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[PATCH 0/2] MIPS/PA-RISC: panic immediately when panic_on_oops

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  [PATCH 0/2] MIPS/PA-RISC: panic immediately when panic_on_oops Aaro Koskinen <aaro.koskinen@iki.fi> - 2016-03-09 21:10 +0100
    Re: [PATCH 0/2] MIPS/PA-RISC: panic immediately when panic_on_oops Ralf Baechle <ralf@linux-mips.org> - 2016-03-10 01:10 +0100

#1354417 — [PATCH 0/2] MIPS/PA-RISC: panic immediately when panic_on_oops

Hi,

MIPS and PA-RISC want to sleep 5 seconds before panicking when
panic_on_oops is set, with no apparent reason. We should remove
this feature, since some users may want their systems to fail as
quickly as possible.

Users who want to delay reboot after panic can use PANIC_TIMEOUT.

Also, this change will unify the behaviour with other architectures.

Aaro Koskinen (2):
  MIPS: panic immediately when panic_on_oops
  PA-RISC: panic immediately when panic_on_oops

 arch/mips/kernel/traps.c   | 5 +----
 arch/parisc/kernel/traps.c | 5 +----
 2 files changed, 2 insertions(+), 8 deletions(-)

-- 
2.4.0

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#1354703

On Wed, Mar 09, 2016 at 10:08:41PM +0200, Aaro Koskinen wrote:

> MIPS and PA-RISC want to sleep 5 seconds before panicking when
> panic_on_oops is set, with no apparent reason. We should remove
> this feature, since some users may want their systems to fail as
> quickly as possible.
> 
> Users who want to delay reboot after panic can use PANIC_TIMEOUT.
> 
> Also, this change will unify the behaviour with other architectures.

I did a bit of dumpster diving, commit cea6a4ba8acfba6f59cc9ed71e0d05cb770b9d9c
("[PATCH] panic_on_oops: remove ssleep()") removed the 5 second delay
from ARM, i386, ia64, powerpc, x86_64 and xtensa on 2006-03-07.

The idea once upon a time probably was to keep the panic message on the
console long enough so somebody has _maybe_ a chance to read it.  Which
is a pretty weak solution.

  Ralf

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