Hi all, I've had 2 occasions where udev crashed during bootup. The second time carried a kernel log where the following line "BUG_ON(!list_empty(&entry->d_alias))" in d_instantiate is triggered when udev is attempting to create a symlink in /dev (which is tmpfs/shmem). I've tried reproducing this by doing as udev does: - create temporary symlink - move temporary symlink into place in a tight loop (multiple processes) while multiple other processes were removing the symlink in a tight loop. A third script was flushing the dentry/inode cache every so often using drop_caches. All to no avail. I've been digging around in the kernel sources, but I'm not sure what the d_alias field means and what the actual case is the BUG_ON is meant to catch. I'd like to be able to find a way to reproduce this, because so far it's happened only twice in 2 weeks over multiple systems doing many reboots in a testing setup. Can someone explain this to me in short? Thanks, Stijn -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>