linux-kernel - [ Regressions ] linux next 20201008: blk_update_request: I/O error, dev sda, sector 0 op 0x1:(WRITE) flags 0x800 phys

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Date:   Thu, 8 Oct 2020 23:41:32 +0530
From:   Naresh Kamboju <naresh.kamboju@...aro.org>
To:     dm-devel@...hat.com, open list <linux-kernel@...r.kernel.org>,
        linux-block <linux-block@...r.kernel.org>,
        drbd-dev@...ts.linbit.com,
        "open list:LIBATA SUBSYSTEM (Serial and Parallel ATA drivers)" 
        <linux-ide@...r.kernel.org>, linux-raid@...r.kernel.org,
        linux-mmc <linux-mmc@...r.kernel.org>,
        Linux-Next Mailing List <linux-next@...r.kernel.org>,
        lkft-triage@...ts.linaro.org
Cc:     Christoph Hellwig <hch@....de>, Song Liu <song@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Stephen Rothwell <sfr@...b.auug.org.au>,
        Jens Axboe <axboe@...nel.dk>
Subject: [ Regressions ] linux next 20201008: blk_update_request: I/O error,
 dev sda, sector 0 op 0x1:(WRITE) flags 0x800 phys_seg 0 prio class 0

There are two major regressions noticed on linux next tag 20201008.
I will bisect this problem and get back to you.

1) qemu_i386 and qemu_x86 boot failed due to mount rootfs failing [1].

        Starting Remount Root and Kernel File Systems...
[    1.750740] ata1.00: WARNING: zero len r/w req
[    1.751423] ata1.00: WARNING: zero len r/w req
[    1.752361] ata1.00: WARNING: zero len r/w req
[    1.753400] ata1.00: WARNING: zero len r/w req
[    1.754447] ata1.00: WARNING: zero len r/w req
[    1.755529] ata1.00: WARNING: zero len r/w req
[    1.756630] sd 0:0:0:0: [sda] tag#0 FAILED Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
[    1.758622] sd 0:0:0:0: [sda] tag#0 CDB: Synchronize Cache(10) 35
00 00 00 00 00 00 00 00 00
[    1.760576] blk_update_request: I/O error, dev sda, sector 0 op
0x1:(WRITE) flags 0x800 phys_seg 1 prio class 0
[    1.761534] Buffer I/O error on dev sda, logical block 0, lost sync
page write
[    1.764158] EXT4-fs (sda): I/O error while writing superblock


2) the devices boot pass but mkfs failed on x86_64, i386, arm64
Juno-r2 devices [2].

mkfs -t ext4 /dev/disk/by-id/ata-TOSHIBA_MG03ACA100_37O9KGL0F
[   72.159789] ata3.00: WARNING: zero len r/w req
[   72.164287] ata3.00: WARNING: zero len r/w req
[   72.168774] ata3.00: WARNING: zero len r/w req
[   72.168777] ata3.00: WARNING: zero len r/w req
[   72.168779] ata3.00: WARNING: zero len r/w req
[   72.168781] ata3.00: WARNING: zero len r/w req
[   72.168786] sd 2:0:0:0: [sda] tag#5 FAILED Result:
hostbyte=DID_ERROR driverbyte=DRIVER_OK cmd_age=0s
[   72.168788] sd 2:0:0:0: [sda] tag#5 CDB: Synchronize Cache(10) 35
00 00 00 00 00 00 00 00 00
[   72.168791] blk_update_request: I/O error, dev sda, sector 0 op
0x1:(WRITE) flags 0x800 phys_seg 0 prio class 0

Reported-by: Naresh Kamboju <naresh.kamboju@...aro.org>

metadata:
  git branch: master
  git repo: https://gitlab.com/Linaro/lkft/mirrors/next/linux-next
  git commit: e4fb79c771fbe2e6fcb3cffa87d5823a9bbf3f10
  git describe: next-20201008
  make_kernelversion: 5.9.0-rc8
  kernel-config:
https://builds.tuxbuild.com/pOW-FELX2VUycejkuyiKZg/kernel.config


steps to reproduce:
--------------------------
1) qemu boot command:

/usr/bin/qemu-system-x86_64 -cpu host -enable-kvm -nographic -net
nic,model=virtio,macaddr=DE:AD:BE:EF:66:06 -net tap -m 1024 -monitor
none -kernel bzImage --append "root=/dev/sda  rootwait
console=ttyS0,115200" -hda
rpb-console-image-lkft-intel-corei7-64-20200723162342-41.rootfs.ext4
-m 4096 -smp 4 -nographic

2) boot x86_64 with linux next 20201008 tag kernel and attach SDD drive.

mkfs -t ext4 /dev/<drive-partition>

Full log links,
[1 ]https://lkft.validation.linaro.org/scheduler/job/1823906#L688
[2] https://lkft.validation.linaro.org/scheduler/job/1823938#L2065


-- 
Linaro LKFT
https://lkft.linaro.org