OK,
I will try tomorrow with the latest changes from svn.
the test program is also attached....
thx, for the quick responses..
Bas
On Wed, Nov 26, 2008 at 10:21 AM, Michal Simek <monstr@xxxxxxxxx> wrote:
> Hi All,
>
> this changes is in latest entry.S too.
>
> Thanks,
> Michal
>
>
>> Hi,
>> We used to have the same problem, although we don't use xemac. Without
>> going into possibly misleading details, we noticed a one-line difference
>> between our entry.S and the one in the Petalogix tree. After making the
>> change we've been able to run a simple script that continuously sends
>> packets to the board for several days without crashing. Running the same
>> script before the change, the system would freeze in seconds. I hope
>> this helps, here's an attachment just in case.
>>
>> Location -
>> petalinux/software/linux-2.6.x-petalogix/arch/microblaze/kernel/entry.S
>>
>>
>> -----Original Message-----
>> From: Bas van Tiel <bvantiel@xxxxxxxxx>
>> To: microblaze-uclinux@xxxxxxxxxxxxxx
>> Sent: Tue, 25 Nov 2008 15:10
>> Subject: [microblaze-uclinux] UDP packet reception triggers a hangup on
>> the microblaze
>>
>> Hello All,
>>
>>
>>
>> when I transmit a continously stream of UDP packets to the microblaze
>>
>> a hangup is triggered, I have the following configuration:
>>
>>
>>
>> - petalinux-v0.30-rc1 software
>>
>> - xemac linux driver in PIO mode
>>
>> - xemac IP block which is connected via a PLB <-> OPB bridge to the
>>
>> ublaze. (the xemac is configured with "No DMA" and IPIF
>>
>> (recieve/transmit buffers) are set to 32768 bytes and FIFO depth of
>>
>> 16.)
>>
>> - EDK 9.2.02. with the patch (AR30051) from Xilinx for the microblaze v7.00.b.
>>
>> - 2 uarts, one for kernel console, other one for shell access.
>>
>> - ML506 Evalutation platform
>>
>>
>>
>> I tried to capture the packets via AF_PACKET and AF_INET, both methods
>>
>> gave the same result -> a kind of hangup of the microblaze:
>>
>>
>>
>> symptoms:
>>
>> 1) no serial input is taken from both terminals
>>
>> 2) a ping to the microblaze doesn't send a reply packet back.
>>
>>
>>
>> Has anybody seen this behavior before with the xemac connected via the
>>
>> OPB (PLB<->OPB) to the PLB bus, or is this setup with a bridge in
>>
>> between
>>
>> asking for trouble and should I look for an alternative?
>>
>>
>>
>>
>>
>> Best regards,
>>
>> Bas
>>
>>
>>
>> --- some additional info
>>
>>
>>
>>
>>
>> Linux tmb 2.6.20-uc0 #1 Tue Nov 25 14:27:21 CET 2008 microblaze
>>
>>
>>
>> CPU-Family: MicroBlaze
>>
>> FPGA-Arch: virtex5
>>
>> CPU-Ver: Unknown
>>
>> CPU-MHz: 125.00
>>
>> BogoMips: 62.05
>>
>> HW-Div: yes
>>
>> HW-Shift: yes
>>
>> Icache: 8kB
>>
>> Dcache: 8kB
>>
>> HW-Debug: yes
>>
>>
>>
>> PID PORT STAT SIZE SHARED %CPU COMMAND
>>
>> 1 S 135K 0K 0.0 /bin/init
>>
>> 2 R 0K 0K 0.0 ksoftirqd/0
>>
>> 3 S 0K 0K 0.0 events/0
>>
>> 4 S 0K 0K 0.0 khelper
>>
>> 5 S 0K 0K 0.0 kthread
>>
>> 6 S 0K 0K 0.0 kblockd/0
>>
>> 7 S 0K 0K 0.0 pdflush
>>
>> 8 S 0K 0K 0.0 pdflush
>>
>> 9 S 0K 0K 0.0 kswapd0
>>
>> 10 S 0K 0K 0.0 aio/0
>>
>> 11 S 0K 0K 0.0 mtdblockd
>>
>> 24 S 0K 0K 0.0 jffs2_gcd_mtd4
>>
>> 40 S0 S 656K 0K 0.0 /bin/sh
>>
>> 41 S0 S 643K 0K 0.0 /bin/sh --
>>
>> 42 S 67K 0K 0.0 /bin/inetd
>>
>> 55 S0 R 68K 0K 0.0 ps
>>
>>
>>
>> pseudo code:
>>
>>
>>
>> ethernet mac is running at 100 BaseTX-FD
>>
>>
>>
>> sender: (host PC)
>>
>> sd_ = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
>>
>> sendto(sd_, buf, BUFLEN, 0, (struct sockaddr*)&sa_, (socklen_t)sizeof(sa_));
>>
>>
>>
>> receiver (Microblaze)
>>
>> sd_ = socket(AF_INET, SOCK_DGRAM, IPPROTO_UDP);
>>
>> bind(sd_, (struct sockaddr*)&sa, sizeof(sa))
>>
>> if (!select(sd_+1, &rfds, 0, 0, &timeout)) { break; }
>>
>> size = recv(sd_, buf, BUFLEN, 0);
>>
>> ___________________________
>>
>> microblaze-uclinux mailing list
>>
>> microblaze-uclinux@xxxxxxxxxxxxxx <mailto:microblaze-uclinux@xxxxxxxxxxxxxx>
>>
>> Project Home Page : http://www.itee.uq.edu.au/~jwilliams/mblaze-uclinux <http://www.itee.uq.edu.au/%7Ejwilliams/mblaze-uclinux>
>>
>> Mailing List Archive : http://www.itee.uq.edu.au/~listarch/microblaze-uclinux/ <http://www.itee.uq.edu.au/%7Elistarch/microblaze-uclinux/>
>>
>>
>>
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>
Attachment:
test.tgz
Description: GNU Zip compressed data