Messages in this thread | | | Date | Sat, 5 Jun 1999 16:07:15 -0400 | From | synflood@endor ... | Subject | Re: 2.3.5_andrea2 IDE-CD Problem |
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On Sat, Jun 05, 1999 at 02:45:36PM +0200, Andrea Arcangeli wrote: > On Sat, 5 Jun 1999 synflood@endor.sick.cl wrote: > > >i was testing 2.3.5_andrea2 patch on 2 server and 1 workstation today, > > Do you use SMP? 2.3.5 is not SMP safe in the network code (warning, don't > use it for production!). No all the machines are single Celeron 300A Machine with 64Mb or 128Mb Ram and IDE Disk, my workstation is a Celeron 300A overclocked to 450Mhz with 128Mb ram and an ASUS P2B.
> > >both servers work great, handling load of closer to 30 or 33 w/o problem > >and almost with no swap on a 64Mb Ram Machine running cistron-radiusd and MySQL > >(the load was produced by a test script) > > Good. I suppose 2.3.5 couldn't sustain a load of 30/33 without major lose > of iterativeness. Also the global performances should be improved a lot.
well you were wrong :) but a second test today show that the machine freeze w/o a message with a load of 24, but the machine normal load is 1 o 0.5 , so is ok for me. and yeah swap usage is 0, and normally it is around 2 or 3 megs of swal allocated just on startup.... IDE disk almost report no heavy work. the machine is running MySQL and cistron-radiusd. in a 2.3.5 w/o patches there is a lot of HD work, with your patches the work on the IDE disk is almost none.
> >Jun 5 00:09:38 endor kernel: end_request: I/O error, dev 16:40 (hdd), sector > >108 > > I have no idea about this. I really think to have changed nothing that may > generate these errors. Is this reproducible? Are you sure this doesn't > happen in 2.3.5 clean right now too?
no 2.3.5 vanilla works great. i check your patch and there is no modification to the IDE Subsystem. also as i'm writing this mail i'm testing you patch again and the ide cdrom is working great :( seems to be a random problem. right now i'm burining the CDROM and the IDE CDROM is working w/o problems. is strange when i write the e-mail i reboot the machine twice and both time the problems appears.. and now it didn't show up...
> > My first guess is that you had a real problem reading I/O from the CD, and > then you triggered a buffer leakage (shown by my set_blocksize) in the > isofs code. > maybe, but right now i'm unable to reproduce the problem... well i'll keep trying to make the bug show again...
> Where is placed your CDWR? is a SCSI CDR Attached to a NCR53c850 PCI Controller.
Thanks for your time and help.
--
SynFl00d
email : synflood@endor.sick.cl Efax Number : (815) 366-3177 ICQ : 6994327
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