Description of problem:

Upgrading to the bind-9.4.2-0.1.b1.fc7 packages in fedora 7 updates-testing
causes the twinkle application (which is linked to libbind) to go into a loop,
consume all memory and eventually crash the machine. ;( 

Moving back to the previous bind version makes it work again just fine. 

Doing an strace on twinkle when it's freaking out shows its looping in this: 

3138  brk(0x8e83d000)                   = 0x8e83d000
3138  open("/etc/irs.conf", O_RDONLY)   = -1 ENOENT (No such file or directory)
3138  open("/etc/hesiod.conf", O_RDONLY) = -1 ENOENT (No such file or directory)
3138  open("/etc/irs.conf", O_RDONLY)   = -1 ENOENT (No such file or directory)
3138  open("/etc/hesiod.conf", O_RDONLY) = -1 ENOENT (No such file or directory)
3138  open("/etc/irs.conf", O_RDONLY)   = -1 ENOENT (No such file or directory)
3138  brk(0x8e85f000)                   = 0x8e85f000
3138  open("/etc/hesiod.conf", O_RDONLY) = -1 ENOENT (No such file or directory)
3138  open("/etc/irs.conf", O_RDONLY)   = -1 ENOENT (No such file or directory)
3138  open("/etc/hesiod.conf", O_RDONLY) = -1 ENOENT (No such file or directory)
3138  open("/etc/irs.conf", O_RDONLY)   = -1 ENOENT (No such file or directory)
3138  open("/etc/hesiod.conf", O_RDONLY) = -1 ENOENT (No such file or directory)
3138  brk(0x8e880000) 

This could of course be a twinkle bug. I will try rebuilding against the current
bind. However, if this update breaks existing apps, it sounds like it might be
an issue in bind. 

Happy to test or provide more info.