Bug 199995 – [GTK] WebKit spawns too many WebKitSharedMemory descriptors under some circumstances

• Status: NEW
• Component: WebKitGTK

According to ipcs -p, all these descriptors are shared with Xorg process. In Epiphany they may stack up to tens during usage, and in LuaKit, when resizing a window, I manage to have HUNDREDS of simultaneously opened descriptors. What are they needed for? Isn't it enough to use only 2–3 buffers for exchanging the graphics?

This also happens under Wayland, though the memory segments don't show up in ipcs -p, only in /proc/<pid>/fd/.

Moreover, almost all of them have the same content:

root@localhost:/proc/23872/fd# kill -STOP 23872
root@localhost:/proc/23872/fd# ls -l|grep eleted|col9|while read a; do LC_ALL=C diff "$a" 99; done
Binary files 46 and 99 differ
root@localhost:/proc/23872/fd# ls -l|grep eleted|wc -l
287