kernel-packages team mailing list archive

["john.d@xxxxxxxxxxxx" <john.d@xxxxxxxxxxxx>]

I know it's not a "bug" per say .


On Sat, Mar 8, 2014 at 8:21 AM, Ben Collins <benmcollins13@xxxxxxxxx> wrote:

> John,
>
> This isn't a bug. You are normally booted in Linux with the "quiet" flag
> passed to the kernel command line. You won't see output like this unless
> you either boot without that flag, or run a command such as "dmesg
> --console-on" or twiddle some bits in /proc/sys/kernel/printk.
>
> This is normal behavior.
>
> ** Changed in: linux-ppc (Ubuntu)
>        Status: New => Invalid
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1282201
>
> Title:
>   SysRQ over serial console redirects to syslog
>
> Status in "linux-ppc" package in Ubuntu:
>   Invalid
>
> Bug description:
>
>   VERSION="13.10, Saucy Salamander"
>   ID=ubuntu
>   ID_LIKE=debian
>   PRETTY_NAME="Ubuntu 13.10"
>   VERSION_ID="13.10"
>
>   vmlinux-3.11.0-5-powerpc-e500mc
>
>
>   When SysRQ is enabled through  /proc :
>
>
>     echo 1 > /proc/sys/kernel/sysrq
>
>
>   All responses from SysRQ  sequences are redirected to /var/log/syslog ,
> not the serial console.
>
>   For instance:
>
>    SySRQ ( break )  l
>
>   Is suppose to report CPU stack traces .  The summary is sent to
> v/var/log/syslog , not the serial port, which
>   defeats the entire purpose of SysRQ feature which is intended for
> diagnostics of server issues.
>
>   The logging behavior can redirected to the console by using :
>
>    dmesg --console-on
>
>   This should be the default behavior for ppc ; It is also how x86 has
>   worked in the past.
>
> To manage notifications about this bug go to:
>
> https://bugs.launchpad.net/ubuntu/+source/linux-ppc/+bug/1282201/+subscriptions
>


--

*Regards,*
* John.*

*--*

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-- 
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux-ppc in Ubuntu.
https://bugs.launchpad.net/bugs/1282201

Title:
  SysRQ over serial console redirects to syslog

Status in “linux-ppc” package in Ubuntu:
  Invalid

Bug description:
  
  VERSION="13.10, Saucy Salamander"
  ID=ubuntu
  ID_LIKE=debian
  PRETTY_NAME="Ubuntu 13.10"
  VERSION_ID="13.10"

  vmlinux-3.11.0-5-powerpc-e500mc

  
  When SysRQ is enabled through  /proc :

    
    echo 1 > /proc/sys/kernel/sysrq

   
  All responses from SysRQ  sequences are redirected to /var/log/syslog , not the serial console. 

  For instance:

   SySRQ ( break )  l

  Is suppose to report CPU stack traces .  The summary is sent to v/var/log/syslog , not the serial port, which 
  defeats the entire purpose of SysRQ feature which is intended for diagnostics of server issues.

  The logging behavior can redirected to the console by using :

   dmesg --console-on

  This should be the default behavior for ppc ; It is also how x86 has
  worked in the past.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/linux-ppc/+bug/1282201/+subscriptions