Crashes on longer file uploads

I get an "abnormal program termination" error when uploading longer files (or sometimes even smaller ones) to my server. I tried searching the support archives but didn't come up with anything helpful. Below is the relevant section of the logs.
Thanks,
~Evan

. Copying 1 files/directories to remote directory "/home/evan/webfiles/Evan/Vassar/"
. PrTime: Yes; PrRO: Yes; Rght: rw-r--r--; PrR: No; FnCs: N; RIC: Yes; Resume: S (102400); CalcS: Yes
. TM: M; AscM: *.*htm*; *.txt; *.php*; *.cgi; *.c; *.cpp; *.h; *.pas; *.bas; *.tex; *.pl; .htaccess; *.xtml; *.css; *.cfg; *.ini; *.sh; *.xml
> echo "WinSCP: this is begin-of-file" ; scp -r -d -t "/home/evan/webfiles/Evan/Vassar" ; echo "WinSCP: this is end-of-file:$?"
< WinSCP: this is begin-of-file
. SCP remote side confirmation (0)
. File: "C:\Documents and Settings\steve\Desktop\evan\civlzn-final-paper-decol-intl-rel.wpd"
. Copying "C:\Documents and Settings\steve\Desktop\evan\civlzn-final-paper-decol-intl-rel.wpd" to remote directory started.
. Binary transfer mode selected.
> T1073265188 0 1073268894 0
. SCP remote side confirmation (0)
> C0644 2487786 civlzn-final-paper-decol-intl-rel.wpd
. SCP remote side confirmation (0)
. Sending BINARY data (first block)
. Network error: Software caused connection abort

Your server closed the connection. However reaction of WinSCP to the event (abnormal program termination) is evidently inappropriate.

martin wrote:

Your server closed the connection. However reaction of WinSCP to the event (abnormal program termination) is evidently inappropriate.

Why did the server close the connection? I have full access to it and can change all its settings. I'm running Fedora Core 1 if that helps.
~Evan

Anonymous wrote:

Why did the server close the connection?

I do not know. Maybe you'll find some useful information in your server's log.

martin wrote:

Anonymous wrote:

Why did the server close the connection?

I do not know. Maybe you'll find some useful information in your server's log.

Here's the section from the log. It doesn't matter whether i log in as root or as a user. I couldn't find much helpful information on the error message about the "corrupted MAC". any ideas?

Jan 6 18:59:07 amelie sshd[20069]: Accepted password for evan from 192.168.1.1 port 3988 ssh2
Jan 6 18:59:39 amelie sshd[20071]: Disconnecting: Corrupted MAC on input.
Jan 6 19:00:46 amelie webmin[20121]: Successful login as root from 192.168.1.1
Jan 6 19:29:14 amelie sshd[20169]: Accepted password for root from 192.168.1.1 port 4083 ssh2
Jan 6 19:29:36 amelie sshd[20169]: Disconnecting: Corrupted MAC on input.

What is your SSH server? You may try to turn on option "Miscomputes SSH2 HMAC keys" on Bugs tab of Login dialog in section "Detection of known bugs in SSH servers".

martin wrote:

What is your SSH server? You may try to turn on option "Miscomputes SSH2 HMAC keys" on Bugs tab of Login dialog in section "Detection of known bugs in SSH servers".

I'm running whatever comes with fedora core 1, openssh-3.6.1p2-19 as far as i can tell. When I try the option you specified, I can't login and get this message:
"Incorrect MAC received on packet"

Sorry, but I have no other hint for you :-( These kind of problems may also be caused by network problems. But it is hard to tell if it is your case.

martin wrote:

Sorry, but I have no other hint for you :-( These kind of problems may also be caused by network problems. But it is hard to tell if it is your case.

Just FYI: I recently upgraded to Winscp 3.42 and immediately found the same behaviour: Crashes when uploading bigger files with "scp" ("norton style").
This happens with:
- Red Hat 9.0
- SuSE 9
Message: EAccessViolation

- this does also happen with Winscp 3.5 - it only does not exit the app
- this did not happen with my old version (2)
- this does not happen using command line "scp" from another client
- this can be avoided with Winscp when i decrease the transfer bandwidth down to <200kb/s

Great tool, though! ;-)

Jan

jleg wrote:

Just FYI: I recently upgraded to Winscp 3.42 and immediately found the same behaviour: Crashes when uploading bigger files with "scp" ("norton style").
This happens with:
- Red Hat 9.0
- SuSE 9
Message: EAccessViolation

I'm just uploading debug version of WinSCP 3.5. Please try to reproduce the bug with it. Send me an error message and the file WinSCP3.cgl, which it generates to my email address.

Please note that I have just changed the download URL in previous post.