Serious issue with serial console in 5.4

[Robert Watson]

On Thu, 21 Jul 2005, Eirik Øverby wrote:

>> I've only seen the issue when logging out of a serial console session, 
>> and had previously hypothesized that it had to do with the simultaneous 
>> timing of a console message from syslog and the opening/closing of the 
>> console's tty due to logging out and getty restarting, resulting in a 
>> reference count improperly hitting zero.
>
> I did indeed make some changes to my syslog configuration after getting 
> the serials online. Your theory might not be entirely off. Let me know 
> if I should post my syslog.conf file or anything else here or 
> elsewhere...

Since you appear to be able to reliably reproduce the problem (whereas I 
was able to reproduce it only after several hours of quite active serial 
console work), it would be quite interesting to answer the following 
question:

   If you cause syslogd not to send any output to /dev/console, does the
   problem go away?

Thanks,

Robert N M Watson