Bug in 2.0.x - Unable to allocate DMA memory

Hans-Joachim Baader (hans@grumbeer.inka.de)
Tue, 11 Feb 1997 22:42:02 +0100 (GMT-1)

I'm not sure if it's in all 2.0 versions but I definitely think it's
a bug. IMHO Linux should be able to preempt some memory pages from
other processes to fulfil the request for DMA memory. What do you think?

# mcopy rtc.c a:
floppy0: Unable to allocate DMA memory
Can't open /dev/fd0: No such device or address
Cannot initialize 'A:'
Bad target
# free
total used free shared buffers cached
Mem: 63132 59804 3328 9500 5856 27856
-/+ buffers: 26092 37040
Swap: 48640 8888 39752


    Uncle Ed's Rule of Thumb:  Never use your thumb for a rule.
    You'll either hit it with a hammer or get a splinter in it.