On Thu, 27 Nov 2003, Greg 'groggy' Lehey wrote: > On Wednesday, 26 November 2003 at 12:04:52 -0600, Cosmin Stroe wrote: > > > > I am using vinum atm, and I am having serious problems with it. After > > about 16 hrs of writing data to a vinum volume via NFS at a constant data > > stream of 200k/sec and reading at 400k/sec at the same time, the whole > > machine just freezes, hard. The only thing I can do is reboot. This > > behavior appears in 4.8 and 5-CURRENT. I have no indication of what is > > wrong, or how to go about finding it out. The problem is either with NFS > > or Vinum, and I'm leaning towards Vinum (because of the failure in both > > -STABLE and -CURRENT). > > > > I'm not the kind of person that relies on other people, and I like to fix > > my own problems, but this is a problem which I cannot fix at this time. > > So, I'm planning to look through the code of vinum and start messing with > > it to figure out how it works and how to debug it. > > This is unlikely to get you very far. Some more details (offline if > you prefer) would be handy, but as you say, you can't even be sure > that it's Vinum. The best thing would be to get the system into the > kernel debugger at the point of freeze, if that's possible, and try to > work out what has happened. >
Quick question: If this is a software problem with vinum, there should be no way it can hard lock a machine. Is this assumption correct ? I should be able to invoke the kernel debugger by pressing the hotkey (ctrl+alt+esc) while the machine is locked and get a backtrace (altho i'd be in an ISR servicing the hotkey, so i'm not sure it'd do much good). Any special suggestions on debugging this kind of freezing problem ? The hardware has been tested and it's good (CPU,RAM,HDs). (some kind of watchdog in software ??) > > What would also be appreciated is an overall "map" of how vinum is > > organized and how it works. > > You've read the documentation on http://www.vinumvm.org/, right? If > you have any questions, I'm sure it can be improved on. > Yes :). > Greg > -- > See complete headers for address and phone numbers. > Cosmin Stroe. _______________________________________________ [EMAIL PROTECTED] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "[EMAIL PROTECTED]"