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[Bug 1575467] Re: [Dell Inspiron 3451] WARNING: CPU: 1 PID: 1297 at /build/linux-lts-utopic-vy2yyy/linux-lts-utopic-3.16.0/drivers/gpu/drm/i915/intel_display.c:1743 vlv_wait_port_ready+0x126/0x170 [i915]()
BzukTuk 2016-02-01 22:06:32 UTC
Created attachment 202701 [details]
Kernel bisection between v4.2 v4.1 for sudden freezes
Hi, small update.
My first bisect was from 4.1 to 4.2-rc1 and as first bad commit
[cf5d8a46a001c9421c7397699db55f962e0410fc] was flagged. But I was not so
sure that i did the bisection properly.
So today I made second bisection - git bisect start v4.2 v4.1. Bisection
process went without problem/confusion/doubt (as my first attempt did).
Last git bisect was good on commit
cf5d8a46a001c9421c7397699db55f962e0410fc (after 90 minutes of glxgears
and vlc). Git pointed that first bad commit was:
[8fb55197e64d5988ec57b54e973daeea72c3f2ff] drm/i915: Agressive
downclocking on Baytrail
then from commit cf5d8a46.. I cherry-picked 8fb55197 and this kernel
froze after 3 minutes.
More cherry-picking/testing tomorrow. Sorry if my previous post made confusion/unnecessary work.
Todays 'git bisect log' is in the attachment
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[Dell Inspiron 3451] WARNING: CPU: 1 PID: 1297 at /build/linux-lts-
Status in linux package in Ubuntu:
After upgrading from stock Ubuntu 14.04 to 16.04 my laptop
consistently freezes up and is unresponsive to keyboard or mouse. The
only way is to do a hard shutdown. I'm usually in a browser when this
happens, and often watching a video or two. It seems to happen more
often in Google Chrome than Firefox, but it happens with both. It has
happened at least once with no videos loaded. I haven’t observed it
freeze / hang when I’m not in a browser, but that's mainly what i use
my laptop for, so that's where most of my time is spent.
USER PID ACCESS COMMAND
/dev/snd/controlC0: andrew 1949 F.... pulseaudio
DistroRelease: Ubuntu 16.04
InstallationDate: Installed on 2015-08-08 (263 days ago)
InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1)
MachineType: Dell Inc. Inspiron 3451
Package: linux (not installed)
PATH=(custom, no user)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-21-generic.efi.signed root=UUID=d01f07be-c906-4024-8eef-a58ba3935298 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied
No PulseAudio daemon running, or not running as session daemon.
Uname: Linux 4.4.0-21-generic x86_64
UpgradeStatus: Upgraded to xenial on 2016-04-22 (4 days ago)
dmi.bios.vendor: Dell Inc.
dmi.board.vendor: Dell Inc.
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.product.name: Inspiron 3451
dmi.sys.vendor: Dell Inc.
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