[grsec] problems with latest 38.3 patch

[Carlos Carvalho]

With 2.2.2-2.6.38.3-201104201821.patch and Debian I'm getting nasty
errors from web browsers.

First, with FF 3.5 in Debian, it gets stuck in an infinite loop at
startup consuming 100% cpu. strace of some seconds produced 600,000+
lines of which almost all are:

 150049 mmap2(0xad000000, 1048576, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xad057000
 150049 mmap2(NULL, 2097152, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) = 0xacf57000
 150049 munmap(0xacf57000, 2097152)             = 0
 150051 munmap(0xad057000, 1048576)             = 0

Next I tried vanilla FF 3.5 and 3.6. Both give

./firefox-bin: error while loading shared libraries: ./libxul.so: cannot make segment writable for relocation: Permission denied

Then I tried Debian chromium, which produces

/usr/lib/chromium-browser/chromium-browser: error while loading shared libraries: libGL.so.1: failed to map segment from shared object: Operation not permitted

Without grsec 38.3 works as usual. This is without KERN_LOCKOUT.

Is it possible to get the browsers running with the new grsec?