apport information ** Tags added: apport-collected bionic
** Description changed: 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 + --- + 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: ** Attachment added: "AlsaInfo.txt" https://bugs.launchpad.net/bugs/1666109/+attachment/5141549/+files/AlsaInfo.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1666109/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs