Further fun...
Now after bouncing the swap and clearing out memory I decided to run the
test.pl script again to suck up some more memory...
Box dies, pretty much for 15 seconds, when it comes back load is at 8.0
kernel syslog messages..::
---- Apr 11 16:37:13 mkdexii kernel: sym53c896-1-<3,0>: ordered tag forced. Apr 11 16:37:43 mkdexii last message repeated 2 times ----- with 181M of Swap in use and 252 mb of Physical RAM.... this is getting really tricky...Now to bounce the swap again.... well well IO lock up again, hmmm. sym53c896 driver--- load went up to 12 and now I'm left with 135mb of used physical ram...
What can I draw from this?? Well memory that is being swapped shouldn't be, once it is swapped out it doesn't seem to be reaped(my understanding is lacking :-(( ). In my case 250mb of memory was swapped out during my memory eater test. The process then died and 750mb of physical ram got freed up but still 250mb of swap was in use, I then switched off swap and turned it back on and it was gone. WHy was it there in the first place as I had 750mb of free physical memory.
Secondly is there a problem with the Sym53c896 driver settings, I upped the default queu length to 8 and the Synch Freq to 40mhz????, WHy is the machine locking so badly under high IO... ???
TIA MARCin
-- ----------------------------- Marcin Kowalski Linux/Perl Developer Datrix Solutions Cel. 082-400-7603 ***Open Source Kicks Ass*** ----------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
This archive was generated by hypermail 2b29 : Sun Apr 15 2001 - 21:00:16 EST