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3cbdc8d8b7f39a7af3ea7b8dfa75caaebfda4e56
linux/drivers/gpu/drm
History
Akhil P Oommen 3cbdc8d8b7 drm/msm: Fix a null pointer access in msm_gem_shrinker_count() 
Adding an msm_gem_object object to the inactive_list before completing
its initialization is a bad idea because shrinker may pick it up from the
inactive_list. Fix this by making sure that the initialization is complete
before moving the msm_obj object to the inactive list.

This patch fixes the below error:
[10027.553044] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000068
[10027.573305] Mem abort info:
[10027.590160]   ESR = 0x96000006
[10027.597905]   EC = 0x25: DABT (current EL), IL = 32 bits
[10027.614430]   SET = 0, FnV = 0
[10027.624427]   EA = 0, S1PTW = 0
[10027.632722] Data abort info:
[10027.638039]   ISV = 0, ISS = 0x00000006
[10027.647459]   CM = 0, WnR = 0
[10027.654345] user pgtable: 4k pages, 39-bit VAs, pgdp=00000001e3a6a000
[10027.672681] [0000000000000068] pgd=0000000198c31003, pud=0000000198c31003, pmd=0000000000000000
[10027.693900] Internal error: Oops: 96000006 [#1] PREEMPT SMP
[10027.738261] CPU: 3 PID: 214 Comm: kswapd0 Tainted: G S                5.4.40 #1
[10027.745766] Hardware name: Qualcomm Technologies, Inc. SC7180 IDP (DT)
[10027.752472] pstate: 80c00009 (Nzcv daif +PAN +UAO)
[10027.757409] pc : mutex_is_locked+0x14/0x2c
[10027.761626] lr : msm_gem_shrinker_count+0x70/0xec
[10027.766454] sp : ffffffc011323ad0
[10027.769867] x29: ffffffc011323ad0 x28: ffffffe677e4b878
[10027.775324] x27: 0000000000000cc0 x26: 0000000000000000
[10027.780783] x25: ffffff817114a708 x24: 0000000000000008
[10027.786242] x23: ffffff8023ab7170 x22: 0000000000000001
[10027.791701] x21: ffffff817114a080 x20: 0000000000000119
[10027.797160] x19: 0000000000000068 x18: 00000000000003bc
[10027.802621] x17: 0000000004a34210 x16: 00000000000000c0
[10027.808083] x15: 0000000000000000 x14: 0000000000000000
[10027.813542] x13: ffffffe677e0a3c0 x12: 0000000000000000
[10027.819000] x11: 0000000000000000 x10: ffffff8174b94340
[10027.824461] x9 : 0000000000000000 x8 : 0000000000000000
[10027.829919] x7 : 00000000000001fc x6 : ffffffc011323c88
[10027.835373] x5 : 0000000000000001 x4 : ffffffc011323d80
[10027.840832] x3 : ffffffff0477b348 x2 : 0000000000000000
[10027.846290] x1 : ffffffc011323b68 x0 : 0000000000000068
[10027.851748] Call trace:
[10027.854264]  mutex_is_locked+0x14/0x2c
[10027.858121]  msm_gem_shrinker_count+0x70/0xec
[10027.862603]  shrink_slab+0xc0/0x4b4
[10027.866187]  shrink_node+0x4a8/0x818
[10027.869860]  kswapd+0x624/0x890
[10027.873097]  kthread+0x11c/0x12c
[10027.876424]  ret_from_fork+0x10/0x18
[10027.880102] Code: f9000bf3 910003fd aa0003f3 d503201f (f9400268)
[10027.886362] ---[ end trace df5849a1a3543251 ]---
[10027.891518] Kernel panic - not syncing: Fatal exception

Signed-off-by: Akhil P Oommen <akhilpo@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
2020-07-31 06:46:15 -07:00
..
amd
drm/ttm: make ttm_tt unbind function return void.
2020-07-29 09:43:06 +10:00
arc
drm/arc: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS
2020-06-10 09:02:03 +02:00
arm
drm/atomic-helper: reset vblank on crtc reset
2020-07-02 20:25:51 +02:00
armada
Merge tag 'drm-misc-next-2020-06-19' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2020-06-24 15:45:51 +10:00
aspeed
Merge v5.8-rc6 into drm-next
2020-07-24 08:48:05 +10:00
ast
drm/ast: Use managed MM initialization
2020-07-20 09:16:23 +02:00
atmel-hlcdc
drm/atomic-helper: reset vblank on crtc reset
2020-07-02 20:25:51 +02:00
bochs
drm/bochs: use drm_gem_vram_offset to get bo offset v2
2020-06-25 11:59:43 +02:00
bridge
drm/bridge: sil_sii8620: initialize return of sii8620_readb
2020-07-13 17:57:17 +02:00
etnaviv
Merge branch 'etnaviv/next' of https://git.pengutronix.de/git/lst/linux into drm-next
2020-07-23 15:28:10 +10:00
exynos
Merge v5.8-rc6 into drm-next
2020-07-24 08:48:05 +10:00
fsl-dcu
drm/fsl-dcu: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS
2020-06-10 09:02:52 +02:00
gma500
drm/gma500: Stop using mode->private_flags
2020-05-27 14:31:42 +03:00
hisilicon
Merge v5.8-rc6 into drm-next
2020-07-24 08:48:05 +10:00
i2c
drm: bridge: Pass drm_display_info to drm_bridge_funcs .mode_valid()
2020-06-23 19:53:27 +02:00
i810
drm/i810: switch from 'pci_' to 'dma_' API
2020-07-20 09:34:24 +02:00
i915
Merge v5.8-rc6 into drm-next
2020-07-24 08:48:05 +10:00
imx
Merge tag 'imx-drm-next-2020-07-20' of git://git.pengutronix.de/pza/linux into drm-next
2020-07-23 15:21:45 +10:00
ingenic
drm/ingenic: Silence uninitialized-variable warning
2020-07-19 13:03:15 +02:00
lib
…
lima
drm/lima: Expose job_hang_limit module parameter
2020-07-13 13:47:41 +08:00
mcde
Merge v5.8-rc6 into drm-next
2020-07-24 08:48:05 +10:00
mediatek
Merge tag 'mediatek-drm-next-5.9' of https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-next
2020-07-24 09:41:57 +10:00
meson
Merge v5.8-rc6 into drm-next
2020-07-24 08:48:05 +10:00
mga
…
mgag200
drm/mgag200: Inline mga_crtc_{prepare, commit}() into enable function
2020-07-14 09:14:06 +02:00
msm
drm/msm: Fix a null pointer access in msm_gem_shrinker_count()
2020-07-31 06:46:15 -07:00
mxsfb
drm/mxsfb: drop unused function parameter
2020-07-20 10:59:10 +02:00
nouveau
drm/ttm/nouveau: don't call tt destroy callback on alloc failure.
2020-07-29 10:06:38 +10:00
omapdrm
drm/atomic-helper: reset vblank on crtc reset
2020-07-02 20:25:51 +02:00
panel
Merge v5.8-rc6 into drm-next
2020-07-24 08:48:05 +10:00
panfrost
drm/panfrost: Use kvfree() to free bo->sgts
2020-06-19 11:00:02 +01:00
pl111
drm: pl111: Absorb the external register header
2020-06-30 00:32:59 +02:00
qxl
drm/ttm: make ttm_tt unbind function return void.
2020-07-29 09:43:06 +10:00
r128
drm: delete drm_pci.h
2020-04-03 17:11:41 +02:00
radeon
drm/ttm: make ttm_tt unbind function return void.
2020-07-29 09:43:06 +10:00
rcar-du
Merge v5.8-rc6 into drm-next
2020-07-24 08:48:05 +10:00
rockchip
drm: bridge: dw-hdmi: Pass drm_display_info to dw_hdmi_support_scdc()
2020-06-23 19:57:06 +02:00
savage
…
scheduler
Backmerge remote-tracking branch 'drm/drm-next' into drm-misc-next
2020-06-29 12:16:26 +02:00
selftests
drm/mm/selftests: fix wrong return type casting
2020-06-23 15:57:30 +02:00
shmobile
drm/shmobile: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS
2020-06-10 09:05:18 +02:00
sis
…
sti
drm/sti: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS
2020-06-10 09:05:45 +02:00
stm
drm/stm: repair runtime power management
2020-07-08 11:47:01 +02:00
sun4i
Merge v5.8-rc6 into drm-next
2020-07-24 08:48:05 +10:00
tdfx
…
tegra
Merge tag 'drm/tegra/for-5.9-rc1' of ssh://git.freedesktop.org/git/tegra/linux into drm-next
2020-07-24 09:38:55 +10:00
tidss
drm/tidss: Replace HTTP links with HTTPS ones
2020-07-16 22:13:52 +02:00
tilcdc
drm/tilcdc: Use standard drm_atomic_helper_commit
2020-07-14 10:32:33 +02:00
tiny
drm/mipi-dbi: Remove ->enabled
2020-06-24 09:17:34 +02:00
ttm
drm/ttm/nouveau: don't call tt destroy callback on alloc failure.
2020-07-29 10:06:38 +10:00
tve200
drm/tve200: Set GEM CMA functions with DRM_GEM_CMA_DRIVER_OPS
2020-06-10 09:06:11 +02:00
udl
drm/udl: Use GEM vmap/mmap function from SHMEM helpers
2020-06-10 10:17:21 +02:00
v3d
drm/v3d: remove _unlocked suffix in drm_gem_object_put_unlocked
2020-05-19 22:31:35 +01:00
vboxvideo
drm/vboxvideo: Replace HTTP links with HTTPS ones
2020-07-16 22:12:50 +02:00
vc4
drm/vc4: crtc: Remove the feed_txp tests
2020-07-07 10:51:58 +02:00
vgem
drm/vgem: Replace opencoded version of drm_gem_dumb_map_offset()
2020-07-08 22:00:21 +01:00
via
…
virtio
drm/virtio: Remove open-coded commit-tail function
2020-07-14 10:47:16 +02:00
vkms
drm/vkms: change the max cursor width/height
2020-07-12 18:09:13 -04:00
vmwgfx
drm/ttm: ttm_bo_swapout_all doesn't use it's argument.
2020-07-29 10:01:23 +10:00
xen
drm/xen: remove _unlocked suffix in drm_gem_object_put_unlocked
2020-05-19 22:31:36 +01:00
xlnx
drm: xlnx: DRM/KMS driver for Xilinx ZynqMP DisplayPort Subsystem
2020-07-18 02:59:16 +03:00
zte
drm/zte: remove unneeded semicolon
2020-06-29 09:39:04 +02:00
drm_agpsupport.c
…
drm_atomic_helper.c
drm: bridge: Pass drm_display_info to drm_bridge_funcs .mode_valid()
2020-06-23 19:53:27 +02:00
drm_atomic_state_helper.c
drm/atomic-helper: reset vblank on crtc reset
2020-07-02 20:25:51 +02:00
drm_atomic_uapi.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_atomic.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_auth.c
drm/auth: make drm_{set,drop}master_ioctl symmetrical
2020-06-15 14:49:50 +01:00
drm_blend.c
drm: plane: Verify that no or all planes have a zpos property
2020-05-14 02:10:52 +03:00
drm_bridge_connector.c
drm: Add helper to create a connector for a chain of bridges
2020-02-26 13:31:41 +02:00
drm_bridge.c
drm: bridge: Pass drm_display_info to drm_bridge_funcs .mode_valid()
2020-06-23 19:53:27 +02:00
drm_bufs.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_cache.c
…
drm_client_modeset.c
drm: Nuke mode->vrefresh
2020-05-27 14:31:42 +03:00
drm_client.c
drm/client: Add drm_client_framebuffer_flush()
2020-05-26 13:31:01 +02:00
drm_color_mgmt.c
…
drm_connector.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_context.c
drm: context: Clean up documentation
2020-03-16 09:23:55 +01:00
drm_crtc_helper_internal.h
…
drm_crtc_helper.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_crtc_internal.h
drm: convert .debugfs_init() hook to return void.
2020-03-18 17:53:28 +01:00
drm_crtc.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_damage_helper.c
…
drm_debugfs_crc.c
…
drm_debugfs.c
drm/debug: Expose connector VRR monitor range via debugfs
2020-06-25 15:47:14 -07:00
drm_dma.c
drm: delete drm_pci.h
2020-04-03 17:11:41 +02:00
drm_dp_aux_dev.c
…
drm_dp_cec.c
…
drm_dp_dual_mode_helper.c
…
drm_dp_helper.c
drm/dp: Include the AUX CH name in the debug messages
2020-07-09 21:20:33 +03:00
drm_dp_mst_topology_internal.h
…
drm_dp_mst_topology.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_drv.c
drm: Add devm_drm_dev_alloc macro
2020-04-28 15:05:19 +02:00
drm_dsc.c
…
drm_dumb_buffers.c
…
drm_edid_load.c
…
drm_edid.c
drm: core: Convert device logging to drm_* functions.
2020-07-20 09:34:24 +02:00
drm_encoder_slave.c
drm: encoder_slave: use new I2C API
2020-06-19 09:20:21 +02:00
drm_encoder.c
…
drm_fb_cma_helper.c
drm: Fix misspellings of "Analog Devices"
2020-04-21 08:15:03 +02:00
drm_fb_helper.c
Merge v5.8-rc6 into drm-next
2020-07-24 08:48:05 +10:00
drm_file.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_flip_work.c
…
drm_format_helper.c
drm/format-helper: Add drm_fb_swab()
2020-05-26 13:33:08 +02:00
drm_fourcc.c
drm: drm_fourcc: add NV15, Q410, Q401 YUV formats
2020-06-19 13:33:40 +01:00
drm_framebuffer.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_gem_cma_helper.c
drm: core: Convert device logging to drm_* functions.
2020-07-20 09:34:24 +02:00
drm_gem_framebuffer_helper.c
drm: remove _unlocked suffix in drm_gem_object_put_unlocked
2020-05-19 22:31:31 +01:00
drm_gem_shmem_helper.c
drm/shmem-helper: Only dma-buf imports are private obj
2020-06-16 19:11:51 +02:00
drm_gem_ttm_helper.c
drm: remove _unlocked suffix in drm_gem_object_put_unlocked
2020-05-19 22:31:31 +01:00
drm_gem_vram_helper.c
drm: remove optional dummy function from drivers using TTM
2020-07-21 16:03:28 +02:00
drm_gem.c
drm: Remove struct drm_driver.gem_print_info
2020-06-10 09:06:30 +02:00
drm_hashtab.c
…
drm_hdcp.c
drm: Fix HDCP failures when SRM fw is missing
2020-05-05 14:01:53 -04:00
drm_internal.h
drm/vblank: Add vblank works
2020-07-16 18:16:31 -04:00
drm_ioc32.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_ioctl.c
Merge tag 'drm-misc-next-2020-06-19' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2020-06-24 15:45:51 +10:00
drm_irq.c
drm: use drm_dev_has_vblank more
2020-05-29 12:58:11 +02:00
drm_kms_helper_common.c
…
drm_lease.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_legacy_misc.c
…
drm_legacy.h
…
drm_lock.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_managed.c
drm: Include internal header for managed function declarations
2020-05-18 16:27:54 +01:00
drm_memory.c
…
drm_mipi_dbi.c
drm: core: Convert device logging to drm_* functions.
2020-07-20 09:34:24 +02:00
drm_mipi_dsi.c
drm: mipi-dsi: Convert logging to drm_* functions.
2020-07-10 20:21:45 +02:00
drm_mm.c
drm/mm: cleanup and improve next_hole_*_addr()
2020-06-23 15:46:40 +02:00
drm_mode_config.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_mode_object.c
drm: Replace drm_modeset_lock/unlock_all with DRM_MODESET_LOCK_ALL_* helpers
2020-05-05 10:51:56 +02:00
drm_modes.c
drm: Replace HTTP links with HTTPS ones
2020-07-20 11:47:28 +02:00
drm_modeset_helper.c
…
drm_modeset_lock.c
…
drm_of.c
drm/of: Make drm_of_find_panel_or_bridge() to check graph's presence
2020-07-01 10:49:25 +02:00
drm_panel_orientation_quirks.c
drm: panel-orientation-quirks: Use generic orientation-data for Acer S1003
2020-06-23 12:32:06 +02:00
drm_panel.c
…
drm_pci.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_plane_helper.c
…
drm_plane.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_prime.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_print.c
…
drm_probe_helper.c
drm: Introduce epoch counter to drm_connector
2020-06-30 13:31:27 +02:00
drm_property.c
…
drm_rect.c
…
drm_scatter.c
gpu/drm: remove the powerpc hack in drm_legacy_sg_alloc
2020-06-02 10:59:11 -07:00
drm_scdc_helper.c
…
drm_self_refresh_helper.c
…
drm_simple_kms_helper.c
drm/simple-kms: Fix documentation for drm_simple_encoder_init()
2020-03-06 09:24:29 +01:00
drm_syncobj.c
drm : Insert blank lines after declarations.
2020-07-02 15:26:00 +02:00
drm_sysfs.c
drm/connector: notify userspace on hotplug after register complete
2020-06-03 10:24:23 +02:00
drm_trace_points.c
…
drm_trace.h
…
drm_vblank_work.c
drm/vblank: Add vblank works
2020-07-16 18:16:31 -04:00
drm_vblank.c
drm/vblank: Use spin_(un)lock_irq() in drm_crtc_queue_sequence_ioctl()
2020-07-21 11:08:35 -04:00
drm_vm.c
Merge tag 'drm-misc-next-2020-06-19' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
2020-06-24 15:45:51 +10:00
drm_vma_manager.c
…
drm_writeback.c
drm/writeback: don't set fence->ops to default
2020-05-20 20:03:45 +02:00
Kconfig
drm: xlnx: DRM/KMS driver for Xilinx ZynqMP DisplayPort Subsystem
2020-07-18 02:59:16 +03:00
Makefile
Merge tag 'drm-xilinx-dpsub-20200718' of git://linuxtv.org/pinchartl/media into drm-next
2020-07-23 15:31:38 +10:00