Ok, I can't read. It says /* Bursts of 5 messages every two minutes */ static DEFINE_RATELIMIT_STATE(ratelimit, 2 * 60 * HZ, 5); so it is actually every *two* minutes. So it works as advertized (timestampss are every 2 minutes). So, the thing I'm thinking about is adding a "umip=quiet" which you supply at the kernel cmdline and no more output. How's that? [ 115.100225] umip: sidt[2578] ip:55a8f9ecf083 sp:7ffcd9824480: SIDT instruction cannot be used by applications. [ 115.101088] umip: sidt[2578] ip:55a8f9ecf083 sp:7ffcd9824480: For now, expensive software emulation returns the result. [ 117.020143] umip: sidt[2580] ip:560d91114083 sp:7fff5851a7e0: SIDT instruction cannot be used by applications. [ 117.021026] umip: sidt[2580] ip:560d91114083 sp:7fff5851a7e0: For now, expensive software emulation returns the result. [ 117.532120] umip: sidt[2582] ip:55791bacf083 sp:7ffcab72a7b0: SIDT instruction cannot be used by applications. [ 235.100938] umip_printk: 252529 callbacks suppressed [ 235.100940] umip: sidt[31772] ip:557e4bdd1083 sp:7ffd62327520: SIDT instruction cannot be used by applications. [ 235.102641] umip: sidt[31772] ip:557e4bdd1083 sp:7ffd62327520: For now, expensive software emulation returns the result. [ 235.104214] umip: sidt[31773] ip:55b4f9a39083 sp:7fffe26616b0: SIDT instruction cannot be used by applications. [ 235.105075] umip: sidt[31773] ip:55b4f9a39083 sp:7fffe26616b0: For now, expensive software emulation returns the result. [ 235.106700] umip: sidt[31774] ip:555eff064083 sp:7ffec0fa7890: SIDT instruction cannot be used by applications. [ 355.104933] umip_printk: 397903 callbacks suppressed [ 355.104935] umip: sidt[4081] ip:55a1e12ea083 sp:7ffd1c9e9db0: SIDT instruction cannot be used by applications. [ 355.106654] umip: sidt[4081] ip:55a1e12ea083 sp:7ffd1c9e9db0: For now, expensive software emulation returns the result. [ 355.108232] umip: sidt[4082] ip:5572e28ae083 sp:7ffd515477f0: SIDT instruction cannot be used by applications. [ 355.109120] umip: sidt[4082] ip:5572e28ae083 sp:7ffd515477f0: For now, expensive software emulation returns the result. [ 355.110728] umip: sidt[4083] ip:55bfbcb64083 sp:7ffd16a2d350: SIDT instruction cannot be used by applications. [ 475.108935] umip_printk: 397107 callbacks suppressed