Re: [BACKPORT 4.4.y 21/25] arm64: traps: disable irq in die()

2019-03-25 Thread Greg KH
On Fri, Mar 22, 2019 at 04:44:12PM +0100, Arnd Bergmann wrote: > From: Qiao Zhou > > In current die(), the irq is disabled for __die() handle, not > including the possible panic() handling. Since the log in __die() > can take several hundreds ms, new irq might come and interrupt > current die().

[BACKPORT 4.4.y 21/25] arm64: traps: disable irq in die()

2019-03-22 Thread Arnd Bergmann
From: Qiao Zhou In current die(), the irq is disabled for __die() handle, not including the possible panic() handling. Since the log in __die() can take several hundreds ms, new irq might come and interrupt current die(). If the process calling die() holds some critical resource, and some other