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From: bugzilla-daemon@bugzilla.kernel.org
To: dri-devel@lists.freedesktop.org
Subject: [Bug 193341] New: AMDGPU: kernel NULL pointer dereferenced with hybrid graphics
Date: Fri, 27 Jan 2017 07:38:16 +0000	[thread overview]
Message-ID: <bug-193341-2300@https.bugzilla.kernel.org/> (raw)

https://bugzilla.kernel.org/show_bug.cgi?id=193341

            Bug ID: 193341
           Summary: AMDGPU: kernel NULL pointer dereferenced with hybrid
                    graphics
           Product: Drivers
           Version: 2.5
    Kernel Version: 4.9.6
          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: stefan.kohek@um.si
        Regression: No

Created attachment 253261
  --> https://bugzilla.kernel.org/attachment.cgi?id=253261&action=edit
Kernel config, output of dmesh (with stack trace), output of lspci

The driver crashes when AMDGPU is used with a combination of R5 M230 and
MULLINS.

The driver work with MULLINS OK, when discrete GPU (01:00.0  R5 M230) is
disabled (in bios).

Kernel: Linux LenovoPC 4.9.6-1-ARCH #1 SMP PREEMPT Thu Jan 26 09:22:26 CET 2017
x86_64 GNU/Linux

Relevant config:
CONFIG_DRM_AMDGPU=m
CONFIG_DRM_AMDGPU_SI=y
CONFIG_DRM_AMDGPU_CIK=y
CONFIG_DRM_AMDGPU_USERPTR=y

I understand this is experimental case. Anyway, maybe somebody will fix it.  

This case work OK with RADEON driver (even offloading).

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             reply	other threads:[~2017-01-27  7:38 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-01-27  7:38 bugzilla-daemon [this message]
2017-01-27  8:55 ` [Bug 193341] AMDGPU: kernel NULL pointer dereferenced with hybrid graphics bugzilla-daemon
2017-01-27  8:56 ` bugzilla-daemon
2017-01-27 15:34 ` bugzilla-daemon
2017-02-10 22:34 ` bugzilla-daemon
2017-02-10 23:14 ` bugzilla-daemon
2017-02-16  6:43 ` bugzilla-daemon
2017-02-28 16:47 ` bugzilla-daemon
2017-02-28 17:02 ` bugzilla-daemon
2017-03-01  9:56 ` bugzilla-daemon

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