On Saturday 05 October 2002 18:23, Ray Olszewski wrote: > OK. You want an opinion. It's only a guess, but I'd suspect a problem with > > your swap partition, since the failure described is a paging problem: > > > Oct 5 04:45:04 k kernel: Unable to handle kernel paging > > request at > > > > virtual address 361dcf1b > > Also, ftp transfers tend to fill up memory. With 256 MB of real RAM, and > the process list you sent, an ftp transfer mat be the only thing that ever > triggers use of swap space. > > To explore this guess, try the following (assuming this is a problem that > recurs): > > 1. Run "top" in some way that will let you see its last output > before a failure (maybe over a telnet or ssh connection). Then notice if > this problem occurs when you are just starting to use swap. > > 2. Disable your swap partition and see if the problem stops > happening. > > 3. If you do NOT have DMA enabled for your hard drive, try > enabling it (with hdparm) and see if that helps. The problem may just be > timing.
root@k:~# hdparm /dev/hda /dev/hda: multcount = 0 (off) IO_support = 0 (default 16-bit) unmaskirq = 0 (off) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 8 (on) geometry = 2482/255/63, sectors = 39876480, start = 0 I'll try another ftp transfer - see if things happen the same thanks, petre > All this said, my guess is only that -- a guess. As I noted in another > recent thread, a large ftp transfer is a good stress test for all parts of > the system, so it will unearth any hardware problems you might have (in my > case, most recently it unearthed a marginal power supply, as an example -- > different failure mode, though). > > At 04:28 PM 10/5/02 +0300, Petre Bandac wrote: > >petre@k:~$ uname -a > >Linux k 2.4.18-HTB #4 Wed Sep 25 02:47:50 EEST 2002 i686 unknown > > > >it is a Slackware 8.1 installed a few weeks ago > > > >I have 256 MB RAM and 200 MB swap space > > > >I stay away for the experimental kernels, as what I want from my system is > >stability. > > > >the uptime of the machine was at that time 4 days, 21:14:36. It is my home > >box, I run x-window on it (KDE), but at that time x-window wasn't running, > > so the only processes runing were those required by the system, plus > > apache plus http (below I'll list them). The only reason which comes to > > my mind is that at the time the crash occured I was doing a ftp upload on > > the machine @ ~200 KB (yes, kilo Bytes). If it makes any difference, I'm > > connected through a LanCity cable modem. > > > >I shall look at the file you mentioned, richard, thank you, though I would > >like to have some opinions on what caused this error (one of the few > > "fatal" errors I have seen on linux machines yet). > > [details deleted] -- 18:59:19 up 10:52, 2 users, load average: 0.08, 0.06, 0.01 - To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs
