[grsec] random x freeze

fellow fellow at linuxforum.hu
Sat Mar 12 13:26:35 EST 2005


> what PaX flags are enabled on your X server? also, what's towards the

# chpax -v /usr/X11R6/bin/XFree86 

----[ chpax 0.7 : Current flags for /usr/X11R6/bin/XFree86 (pemRxs) ]---- 

 * Paging based PAGE_EXEC       : disabled 
 * Trampolines                  : not emulated 
 * mprotect()                   : not restricted 
 * mmap() base                  : randomized 
 * ET_EXEC base                 : not randomized 
 * Segmentation based PAGE_EXEC : disabled 

> end of the X logs (like was X loading some module around the time the
> problem occured, etc)? also, could you run X under strace and send me
> the log (if possible, both a working and non-working boot so that i
> can compare)? also try to turn off randomization for the tests, it
> makes it easier to interpret the numbers.
> 

witout pax, clean run:
http://fellow.linuxforum.hu/egyeb/strace-nemfagyi
http://fellow.linuxforum.hu/egyeb/XFree86.0.log-nemfagyi

with pax nx, freezing:
http://fellow.linuxforum.hu/egyeb/strace-fagyi
http://fellow.linuxforum.hu/egyeb/XFree86.0.log-fagyi

fellow

---
http://fellow.linuxforum.hu/ - faq, debian desktop kialakitasa, linux kernel konfiguralasa, -pear kernelpatch, egyebek


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