Hi, I have been suffering a lot from my Hurd system (running in VirtualBox) hanging at startup, just after "Hurd server bootstrap..." but before "INIT: version 2.88 booting".
I have been able to trace it back to getblk.c:248 (unsigned long addr_per_block = EXT2_ADDR_PER_BLOCK (sblock);) in ext2_getblk. It faults because sblock is NULL. I have traced the execution with debugging statements, and what seems to happen is as follows: 1. diskfs_remount is called (because root is remounted as rw) 2. RPCs are inhibited 3. diskfs_reload_global_state is called 4. sblock is set to NULL 5. While this is happening, ext2_getblk is called If you’re lucky, the superblock is read and sblock is set to point to this data before 5 (or at least before it gets to dereferencing sblock). If not, sblock is still NULL and thus a page fault is raised, causing the system to be stuck. Does anyone have an idea how this situation could be occurring? James Clarke
