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Petr Mladek f5475cc43c drm/radeon: kernel panic in drm_calc_vbltimestamp_from_scanoutpos with 3.18.0-rc6

I was unable too boot 3.18.0-rc6 because of the following kernel
panic in drm_calc_vbltimestamp_from_scanoutpos():

    [drm] Initialized drm 1.1.0 20060810
    [drm] radeon kernel modesetting enabled.
    [drm] initializing kernel modesetting (RV100 0x1002:0x515E 0x15D9:0x8080).
    [drm] register mmio base: 0xC8400000
    [drm] register mmio size: 65536
    radeon 0000:0b:01.0: VRAM: 128M 0x00000000D0000000 - 0x00000000D7FFFFFF (16M used)
    radeon 0000:0b:01.0: GTT: 512M 0x00000000B0000000 - 0x00000000CFFFFFFF
    [drm] Detected VRAM RAM=128M, BAR=128M
    [drm] RAM width 16bits DDR
    [TTM] Zone  kernel: Available graphics memory: 3829346 kiB
    [TTM] Zone   dma32: Available graphics memory: 2097152 kiB
    [TTM] Initializing pool allocator
    [TTM] Initializing DMA pool allocator
    [drm] radeon: 16M of VRAM memory ready
    [drm] radeon: 512M of GTT memory ready.
    [drm] GART: num cpu pages 131072, num gpu pages 131072
    [drm] PCI GART of 512M enabled (table at 0x0000000037880000).
    radeon 0000:0b:01.0: WB disabled
    radeon 0000:0b:01.0: fence driver on ring 0 use gpu addr 0x00000000b0000000 and cpu addr 0xffff8800bbbfa000
    [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
    [drm] Driver supports precise vblank timestamp query.
    [drm] radeon: irq initialized.
    [drm] Loading R100 Microcode
    radeon 0000:0b:01.0: Direct firmware load for radeon/R100_cp.bin failed with error -2
    radeon_cp: Failed to load firmware "radeon/R100_cp.bin"
    [drm:r100_cp_init] *ERROR* Failed to load firmware!
    radeon 0000:0b:01.0: failed initializing CP (-2).
    radeon 0000:0b:01.0: Disabling GPU acceleration
    [drm] radeon: cp finalized
    BUG: unable to handle kernel NULL pointer dereference at 000000000000025c
    IP: [<ffffffff8150423b>] drm_calc_vbltimestamp_from_scanoutpos+0x4b/0x320
    PGD 0
    Oops: 0000 [#1] SMP
    Modules linked in:
    CPU: 1 PID: 1 Comm: swapper/0 Not tainted 3.18.0-rc6-4-default #2649
    Hardware name: Supermicro X7DB8/X7DB8, BIOS 6.00 07/26/2006
    task: ffff880234da2010 ti: ffff880234da4000 task.ti: ffff880234da4000
    RIP: 0010:[<ffffffff8150423b>]  [<ffffffff8150423b>] drm_calc_vbltimestamp_from_scanoutpos+0x4b/0x320
    RSP: 0000:ffff880234da7918  EFLAGS: 00010086
    RAX: ffffffff81557890 RBX: 0000000000000000 RCX: ffff880234da7a48
    RDX: ffff880234da79f4 RSI: 0000000000000000 RDI: ffff880232e15000
    RBP: ffff880234da79b8 R08: 0000000000000000 R09: 0000000000000000
    R10: 000000000000000a R11: 0000000000000001 R12: ffff880232dda1c0
    R13: ffff880232e1518c R14: 0000000000000292 R15: ffff880232e15000
    FS:  0000000000000000(0000) GS:ffff88023fc40000(0000) knlGS:0000000000000000
    CS:  0010 DS: 0000 ES: 0000 CR0: 000000008005003b
    CR2: 000000000000025c CR3: 0000000002014000 CR4: 00000000000007e0
    Stack:
     ffff880234da79d8 0000000000000286 ffff880232dcbc00 0000000000002480
     ffff880234da7958 0000000000000296 ffff880234da7998 ffffffff8151b51d
     ffff880234da7a48 0000000032dcbeb0 ffff880232dcbc00 ffff880232dcbc58
    Call Trace:
     [<ffffffff8151b51d>] ? drm_vma_offset_remove+0x1d/0x110
     [<ffffffff8152dc98>] radeon_get_vblank_timestamp_kms+0x38/0x60
     [<ffffffff8152076a>] ? ttm_bo_release_list+0xba/0x180
     [<ffffffff81503751>] drm_get_last_vbltimestamp+0x41/0x70
     [<ffffffff81503933>] vblank_disable_and_save+0x73/0x1d0
     [<ffffffff81106b2f>] ? try_to_del_timer_sync+0x4f/0x70
     [<ffffffff81505245>] drm_vblank_cleanup+0x65/0xa0
     [<ffffffff815604fa>] radeon_irq_kms_fini+0x1a/0x70
     [<ffffffff8156c07e>] r100_init+0x26e/0x410
     [<ffffffff8152ae3e>] radeon_device_init+0x7ae/0xb50
     [<ffffffff8152d57f>] radeon_driver_load_kms+0x8f/0x210
     [<ffffffff81506965>] drm_dev_register+0xb5/0x110
     [<ffffffff8150998f>] drm_get_pci_dev+0x8f/0x200
     [<ffffffff815291cd>] radeon_pci_probe+0xad/0xe0
     [<ffffffff8141a365>] local_pci_probe+0x45/0xa0
     [<ffffffff8141b741>] pci_device_probe+0xd1/0x130
     [<ffffffff81633dad>] driver_probe_device+0x12d/0x3e0
     [<ffffffff8163413b>] __driver_attach+0x9b/0xa0
     [<ffffffff816340a0>] ? __device_attach+0x40/0x40
     [<ffffffff81631cd3>] bus_for_each_dev+0x63/0xa0
     [<ffffffff8163378e>] driver_attach+0x1e/0x20
     [<ffffffff81633390>] bus_add_driver+0x180/0x240
     [<ffffffff81634914>] driver_register+0x64/0xf0
     [<ffffffff81419cac>] __pci_register_driver+0x4c/0x50
     [<ffffffff81509bf5>] drm_pci_init+0xf5/0x120
     [<ffffffff821dc871>] ? ttm_init+0x6a/0x6a
     [<ffffffff821dc908>] radeon_init+0x97/0xb5
     [<ffffffff810002fc>] do_one_initcall+0xbc/0x1f0
     [<ffffffff810e3278>] ? __wake_up+0x48/0x60
     [<ffffffff8218e256>] kernel_init_freeable+0x18a/0x215
     [<ffffffff8218d983>] ? initcall_blacklist+0xc0/0xc0
     [<ffffffff818a78f0>] ? rest_init+0x80/0x80
     [<ffffffff818a78fe>] kernel_init+0xe/0xf0
     [<ffffffff818c0c3c>] ret_from_fork+0x7c/0xb0
     [<ffffffff818a78f0>] ? rest_init+0x80/0x80
    Code: 45 ac 0f 88 a8 01 00 00 3b b7 d0 01 00 00 49 89 ff 0f 83 99 01 00 00 48 8b 47 20 48 8b 80 88 00 00 00 48 85 c0 0f 84 cd 01 00 00 <41> 8b b1 5c 02 00 00 41 8b 89 58 02 00 00 89 75 98 41 8b b1 60
    RIP  [<ffffffff8150423b>] drm_calc_vbltimestamp_from_scanoutpos+0x4b/0x320
     RSP <ffff880234da7918>
    CR2: 000000000000025c
    ---[ end trace ad2c0aadf48e2032 ]---
    Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000009

It has helped me to add a NULL pointer check that was suggested at
http://lists.freedesktop.org/archives/dri-devel/2014-October/070663.html

I am not familiar with the code. But the change looks sane
and we need something fast at this stage of 3.18 development.

Suggested-by: Helge Deller <deller@gmx.de>
Signed-off-by: Petr Mladek <pmladek@suse.cz>
Tested-by: Petr Mladek <pmladek@suse.cz>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

2014-12-02 15:45:33 -05:00

armada

Merge branch 'drm-armada-fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm into drm-fixes

2014-10-28 10:03:34 +10:00

ast

drm/ast: Fix HW cursor image

2014-10-08 09:05:29 +10:00

bochs

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2014-10-14 09:39:08 +02:00

bridge

drm: add register and unregister functions for connectors

2014-06-19 08:55:28 +02:00

cirrus

drm/cirrus: bind also to qemu-xen-traditional

2014-10-23 14:09:04 +10:00

exynos

drm/exynos: fix possible infinite loop issue

2014-11-10 14:40:10 +09:00

gma500

drm/gma500: use container_of to resolve psb_fbdev from drm_fb_helper

2014-09-24 12:09:27 +02:00

i2c

drm/tda998x: update for new drm connector APIs.

2014-08-05 10:34:33 +10:00

i810

drm: move drm_mmap to <drm/drm_legacy.h>

2014-09-24 11:43:07 +10:00

i915

drm/i915: Cancel vdd off work before suspend

2014-11-26 14:27:46 +02:00

mga

drm: move drm_mmap to <drm/drm_legacy.h>

2014-09-24 11:43:07 +10:00

mgag200

Merge branch 'for-airlied-next' of git://people.freedesktop.org/~mlankhorst/linux into drm-next

2014-10-01 19:27:38 +10:00

msm

drm: Pass dma-buf as argument to gem_prime_import_sg_table

2014-09-30 14:04:00 +02:00

nouveau

nouveau: move the hotplug ignore to correct place.

2014-12-02 16:27:25 +10:00

omapdrm

drm: Extract <drm/drm_gem.h>

2014-09-24 11:43:41 +10:00

panel

drm/panel/simple: add optronics B101XTN01.0 (v3)

2014-09-10 11:19:07 -04:00

qxl

qxl: don't create too large primary surface

2014-10-22 11:11:50 +10:00

r128

drm: move drm_mmap to <drm/drm_legacy.h>

2014-09-24 11:43:07 +10:00

radeon

drm/radeon: kernel panic in drm_calc_vbltimestamp_from_scanoutpos with 3.18.0-rc6

2014-12-02 15:45:33 -05:00

rcar-du

drm/rcar-du: Add OF support

2014-09-15 11:55:47 +03:00

savage

drm: move drm_mmap to <drm/drm_legacy.h>

2014-09-24 11:43:07 +10:00

shmobile

drm/shmob: Update copyright notice

2014-09-15 11:34:07 +03:00

sis

drm: move drm_mmap to <drm/drm_legacy.h>

2014-09-24 11:43:07 +10:00

sti

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2014-10-14 09:39:08 +02:00

tdfx

drm: move drm_mmap to <drm/drm_legacy.h>

2014-09-24 11:43:07 +10:00

tegra

drm/tegra: dc: Add missing call to drm_vblank_on()

2014-11-13 14:07:50 +01:00

tilcdc

drm/tilcdc: panel: Add support for enable GPIO

2014-09-17 10:55:27 +10:00

ttm

drm/ttm: Don't evict BOs outside of the requested placement range

2014-10-16 18:34:08 -04:00

udl

drm/udl: use container_of to resolve udl_fbdev from drm_fb_helper

2014-09-24 12:09:28 +02:00

via

drm: move drm_mmap to <drm/drm_legacy.h>

2014-09-24 11:43:07 +10:00

vmwgfx

drm/vmwgfx: Filter out modes those cannot be supported by the current VRAM size.

2014-10-31 09:58:06 +01:00

ati_pcigart.c

drm: split ati_pcigart.h out of drmP.h

2014-09-12 14:11:14 +10:00

drm_agpsupport.c

drm: move AGP definitions harder

2014-09-10 17:40:11 +10:00

drm_auth.c

drm: Move piles of functions from drmP.h to drm_internal.h

2014-09-12 11:16:29 +02:00

drm_bufs.c

drm: Move __drm_pci_free to drm_legacy.h

2014-09-12 11:08:56 +02:00

drm_cache.c

…

drm_context.c

drm: mark drm_context support as legacy

2014-08-05 19:38:12 +02:00

drm_crtc_helper.c

drm/crtc-helper: use drm_framebuffer flags

2014-07-08 11:18:47 +10:00

drm_crtc_internal.h

…

drm_crtc.c

drm: Drop grab fpriv->fbs_lock in drm_fb_release

2014-09-25 17:13:40 +02:00

drm_debugfs.c

drm: Move piles of functions from drmP.h to drm_internal.h

2014-09-12 11:16:29 +02:00

drm_dma.c

drm: Move legacy buffer structures to <drm/drm_legacy.h>

2014-09-12 15:28:12 +02:00

drm_dp_helper.c

…

drm_dp_mst_topology.c

drm/mst: rework payload table allocation to conform better.

2014-10-13 14:40:53 +10:00

drm_drv.c

drm/core: use helper to check driver features

2014-10-03 10:38:56 +02:00

drm_edid_load.c

…

drm_edid.c

drm/edid: Add missing interlaced flag to 576i@100 modes.

2014-10-01 11:36:20 +02:00

drm_encoder_slave.c

…

drm_fb_cma_helper.c

drm: Introduce drm_fb_helper_prepare()

2014-07-08 11:31:28 +10:00

drm_fb_helper.c

Merge tag 'drm-intel-next-2014-09-01' of git://anongit.freedesktop.org/drm-intel into drm-next

2014-09-03 08:30:48 +10:00

drm_flip_work.c

…

drm_fops.c

drm/core: use helper to check driver features

2014-10-03 10:38:56 +02:00

drm_gem_cma_helper.c

drm: Pass dma-buf as argument to gem_prime_import_sg_table

2014-09-30 14:04:00 +02:00

drm_gem.c

drm/core: use helper to check driver features

2014-10-03 10:38:56 +02:00

drm_global.c

…

drm_hashtab.c

list: fix order of arguments for hlist_add_after(_rcu)

2014-08-06 18:01:24 -07:00

drm_info.c

drm: Extract <drm/drm_gem.h>

2014-09-24 11:43:41 +10:00

drm_internal.h

drm: Move internal debugfs functions to drm_internal.h

2014-09-24 11:43:35 +10:00

drm_ioc32.c

…

drm_ioctl.c

drm: Purge ioctl forward declarations from drmP.h

2014-09-12 15:27:47 +02:00

drm_irq.c

drm: Improve debug output for drm_wait_one_vblank

2014-09-24 12:09:23 +02:00

drm_legacy.h

drm: Create drm legacy driver header

2014-09-12 11:08:55 +02:00

drm_lock.c

drm: unexport drm_global_mutex

2014-09-12 11:19:47 +02:00

drm_memory.c

drm: Move drm_memory.c map support declarations to <drm/drm_legacy.h>

2014-09-12 15:28:12 +02:00

drm_mipi_dsi.c

drm/mipi-dsi: consider low power transmission

2014-09-20 00:56:08 +09:00

drm_mm.c

…

drm_modes.c

drm: Perform cmdline mode parsing during connector initialisation

2014-08-06 14:50:12 +02:00

drm_modeset_lock.c

Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

2014-10-14 09:39:08 +02:00

drm_of.c

drm: add of_graph endpoint helper to find possible CRTCs

2014-07-11 15:38:28 +01:00

drm_panel.c

…

drm_pci.c

drm: Move legacy buffer structures to <drm/drm_legacy.h>

2014-09-12 15:28:12 +02:00

drm_plane_helper.c

drm/plane-helper: Use proper plane init function

2014-07-18 15:39:28 +02:00

drm_platform.c

drm: Goody bye, drm_bus!

2014-09-10 17:43:10 +10:00

drm_prime.c

drm: Pass dma-buf as argument to gem_prime_import_sg_table

2014-09-30 14:04:00 +02:00

drm_probe_helper.c

drm: Perform cmdline mode parsing during connector initialisation

2014-08-06 14:50:12 +02:00

drm_rect.c

drm: Add drm_rect rotation functions

2014-07-11 23:44:12 +02:00

drm_scatter.c

drm: Move sg functions into drm_legacy.h

2014-09-12 11:08:54 +02:00

drm_sysfs.c

drm: Move piles of functions from drmP.h to drm_internal.h

2014-09-12 11:16:29 +02:00

drm_trace_points.c

…

drm_trace.h

…

drm_vm.c

drm: Move drm_vm_open_locked into drm_internal.h

2014-09-24 11:43:20 +10:00

drm_vma_manager.c

…

Kconfig

drm: merge drm_usb into udl

2014-09-10 17:43:27 +10:00

Makefile

drm: merge drm_usb into udl

2014-09-10 17:43:27 +10:00

README.drm

…

README.drm

************************************************************
* For the very latest on DRI development, please see:      *
*     http://dri.freedesktop.org/                          *
************************************************************

The Direct Rendering Manager (drm) is a device-independent kernel-level
device driver that provides support for the XFree86 Direct Rendering
Infrastructure (DRI).

The DRM supports the Direct Rendering Infrastructure (DRI) in four major
ways:

    1. The DRM provides synchronized access to the graphics hardware via
       the use of an optimized two-tiered lock.

    2. The DRM enforces the DRI security policy for access to the graphics
       hardware by only allowing authenticated X11 clients access to
       restricted regions of memory.

    3. The DRM provides a generic DMA engine, complete with multiple
       queues and the ability to detect the need for an OpenGL context
       switch.

    4. The DRM is extensible via the use of small device-specific modules
       that rely extensively on the API exported by the DRM module.


Documentation on the DRI is available from:
    http://dri.freedesktop.org/wiki/Documentation
    http://sourceforge.net/project/showfiles.php?group_id=387
    http://dri.sourceforge.net/doc/

For specific information about kernel-level support, see:

    The Direct Rendering Manager, Kernel Support for the Direct Rendering
    Infrastructure
    http://dri.sourceforge.net/doc/drm_low_level.html

    Hardware Locking for the Direct Rendering Infrastructure
    http://dri.sourceforge.net/doc/hardware_locking_low_level.html

    A Security Analysis of the Direct Rendering Infrastructure
    http://dri.sourceforge.net/doc/security_low_level.html