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d78e77628e
commit 7f98ca454ad373fc1b76be804fa7138ff68c1d27 upstream. We apparantly get a hotplug irq before we've initialised modesetting, [drm] Loading R100 Microcode BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<c125f56f>] __mutex_lock_slowpath+0x23/0x91 *pde = 00000000 Oops: 0002 [#1] Modules linked in: radeon(+) drm_kms_helper ttm drm i2c_algo_bit backlight pcspkr psmouse evdev sr_mod input_leds led_class cdrom sg parport_pc parport floppy intel_agp intel_gtt lpc_ich acpi_cpufreq processor button mfd_core agpgart uhci_hcd ehci_hcd rng_core snd_intel8x0 snd_ac97_codec ac97_bus snd_pcm usbcore usb_common i2c_i801 i2c_core snd_timer snd soundcore thermal_sys CPU: 0 PID: 15 Comm: kworker/0:1 Not tainted 4.2.0-rc7-00015-gbf67402 #111 Hardware name: MicroLink /D850MV , BIOS MV85010A.86A.0067.P24.0304081124 04/08/2003 Workqueue: events radeon_hotplug_work_func [radeon] task: f6ca5900 ti: f6d3e000 task.ti: f6d3e000 EIP: 0060:[<c125f56f>] EFLAGS: 00010282 CPU: 0 EIP is at __mutex_lock_slowpath+0x23/0x91 EAX: 00000000 EBX: f5e900fc ECX: 00000000 EDX: fffffffe ESI: f6ca5900 EDI: f5e90100 EBP: f5e90000 ESP: f6d3ff0c DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 CR0: 8005003b CR2: 00000000 CR3: 36f61000 CR4: 000006d0 Stack: f5e90100 00000000 c103c4c1 f6d2a5a0 f5e900fc f6df394c c125f162 f8b0faca f6d2a5a0 c138ca00 f6df394c f7395600 c1034741 00d40000 00000000 f6d2a5a0 c138ca00 f6d2a5b8 c138ca10 c1034b58 00000001 f6d40000 f6ca5900 f6d0c940 Call Trace: [<c103c4c1>] ? dequeue_task_fair+0xa4/0xb7 [<c125f162>] ? mutex_lock+0x9/0xa [<f8b0faca>] ? radeon_hotplug_work_func+0x17/0x57 [radeon] [<c1034741>] ? process_one_work+0xfc/0x194 [<c1034b58>] ? worker_thread+0x18d/0x218 [<c10349cb>] ? rescuer_thread+0x1d5/0x1d5 [<c103742a>] ? kthread+0x7b/0x80 [<c12601c0>] ? ret_from_kernel_thread+0x20/0x30 [<c10373af>] ? init_completion+0x18/0x18 Code: 42 08 e8 8e a6 dd ff c3 57 56 53 83 ec 0c 8b 35 48 f7 37 c1 8b 10 4a 74 1a 89 c3 8d 78 04 8b 40 08 89 63 Reported-and-Tested-by: Meelis Roos <mroos@linux.ee> Signed-off-by: Dave Airlie <airlied@redhat.com> Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Zefan Li <lizefan@huawei.com> |
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| .. | ||
| reg_srcs | ||
| .gitignore | ||
| atom-bits.h | ||
| atom-names.h | ||
| atom-types.h | ||
| atom.c | ||
| atom.h | ||
| atombios.h | ||
| atombios_crtc.c | ||
| atombios_dp.c | ||
| atombios_encoders.c | ||
| atombios_i2c.c | ||
| avivod.h | ||
| cayman_blit_shaders.c | ||
| cayman_blit_shaders.h | ||
| evergreen.c | ||
| evergreen_blit_kms.c | ||
| evergreen_blit_shaders.c | ||
| evergreen_blit_shaders.h | ||
| evergreen_cs.c | ||
| evergreen_reg.h | ||
| evergreend.h | ||
| Kconfig | ||
| Makefile | ||
| mkregtable.c | ||
| ni.c | ||
| ni_reg.h | ||
| nid.h | ||
| ObjectID.h | ||
| r100.c | ||
| r100_track.h | ||
| r100d.h | ||
| r200.c | ||
| r300.c | ||
| r300_cmdbuf.c | ||
| r300_reg.h | ||
| r300d.h | ||
| r420.c | ||
| r420d.h | ||
| r500_reg.h | ||
| r520.c | ||
| r520d.h | ||
| r600.c | ||
| r600_audio.c | ||
| r600_blit.c | ||
| r600_blit_kms.c | ||
| r600_blit_shaders.c | ||
| r600_blit_shaders.h | ||
| r600_cp.c | ||
| r600_cs.c | ||
| r600_hdmi.c | ||
| r600_reg.h | ||
| r600d.h | ||
| radeon.h | ||
| radeon_acpi.c | ||
| radeon_agp.c | ||
| radeon_asic.c | ||
| radeon_asic.h | ||
| radeon_atombios.c | ||
| radeon_atpx_handler.c | ||
| radeon_benchmark.c | ||
| radeon_bios.c | ||
| radeon_blit_common.h | ||
| radeon_clocks.c | ||
| radeon_combios.c | ||
| radeon_connectors.c | ||
| radeon_cp.c | ||
| radeon_cs.c | ||
| radeon_cursor.c | ||
| radeon_device.c | ||
| radeon_display.c | ||
| radeon_drv.c | ||
| radeon_drv.h | ||
| radeon_encoders.c | ||
| radeon_family.h | ||
| radeon_fb.c | ||
| radeon_fence.c | ||
| radeon_gart.c | ||
| radeon_gem.c | ||
| radeon_i2c.c | ||
| radeon_ioc32.c | ||
| radeon_irq.c | ||
| radeon_irq_kms.c | ||
| radeon_kms.c | ||
| radeon_legacy_crtc.c | ||
| radeon_legacy_encoders.c | ||
| radeon_legacy_tv.c | ||
| radeon_mem.c | ||
| radeon_mode.h | ||
| radeon_object.c | ||
| radeon_object.h | ||
| radeon_pm.c | ||
| radeon_reg.h | ||
| radeon_ring.c | ||
| radeon_sa.c | ||
| radeon_semaphore.c | ||
| radeon_state.c | ||
| radeon_test.c | ||
| radeon_trace.h | ||
| radeon_trace_points.c | ||
| radeon_ttm.c | ||
| rs100d.h | ||
| rs400.c | ||
| rs400d.h | ||
| rs600.c | ||
| rs600d.h | ||
| rs690.c | ||
| rs690d.h | ||
| rv200d.h | ||
| rv250d.h | ||
| rv350d.h | ||
| rv515.c | ||
| rv515d.h | ||
| rv770.c | ||
| rv770d.h | ||
| si.c | ||
| si_blit_shaders.c | ||
| si_blit_shaders.h | ||
| si_reg.h | ||
| sid.h | ||