Comment 91 for bug 330824

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David Bowles (ubuntu-david) wrote :

@Theodore

I can reproduce the bug on a 1.6Ghz Via with 2GB of memory. The partition is on a 4 drive SATA II 7200rpm RAID 5 array. This box is running at a console level only. I do not have Gnome or any other applications, even Apache or MySQL installed. When the problem occurs for me, I have no other applications running.

I can cause this bug with only the barest of processes running, processor load at 0.00 and 1.9GB of free memory before I begin deleting. I say this to highlight that I do not believe resources, especially memory, are the issue.

That said, I now need to contradict myself somewhat.
Due to a different bug, I have had to disable my VIA padlock hardware assisted cryptography chip. (i.e. I have blacklisted the padlock_aes and padlock_sha modules)
Because of this, all operations on my ext4 data partition (which is encrypted) use the processor directly. Therefore during any large operation (e.g. possibly during a large delete such as one that causes the problem for me) I would imagine that the processor hits 100% usage very quickly. Unfortunately I cannot confirm this as the lockup happens too quickly. Therefore, despite the very low usage on my box it is still perhaps a processor constraint issue.

Thanks,
David