linux-kernel - [lkp] [block] 3b4809b8718: 70.0% vmstat.system.cs

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Date:	Tue, 04 Aug 2015 18:44:59 +0800
From:	kernel test robot <ying.huang@...el.com>
TO:	Ming Lin <ming.l@....samsung.com>
CC:	LKML <linux-kernel@...r.kernel.org>
Subject: [lkp] [block] 3b4809b8718: 70.0% vmstat.system.cs

FYI, we noticed the below changes on

git://git.kernel.org/pub/scm/linux/kernel/git/mlin/linux.git block-generic-req
commit 3b4809b871881433e502d6fe70ae556bcfc9b10d ("block: remove split code in blkdev_issue_discard")

[   26.092126] blk_update_request: I/O error, dev sdc, sector 0
[   26.093754] request botched: dev sdc: type=1, flags=245b0081
[   26.095326]   sector 0, nr/cnr 0/0
[   26.096301] blk_update_request: I/O error, dev sdd, sector 0
[   26.096303] request botched: dev sdd: type=1, flags=245b0081
[   26.096304]   sector 0, nr/cnr 0/0
[   26.096306]   bio ffff88003f69c600, biotail ffff88003f69c600, len 0
[   26.096313] sd 0:0:1:2: [sdd] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[   26.096317] sd 0:0:1:2: [sdd] CDB: Unmap/Read sub-channel 42 00 00 00 00 00 00 00 18 00
[   26.096318] blk_update_request: I/O error, dev sdd, sector 0
[   26.108103] blk_update_request: I/O error, dev sda, sector 0
[   26.108106] request botched: dev sda: type=1, flags=245b0081
[   26.108107]   sector 0, nr/cnr 0/0
[   26.108108]   bio ffff88003f60e000, biotail ffff88003f60e000, len 0
[   26.108115] sd 0:0:1:0: [sda] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[   26.108119] sd 0:0:1:0: [sda] CDB: Unmap/Read sub-channel 42 00 00 00 00 00 00 00 18 00
[   26.108120] blk_update_request: I/O error, dev sda, sector 0
[   26.108139] blk_update_request: I/O error, dev sdb, sector 0
[   26.108141] request botched: dev sdb: type=1, flags=245b0081
[   26.108141]   sector 0, nr/cnr 0/0
[   26.108142]   bio ffff88003f994600, biotail ffff88003f994600, len 0
[   26.108145] sd 0:0:1:4: [sdb] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[   26.108147] sd 0:0:1:4: [sdb] CDB: Unmap/Read sub-channel 42 00 00 00 00 00 00 00 18 00
[   26.108148] blk_update_request: I/O error, dev sdb, sector 0
[   26.201490]   bio ffff88003f64a200, biotail ffff88003f64a200, len 0
[   26.213616] sd 0:0:1:3: [sdc] FAILED Result: hostbyte=DID_ERROR driverbyte=DRIVER_OK
[   26.216062] sd 0:0:1:3: [sdc] CDB: Unmap/Read sub-channel 42 00 00 00 00 00 00 00 18 00
[   26.218559] blk_update_request: I/O error, dev sdc, sector 0

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


Disclaimer:
Results have been estimated based on internal Intel analysis and are provided
for informational purposes only. Any difference in system hardware or software
design or configuration may affect actual performance.


Thanks,
Ying Huang

View attachment "job.yaml" of type "text/plain" (2866 bytes)

View attachment "reproduce" of type "text/plain" (423 bytes)

View attachment "dmesg" of type "text/plain" (78238 bytes)

View attachment "config-4.2.0-rc4-00005-g3b4809b" of type "text/plain" (89144 bytes)