On Thu, Jul 10, 2008 at 10:51:50AM +0530, Aneesh Kumar K.V wrote: > On Wed, Jul 09, 2008 at 03:00:04PM +0000, Gary Hawco wrote: > > Segfaults have returned with snapshots compiled after 070908--0010hrs GMT. > > > > That one worked fine. Is this a kernel or userspace segfault? i.e., is there a kernel oops message? If so, can you send us the oops message? It's really really useful to have it. Also, can you send us a dumpe2fs of the filesystem which ou were writing to? Some of the bugs which we've been finding are specific to a 1k block filesystem, for example, and sometimes that can help narrow down the bug. > Is your file system full when this happens ? Which user space call cause > the segfault ? An strace should be able to help you find that. We > actually have modified ext4 to give SIGBUS when we hit ENOSPC during > mmap write. For ex: > > root:/ext4# /root/mmaptest ./test4 0 100 > mmaping 0 to 100 > Bus error (core dumped) > root:/ext4# What Aneesh is talking about here is a userspace core dump which is normal, if the filesystem is full. I'm not sure that's what you're referring to assuming that "they're back" means you're referring to a kernel oops. Regards, - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
