Messages in this thread | | | From | "Oza (Pawandeep) Oza" <> | Subject | RE: [KERNEL BUG] do_timer/tick_handover_do_timer 3.10.17 | Date | Thu, 7 May 2015 05:12:11 +0000 |
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Solution Statement: Fix the UTTERLY DEADLY bug.
Oza: that BUG() is LEGAL. Kernel is not a problem there. Somebody else outside of kernel/ARM (some other HW raises the bug), and send indication to kernel that I am not alive. So kernel choose to CRASH ITSELF.
So that is legal crash and wanted Crash.
But after Crash, jiffies do not increment.
Regards, -Oza
-----Original Message----- From: Mike Galbraith [mailto:umgwanakikbuti@gmail.com] Sent: Thursday, May 07, 2015 10:39 AM To: Oza (Pawandeep) Oza Cc: pawandeep oza; linux-kernel@vger.kernel.org; malayasen rout Subject: Re: [KERNEL BUG] do_timer/tick_handover_do_timer 3.10.17
On Thu, 2015-05-07 at 04:37 +0000, Oza (Pawandeep) Oza wrote: > Problem Statement: the timkeeping is stopped, do_timer is no more a > job of cpu0. > > The reason: the variable "tick_do_timer_cpu" is not set to correct CPU > (cpu0) > And when BUG() happens, the tick_do_timer_cpu variable stay set to 1, > 2 or 3 (we have 4 cores)
Solution Statement: Fix the UTTERLY DEADLY bug.
-Mike
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