[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
** Changed in: powerd Status: Fix Committed = Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
This bug was fixed in the package powerd - 0.13+14.04.20140108.1-0ubuntu1 --- powerd (0.13+14.04.20140108.1-0ubuntu1) trusty; urgency=low [ Ricardo Salveti de Araujo ] * Using pkg-config files from hybris, and depending on latest version . [ Seth Forshee ] * Synchronously wait on the framebuffer state to change when entering/exiting suspend with kernels using the earlysuspend implementation to avoid races which can lead to attempting to use the display device while it is suspended. (LP: #1258655) [ Ubuntu daily release ] * Automatic snapshot from revision 105 -- Ubuntu daily release ps-jenk...@lists.canonical.com Wed, 08 Jan 2014 06:17:08 + ** Changed in: powerd (Ubuntu) Status: New = Fix Released ** Branch linked: lp:ubuntu/trusty-proposed/powerd -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
If I understand, we have a fix, so lets move with that. We can always improve mir to be more robust, but the heart of this problem was that mir/unity-mir was not given the guarantee that it needs (the system on enough to start operations). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
** Changed in: powerd Assignee: Kevin DuBois (kdub) = Seth Forshee (sforshee) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
Fix committed into lp:powerd at revision None, scheduled for release in powerd, milestone ubuntu-13.05 ** Changed in: powerd Status: In Progress = Fix Committed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
I disagree. Mir shouldn't behave badly because the display driver is behaving badly. And I don't think crashing really helps anyway. Won't unity just be respawned and again try to use the display device without doing anything to fix the unrecoverable state? If the display driver still hangs after powerd is changed to synchronize with early suspend / late resume, then we should try to fix the display driver. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
** Branch linked: lp:~sforshee/powerd/fix-display-timing ** Changed in: mir Milestone: 0.1.4 = None -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
On Fri, Dec 20, 2013 at 01:59:20AM -, Daniel van Vugt wrote: Forgive my silly question, but: Why can't we just be more fault-tolerant and avoid the offending throw from Mir? Log a warning at most, but don't intentionally crash on it. +1. However ... Would that result in an interaction with powerd rendering the system unusable? Or would it be sufficient to allow some recovery/retries? On mako I fear that the driver has bugs that may still result in unrecoverable problems. This is based on having found unity8 threads stuck in uninterruptible sleep when in this state due to being blocked on some mutex within the dispaly driver. We could try to fix this in the driver, but we may encounter similar problems with other android kernels, so I think we need to find some way to make powerd synchronize wrt the kernel early suspend processing. So I think we should do both: make Mir do something sane when the ioctl returns an error, and add a workaround to powerd to avoid this race. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
With the way things are now, I'm pretty sure if we simply retried in mir after experiencing an error, we would hang the driver. Once we get these throws, the driver has essentially been put into an unrecoverable state. It seems Seth's investigation aligned with my intuition about the driver. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
I've been poking at this a bit today, and I think it comes down to a race between powerd and the kernel's earlysuspend code. Here's the sequence of events I see in the logs for one case (there may also be other sequences that are problematic). 1. The initial state is that the screen is on. The power button is pressed. 2. powerd receives the button press, turns off the display, and releases its internal active state request. 3. powerd determines that suspend is possible and writes mem to /sys/power/state. The kernel schedules the earlysuspend work on an internal workqueue and the write call returns back to powerd. 4. The kernel starts processing the earlysuspend work. 5. Before the kernel earlysuspend work is complete, powerd receives another button press. 6. powerd looks to see whether it's safe to turn on the screen. At this point earlysuspend hasn't completed to the point where it's signaling that the framebuffer is asleep, so powerd determines that it is safe to turn on the display. 7. Unity tries to turn on the display, but the display device is in some partially or fully suspended state so something goes wrong. 8. Early suspend finishes and the fb state is updated, making powerd aware that the framebuffer is asleep. 8. Somewhere in this time frame powerd will also writes on to /sys/power/state to disable autosuspend. The kernel queues late resume work, but if early suspend has started then it must complete before late reusme runs and brings the framebuffer back to the awake state. I'm not sure yet what the solution is. We can't simply synchronize the display state on wait_for_fb_* because it's at least theoretically possible to write mem then on to /sys/power/state quickly enough that early suspend never runs, and also because turning off the display doesn't necessarily imply enabling early suspend. One possible solution would be to make powerd's main thread block until the wait_for_fb_* status changes after writing to /sys/power/state for the earlysuspend implementation, but that would need to be done carefully to ensure that it wouldn't block indefinitely if something went wrong. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
Forgive my silly question, but: Why can't we just be more fault-tolerant and avoid the offending throw from Mir? Log a warning at most, but don't intentionally crash on it. Would that result in an interaction with powerd rendering the system unusable? Or would it be sufficient to allow some recovery/retries? ** Changed in: mir Milestone: None = 0.1.3 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
** Changed in: mir Milestone: 0.1.3 = 0.1.4 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
** Also affects: powerd Importance: Undecided Status: New ** Changed in: powerd Status: New = In Progress ** Changed in: powerd Assignee: (unassigned) = Kevin DuBois (kdub) ** Changed in: mir (Ubuntu) Status: Triaged = Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
I've been able to avert the problem on mako by patching powerd. Currently cooking up a patch to propose to powerd that works in the generic case. The root of the problem was that devices with early suspend were turning mir on and off when they did not guarantee the framebuffer was in a usable state. The fix takes the form of ensuring thread safety around the display state in the different threads in powerd's src/display.c when mir was turned on before the FB was available, (or when mir was turned off after the FB had been made unavailable) mir would fail with an error. my comment in #9 about mir/unity-mir being robustified against double on calls does not need to be done now, as fixing the locking also prevented ever being able to send 'double on' calls from being sent -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
this problem would only affect devices that use 'earlysuspend'. Other devices do not have a second thread messing with the display state tracking, only earlysuspend devices would spawn the thread that was causing problems. ** Changed in: mir Milestone: 0.1.3 = None -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
** Branch linked: lp:~kdub/powerd/fix-1258655 ** Changed in: mir Status: In Progress = Invalid ** Changed in: powerd Importance: Undecided = Critical -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
regardless of whether we throw or not on unblank, the problem at the root of this bug is that mir and powerd are not synced up about the power state of the system (clocks, suspend, fb available, etc). This problem sometimes manifests in failure in the blank/unblank request, sometimes a hang waiting for frame posting, and sometimes failure in hwc's set() function. If i hold powerd-cli active (this should prevent suspending, but not affect anything with the display requests), I can power button on/off rapidly all day. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
i've identified some problems in powerd that cause double requests to be called. currently working to eliminate those in that code base. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
mir needs to be robustified against the double on and double off calls. Even when I account for this though, the system will still run into problems. I still have reason to suspect that when the dbus message to unity mir to turn the display on is received, the system is still in the suspend state. Still trying to verify that when the display on message is sent, the system is guaranteed to be in the 'active' state before the message is sent. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
** Changed in: mir (Ubuntu) Status: In Progress = Triaged ** Changed in: mir (Ubuntu) Importance: Undecided = Critical -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
There is only one possible exception thrown from the offending
mga::HWCCommonDevice::mode()
if (err)
{
std::string blanking_status_msg = Could not +
((mode_request == mir_power_mode_off) ? std::string(blank) :
std::string(unblank)) + display;
BOOST_THROW_EXCEPTION(
boost::enable_error_info(
std::runtime_error(blanking_status_msg))
boost::errinfo_errno(-err));
}
Safe to say whatever the cause, failure to power off the screen should
not be treated as a fatal exception. Perhaps powering on should, but
even then we need to avoid the potential spurious errors of the screen
is already on.
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Title:
Abort when blanking/unblanking screen; exception thrown from
mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
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[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
Gerry collected this helpful dbus log http://pastebin.ubuntu.com/6567567/ (also attached) that shows we get an on, on message from dbus. the error shown: terminate called after throwing an instance of 'boost::exception_detail::clone_implboost::exception_detail::error_info_injectorstd::runtime_error ' what(): could not activate surface with eglMakeCurrent will happen if mc::Compositor::start() is called twice in succession. Still trying to figure out if the on, on message from dbus is something we should handle, or if something is getting confused somehow. ** Attachment added: dbus-log.txt https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1258655/+attachment/3928868/+files/dbus-log.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
I also did a mir-only test to make sure mir can perform a display on/off in quick succession in a loop (which it can), as well as on/display some frames/off in a loop (which it also can). So it doesn't look like the drivers are breaking on us, just something between mir/unity- mir/unity8/powerd is getting mixed up -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
** Changed in: mir Importance: High = Critical -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
From mir's perspective, i see start, stop, start, stop, ..., start, start being called on the compositor. The double start, start causes an error in the compositor. (specifically, an egl context is current in two threads, causing an error BAD_ACCESS in the second thread). powerd-cli listen just reports the on/off/on/off pattern when the double start happens from mir's perspective. Currently digging a bit into unity-mir to see what's going on up there. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen
** Tags removed: regression -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen To manage notifications about this bug go to: https://bugs.launchpad.net/unity8/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen
** Changed in: mir (Ubuntu) Status: Confirmed = In Progress -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen To manage notifications about this bug go to: https://bugs.launchpad.net/unity8/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode)
** Summary changed: - Abort when blanking/unblanking screen + Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) ** Project changed: unity8 = mir ** Changed in: mir Assignee: (unassigned) = Kevin DuBois (kdub) ** Changed in: mir Status: Triaged = In Progress ** Changed in: unity8 (Ubuntu) Status: Confirmed = Invalid ** Changed in: mir Milestone: None = 0.1.3 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen; exception thrown from mir::graphics::android::HWCCommonDevice::mode(MirPowerMode) To manage notifications about this bug go to: https://bugs.launchpad.net/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen
Not a regression but something happened with latest Unity8 that made it way easier to be reproduced. Just used latest image for a few minutes and was able to reproduce the crash a few times already. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen To manage notifications about this bug go to: https://bugs.launchpad.net/unity8/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen
** Changed in: mir (Ubuntu) Assignee: (unassigned) = Kevin DuBois (kdub) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen To manage notifications about this bug go to: https://bugs.launchpad.net/unity8/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen
This is not a regression, I've reported this in October (bug #1238287), it just got lost in the slew of other raise() bugs, which LP unfortunately marks duplicate over-eagerly - and then I've mistakenly marked it Incomplete... ** Summary changed: - [regression] Abort when blanking/unblanking screen + Abort when blanking/unblanking screen -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen To manage notifications about this bug go to: https://bugs.launchpad.net/unity8/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen
** Attachment added: Crash file. https://bugs.launchpad.net/ubuntu/+source/unity8/+bug/1258655/+attachment/3924517/+files/_usr_bin_unity8.32011.crash -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mir/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen
** Changed in: unity8 (Ubuntu) Status: New = Confirmed ** Also affects: unity8 Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen To manage notifications about this bug go to: https://bugs.launchpad.net/unity8/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen
Status changed to 'Confirmed' because the bug affects multiple users. ** Changed in: mir (Ubuntu) Status: New = Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen To manage notifications about this bug go to: https://bugs.launchpad.net/unity8/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen
** Changed in: unity8 Status: New = Triaged ** Changed in: unity8 Importance: Undecided = High -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen To manage notifications about this bug go to: https://bugs.launchpad.net/unity8/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen
This happens on #51 on mako. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: Abort when blanking/unblanking screen To manage notifications about this bug go to: https://bugs.launchpad.net/unity8/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1258655] Re: Abort when blanking/unblanking screen
** Tags added: regression ** Tags added: r51 ** Summary changed: - Abort when blanking/unblanking screen + [regression] Abort when blanking/unblanking screen -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1258655 Title: [regression] Abort when blanking/unblanking screen To manage notifications about this bug go to: https://bugs.launchpad.net/unity8/+bug/1258655/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
