[Bug 117111] New: Quitting X with xrandr rotation enabled freezes vt

[Bug 117111] New: Quitting X with xrandr rotation enabled freezes vt

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=117111

            Bug ID: 117111
           Summary: Quitting X with xrandr rotation enabled freezes vt
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.4.8
          Hardware: x86-64
                OS: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
          Assignee: drivers_video-dri@kernel-bugs.osdl.org
          Reporter: michal.pecio@gmail.com
        Regression: No

Steps to reproduce:
1. boot without Xorg
2. start Xorg with startx
3. enable display rotation
4. quit Xorg

At this point, the screen shows previous VT contents and some Xorg stderr spam,
but no command prompt. Typing commands doesn't seem to work, CTRL+ALT+DEL too.

The system still runs and accepts ssh connections. dmesg shows nothing.

Switching between X and VTs (CTRL+ALT+Fx) works normally.

The GPU is AMD 880G IGP (HD4250).

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[Bug 117111] Quitting X with xrandr rotation enabled freezes vt

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=117111

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |alexdeucher@gmail.com

--- Comment #1 from Alex Deucher <alexdeucher@gmail.com> ---
Please attach your xorg log and dmesg output.

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[Bug 117111] Quitting X with xrandr rotation enabled freezes vt

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=117111

Michał Pecio <michal.pecio@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #2 from Michał Pecio <michal.pecio@gmail.com> ---
OK, so I checked Xorg log and it's missing the final line indicating clean
shutdown. strace revealed that X is aborting for some reason:

<... futex resumed> )                   = 0
ioctl(12, DRM_IOCTL_GEM_CLOSE, 0x7ffdfee3d4e0) = 0
close(12)                               = 0
close(11)                               = 0
munmap(0x7f1fa4a69000, 13890560)        = 0
munmap(0x7f1fa5bef000, 2126232)         = 0
munmap(0x7f1fa4861000, 2126248)         = 0
munmap(0x7f1fa4649000, 2191808)         = 0
write(2, "Xorg: ../include/privates.h:122:"..., 89) = 89
mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0) =
0x7f1fad47c000
rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0
tgkill(2858, 2858, SIGABRT)             = 0
--- SIGABRT {si_signo=SIGABRT, si_code=SI_TKILL, si_pid=2858, si_uid=1000} ---
+++ killed by SIGABRT +++

So much for a kernel bug, I guess.

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