Can it be anything with busybox implementation of reboot command? I am using similar other customized linux device with same kernel but some changes in busybox (not sure what) where reboot is working perfectly fine. I just need to know how can I proceed in this case to fix? Upgrading kernel version will not be possible for me. thanks, ravi On Tue, Sep 3, 2019 at 4:44 PM Greg KH <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > On Tue, Sep 03, 2019 at 03:55:32PM +0530, Temp Sha wrote: > > Hi, > > > > My linux box with kernel version 4.14.30 gets hung at tty_ldisc_lock > > while executing reboot command. The terminal freezes from where I have > > executed reboot, however other terminals are still accessible via ssh. > > Following is the stack trace of tty_ldisc_lock. Can any one help me in > > fixing this? > > 4.14.30 is 111 releases old (it came out in March of 2018). Please > update to something more realistic as odds are this might be fixed in > 4.14.141 which is the latest 4.14.y release. > > And if it does not work there, please test the latest 5.2 tree to see if > it is resolved there. If so, we can work to find the commit that > resolves the issue and then backport it. > > thanks, > > greg k-h