On Mon, Feb 06, 2012 at 03:57:52AM -0500, Trevor Kramer wrote: > I have a program which can use libnuma to allocate memory using > numa_alloc_onnode() or using malloc. When running in malloc mode > everything works fine but when running under libnuma mode I get > consistent kernel panics with the following traces. This only occurs > when multiple threads are running. Has anyone seen this before or have > any recommendations on how to debug further? Looks like a THP problem. For RHEL issues you normally need to talk to RedHat, these lists are more for mainline. -Andi > > crash> bt > PID: 62333 TASK: ffff883ff5698b40 CPU: 17 COMMAND: "test" > #0 [ffff883ff58378f0] machine_kexec at ffffffff810310cb > #1 [ffff883ff5837950] crash_kexec at ffffffff810b6392 > #2 [ffff883ff5837a20] oops_end at ffffffff814de670 > #3 [ffff883ff5837a50] die at ffffffff8100f2eb > #4 [ffff883ff5837a80] do_trap at ffffffff814ddf64 > #5 [ffff883ff5837ae0] do_invalid_op at ffffffff8100ceb5 > #6 [ffff883ff5837b80] invalid_op at ffffffff8100bf5b > [exception RIP: split_huge_page+2021] > RIP: ffffffff8116c605 RSP: ffff883ff5837c38 RFLAGS: 00010297 > RAX: 0000000000000001 RBX: ffff880ff704bc38 RCX: 000000000000fe9e > RDX: 0000000000000000 RSI: 0000000000000046 RDI: 0000000000000246 > RBP: ffff883ff5837d08 R8: 0000000000000000 R9: 0000000000000004 > R10: 0000000000000001 R11: ffff880ff6fb7906 R12: ffff880ff84b7aa8 > R13: fffffffffffffff2 R14: ffffea006c34c000 R15: ffffea006c34c000 > ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 > #7 [ffff883ff5837c30] split_huge_page at ffffffff8116c5aa > #8 [ffff883ff5837d10] __split_huge_page_pmd at ffffffff8116c6d1 > #9 [ffff883ff5837d40] unmap_vmas at ffffffff8113559e > #10 [ffff883ff5837e80] unmap_region at ffffffff8113cce1 > #11 [ffff883ff5837ef0] do_munmap at ffffffff8113d3a6 > #12 [ffff883ff5837f50] sys_munmap at ffffffff8113d4e6 > #13 [ffff883ff5837f80] system_call_fastpath at ffffffff8100b172 > RIP: 00007f12d33154d2 RSP: 00007f12884731f8 RFLAGS: 00010283 > RAX: 000000000000000b RBX: ffffffff8100b172 RCX: 0000000000000020 > RDX: 0000000000000000 RSI: 00000000003fe560 RDI: 00007f129f460000 > RBP: 00000000003fe560 R8: 00007f1288475300 R9: 00007f1288475300 > R10: 0000003d9c0eb3b0 R11: 0000000000000246 R12: 0000003d9c0f1fc0 > R13: 0000003d9c0f0e00 R14: 00007f129f460000 R15: 00007f129f460000 > ORIG_RAX: 000000000000000b CS: 0033 SS: 002b > > The machine is running RedHat Enterprise Server 6 with > 2.6.32-220.4.1.el6.x86_64. > > Thanks, > > Trevor > -- > To unsubscribe from this list: send the line "unsubscribe linux-numa" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > -- ak@xxxxxxxxxxxxxxx -- Speaking for myself only. -- To unsubscribe from this list: send the line "unsubscribe linux-numa" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
