The newest upstream kernel has the same bug. The symptoms in that
upstream bug are identical (I also got this after an update to Yosemite)
so this is almost certainly the same.
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** Summary changed:
- Kworker takes 100% CPU when booting with efi
+ Kworker takes 100% CPU after installing OSX Yosemite upgrade
** Description changed:
- When running on a Macbook Pro Retina that has been booted with EFI, a
- kworker process constantly takes 100% CPU. If you boot in legacy
Public bug reported:
When running on a Macbook Pro Retina that has been booted with EFI, a
kworker process constantly takes 100% CPU. If you boot in legacy mode
this does not happen.
When grepping for large values in /sys/firmware/acpi/interrupts, this
one stands out:
Public bug reported:
It failed.
ProblemType: KernelOops
DistroRelease: Ubuntu 14.10
Package: linux-image-3.16.0-16-generic 3.16.0-16.22
ProcVersionSignature: Ubuntu 3.16.0-16.22-generic 3.16.2
Uname: Linux 3.16.0-16-generic x86_64
Annotation: This occured during a previous suspend and prevented
Galen's symptoms are identical to mine.
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https://bugs.launchpad.net/bugs/1341997
Title:
Radeon drivers extremely flaky
Status in “linux” package in Ubuntu:
Confirmed
Public bug reported:
The drivers on AMD Radeon are extremely flaky now. They crash several
times a day with symptoms ranging from instant hard freezes to
flickering of the image followed by colors weirdly changing, e.g. the
drop shadows on windows turning bright red. During the latest crash, the
Christopher, please don't override Joseph's importance evaluations. He
is on the kernel team and knows better how to prioritise this bug.
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It does suspend after a minute or so.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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https://bugs.launchpad.net/bugs/1323645
Title:
[MacBookPro11,1]
** Tags removed: needs-upstream-testing
** Tags added: kernel-bug-exists-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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I can't confirm if this is a regression as this machine is brand new and
I only had trusty on it for a little while before upgrading. This issue
may be related to uefi booting, as suspend seemed to work when booting
in legacy bios mode (but that had a bug that made the system unbootable
after a
Public bug reported:
As requested by apw, here is the bug report for suspend problem on
Macbook retina. The issue is that activating suspend seems to take
forever until the machine actually goes to sleep (which you can tell by
they keyboard backlight going off). The attached logs were gathered in
Unfortunately I can't bisect due to the following reasons:
- when I tried to boot an older kernel (that used to work IIRC) and it failed
in the same way
- the failing kernel worked a few times, but just died on some random boot, so
this bug has some random component
- because the computer was
Debugging revealed that the kernel brings up the wifi card but network
manager does nothing when this happens. Running sudo service network-
manager restart fixes the issue.
** Package changed: linux (Ubuntu) = network-manager (Ubuntu)
** Changed in: network-manager (Ubuntu)
Status:
I can not because I had to wipe the machine and install trusty, so the
kernel is not the same version any more.
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https://bugs.launchpad.net/bugs/1322148
Title:
Public bug reported:
Running latest utopic on Macbook Pro Retina causes it to freeze on boot.
I can't file this with ubuntu-bug because the system is not bootable,
but the hardware information can be read from bug 1317862.
Attached is a screenshot of where it freezes when booted in recovery
As it does not boot, I can't run the command.
I'll try to do it once I get a new, working boot image done.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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I don't know if this is a regression or not, this laptop is brand new
and I have only ever had Trusty on it.
The same issue happens with the upstream kernel. When I plug in the wifi
dongle, this gets printed into dmesg:
[ 184.692697] usb 1-2: new high-speed USB device number 10 using xhci_hcd
[
Public bug reported:
Using a 13 inch MBP Retina suspend the machine either by closing the lid
or with the menu option. Then resume. All entries from the network
indicator have disappeared. The only option selectable is enable
networking but clicking on that has no effect. Network remains broken.
Public bug reported:
Compile this code:
#includesys/inotify.h
#includestdio.h
#includestring.h
#includeerrno.h
int main(int argc, char **argv) {
int inotifyid = inotify_init();
if(inotifyid == -1) {
fprintf(stderr, Could not init inotify.\n);
return 1;
}
int wd =
apport information
** Attachment added: Lspci.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880010/+files/Lspci.txt
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apport information
** Tags added: apport-collected
** Description changed:
Compile this code:
#includesys/inotify.h
#includestdio.h
#includestring.h
#includeerrno.h
int main(int argc, char **argv) {
int inotifyid = inotify_init();
if(inotifyid == -1) {
apport information
** Attachment added: CRDA.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880008/+files/CRDA.txt
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apport information
** Attachment added: CurrentDmesg.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880009/+files/CurrentDmesg.txt
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apport information
** Attachment added: BootDmesg.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880006/+files/BootDmesg.txt
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apport information
** Attachment added: Lsusb.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880011/+files/Lsusb.txt
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apport information
** Attachment added: ProcEnviron.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880013/+files/ProcEnviron.txt
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apport information
** Attachment added: ProcInterrupts.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880014/+files/ProcInterrupts.txt
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apport information
** Attachment added: ProcModules.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880015/+files/ProcModules.txt
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apport information
** Attachment added: PulseList.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880016/+files/PulseList.txt
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apport information
** Attachment added: UdevDb.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880017/+files/UdevDb.txt
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apport information
** Attachment added: ProcCpuinfo.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880012/+files/ProcCpuinfo.txt
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apport information
** Attachment added: UdevLog.txt
https://bugs.launchpad.net/bugs/1240857/+attachment/3880018/+files/UdevLog.txt
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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** Description changed:
Compile this code:
#includesys/inotify.h
#includestdio.h
#includestring.h
#includeerrno.h
int main(int argc, char **argv) {
- int inotifyid = inotify_init();
- if(inotifyid == -1) {
- fprintf(stderr, Could not init inotify.\n);
- return 1;
-
** Description changed:
+ * EDIT * This turned out to be a watch leak somewhere else. Sorry.
+
+
Compile this code:
#includesys/inotify.h
#includestdio.h
#includestring.h
#includeerrno.h
int main(int argc, char **argv) {
int inotifyid = inotify_init();
if(inotifyid ==
I have a different graphics card now so I can't test this any longer.
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https://bugs.launchpad.net/bugs/1135668
Title:
Intel graphics fails when bringing monitor out of
** Changed in: linux (Ubuntu)
Status: Confirmed = Fix Released
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https://bugs.launchpad.net/bugs/1186959
Title:
[DH77EB] Regression: Intel graphics fails when
Requested file attached.
** Attachment added: lsusb.log
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1211806/+attachment/3773540/+files/lsusb.log
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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It still exists.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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https://bugs.launchpad.net/bugs/1211806
Title:
USB disks with VFAT are not mountable
Public bug reported:
I have two USB disk devices that don't work anymore when I updated to
Saucy.
The first is a plain USB stick, which prints this into dmesg:
[26938.517257] sd 7:0:0:0: [sdd] 7928832 512-byte logical blocks: (4.05 GB/3.78
GiB)
[26938.518243] sd 7:0:0:0: [sdd] Write Protect is
Instead of that I just upgraded to Saucy. I have not been able to
reproduce this issue thus far. It may very well have been fixed. But as
this is a nondeterministic bug one can't be sure.
If the issue does not happen in the next few days, I'll mark this issue
closed.
** Changed in: linux
I could not reproduce on 3.11, but given how tricky this has turned out
to repro, I can't really guarantee that it is properly fixed.
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The BIOS update does not help. Here's the output:
EBH7710H.86A.0101.2013.0516.1649
05/16/2013
I'll try the new mainline kernel soon, hopefully tomorrow.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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