| Message ID | 20191218143031.207870-5-dann.frazier@canonical.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/5,SRU,Disco] md/raid0: avoid RAID0 data corruption due to layout confusion. | expand |
diff --git a/drivers/md/raid0.c b/drivers/md/raid0.c index 534a51e7d7b02..8840715dced44 100644 --- a/drivers/md/raid0.c +++ b/drivers/md/raid0.c @@ -162,6 +162,8 @@ static int create_strip_zones(struct mddev *mddev, struct r0conf **private_conf) pr_err("md/raid0:%s: cannot assemble multi-zone RAID0 with default_layout setting\n", mdname(mddev)); pr_err("md/raid0: please set raid0.default_layout to 1 or 2\n"); + pr_err("md/raid0: Read the following page for more information:\n"); + pr_err("md/raid0: https://wiki.ubuntu.com/Kernel/Raid0LayoutMigration\n"); err = -ENOTSUPP; goto abort; }
BugLink: https://bugs.launchpad.net/bugs/1850540 Helping an administrator understand this issue and how to deal with it requires more text than achievable in a kernel error message. Let's clarify the issue in the Ubuntu wiki, and have the kernel emit a link to it. I've submitted a similar change upstream: https://marc.info/?l=linux-raid&m=157360088014027&w=2 Should it get merged, we should consider replacing this patch with that one. Otherwise, it is probably safe to drop this SAUCE patch after focal. Signed-off-by: dann frazier <dann.frazier@canonical.com> --- drivers/md/raid0.c | 2 ++ 1 file changed, 2 insertions(+)