From: http://gcc.gnu.org/ml/gcc-testresults/2009-02/msg00069.html
FAIL: gcc.dg/pch/common-1.c -O0 -g -I. (test for excess errors) FAIL: gcc.dg/pch/common-1.c -O0 -g assembly comparison FAIL: gcc.dg/pch/common-1.c -O0 -I. (test for excess errors) ... Executing on host: /n/pc2/guerby/build-143818/gcc/xgcc -B/n/pc2/guerby/build-143818/gcc/ ./common-1.h -O0 -g -o common-1.h.gch (timeout = 300) PASS: ./common-1.h -O0 -g (test for excess errors) Executing on host: /n/pc2/guerby/build-143818/gcc/xgcc -B/n/pc2/guerby/build-143818/gcc/ /home/guerby/work/trunk/gcc/testsuite/gcc.dg/pch/common-1.c -O0 -g -I. -S -o common-1.s (timeout = 300) xgcc: Internal error: Segmentation fault (program cc1) Please submit a full bug report. Pasting the command is not enough so I'm unable to provide a backtrace. Matthias Klose is also seeing those failures on 4.4 at least since 20080523 http://people.debian.org/~doko/tmp/gcc-mips/gcc-snapshot_20080523-1_mipsel.bz2 http://people.debian.org/~doko/tmp/gcc-mips/gcc-snapshot_20090107-1_mipsel.bz2 FAIL: ./common-1.h -O0 -g (test for excess errors) FAIL: gcc.dg/pch/common-1.c -O0 -g FAIL: gcc.dg/pch/common-1.c -O0 -g assembly comparison FAIL: ./common-1.h -O0 (test for excess errors) FAIL: gcc.dg/pch/common-1.c -O0 FAIL: gcc.dg/pch/common-1.c -O0 assembly comparison ... -- Summary: [4.4 regression] All gcc.dg/pch tests FAIL on mipsel- linux Product: gcc Version: 4.4.0 Status: UNCONFIRMED Keywords: ice-on-valid-code Severity: normal Priority: P3 Component: pch AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: laurent at guerby dot net GCC target triplet: mipsel-unknown-linux-gnu http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39071