Xorg Segmentation fault on xorg_backtrace,os_move_fd

[Jun Ebihara <jun%soum.co.jp@localhost>]

On NetBSD/i386 8.99.43 on Thinkpad X40 and Acer netbook,

After some minitues startx and mikutter,
X always falls into Segmentation fault, 
on xorg_backtrace,os_move_fd

https://twitter.com/ebijun/status/1142974161284812800

I've got comment about it.
https://twitter.com/needydev/status/1143066020577501184

"I am assuming this is the same bug as "
https://v4.freshbsd.org/commit/netbsd/xsrc/zI2eGWKIwQs2SnpB

dmesgs:
https://github.com/ebijun/NetBSD/blob/master/dmesg/i386/Thinkpad_X40
https://github.com/ebijun/NetBSD/blob/master/dmesg/i386/Acer_AspireONE_ZG8

--
Jun Ebihara