[Randy Dunlap - Thu, Oct 23, 2008 at 10:43:40AM -0700] | 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 | | --- | ~Randy | Hi Randy, i don't remember the details -- these int3 opcodes are likely to come from some paging or stack protector... hmm... can't remember absolutely :) There was a thread on LKML about half a year ago about why to fill pages with int3 opcode. But I may be absolutely wrong :) - Cyrill - -- 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
