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Re: 9.1 xdpyinfo oddity
On Wed, 21 Oct 2020, Mouse wrote:
> ktracing both working and failing runs, they appear identical (except
> for ASLR-style pointer differences) right up until it's about to start
> printing things. It does
>
> 507 1 xdpyinfo CALL __fstat50(1,0x7f7fffbd4de0)
>
> (where of course the PID and the pointer differ between runs).
> __fstat50 succeeds (the RET line shows 0) in each case, but in the
> "working" case, it then does ten mmaps of 0x1000 bytes (all mmaps are
> of ANONYMOUS memory), does TIOCGETA on stdout, and starts printing
It sounds to me as if xdpyinfo is checking to see if stdout is a tty and
is doing something wrong if it isn't. Doesn't sound like it has anything
to do with the server at all.
Eduardo
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