On Tue, Jan 12, 2021 at 05:31:54PM +0530, Pintu Agarwal wrote: > Hi, > > I am using Kernel: 4.9.217 for one of the ARM32 boards for Qualcomm SOC. > https://github.com/android-linux-stable/msm-4.9 > > But I think this is a general bug applicable to :Kernel 4.9 under > fs/sysfs/file.c > So, I wanted to quickly check here if others are familiar with this > issue and if it is fixed already. > Note, this issue does not occur in 4.14 Kernel. > > When I execute below command, the Kernel is crashing. > I tried to add few debug prints to find more details. I see that the > ops->show pointer is not valid (seems corrupted). > So I wanted to understand how this can happen only for this particular node. > Other sysfs entries are working fine. > > # cat /sys/power/rpmh_stats/master_stats Also note that this file is not in the upstream kernel tree, so there's not much we can do about this either... good luck! greg k-h
