Re: [uml-devel] sysreq t back traces stopped working please help

[Boaz Harrosh <bharrosh@panasas.com>]

On 02/27/2014 09:16 PM, Richard Weinberger wrote:
> Hi!
> 
> Am 27.02.2014 20:05, schrieb Boaz Harrosh:
>> Hi Richard, uml hackers
>>
>> Since some time my "echo t > /proc/sysrq-trigger" stopped producing the proper global back-traces for all Kernel threads.
>> All I get is:
> 
> "some time" is a bit vague. Do you have more details?
> 

OK I've found my problem Da. It all goes to con0 and not at all to /var/log/messages (Fedora)
I'll recheck my log levels I see in  code KERN_INFO so i do think it should appear but I'll
recheck.

Which brings me back to my original problem with my UML setup that Fedora absolutely refuses
to use con0= as its main prompt and will only use con1= So I need to now chose what will
go to my bash console, the Kernel console output (printk(s)), or Fedora main prompt. Nothing
I tried would combine them both. Like it used to be before.

[ Here is what I use:
 option 1: vmlinux con0=fd:0,fd:1 con=pts (Will only send printk, invoking console becomes read-only)
 option 2: vmlinux con1=fd:0,fd:1 con=pts (invoking console becomes UML's main console RW. printk through
                                           log file only, bad for postmortem)

I'll use option 1 for now, so thanks
Boaz

> Thanks,
> //richard
> 


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