linux-kernel - [lkp-robot] [x86/mce] 5de97c9f6d: WARNING:at_arch/x86/kernel/cpu/mcheck/mce.c:#mce_register_decode

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Date:   Tue, 18 Apr 2017 10:24:45 +0800
From:   kernel test robot <xiaolong.ye@...el.com>
To:     Tony Luck <tony.luck@...el.com>
Cc:     Ingo Molnar <mingo@...nel.org>, Borislav Petkov <bp@...e.de>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-edac <linux-edac@...r.kernel.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>, lkp@...org
Subject: [lkp-robot] [x86/mce]  5de97c9f6d:
 WARNING:at_arch/x86/kernel/cpu/mcheck/mce.c:#mce_register_decode_chain


FYI, we noticed the following commit:

commit: 5de97c9f6d85fd83af76e09e338b18e7adb1ae60 ("x86/mce: Factor out and deprecate the /dev/mcelog driver")
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git master

in testcase: boot

on test machine: qemu-system-i386 -enable-kvm -m 320M

caused below changes (please refer to attached dmesg/kmsg for entire log/backtrace):


+------------------------------------------------------------------------+------------+------------+
|                                                                        | 011d826111 | 5de97c9f6d |
+------------------------------------------------------------------------+------------+------------+
| boot_successes                                                         | 4          | 0          |
| boot_failures                                                          | 50         | 12         |
| WARNING:at_arch/x86/mm/dump_pagetables.c:#note_page                    | 50         | 6          |
| WARNING:at_arch/x86/kernel/cpu/mcheck/mce.c:#mce_register_decode_chain | 0          | 12         |
+------------------------------------------------------------------------+------------+------------+



[   39.479771] WARNING: CPU: 0 PID: 1 at arch/x86/kernel/cpu/mcheck/mce.c:162 mce_register_decode_chain+0x26/0x35
[   39.479771] WARNING: CPU: 0 PID: 1 at arch/x86/kernel/cpu/mcheck/mce.c:162 mce_register_decode_chain+0x26/0x35
[   39.514346] Modules linked in:
[   39.514346] Modules linked in:
[   39.524685] CPU: 0 PID: 1 Comm: swapper Not tainted 4.11.0-rc4-00026-g5de97c9f #118
[   39.524685] CPU: 0 PID: 1 Comm: swapper Not tainted 4.11.0-rc4-00026-g5de97c9f #118
[   39.548628] Call Trace:
[   39.548628] Call Trace:
[   39.557159]  dump_stack+0x16/0x18
[   39.557159]  dump_stack+0x16/0x18
[   39.568171]  __warn+0xcb/0xe2
[   39.568171]  __warn+0xcb/0xe2
[   39.578119]  ? mce_register_decode_chain+0x26/0x35
[   39.578119]  ? mce_register_decode_chain+0x26/0x35
[   39.593382]  ? mce_register_decode_chain+0x26/0x35
[   39.593382]  ? mce_register_decode_chain+0x26/0x35
[   39.608773]  warn_slowpath_null+0x25/0x27
[   39.608773]  warn_slowpath_null+0x25/0x27
[   39.621898]  mce_register_decode_chain+0x26/0x35
[   39.621898]  mce_register_decode_chain+0x26/0x35
[   39.636480]  dev_mcelog_init_device+0x4a/0x69
[   39.636480]  dev_mcelog_init_device+0x4a/0x69
[   39.650514]  ? mcheck_enable+0x20c/0x20c
[   39.650514]  ? mcheck_enable+0x20c/0x20c
[   39.663153]  ? mcheck_vendor_init_severity+0x3a/0x3a
[   39.663153]  ? mcheck_vendor_init_severity+0x3a/0x3a
[   39.679234]  do_one_initcall+0x8d/0x14e
[   39.679234]  do_one_initcall+0x8d/0x14e
[   39.691736]  ? repair_env_string+0x21/0x85
[   39.691736]  ? repair_env_string+0x21/0x85
[   39.704669]  ? parse_args+0x199/0x262
[   39.704669]  ? parse_args+0x199/0x262
[   39.716847]  kernel_init_freeable+0x10d/0x1f0
[   39.716847]  kernel_init_freeable+0x10d/0x1f0
[   39.731011]  ? do_early_param+0xcb/0xcb
[   39.731011]  ? do_early_param+0xcb/0xcb
[   39.743397]  ? rest_init+0x121/0x121
[   39.743397]  ? rest_init+0x121/0x121
[   39.755153]  kernel_init+0xb/0xe7
[   39.755153]  kernel_init+0xb/0xe7
[   39.766298]  ? schedule_tail+0x16/0x5b
[   39.766298]  ? schedule_tail+0x16/0x5b
[   39.778680]  ? rest_init+0x121/0x121
[   39.778680]  ? rest_init+0x121/0x121
[   39.790346]  ret_from_fork+0x21/0x2c
[   39.790346]  ret_from_fork+0x21/0x2c
[   39.801954] ---[ end trace 7f64d28d9e8e6a7d ]---


To reproduce:

        git clone https://github.com/01org/lkp-tests.git
        cd lkp-tests
        bin/lkp qemu -k <bzImage> job-script  # job-script is attached in this email



Thanks,
Xiaolong

View attachment "config-4.11.0-rc4-00026-g5de97c9f" of type "text/plain" (99468 bytes)

Download attachment "dmesg.xz" of type "application/octet-stream" (8668 bytes)