
[ee5edff0] [c000d9c8] call_handle_irq+0x18/0x28
[c0885ea0] [c000437c] do_IRQ+0x11c/0x190
[c0885ed0] [c000fbb8] ret_from_except+0x0/0x18
--- Exception: 501 at cpu_idle+0xb8/0x180
    LR = cpu_idle+0xb8/0x180
[c0885f90] [c0007a08] cpu_idle+0x58/0x180 (unreliable)
[c0885fc0] [c08027a8] start_kernel+0x2d0/0x2e4
[c0885ff0] [c00003e8] skpinv+0x2d4/0x310
Instruction dump:
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX
---[ end trace 104530bb0a694050 ]---

Kernel panic - not syncing: Fatal exception in interrupt
Rebooting in 180 seconds..

 

Regards,

-Chandra

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