Memory stick writing problems (V190 updated)

[Barry Landy]

As previously in ticket 48

Writing (this time from desktop) to a memory stick formatted either JFS or HPFS causes problems.

JFS: spontaneous reboot HPFS: write process freezes.

This is with the blandy.3 version.

What can I do to get data? (or would you rather leave this for the time being?)

[Lars Erdmann]

It's most likely not a USBD.SYS problem.

Instead try the latest anchieri.x.zip from ticket #54. It contains an updated USBEHCD.SYS.

[Barry Landy]

Tried with anchien.4

I only had time for one trial writing to HPFS, which worked. More later.

[Barry Landy]

Seems to work very well. trying now with my laptop which was always troublesome in this area in the past. One try with HPFS and 2 with JFS succeeded as does CHKDSK on a mounted JFS volume.

[Lars Erdmann]

Look into ticket #54 regularly. Try the latest revision.

[Barry Landy]

Anchieri.6 is a step backwards. 4 remains fine.

On the laptop: Using 6 and writing a JFS USB partition, the series of writes halted (? when the first buffer load should have been written back). After waiting a long time while I could do other things but nothing happened with the JFS writes, I pulled the memsstick to see if it would free. That triggered a system trap; I couldnt see the number as it immediately went into the dump sequence. having noted your comments about time I did not take the dump.

I restored anchieri.4 and did a chkdsk to clean up the partition and then retried the write sequence and all was well.

[Lars Erdmann]

try anchieri.9.zip.

By the way: I also experienced a trap. anchieri.9.zip should no longer trap.
Just a thought: specify /S:8 on the USBEHCD.SYS config.sys line. See if that improves the situation.

[Barry Landy]

Anchieri.9 seems fine (one trial). Without the /S:8

[Barry Landy]

See comment added to #49. Anchieri.9 is repeatedly good for writing JFS but not for USB mouse & Keyboard

[Lars Erdmann]

Get 10.191 from Hobbes. Experiment with the /S: switch.

[Barry Landy]

10.191 works fine with no switches. (JFS write completes with no crashes or hangs). I have not tried experimetns with the .S switch (yet) - needs time because of all the reboots.

Throughput at the default of /S:8 seems totally acceptable.

In earlier versions was the default different? (I see /S:1 documented for 10.188 but I dont see a default specified for eg 10.190).

[Barry Landy]

Also works on laptop (T61) in both versions. Only defect is that when plugging in the memory stick (2 partitions) neither is seen by the system until I click "refresh removable partitions"

I am happy to close this issue on this basis (can always make a new ticket if I need to)

[Lars Erdmann]

David is working on an update. That will hopefully fix the problem that the 2 partitions are only seen after a removable media refresh. For your info: I currently also have the problem that I occasionally need to remove and plug back in a memory stick if it was already attached on bootup.