On Mon, 2021-01-11 at 17:22 +0800, Can Guo wrote: > > > meaning you are tring to access a register when clocks are > > > disabled. > > > This > > > leads to system CRASH. > > > > > > > OK, let it simple, share this kind of crash log becuase of access > > sysfs > > node in the shutdown flow. > > > > > > > [2] OCP is over current protection. While UFS shutting down, you > > > may > > > have put UFS regulators to LPM. After that, if you are still > > > trying > > > to > > > talk to UFS, OCP can happen on VCCQ/VCCQ2. This leads to system > > > CRASH > > > too. > > > > the same as above, share the crash log. > > > > If you have hand-on experiences on NoC and/or OCP issues, you won't > ask > for the crash log. The tricky parts about critial NoC and OCP issues > is OK, interesting. would you tell me which register access node in ufs- sysfs.c can trigger this crash? let me verify your statement. Bean >
