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

Groups > linux.kernel > #1370701

Re: [PATCH v5 3/9] x86/head: Move early exception panic code into early_fixup_exception

From Arjan van de Ven <arjan@linux.intel.com>
Newsgroups linux.kernel
Subject Re: [PATCH v5 3/9] x86/head: Move early exception panic code into early_fixup_exception
Date 2016-04-04 17:40 +0200
Message-ID <rkeLE-57u-23@gated-at.bofh.it> (permalink)
References (3 earlier) <rjAbv-IR-5@gated-at.bofh.it> <rjAEy-Vu-3@gated-at.bofh.it> <rjAOe-Z0-7@gated-at.bofh.it> <rkbkK-2rF-23@gated-at.bofh.it> <rkeLE-57u-25@gated-at.bofh.it>
Organization linux.* mail to news gateway

Show all headers | View raw

On 4/4/2016 8:32 AM, Andy Lutomirski wrote:
>
> Adding locking would be easy enough, wouldn't it?
>
> But do any platforms really boot a second CPU before switching to real
> printk?  Given that I see all the smpboot stuff in dmesg, I guess real
> printk happens first.  I admit I haven't actually checked.

adding locking also makes things more fragile in terms of getting the last thing out
before you go down in flaming death....

until it's a proven problem, this early, get the message out at all is more important
than getting it out perfectly, sometimes.

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

Thread

Re: [PATCH v5 3/9] x86/head: Move early exception panic code into  early_fixup_exception Borislav Petkov <bp@alien8.de> - 2016-04-02 20:40 +0200
  Re: [PATCH v5 3/9] x86/head: Move early exception panic code into early_fixup_exception Andy Lutomirski <luto@amacapital.net> - 2016-04-02 22:20 +0200
    Re: [PATCH v5 3/9] x86/head: Move early exception panic code into  early_fixup_exception Borislav Petkov <bp@alien8.de> - 2016-04-02 22:50 +0200
      Re: [PATCH v5 3/9] x86/head: Move early exception panic code into early_fixup_exception Andy Lutomirski <luto@amacapital.net> - 2016-04-02 23:00 +0200
        Re: [PATCH v5 3/9] x86/head: Move early exception panic code into  early_fixup_exception Jan Kara <jack@suse.cz> - 2016-04-04 14:00 +0200
          Re: [PATCH v5 3/9] x86/head: Move early exception panic code into  early_fixup_exception Peter Zijlstra <peterz@infradead.org> - 2016-04-04 14:50 +0200
          Re: [PATCH v5 3/9] x86/head: Move early exception panic code into  early_fixup_exception Arjan van de Ven <arjan@linux.intel.com> - 2016-04-04 17:40 +0200
          Re: [PATCH v5 3/9] x86/head: Move early exception panic code into early_fixup_exception Andy Lutomirski <luto@amacapital.net> - 2016-04-04 17:40 +0200
            Re: [PATCH v5 3/9] x86/head: Move early exception panic code into  early_fixup_exception Peter Zijlstra <peterz@infradead.org> - 2016-04-04 18:10 +0200
              Re: [PATCH v5 3/9] x86/head: Move early exception panic code into  early_fixup_exception Borislav Petkov <bp@alien8.de> - 2016-04-04 21:40 +0200
                Re: [PATCH v5 3/9] x86/head: Move early exception panic code into early_fixup_exception Andy Lutomirski <luto@amacapital.net> - 2016-04-04 23:40 +0200
                Re: [PATCH v5 3/9] x86/head: Move early exception panic code into  early_fixup_exception Borislav Petkov <bp@alien8.de> - 2016-04-04 23:50 +0200

csiph-web