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Date: Tue, 1 Nov 2016 17:07:52 +0800
From: Dou Liyang <douly.fnst@...fujitsu.com>
To: kernel test robot <xiaolong.ye@...el.com>
CC: <lkp@...org>, <x86@...nel.org>, <linux-kernel@...r.kernel.org>,
<linux-tip-commits@...r.kernel.org>, <hpa@...or.com>,
<mingo@...nel.org>, <yinghai@...nel.org>, <tglx@...utronix.de>
Subject: Re: [x86/acpi] 04c197c080: BUG: unable to handle kernel paging
request at 0000003000000010
Hi xiaolong,
Sorry for the late reply.
I think I should need to explain for this.
Firstly, please ignore this bug. Because, this patch has be discarded.
The work of this patch has already in the upstream(f3bf1dbe64).
Secondly, I think the cause of the bug is:
I use the "-EINVAL" incorrectly.
Thanks,
Dou.
This patch is repeated with him
At 10/11/2016 10:15 AM, kernel test robot wrote:
> FYI, we noticed the following commit:
>
> https://github.com/0day-ci/linux Dou-Liyang/Fix-the-local-APIC-id-validation-in-case-of-0xff/20161008-154907
> commit 04c197c080f2ed7a022f79701455c6837f4b9573 ("x86/acpi: Fix the local APIC id validation in case of 0xff")
>
> in testcase: will-it-scale
> with following parameters:
>
> test: unlink2
> cpufreq_governor: performance
>
>
> Will It Scale takes a testcase and runs it from 1 through to n parallel copies to see if the testcase will scale. It builds both a process and threads based test in order to see any differences between the two.
>
>
> on test machine: 72 threads Intel(R) Xeon(R) CPU E5-2699 v3 @ 2.30GHz with 128G memory
>
> caused below changes:
>
>
> +-------------------------------------------------------+------------+------------+
> | | 1e1a4b0f54 | 04c197c080 |
> +-------------------------------------------------------+------------+------------+
> | boot_successes | 2 | 4 |
> | boot_failures | 0 | 7 |
> | BUG:unable_to_handle_kernel | 0 | 3 |
> | Oops | 0 | 3 |
> | RIP:check_timer | 0 | 3 |
> | calltrace:native_smp_prepare_cpus | 0 | 3 |
> | Kernel_panic-not_syncing:Fatal_exception | 0 | 3 |
> | PANIC:double_fault | 0 | 2 |
> | Bad_pagetable | 0 | 1 |
> | RIP:copy_user_enhanced_fast_string | 0 | 1 |
> | Kernel_panic-not_syncing:Fatal_exception_in_interrupt | 0 | 1 |
> | Kernel_panic-not_syncing:Machine_halted | 0 | 1 |
> | RIP:vgacon_scroll | 0 | 1 |
> | invoked_oom-killer:gfp_mask=0x | 0 | 4 |
> | Mem-Info | 0 | 4 |
> +-------------------------------------------------------+------------+------------+
>
>
>
> [ 0.492621] ..MP-BIOS bug: 8254 timer not connected to IO-APIC
> [ 0.499130] ...trying to set up timer (IRQ0) through the 8259A ...
> [ 0.506027] ..... (found apic 2 pin 0) ...
> [ 0.510601] BUG: unable to handle kernel paging request at 0000003000000010
> [ 0.518391] IP: [<ffffffff8200964b>] check_timer+0x21d/0x61e
> [ 0.524722] PGD 0
> [ 0.526974] Oops: 0000 [#1] SMP
> [ 0.530477] Modules linked in:
> [ 0.533901] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 4.8.0-00989-g04c197c #1
> [ 0.541865] Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS SE5C610.86B.01.01.0008.021120151325 02/11/2015
> [ 0.553521] task: ffff882023b00000 task.stack: ffffc9000c468000
> [ 0.560129] RIP: 0010:[<ffffffff8200964b>] [<ffffffff8200964b>] check_timer+0x21d/0x61e
> [ 0.569170] RSP: 0000:ffffc9000c46bd90 EFLAGS: 00010082
> [ 0.575095] RAX: 0000003000000000 RBX: 0000000000000000 RCX: ffffffff81e5cb48
> [ 0.583058] RDX: 0000000000000001 RSI: 0000000000000046 RDI: 0000000000000046
> [ 0.591031] RBP: ffffc9000c46be08 R08: 0000000000000000 R09: 0000000000000000
> [ 0.598994] R10: 0000000000000040 R11: 0000000000000208 R12: 0000000000000002
> [ 0.606957] R13: 0000000000000002 R14: 0000000000000002 R15: ffff88103f00ae20
> [ 0.614927] FS: 0000000000000000(0000) GS:ffff88103f400000(0000) knlGS:0000000000000000
> [ 0.623958] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [ 0.630368] CR2: 0000003000000010 CR3: 000000207ee06000 CR4: 00000000001406f0
> [ 0.638331] Stack:
> [ 0.640574] 0000000000000000 0000000000000246 ffffffff00000000 ffff88103f002080
> [ 0.648870] ffff88103f002080 0000000000000017 0000000000000001 ffffc9000c46bdd8
> [ 0.657165] ffffffff8145869d ffffc9000c46bde8 0000000000000718 0000000000000001
> [ 0.665459] Call Trace:
> [ 0.668193] [<ffffffff8145869d>] ? radix_tree_lookup+0xd/0x10
> [ 0.674710] [<ffffffff8200a1a9>] setup_IO_APIC+0x17d/0x1c5
> [ 0.680937] [<ffffffff8200885c>] apic_bsp_setup+0xa1/0xac
> [ 0.687059] [<ffffffff820064b5>] native_smp_prepare_cpus+0x297/0x317
> [ 0.694259] [<ffffffff81ff1038>] kernel_init_freeable+0xcf/0x225
> [ 0.701072] [<ffffffff81929710>] ? rest_init+0x90/0x90
> [ 0.706911] [<ffffffff8192971e>] kernel_init+0xe/0x100
> [ 0.712744] [<ffffffff81936fc5>] ret_from_fork+0x25/0x30
> [ 0.718776] Code: ff 48 c7 c7 50 6d c9 81 e8 31 54 17 ff 89 da 44 89 ee 48 c7 c7 90 6d c9 81 e8 20 54 17 ff 48 8b 45 a8 48 8b 00 48 39 45 a8 74 1a <44> 39 70 10 75 0f 44 39 60 14 75 09 44 89 68 10 89 58 14 eb 26
> [ 0.740436] RIP [<ffffffff8200964b>] check_timer+0x21d/0x61e
> [ 0.746858] RSP <ffffc9000c46bd90>
> [ 0.750749] CR2: 0000003000000010
> [ 0.754461] ---[ end trace 3618134a8804dce5 ]---
> [ 0.759620] Kernel panic - not syncing: Fatal exception
>
>
> To reproduce:
>
> git clone git://git.kernel.org/pub/scm/linux/kernel/git/wfg/lkp-tests.git
> cd lkp-tests
> bin/lkp install job.yaml # job file is attached in this email
> bin/lkp run job.yaml
>
>
>
> Thanks,
> Kernel Test Robot
>
>
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