On Thu, Mar 14, 2013 at 6:58 PM, MingAnn Ng <[email protected]> wrote:
>
> Hi Thomas,
>
> Below are a few lines of dmesg out of many that I've manage to captured:
>
> ------------[ cut here ]------------
> Badness at c998821c [verbose debug info unavailable]
> NIP: c998821c LR: c9987ae8 CTR: c9987f8c
> REGS: c7ffbd50 TRAP: 0700 Tainted: G W (2.6.35)
> MSR: 00029032 <EE,ME,CE,IR,DR> CR: 22024082 XER: 00000000
> TASK = c03f3410[0] 'swapper' THREAD: c0414000
> GPR00: 00000000 c7ffbe00 c03f3410 00000000 c6afeb58 00008803 c6cfc040
> 00002e47
> GPR08: 00000002 00000000 c6808000 00000000 22022042 100b1254 c7ad0a80
> 00000000
> GPR16: 0000000a 00000000 00000001 4877cffb c7ffbea8 c7ad4000 c7ad401c
> c6838300
> GPR24: c7ad0a80 00000001 c6afeb58 c6afeb40 00000082 c7ffbe48 c6cfc040
> c6afeb40
> Call Trace:
> [c7ffbe00] [c9987e40] 0xc9987e40 (unreliable)
> [c7ffbe40] [c9988bf4] 0xc9988bf4
> [c7ffbea0] [c9aaf0f0] 0xc9aaf0f0
> [c7ffbf70] [c9aad3c4] 0xc9aad3c4
> [c7ffbf90] [c002b6d4] 0xc002b6d4
> [c7ffbfb0] [c002b7fc] 0xc002b7fc
> [c7ffbff0] [c0010a6c] 0xc0010a6c
> [c0415e70] [c0006214] 0xc0006214
> [c0415e90] [c002b54c] 0xc002b54c
> [c0415ea0] [c00062f4] 0xc00062f4
> [c0415ed0] [c001173c] 0xc001173c
> --- Exception: 501 at 0xc00091e4
> LR = 0xc00091e4
> [c0415f90] [c0009194] 0xc0009194 (unreliable)
> [c0415fb0] [c0003e28] 0xc0003e28
> [c0415fc0] [c03c3884] 0xc03c3884
> [c0415ff0] [00003438] 0x003438
> Instruction dump:
> 813e01c0 800900cc 70090100 40a2fddc 38600000 4bfffd78 54a0052a 2f800800
> 40bef998 8804001e 70090002 40a2f98c <0fe00000> 38800001 4bfffb24 801f0050
> ------------[ cut here ]------------
> Badness at c998821c [verbose debug info unavailable]
> NIP: c998821c LR: c9987ae8 CTR: c9987f8c
> REGS: c7ffbd50 TRAP: 0700 Tainted: G W (2.6.35)
> MSR: 00029032 <EE,ME,CE,IR,DR> CR: 22024082 XER: 00000000
> TASK = c03f3410[0] 'swapper' THREAD: c0414000
> GPR00: 00000000 c7ffbe00 c03f3410 00000000 c7b0f618 00008803 c6cbd040
> 00002e47
> GPR08: 00000002 00000000 c6808000 00000000 22022042 100b1254 c7ad0a80
> 00000000
> GPR16: 0000000a 00000000 00000001 489653c2 c7ffbea8 c7ad4000 c7ad401c
> c6838300
> GPR24: c7ad0a80 00000001 c7b0f618 c7b0f600 00000082 c7ffbe48 c6cbd040
> c7b0f600
> Call Trace:
> [c7ffbe00] [c6a9e300] 0xc6a9e300 (unreliable)
> [c7ffbe40] [c9988bf4] 0xc9988bf4
> [c7ffbea0] [c9aaf0f0] 0xc9aaf0f0
> [c7ffbf70] [c9aad3c4] 0xc9aad3c4
> [c7ffbf90] [c002b6d4] 0xc002b6d4
> [c7ffbfb0] [c002b7fc] 0xc002b7fc
> [c7ffbff0] [c0010a6c] 0xc0010a6c
> [c0415e70] [c0006214] 0xc0006214
> [c0415e90] [c002b54c] 0xc002b54c
> [c0415ea0] [c00062f4] 0xc00062f4
> [c0415ed0] [c001173c] 0xc001173c
> --- Exception: 501 at 0xc00091e4
> LR = 0xc00091e4
> [c0415f90] [c0009194] 0xc0009194 (unreliable)
> [c0415fb0] [c0003e28] 0xc0003e28
> [c0415fc0] [c03c3884] 0xc03c3884
> [c0415ff0] [00003438] 0x003438
> Instruction dump:
> 813e01c0 800900cc 70090100 40a2fddc 38600000 4bfffd78 54a0052a 2f800800
> 40bef998 8804001e 70090002 40a2f98c <0fe00000> 38800001 4bfffb24 801f0050
> ------------[ cut here ]------------
> Badness at c998821c [verbose debug info unavailable]
> NIP: c998821c LR: c9987ae8 CTR: c9987f8c
> REGS: c7ffbd50 TRAP: 0700 Tainted: G W (2.6.35)
> MSR: 00029032 <EE,ME,CE,IR,DR> CR: 22024082 XER: 00000000
> TASK = c03f3410[0] 'swapper' THREAD: c0414000
> GPR00: 00000000 c7ffbe00 c03f3410 00000000 c7b6d798 00008803 c6fd4040
> 00002e47
> GPR08: 00000002 00000000 c6808000 00000000 22022042 100b1254 c7ad0a80
> 00000000
> GPR16: 0000000a 00000000 00000001 48a3cc1d c7ffbea8 c7ad4000 c7ad401c
> c6838300
> GPR24: c7ad0a80 00000001 c7b6d798 c7b6d780 00000082 c7ffbe48 c6fd4040
> c7b6d780
> Call Trace:
> [c7ffbe00] [c9987e40] 0xc9987e40 (unreliable)
> [c7ffbe40] [c9988bf4] 0xc9988bf4
> [c7ffbea0] [c9aaf0f0] 0xc9aaf0f0
> [c7ffbf70] [c9aad3c4] 0xc9aad3c4
> [c7ffbf90] [c002b6d4] 0xc002b6d4
> [c7ffbfb0] [c002b7fc] 0xc002b7fc
> [c7ffbff0] [c0010a6c] 0xc0010a6c
> [c0415e70] [c0006214] 0xc0006214
> [c0415e90] [c002b54c] 0xc002b54c
> [c0415ea0] [c00062f4] 0xc00062f4
> [c0415ed0] [c001173c] 0xc001173c
> --- Exception: 501 at 0xc00091e4
> LR = 0xc00091e4
> [c0415f90] [c0009194] 0xc0009194 (unreliable)
> [c0415fb0] [c0003e28] 0xc0003e28
> [c0415fc0] [c03c3884] 0xc03c3884
> [c0415ff0] [00003438] 0x003438
> Instruction dump:
> 813e01c0 800900cc 70090100 40a2fddc 38600000 4bfffd78 54a0052a 2f800800
> 40bef998 8804001e 70090002 40a2f98c <0fe00000> 38800001 4bfffb24 801f00
>
>
> I have discovered some scenario that I could not understand. Below is my
> test topology:
>
> A
>
> / \
>
> B-----C
>
> A serial cable is connecting to node A and I have a terminal window which
> I've ssh into node B at the same PC. Then, I have started to ping on the SSH
> window to node A. In this case, the above debugging message did not shown
> often on serial of node A, only a few time in hundred of ping. I presume
> those debugging message is shown due to duplication.
>
> After that, I starting to ping to node C on the ssh windows. In this case,
> the serial of A shown the debugging message for each ping. But the ping is
> not dedicated to node A. Is this mean that, even the packet is not meant for
> node A (its a ping from B to C), node A still received the packet?
Thanks for testing. No this behavior is not expected.
Mesh needs drivers to honor certain (pass-through) filters:
FIF_OTHER_BSS, and FIF_ALLMULTI. Looking at how ath9k handles this I
found the tidbit:
if (sc->nvifs > 1 || (sc->rx.rxfilter & FIF_OTHER_BSS)) {
/* This is needed for older chips */
if (sc->sc_ah->hw_version.macVersion <= AR_SREV_VERSION_9160)
rfilt |= ATH9K_RX_FILTER_PROM;
Which apparently puts the card into promiscuous mode as a hack. Did
you happen to test with the ar9220 card as well?
--
Thomas
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