Randy Dunlap wrote: > 2 out of 2 x86_64 SMP boots stop with: > > calling tcp_congestion_default+0x0/0x12 @ 1 > initcall tcp_congestion_default+0x0/0x12 returned 0 after 2 usecs > Freeing unused kernel memory: 448k freed > Write protecting the kernel read-only data: 4816k > int3: 0000 [#1] SMP > last sysfs file: > CPU 2 > Modules linked in: > Pid: 0, comm: events/0 Not tainted 2.6.27-next-20081023 #1 > RIP: 0010:[<ffffffff8078ba2b>] [<ffffffff8078ba2b>] nmi_cpu_busy+0x1/0x15 > RSP: 0018:ffff88017faa7f80 EFLAGS: 00000086 > RAX: 00000000ffffffff RBX: ffff88027f60e000 RCX: ffff88017fa98000 > RDX: ffffffff807eb480 RSI: 0000000000000000 RDI: ffffffff807b9e5c > RBP: ffff88017faa7f98 R08: 0000000000000000 R09: ffff88002802c768 > R10: 0000000000000000 R11: ffff88027e023e90 R12: 0000000000000002 > R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 > FS: 0000000000000000(0000) GS:ffff88017fa32280(0000) knlGS:0000000000000000 > CS: 0010 DS: 0018 ES: 0018 CR0: 000000008005003b > CR2: 0000000000000000 CR3: 0000000000201000 CR4: 00000000000006e0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 > Process events/0 (pid: 0, threadinfo ffff88017fa8c000, task ffff88017fa98000) > Stack: > ffffffff80257afe ffffffff8076d938 0000000000000000 ffff88017faa7fa8 > ffffffff8021f1b0 ffff88017fa8de50 ffffffff8020cabb ffff88017fa8de50 <EOI> > ffff88017fa8ded8 ffff88027e023e90 0000000000000000 ffff88002802c768 > Call Trace: > <IRQ> <0> [<ffffffff80257afe>] ? generic_smp_call_function_interrupt+0x35/0xd7 > [<ffffffff8021f1b0>] smp_call_function_interrupt+0x1f/0x2f > [<ffffffff8020cabb>] call_function_interrupt+0x6b/0x70 > <EOI> <0> [<ffffffff80212659>] ? default_idle+0x2b/0x40 > [<ffffffff8021287d>] ? c1e_idle+0xe5/0xec > [<ffffffff8057072f>] ? atomic_notifier_call_chain+0xf/0x11 > [<ffffffff8020ad1d>] ? cpu_idle+0x48/0x66 > [<ffffffff80568784>] ? start_secondary+0x177/0x17c > Code: cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc <cc> cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc cc > RIP [<ffffffff8078ba2b>] nmi_cpu_busy+0x1/0x15 > RSP <ffff88017faa7f80> > Kernel panic - not syncing: Fatal exception in interrupt > > > Full boot log is at > http://oss.oracle.com/~rdunlap/kerneltest/logs/netcon-5175.log > and .config is at http://oss.oracle.com/~rdunlap/kerneltest/logs/kconfig-5175 Hi, this patch will fix this issue. http://marc.info/?l=linux-kernel&m=122482422513626&w=2 thanks, Hiroshi Shimamoto -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html