* Don Zickus <dzickus@xxxxxxxxxx> wrote: > On Tue, Dec 06, 2011 at 10:06:12AM +0100, Ingo Molnar wrote: > > > > * tip-bot for Don Zickus <dzickus@xxxxxxxxxx> wrote: > > > > > Commit-ID: 99e8b9ca90d688c3ac7d3a141b701c9694a93925 > > > Gitweb: http://git.kernel.org/tip/99e8b9ca90d688c3ac7d3a141b701c9694a93925 > > > Author: Don Zickus <dzickus@xxxxxxxxxx> > > > AuthorDate: Thu, 13 Oct 2011 15:14:26 -0400 > > > Committer: Ingo Molnar <mingo@xxxxxxx> > > > CommitDate: Mon, 5 Dec 2011 12:00:16 +0100 > > > > > > x86, NMI: Add NMI IPI selftest > > > > The NMI test-suite has caught some badness: > > > > [ 0.179992] calling tracer_alloc_buffers+0x0/0x224 @ 1 > > [ 0.183417] initcall tracer_alloc_buffers+0x0/0x224 returned 0 after 0 usecs > > [ 0.186658] calling init_trace_printk+0x0/0xf @ 1 > > [ 0.189992] initcall init_trace_printk+0x0/0xf returned 0 after 0 usecs > > [ 0.193324] Brought up 1 CPUs > > [ 0.196657] ---------------- > > [ 0.199989] | NMI testsuite: > > [ 0.203322] -------------------- > > [ 0.206655] remote IPI: > > [ 0.209991] ------------[ cut here ]------------ > > [ 0.213325] WARNING: at arch/x86/kernel/apic/ipi.c:109 default_send_IPI_mask_logical+0xdb/0x120() > > [ 0.216655] Hardware name: System Product Name > > [ 0.219987] empty IPI mask > > [ 0.223321] Modules linked in: > > [ 0.227015] Pid: 1, comm: swapper/0 Tainted: G W 3.2.0-rc4-tip+ #163124 > > [ 0.229987] Call Trace: > > [ 0.233326] [<c102e2a2>] warn_slowpath_common+0x72/0xa0 > > [ 0.236656] [<c101e04b>] ? default_send_IPI_mask_logical+0xdb/0x120 > > [ 0.239989] [<c101e04b>] ? default_send_IPI_mask_logical+0xdb/0x120 > > [ 0.243321] [<c102e373>] warn_slowpath_fmt+0x33/0x40 > > [ 0.246655] [<c101e04b>] default_send_IPI_mask_logical+0xdb/0x120 > > [ 0.249988] [<c1024025>] test_nmi_ipi.constprop.2+0x55/0xb0 > > [ 0.253320] [<c10240c8>] remote_ipi+0x48/0x80 > > [ 0.256654] [<c102417d>] dotest.constprop.3+0xd/0x90 > > [ 0.259987] [<c1024265>] nmi_selftest+0x65/0x120 > > [ 0.263320] [<c14d4e73>] native_smp_cpus_done+0x15/0xff > > [ 0.266653] [<c14ddf3f>] smp_init+0xdb/0xe2 > > [ 0.269988] [<c14cb7bb>] ? start_kernel+0x386/0x386 > > [ 0.273320] [<c14cb81d>] kernel_init+0x62/0x118 > > [ 0.276653] [<c138bb3e>] kernel_thread_helper+0x6/0x10 > > > > That's an empty IPI mask. NOTE the boot parameters i used: > > I'm on paternity leave, [...] Congrats! :) > [...] so I hacked this up for now and compiled tested this. > On Monday I can dive into this further if the patch below > doesn't solve it. I'll apply this one and will let you know if there are other problems (but i think it will solve it). Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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