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Re: Continued problems with 1394: msg#00015

Subject: Re: Continued problems with 1394
On 7/7/06, Stefan Richter <stefanr@xxxxxxxxxxxxxxxxx> wrote:
> Mark Knecht wrote:
> >    I've never seen these before. Today they are all over the place. I
> > post the entire list in case seeing the whole set together helps
> > someone draw conclusions.
> [...]
> > ieee1394: Node resumed: ID:BUS[0-00:1023]  GUID[00303c020010645c]
> > ieee1394: Reconnected to SBP-2 device
> [...]
>
> You have a few suspend - resume - reconnect messages in the first part
> of the log. Did you plug a FireWire device in or out during that time?
> Although these messages do not occur when the actual read command
> abortions follow, they may still be related unless they were merely
> caused by device hotplugs.

Most likely they were power down operations over night. I sometimes
unmount the drives and power them off. Since the drives very recently
seem to be having problems I've been turning them off when not in use.
Also my 1394b drive is a fanless case so it can get hot. More so now
that we're in the summer here. For those reasons I've been turning
them off recently when not using them, however all the shutdowns are
legal. Drives are properly unmounted first.

>
> Is it a stock kernel from kernel.org or a patched one? Of course if you
> test both original and patched kernels and the original one behaved
> better, that would _not_ rule out an sbp2 bug either.

It's Ingo Molnar's realtime patched kernel. I never run anything but
that sort of kernel. I upgraded from 2.6.16-rt25 to 2.6.17-rt1 and
then -rt5.

I cannot run the non-realtime kernels and do my work, unfortunately.

>
> (BTW, quotes from syslog are more informative than quotes from bare
> dmesg because syslogd adds time stamps. It is possible to activate time
> stamps in dmesg too by a kernel configuration option but syslog's time
> stamps are nicer to read. OTOH, if people take messages from syslog,
> they have to take care to select the proper log file which depends on
> their syslog.conf.)

OK, I'll root around in /var/log and see what I can find for you.

Thanks!

- Mark

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