http://bugzilla.suse.com/show_bug.cgi?id=1099147 Bug ID: 1099147 Summary: btrfs: 16 EiB (and bigger) volumes running into kernel bug Classification: openSUSE Product: openSUSE Distribution Version: Leap 15.0 Hardware: Other OS: Other Status: NEW Severity: Normal Priority: P5 - None Component: Kernel Assignee: kernel-maintainers@forge.provo.novell.com Reporter: snwint@suse.com QA Contact: qa-bugs@suse.de Found By: --- Blocker: --- Created attachment 775294 --> http://bugzilla.suse.com/attachment.cgi?id=775294&action=edit kernel oops [While testing for some other bug I run into this one.] btrfs lets you create filesystems > 8 EiB when using multiple devices (which is a very nice feature btw). BUT runs into a kernel bug when it gets to 16 EiB. Here's what I did: dd if=/dev/zero of=foo0 bs=1E count=0 seek=5 dd if=/dev/zero of=foo1 bs=1E count=0 seek=5 dd if=/dev/zero of=foo2 bs=1E count=0 seek=6 mkfs.btrfs -d single foo0 foo1 foo2 losetup /dev/loop10 foo0 losetup /dev/loop11 foo1 losetup /dev/loop12 foo2 mount /dev/loop10 /mnt This works so far but when you actually copy some data into /mnt, there's a kernel oops (attached). The (same) crash also happens with sizes slightly above 16EiB. Seen on Leap (this log) and TW. -- You are receiving this mail because: You are on the CC list for the bug.