MOLNAR> is there anyone who has seen small or big VM problems
MOLNAR> (writable swappage or crash or lockup) who is using GCC
MOLNAR> 2.7.2.3?
I'm using 2.7.2.3 on a 64M box that often has X, Netscape and Emacs up
for weeks on end. (2.1.103 for 31 days before I finally upgraded to
2.1.108-pre1....)
I've a swap partition on the mail drive (UDMA), a swap partition on
what is supposed to be my UDB's main drive (an ancient Quantum
PD1800S) and have used as many as four swap files on a 'cuda, sharing
the Buslogic 946 w/ the Quantum. Both the partions and the files are
all ~128M. And I have filled all 6 up. (Gimp helps there. :)
The box slows dramaticly after a few days of uptime (changing desktops
takes 3 to 10 seconds to swapin the now visible windows and swapout
the rest [1]), but the only real bug is the occasionaly inability to
fork even though lots of swap remains. Oh, and swapoff occasionally
had problems (I beleive Rik and Andrea have posted a couple of patches
addressing this).
But there were no writable swappage, crashes or lockups. Even when I
FUBARed those swapfiles (mkswap foo 128 rather than mkswap foo $[128 *
1024]; massive brain fart) and then swapoff(8)ed the original swap
partition, the box stayed up. X crashed (presumably w/ ENOMEM), but
not the kernel.
Most of that was w/ 2.1.103; I've only gotten 2.1.108 (incl -pre1, and
ac2) as far as ~120M swap usage.
[1] The disk activity sounds like it is interleaving one-page
page-outs and page-ins, bouncing the disk heads back and
forth like an overloaded news spool....
-JimC
--
James H. Cloos, Jr.
<cloos@jhcloos.com>
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