Ok, this has been giving me problems for quite awhile now, and I've
finally quit chasing it in userland, and am assuming that it is a kernel
problem (especially now that I see it doesn't affect 2.3.x, but only
2.2.x). Note this has affected 4 UltraSPARC's that I have access to (two
U5's, one U30, and one U60).
For starts, grep (and others, but grep is most apparent) will constantly
give errors about mmap() "Bad Address". This is random, and again it goes
away when using 2.3.47-pre (the latest version I am using).
The second problem is apparent in perl. When running scripts that usually
took a few seconds, I noticed some that were taking close to an hour, and
gobbling up cpu time. When I attached an strace -p to one of these
processes, I noticed it was in a constant output of brk()'s, each one
returning in 0x4000 increments. These came every second or so. Basically
the scripts were running in slow motion, since I could actually see and
read each syscall while it was running.
I'm unable to track this down, and I'm not even sure if they are related
problems.
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