what 's Kernel stack overflow?

[Wolfgang Grandegger]

Hello,

we have the "full" QT Embedded Demo ($QTDIR/examples/launcher) running
on the TQM823L modules. So far it's working fine. It's based on the release
qt-embedded-free-3.0.1. In case you are interested, I could send you my
patch plus some build instructions.

Wolfgang.

On 08/08/2002 03:20 PM, ssx761221 wrote:

>on our custom MPC823e board, running kernel is linux-2.4.4-2002-03-21.tar.bz2,
>which is downloaded at denx's ftp.  we have ported qt-embedded-free-3.0.5.
>"hello" demo works well at first, but  it died after running about one hour.
>Not only that demo but also the whole system .
>  messages like this:
>
>Oops: kernel access of bad area, sig: 11
>NIP: C0032C00 XER: 80002149 LR: C0031C78 SP: C1AD8720 REGS: c1ad8670 TRAP: 0300 MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
>DAR: 00000026, DSISR: 0000000B
>TASK = c1ad8000[94] 'hello' Last syscall: 4
>last math 00000000 last altivec 00000000
>GPR00: C00025DC C1AD8720 C1AD8000 00000001 30018000 00000016 0000000A 0F727AA8
>GPR08: 1000669D 00000001 C0031C5C 0000001E 35033153 1001ED80 00000000 100C8450
>GPR16: 100B0010 00000000 00000000 00000000 00009032 01AD8740 00000000 C0002860
>GPR24: C0002580 00000001 1000669D 00000016 30018000 00000016 0F734920 00000016
>Call backtrace:
>00000000 C00025DC 00000148 0F847D60 0F67A4E4 0F67A3F0 0F67A7E0
>0F847C58 0F67B13C 0F847DC0 0F656364 0F65F6E0 100049B8 10005ECC
>0FBE7E9C 0FBE7DAC 0FAF1A2C 0FC05064 0FBA4250 0FBA4048 0FB209D4
>0FB1EE1C 0FBA5A5C 0FB1EA34 10003C84 0F626DBC 00000000
>Kernel stack overflow in process c1ad8000, r1=c1ad8450
>NIP: C0004744 XER: 80002149 LR: C0018320 SP: C1AD8450 REGS: c1ad83a0 TRAP: 0500 MSR: 00009032 EE: 1 PR: 0 FP: 0 ME: 1 IR/DR: 11
>TASK = c1ad8000[94] 'hello' Last syscall: 4
>last math 00000000 last altivec 00000000
>GPR00: C001831C C1AD8450 C1AD8000 00009032 0000000F 00000001 C0170000 C0170000
>GPR08: 00000000 00000000 C0170000 00000000 FFFFFFFF 1001ED80 00000000 100C8450
>GPR16: 100B0010 00000000 00000000 00000000 00001032 01AD84C0 00000000 C0002858
>GPR24: C00038FC 00000000 00030001 0000000B C0160000 00000000 C0170000 0000005B
>Call backtrace:
>C001831C C0014270 C0014120 C0013F38 C0002888 C0002A08 C000A398
>C000A260 C0002860 00000000 C00025DC 00000148 0F847D60 0F67A4E4
>0F67A3F0 0F67A7E0 0F847C58 0F67B13C 0F847DC0 0F656364 0F65F6E0
>100049B8 10005ECC 0FBE7E9C 0FBE7DAC 0FAF1A2C 0FC05064 0FBA4250
>0FBA4048 0FB209D4 0FB1EE1C 0FBA5A5C 0FB1EA34
>Kernel panic: kernel stack overflow
>In interrupt handler - not syncing
>Rebooting in 180 seconds..
>
> what's the meaning of "kernel stack overflow"
> memory leak?
>
>thanks adance!
>
>
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