Bugzilla FC3 and ssh

STYMA, ROBERT E (ROBERT) stymar at lucent.com
Wed Feb 23 19:37:51 UTC 2005


> >
> > Make sure you read the FC3 release notes on ssh [try: ssh -Y] before
> > assuming its a bug.
> 
> And make sure you have the most up2date openssh RPMs.  The 
> -X/-Y issue is 
> addressed by yesterday's update.
> 
Turns out the issue was related to -Y, turning on -Y or setting
it in .ssh/config fixed the problem.  The problem was not however
obvious from the release notes. 

The application could request the atom number for a given resource.
When it tried to read the resource, it would work if the atom number
was below a certain value. The value happened to always correspond 
to resource XFree86_VT (atom number varied with each X restart).
Resources with atom numbers greater than or equal to XFree86_VT
would get an invalid atom error.  This would kill
applications such as ddd and any others that used atoms beyond that
magic value.  Doing a direct displayback (after -nolisten was turned
off) worked fine.  This is why I suspected an ssh issue.

Thanks for the pointer in the right direction.

Robert E. Styma
Principal Engineer (DMTS)
Lucent Technologies, Phoenix
Email: stymar at lucent.com / styma at swlink.net
Phone: 623-582-7323
Company:  http://www.lucent.com
Personal: http://www.swlink.net/~styma




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