Hi All, If you boot a KVM guest on an AMD family 15h and specify -cpu host, you'll get the following splat:
[ 0.031000] ------------[ cut here ]------------ [ 0.031000] WARNING: at arch/x86/kernel/cpu/perf_event_amd.c:772 amd_pmu_init+0x18c/0x249() [ 0.031000] Hardware name: Bochs [ 0.031000] Odd, counter constraints enabled but no core perfctrs detected! [ 0.031000] Modules linked in: [ 0.031000] Pid: 1, comm: swapper/0 Not tainted 3.9.0-0.rc1.git0.4.fc19.x86_64 #1 [ 0.031000] Call Trace: [ 0.031000] [<ffffffff81d10c67>] ? amd_pmu_init+0x18c/0x249 [ 0.031000] [<ffffffff8105c9a0>] warn_slowpath_common+0x70/0xa0 [ 0.031000] [<ffffffff81d106b3>] ? check_bugs+0x2d/0x2d [ 0.031000] [<ffffffff8105ca1c>] warn_slowpath_fmt+0x4c/0x50 [ 0.031000] [<ffffffff81d10c67>] amd_pmu_init+0x18c/0x249 [ 0.031000] [<ffffffff81d106e7>] init_hw_perf_events+0x34/0x428 [ 0.031000] [<ffffffff81d106b3>] ? check_bugs+0x2d/0x2d [ 0.031000] [<ffffffff8100210a>] do_one_initcall+0x10a/0x160 [ 0.031000] [<ffffffff81d06fa5>] kernel_init_freeable+0xcf/0x1fa [ 0.031000] [<ffffffff81629800>] ? rest_init+0x80/0x80 [ 0.031000] [<ffffffff8162980e>] kernel_init+0xe/0x190 [ 0.031000] [<ffffffff8164e22c>] ret_from_fork+0x7c/0xb0 [ 0.031000] [<ffffffff81629800>] ? rest_init+0x80/0x80 [ 0.031000] ---[ end trace a1e57d3cb8668105 ]--- That seems a bit excessive, and it gets picked up by auto-reporting tools like ABRT as a bug. Can we remove the WARN and just use pr_err or something else instead? josh -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
