Ubuntu
linux package

[Lenovo Ideapad 100-15IBY] resume from suspend > rmmod rtl8723be > kernel panic

Bug #1652544 reported by AZ on 2016-12-25

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	linux (Ubuntu)	Expired	Low	Unassigned

Bug Description

1. suspend
2. resume
3. wifi is now unusable
4. rmmod rtl8723be
5. find kernel BUG in dmesg

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-image-4.4.0-57-generic 4.4.0-57.78
ProcVersionSignature: Ubuntu 4.4.0-57.78-generic 4.4.35
Uname: Linux 4.4.0-57-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.4
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: mbr 1916 F.... pulseaudio
CurrentDesktop: Unity
Date: Mon Dec 26 00:53:04 2016
HibernationDevice: RESUME=UUID=5ce2d2d7-2115-465a-bd19-5ae7b194fb0b
InstallationDate: Installed on 2016-03-25 (275 days ago)
InstallationMedia: Lubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160325)
Lsusb:
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 003: ID 04f2:b49f Chicony Electronics Co., Ltd
Bus 001 Device 002: ID 174f:1169 Syntek
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
MachineType: LENOVO 80MJ
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-57-generic.efi.signed root=UUID=100567cc-c832-47cd-89e2-42a875689e44 ro quiet splash vt.handoff=7
RelatedPackageVersions:
linux-restricted-modules-4.4.0-57-generic N/A
linux-backports-modules-4.4.0-57-generic N/A
linux-firmware 1.157.6
SourcePackage: linux
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 09/03/2015
dmi.bios.vendor: LENOVO
dmi.bios.version: CCCN15WW(V2.01)
dmi.board.asset.tag: NO Asset Tag
dmi.board.name: Lenovo ideapad 1
dmi.board.vendor: LENOVO
dmi.board.version: SDK0J40700 WIN
dmi.chassis.asset.tag: NO Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Lenovo ideapad 100-15IBY
dmi.modalias: dmi:bvnLENOVO:bvrCCCN15WW(V2.01):bd09/03/2015:svnLENOVO:pn80MJ:pvrLenovoideapad100-15IBY:rvnLENOVO:rnLenovoideapad1:rvrSDK0J40700WIN:cvnLENOVO:ct10:cvrLenovoideapad100-15IBY:
dmi.product.name: 80MJ
dmi.product.version: Lenovo ideapad 100-15IBY
dmi.sys.vendor: LENOVO

Tags:

Revision history for this message

AZ (m-dev) wrote on 2016-12-25:

AlsaInfo.txt Edit (31.2 KiB, text/plain; charset="utf-8")
CRDA.txt Edit (251 bytes, text/plain; charset="utf-8")
CurrentDmesg.txt Edit (61.5 KiB, text/plain; charset="utf-8")
Dependencies.txt Edit (2.3 KiB, text/plain; charset="utf-8")
IwConfig.txt Edit (510 bytes, text/plain; charset="utf-8")
JournalErrors.txt Edit (11.9 KiB, text/plain; charset="utf-8")
Lspci.txt Edit (10.5 KiB, text/plain; charset="utf-8")
ProcCpuinfo.txt Edit (3.6 KiB, text/plain; charset="utf-8")
ProcEnviron.txt Edit (103 bytes, text/plain; charset="utf-8")
ProcInterrupts.txt Edit (2.6 KiB, text/plain; charset="utf-8")
ProcModules.txt Edit (7.4 KiB, text/plain; charset="utf-8")
PulseList.txt Edit (18.3 KiB, text/plain; charset="utf-8")
RfKill.txt Edit (246 bytes, text/plain; charset="utf-8")
UdevDb.txt Edit (157.7 KiB, text/plain; charset="utf-8")
WifiSyslog.txt Edit (88.9 KiB, text/plain; charset="utf-8")

Revision history for this message

AZ (m-dev) wrote on 2016-12-25:

dmesg log when BUG was hit Edit (95.5 KiB, text/plain)

Revision history for this message

Brad Figg (brad-figg) wrote on 2016-12-26: Status changed to Confirmed

This change was made by a bot.

Changed in linux (Ubuntu):
status:	New → Confirmed

Revision history for this message

penalvch (penalvch) wrote on 2016-12-31: Re: Kernel BUG in rtl8723be

AZ, thank you for reporting this and helping make Ubuntu better.

In order to allow additional upstream developers to examine the issue, at your earliest convenience, could you please test the latest upstream kernel available from http://kernel.ubuntu.com/~kernel-ppa/mainline/?C=N;O=D ? Please keep in mind the following:
1) The one to test is at the very top line at the top of the page (not the daily folder).
2) The release names are irrelevant.
3) The folder time stamps aren't indicative of when the kernel actually was released upstream.
4) Install instructions are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds .

If testing on your main install would be inconvenient, one may:
1) Install Ubuntu to a different partition and then test this there.
2) Backup, or clone the primary install.

If the latest kernel did not allow you to test to the issue (ex. you couldn't boot into the OS) please make a comment in your report about this, and continue to test the next most recent kernel version until you can test to the issue. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this issue is fixed in the mainline kernel, please add the following tags by clicking on the yellow circle with a black pencil icon, next to the word Tags, located at the bottom of the report description:
kernel-fixed-upstream
kernel-fixed-upstream-X.Y-rcZ

Where X, and Y are the first two numbers of the kernel version, and Z is the release candidate number if it exists.

If the mainline kernel does not fix the issue, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-X.Y-rcZ

Please note, an error to install the kernel does not fit the criteria of kernel-bug-exists-upstream.

Also, you don't need to apport-collect further unless specifically requested to do so.

It is most helpful that after testing of the latest upstream kernel is complete, you mark this report Status Confirmed.

Lastly, to keep this issue relevant to upstream, please continue to test the latest mainline kernel as it becomes available.

Thank you for your help.