I've got the same problem. Running:
Debian: Woody Kernel: 2.4.20-bf2.4-xfs Apache: Apache/1.3.33 PHP: 4.3.10-9 ImageMagick version: 6.0.6 PHP imagick version: 0.9.11 error occurs on: imagick_readimage($src) error given in apache error log: [Mon Apr 11 12:26:27 2005] [notice] child pid 22738 exit signal Segmentation fault (11)