Re: [PATCH] powerpc/interrupt: Fix OOPS by not calling do_IRQ() from timer_interrupt()

2021-08-13 Thread Michael Ellerman
On Tue, 10 Aug 2021 16:13:16 + (UTC), Christophe Leroy wrote: > An interrupt handler shall not be called from another interrupt > handler otherwise this leads to problems like the following: > > Kernel attempted to write user page (afd4fa84) - exploit attempt? (uid: > 1000) >

Re: [PATCH] powerpc/interrupt: Fix OOPS by not calling do_IRQ() from timer_interrupt()

2021-08-12 Thread Nicholas Piggin
Excerpts from Christophe Leroy's message of August 11, 2021 2:13 am: > An interrupt handler shall not be called from another interrupt > handler otherwise this leads to problems like the following: > > Kernel attempted to write user page (afd4fa84) - exploit attempt? (uid: > 1000) >

[PATCH] powerpc/interrupt: Fix OOPS by not calling do_IRQ() from timer_interrupt()

2021-08-10 Thread Christophe Leroy
An interrupt handler shall not be called from another interrupt handler otherwise this leads to problems like the following: Kernel attempted to write user page (afd4fa84) - exploit attempt? (uid: 1000) [ cut here ] Bug: Write fault blocked by