The high CPU appears to be this thread:
Thread 1 (Thread 0x75d537d0a640 (LWP 6450) "gnome-shell"):
#0 __GI___ioctl (fd=14, request=3223872707) at
../sysdeps/unix/sysv/linux/ioctl.c:36
args = {{gp_offset = 16, fp_offset = 0, overflow_arg_area =
0x7ffe733f1340, reg_save_area = 0x7ffe733f1300}}
arg = <optimized out>
r = 0
#1 0x000075d51a58a486 in ??? () at
/lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so
#2 0x000075d51a62e6cb in ??? () at
/lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so
#3 0x000075d519b7cd95 in ??? () at
/lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so
#4 0x000075d5197ae5be in ??? () at
/lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so
#5 0x000075d5197af524 in ??? () at
/lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so
#6 0x000075d5197b0718 in ??? () at
/lib/x86_64-linux-gnu/libgallium-25.2.8-0ubuntu0.24.04.1.so
#7 0x000075d53bb0e68f in ??? () at
/usr/lib/x86_64-linux-gnu/mutter-14/libmutter-cogl-14.so.0
#8 0x000075d53bb28ec9 in cogl_frame_info_get_rendering_duration_ns () at
/usr/lib/x86_64-linux-gnu/mutter-14/libmutter-cogl-14.so.0
#9 0x000075d53c2a04b3 in ??? () at /lib/x86_64-linux-gnu/libmutter-14.so.0
#10 0x000075d53bb336b2 in _cogl_onscreen_notify_complete () at
/usr/lib/x86_64-linux-gnu/mutter-14/libmutter-cogl-14.so.0
#11 0x000075d53c388081 in ??? () at /lib/x86_64-linux-gnu/libmutter-14.so.0
#12 0x000075d53c390e60 in ??? () at /lib/x86_64-linux-gnu/libmutter-14.so.0
#13 0x000075d53c39d84d in ??? () at /lib/x86_64-linux-gnu/libmutter-14.so.0
#14 0x000075d53c744585 in g_main_dispatch (context=0x5699427c5bd0) at
../../../glib/gmain.c:3344
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https://bugs.launchpad.net/bugs/2155197
Title:
gnome-shell becomes unresponsive when browser is open to windy.com
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