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** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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https://bugs.launchpad.net/bugs/1666109
Title:
Optimal I/O size isn't calculated properly with uas module, and it may
make data inconsistent on the disk and logical volume
Status in linux package in Ubuntu:
Confirmed
Status in Fedora:
Confirmed
Bug description:
1) Ubuntu release
Ubuntu 16.04.2 LTS x86_64 desktop
2) package name
linux-generic-hwe-16.04 (4.8.0.36.8)
3) Expected behavior
When I attached more than 3 uas devices, all uas devices would be probed as
SCSI disks.
4) What happened instead
The third device failed to be attached, and the first and second devices made
strange behaviors.
5) Additional information
When I used linux-generic (4.4.0.62.65), it was good.
I found this bug on Fedora 25 at first, and I confirmed the same bug exists
on Ubuntu 16.04 LTS.
https://bugzilla.redhat.com/show_bug.cgi?id=1420935
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ApportVersion: 2.20.9-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: gdm 886 F.... pulseaudio
yasuaki 1281 F.... pulseaudio
/dev/snd/controlC0: gdm 886 F.... pulseaudio
yasuaki 1281 F.... pulseaudio
DistroRelease: Ubuntu 18.04
InstallationDate: Installed on 2018-05-19 (0 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
IwConfig:
enp0s25 no wireless extensions.
lo no wireless extensions.
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-20-generic
root=UUID=1a82c712-c415-4f32-b052-d7d987989726 ro quiet splash vt.handoff=1
ProcVersionSignature: Ubuntu 4.15.0-20.21-generic 4.15.17
PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: No
PulseAudio daemon running, or not running as session daemon.
RelatedPackageVersions:
linux-restricted-modules-4.15.0-20-generic N/A
linux-backports-modules-4.15.0-20-generic N/A
linux-firmware 1.173
RfKill:
Tags: bionic
Uname: Linux 4.15.0-20-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups:
_MarkForUpload: True
dmi.bios.date: 01/18/2017
dmi.bios.vendor: Intel Corporation
dmi.bios.version: RYBDWi35.86A.0362.2017.0118.0940
dmi.board.name: NUC5i7RYB
dmi.board.vendor: Intel Corporation
dmi.board.version: H73774-101
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnIntelCorporation:bvrRYBDWi35.86A.0362.2017.0118.0940:bd01/18/2017:svn:pn:pvr:rvnIntelCorporation:rnNUC5i7RYB:rvrH73774-101:cvn:ct3:cvr:
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