linux-kernel - [compiler/gcc4] a9f180345f5: -100.0% last_state.is_incomplete

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Date:	Tue, 30 Sep 2014 16:14:12 +0800
From:	Fengguang Wu <fengguang.wu@...el.com>
To:	Steven Noonan <steven@...inklabs.net>
Cc:	Dave Hansen <dave.hansen@...el.com>,
	Ingo Molnar <mingo@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>, lkp@...org
Subject: [compiler/gcc4] a9f180345f5: -100.0% last_state.is_incomplete_run

Hi Steven,

FYI, we noticed that your commit a9f180345f5378ac87d80ed0bea55ba421d83859
("compiler/gcc4: Make quirk for asm_volatile_goto() unconditional") fixed
a number of machine boot failures in our LKP test farm. This is really helpful!
Our gcc version is 4.9.1 (Debian 4.9.1-11).

569d6557ab957d6  a9f180345f5378ac87d80ed0b
---------------  -------------------------
     %stddev        %change               %stddev
            \          |                 /
         1 ± 0%    -100.0%          0 ± 0%  lkp-st02/dd-write/5m-11HDD-RAID5-cfq-btrfs-100dd
         1 ± 0%    -100.0%          0 ± 0%  TOTAL dmesg.kernel_BUG_at_fs/nfs/pagelist.c

569d6557ab957d6  a9f180345f5378ac87d80ed0b
---------------  -------------------------
         1 ± 0%    -100.0%          0 ± 0%  lkp-st02/dd-write/5m-11HDD-RAID5-cfq-btrfs-100dd
         1 ± 0%    -100.0%          0 ± 0%  TOTAL dmesg.Kernel_panic-not_syncing:Fatal_exception

569d6557ab957d6  a9f180345f5378ac87d80ed0b
---------------  -------------------------
         1 ± 0%    -100.0%          0 ± 0%  lkp-st02/dd-write/5m-11HDD-RAID5-cfq-btrfs-100dd
         1 ± 0%    -100.0%          0 ± 0%  TOTAL dmesg.invalid_opcode

569d6557ab957d6  a9f180345f5378ac87d80ed0b
---------------  -------------------------
         1 ± 0%    -100.0%          0 ± 0%  ivb42/will-it-scale/futex4
         1 ± 0%    -100.0%          0 ± 0%  ivb44/fsmark/1x-1t-1HDD-xfs-4M-60G-NoSync
         1 ± 0%    -100.0%          0 ± 0%  ivb44/fsmark/1x-64t-1BRD_48G-btrfs-4M-40G-fsyncBeforeClose
         1 ± 0%    -100.0%          0 ± 0%  lkp-bdw01/blogbench/1SSD-btrfs
         1 ± 0%    -100.0%          0 ± 0%  lkp-hsw01/vm-scalability/300s-anon-rx-rand-mt
         1 ± 0%    -100.0%          0 ± 0%  lkp-sbx04/will-it-scale/futex3
         1 ± 0%    -100.0%          0 ± 0%  lkp-sbx04/will-it-scale/page_fault3
         1 ± 0%    -100.0%          0 ± 0%  lkp-st02/dd-write/5m-11HDD-RAID5-cfq-btrfs-100dd
         8 ± 0%    -100.0%          0 ± 0%  TOTAL last_state.is_incomplete_run

569d6557ab957d6  a9f180345f5378ac87d80ed0b
---------------  -------------------------
         1 ± 0%    -100.0%          0 ± 0%  ivb42/will-it-scale/futex4
         1 ± 0%    -100.0%          0 ± 0%  ivb44/fsmark/1x-1t-1HDD-xfs-4M-60G-NoSync
         1 ± 0%    -100.0%          0 ± 0%  ivb44/fsmark/1x-64t-1BRD_48G-btrfs-4M-40G-fsyncBeforeClose
         1 ± 0%    -100.0%          0 ± 0%  lkp-bdw01/blogbench/1SSD-btrfs
         1 ± 0%    -100.0%          0 ± 0%  lkp-hsw01/vm-scalability/300s-anon-rx-rand-mt
         1 ± 0%    -100.0%          0 ± 0%  lkp-sbx04/will-it-scale/futex3
         1 ± 0%    -100.0%          0 ± 0%  lkp-sbx04/will-it-scale/page_fault3
         1 ± 0%    -100.0%          0 ± 0%  lkp-st02/dd-write/5m-11HDD-RAID5-cfq-btrfs-100dd
         8 ± 0%    -100.0%          0 ± 0%  TOTAL last_state.booting

Thanks,
Fengguang
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