mirror_zfs/module
Alex Zhuravlev 1b4ad25e2f Stack overflow on 64-bit modulus operations on 32-bit architectures.
Running 'zpool create' on a 32-bit machine with an SPL compiled with
gcc 4.4.4 led to a stack overlow.  This turned out to be due to some
sort of 'optimization' by gcc:

uint64_t __umoddi3(uint64_t dividend, uint64_t divisor)
{
   return dividend - divisor * (dividend / divisor);
}

This code was supposed to be using __udivdi3 to implement /, but gcc
instead implemented it via __umoddi3 itself.

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
2010-06-03 09:06:55 -07:00
..
spl Stack overflow on 64-bit modulus operations on 32-bit architectures. 2010-06-03 09:06:55 -07:00
splat Simplify rwlock implementation. 2010-05-20 14:20:34 -07:00
.gitignore sun-misc-gitignore 2010-01-08 09:37:54 -08:00
Makefile.in Remove Module.markers and Module.symver{s} in clean target 2010-03-08 13:39:57 -08:00