On Thu, Jun 18 2020 at 2:56am -0400, JeongHyeon Lee <jhs2.lee@xxxxxxxxxxx> wrote: > Hello, Dear devcice-mapper maintainers. > > I'm JeongHyeon Lee, work in Samsung. I'm chage of DM-Verity feature with > Mr. sunwook eom. > I have a patch or suggestion about DM-Verity error handling. > > Our device (smart phone) need DM-Verity feature. So I hope there is new > mode DM-Verity error handling. > This new mode concept is When detect corrupted block, will be go to panic. > > Because our team policy is found device DM-Verity error, device will go > panic. > And then analyze what kind of device fault (crash UFS, IO error, DRAM > bit flip etc) > > In addition to the smart phone, I would like to have an option that > users or administrators can use accordingly. > There are patch contents in the attachment. I would really appreciate it > if you could check it. > > I will look forward to hearing from yours. > Thank you :) > I do not accept that panicing the system because of verity failure is reasonable. In fact, even rebooting (via DM_VERITY_MODE_RESTART) looks very wrong. The device should be put in a failed state and left for admin recovery. Mike
