On Wed, Nov 08, 2023 at 09:00:23PM -0300, Fabio Estevam wrote: > [Adding Tom and Marek] > > On Wed, Nov 8, 2023 at 7:22 PM Tim Harvey <thar...@gateworks.com> wrote: > > > > Greetings, > > > > I've recently given wget/tcp a try and find the results inconsistent. > > > > Transferring the same file 15 times in a row will eventually give me > > an incomplete transfer with packet/byte count wrong but showing > > 'Transfer Successful'. > > > > Here is current master on an imx8mp-venice-gw74xx board using IMX8MP > > EQOS enet dev: > > > > > u-boot=> time wget $loadaddr > > /tftpboot/venice/core-image-minimal.ext4.gz && md5sum $loadaddr > > $filesize > > HTTP/1.0 200 OK| | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | > > Packets received 64368, Transfer Successful > > Bytes transferred = 93198937 (58e1a59 hex) > > > > time: 3.103 seconds > > md5 for 48200000 ... 4dae1a58 ==> 69bedfe899148c43c09a98ac950dd0ed > > .... > > u-boot=> time wget $loadaddr > > /tftpboot/venice/core-image-minimal.ext4.gz && md5sum $loadaddr > > $filesize > > HTTP/1.0 200 OK| | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | > > | | | | | | > > Packets received 64368, Transfer Successful > > Bytes transferred = 26984682 (19bc0ea hex) > > > > time: 3.011 seconds > > md5 for 48200000 ... 49bbc0e9 ==> c9978ff116605a7729a1cb14ef51fc20 > > > > Anyone else seeing this? > > Yes, I am seeing the same behavior on an imx8mn board using the FEC driver. > > I am transferring a 412MB file. Doing the wget transfers several times > in a row, I also see the incorrect number of bytes transferred:
Interesting. What if you take wget out of the equation and use "tftp" to grab a large file with a known checksum, repeatedly (note that "rhash -C" will give a crc32 in Linux so you can confirm the correct value and loop a get, crc32, compare, repeat loop with a little work) ? I ask because I was reminded today that for me at least, the RPi ethernet isn't reliable in U-Boot for me if you stress it too hard. So I'd like to try see if this is "wget bug" or "network driver/related bug". -- Tom
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