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markus reichelt wrote: | Venkat Manakkal <venkat@xxxxxxxxxxxxxx> wrote: | |>After much googling I discovered that people wiere having issues on |>the 2.6 kernels with these two adapters... moved to 2.4.28 and |>everthing is running nicely. | | | Interesting. Any chance of pinpointing the issue with 2.6 kernels, | like preemptible kernel feature? |
I tried with and without pre-empt and then with and without high-mem i/o for drivers. No difference, random time to i/o error scsi crashes, made worse by heavy scsi i/o. Thankfully going to 2.4.28 fixed it.
It was quite weird, running ssh sessions would continue to display a prompt, running any command would complain that command could be found as the root fs dissapeared. Even the running Arkeia GUI (remotely viewed via ssh) would remain complaining that it could not access the tape drive. I forget exactly what the message was, but since the root fs was inaccessible no logs are available, and since it was a panic everytime (as in get the server back online quick), I did not take debug notes. My recollection is that on doing any command it was "i/o error command not found". Even dmesg and reboot did not work, not did any of the hotkeys like ctrl-alt-del.
Sorry I'm not more helpful, but it is a production machine with 0.5TB of data and I cannot try the experiment on it.
Best regards,
- ---Venkat.
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