Re: [PATCH v2] kdb: Make kdb_printf robust to run in NMI context

2020-05-26 Thread Sumit Garg
On Fri, 22 May 2020 at 22:05, Daniel Thompson wrote: > > On Fri, May 22, 2020 at 08:03:47PM +0530, Sumit Garg wrote: > > While rounding up CPUs via NMIs, its possible that a rounded up CPU > > maybe holding a console port lock leading to kgdb master CPU stuck in > > a deadlock during invocation

Re: [PATCH v2] kdb: Make kdb_printf robust to run in NMI context

2020-05-22 Thread Daniel Thompson
On Fri, May 22, 2020 at 08:03:47PM +0530, Sumit Garg wrote: > While rounding up CPUs via NMIs, its possible that a rounded up CPU > maybe holding a console port lock leading to kgdb master CPU stuck in > a deadlock during invocation of console write operations. So in order > to avoid such a