Hi Marco, it seems the kernel is at fault and not udev. Have a look at this commit,
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=8442edc18843491978f7820f87dbdf293461290e especially the third blob - the unfixed version rounded even a ->name_len == 0 up to sizeof(struct inotify_event) and copied more into the userspace buffer than it was asked for, which is nicely visible in a udev strace log... read(13, "\4\0\0\0\0\200\0\0\0\0\0\0\20\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16) = 32 (( Received inotify_event for watch #4, IN_DELETE, len has been rounded up to 16, but the ->name is just "", which itself is fine because #4 was in this case a watch on '/dev/sdb' and not a directory )) I'm just compiling 2.6.31-rc9 which contains the fix (the mentioned commit was made 8 days ago). If I don't report back, at least this specific segfault instance is fixed. ;) Regards, Jan
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