Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > linux.kernel > #1608712

Re: [PATCH 3/9] arm64: mm: install SError abort handler

From Mark Rutland <mark.rutland@arm.com>
Newsgroups linux.kernel
Subject Re: [PATCH 3/9] arm64: mm: install SError abort handler
Date 2017-03-24 18:40 +0100
Message-ID <toBlU-4TS-15@gated-at.bofh.it> (permalink)
References <toyHo-2WH-5@gated-at.bofh.it> <toyHp-2WH-33@gated-at.bofh.it> <tozaq-3qf-7@gated-at.bofh.it> <toAzw-4jh-11@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On Fri, Mar 24, 2017 at 09:48:40AM -0700, Doug Berger wrote:
> On 03/24/2017 08:16 AM, Mark Rutland wrote:
> >On Fri, Mar 24, 2017 at 07:46:26AM -0700, Doug Berger wrote:

> If you would consider an alternative implementation where we scrap
> the SError handler (i.e. maintain the ugliness in our downstream
> kernel) in favor of a more gentle user mode crash on SError that
> allows the kernel the opportunity to service the interrupt for
> diagnostic purposes I could try to repackage that.

If this is just for diagnostic purposes, I believe you can register a
panic notifier, which can then read from the bus. The panic will occur,
but you'll have the opportunity to log some information to dmesg.

Thanks,
Mark.

Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

[PATCH 3/9] arm64: mm: install SError abort handler Doug Berger <opendmb@gmail.com> - 2017-03-24 15:50 +0100
  Re: [PATCH 3/9] arm64: mm: install SError abort handler Mark Rutland <mark.rutland@arm.com> - 2017-03-24 16:20 +0100
    Re: [PATCH 3/9] arm64: mm: install SError abort handler Doug Berger <opendmb@gmail.com> - 2017-03-24 17:50 +0100
      Re: [PATCH 3/9] arm64: mm: install SError abort handler Mark Rutland <mark.rutland@arm.com> - 2017-03-24 18:40 +0100
        Re: [PATCH 3/9] arm64: mm: install SError abort handler Florian Fainelli <f.fainelli@gmail.com> - 2017-03-24 19:00 +0100
          Re: [PATCH 3/9] arm64: mm: install SError abort handler Mark Rutland <mark.rutland@arm.com> - 2017-03-24 19:40 +0100
            Re: [PATCH 3/9] arm64: mm: install SError abort handler Florian Fainelli <f.fainelli@gmail.com> - 2017-03-24 20:10 +0100
              Re: [PATCH 3/9] arm64: mm: install SError abort handler Marc Zyngier <marc.zyngier@arm.com> - 2017-03-25 11:10 +0100

csiph-web