[Bug 1585668] Re: Random file corruption when writing large files to hba mounted volume

2016-05-25 Thread Rainier Ramos
The issue seems to be that the current default for max_sectors_kb is too
high for our setup:

$ cat /sys/block/sde/queue/max_sectors_kb
32767

Cutting this in half resolved our issue:

$ sudo sh -c 'echo 16384 > /sys/block/sde/queue/max_sectors_kb'

We made this permanent by adding a udev rule:

$ cat /etc/udev/rules.d/61-block-max-sectors.rules
ACTION=="add|change", KERNEL=="sd[a-z]", SUBSYSTEM=="block", 
DRIVERS=="qla2xxx", RUN+="/bin/sh -c '/bin/echo 16384 > 
/sys/block/%k/queue/max_sectors_kb'"

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Title:
  Random file corruption when writing large files to hba mounted volume

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[Bug 1585668] [NEW] Random file corruption when writing large files to hba mounted volume

2016-05-25 Thread Rainier Ramos
Public bug reported:

We have an Ubuntu 16.04 LTS server with a 3Par volume via QLogic HBA.
When mounted, writing large files to it repeatedly produces the
following errors:

[435753.554230] sd 5:0:0:1: [sde] tag#10 FAILED Result: hostbyte=DID_OK 
driverbyte=DRIVER_SENSE
[435753.554232] sd 5:0:0:1: [sde] tag#10 Sense Key : Illegal Request [current] 
[435753.554233] sd 5:0:0:1: [sde] tag#10 Add. Sense: Invalid field in cdb
[435753.554235] sd 5:0:0:1: [sde] tag#10 CDB: Write same(16) 93 08 00 00 00 00 
04 7f ff f7 00 7f ff ff 00 00
[435753.554236] blk_update_request: critical target error, dev sde, sector 
75497463

We see similar errors with XFS and EXT4. ZFS seems to work fine though.
Here's how to recreate:

// create a large file
$ sudo dd if=/dev/urandom of=/random_file.bin bs=1048576 count=800

// 3Par volume is /dev/sde
$ sudo mkfs.xfs /dev/sde

// mount to /test
$ sudo mount /dev/sde /test

// watch syslog
$ tail -f /var/log/syslog &

$ sudo cp /random_file.bin /test

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-22-generic 4.4.0-22.40
ProcVersionSignature: Ubuntu 4.4.0-22.40-generic 4.4.8
Uname: Linux 4.4.0-22-generic x86_64
NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
AlsaDevices:
 total 0
 crw-rw 1 root audio 116,  1 May 24 12:30 seq
 crw-rw 1 root audio 116, 33 May 24 12:30 timer
AplayDevices: Error: [Errno 2] No such file or directory: 'aplay'
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
ArecordDevices: Error: [Errno 2] No such file or directory: 'arecord'
AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
Date: Wed May 25 10:18:33 2016
HibernationDevice: RESUME=UUID=8e53840e-3198-4383-ac8b-0a811ed2d0b0
InstallationDate: Installed on 2016-05-19 (5 days ago)
InstallationMedia: Ubuntu-Server 16.04 LTS "Xenial Xerus" - Release amd64 
(20160420.3)
IwConfig: Error: [Errno 2] No such file or directory: 'iwconfig'
Lsusb:
 Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
 Bus 001 Device 003: ID 0424:2514 Standard Microsystems Corp. USB 2.0 Hub
 Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
 Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: Dell Inc. PowerEdge R310
PciMultimedia:
 
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=
 LANG=en_US.UTF-8
 SHELL=/bin/bash
ProcFB:
 
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-22-generic 
root=UUID=459ae48a-619a-4e7e-8001-bbdf1968a944 ro
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-22-generic N/A
 linux-backports-modules-4.4.0-22-generic  N/A
 linux-firmware1.157
RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/17/2011
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.8.2
dmi.board.name: 05XKKK
dmi.board.vendor: Dell Inc.
dmi.board.version: A05
dmi.chassis.type: 23
dmi.chassis.vendor: Dell Inc.
dmi.modalias: 
dmi:bvnDellInc.:bvr1.8.2:bd08/17/2011:svnDellInc.:pnPowerEdgeR310:pvr:rvnDellInc.:rn05XKKK:rvrA05:cvnDellInc.:ct23:cvr:
dmi.product.name: PowerEdge R310
dmi.sys.vendor: Dell Inc.

** Affects: linux (Ubuntu)
 Importance: Undecided
 Status: New


** Tags: amd64 apport-bug xenial

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Title:
  Random file corruption when writing large files to hba mounted volume

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