Hello:
This series was applied to qcom/linux.git (refs/heads/for-next):
On Mon, 28 Dec 2020 23:31:30 +0200 you wrote:
> The crash was caused by locking an uninitialized lock during init of
> drm_gem_object. The lock changed in the breaking commit, but the init
> was not moved accordingly.
>
> 8<--- cut here ---
> Unable to handle kernel NULL pointer dereference at virtual address 00000000
> pgd = (ptrval)
> [00000000] *pgd=00000000
> Internal error: Oops: 5 [#1] PREEMPT SMP ARM
> Modules linked in: msm(+) qcom_spmi_vadc qcom_vadc_common dm_mod usb_f_rndis rmi_i2c rmi_core qnoc_msm8974 icc_smd_rpm pm8941_pwrkey
> CPU: 2 PID: 1020 Comm: udevd Not tainted 5.10.0-postmarketos-qcom-msm8974 #8
> Hardware name: Generic DT based system
> PC is at ww_mutex_lock+0x20/0xb0
> LR is at _msm_gem_new+0x13c/0x298 [msm]
> pc : [<c0be31e8>] lr : [<bf0b3404>] psr: 20000013
> sp : c36e7ad0 ip : c3b3d800 fp : 00000000
> r10: 00000001 r9 : c3b22800 r8 : 00000000
> r7 : c3b23000 r6 : c3b3d600 r5 : c3b3d600 r4 : 00000000
> r3 : c34b4780 r2 : c3b3d6f4 r1 : 00000000 r0 : 00000000
> Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment none
> Control: 10c5787d Table: 03ae406a DAC: 00000051
> Process udevd (pid: 1020, stack limit = 0x(ptrval))
> Stack: (0xc36e7ad0 to 0xc36e8000)
> [...]
> [<c0be31e8>] (ww_mutex_lock) from [<bf0b3404>] (_msm_gem_new+0x13c/0x298 [msm])
> [<bf0b3404>] (_msm_gem_new [msm]) from [<bf0b3aa8>] (_msm_gem_kernel_new+0x20/0x190 [msm])
> [<bf0b3aa8>] (_msm_gem_kernel_new [msm]) from [<bf0b4a30>] (msm_gem_kernel_new+0x24/0x2c [msm])
> [<bf0b4a30>] (msm_gem_kernel_new [msm]) from [<bf0b8e2c>] (msm_gpu_init+0x308/0x548 [msm])
> [<bf0b8e2c>] (msm_gpu_init [msm]) from [<bf060a90>] (adreno_gpu_init+0x13c/0x240 [msm])
> [<bf060a90>] (adreno_gpu_init [msm]) from [<bf062b1c>] (a3xx_gpu_init+0x78/0x1dc [msm])
> [<bf062b1c>] (a3xx_gpu_init [msm]) from [<bf05f394>] (adreno_bind+0x1cc/0x274 [msm])
> [<bf05f394>] (adreno_bind [msm]) from [<c087a254>] (component_bind_all+0x11c/0x278)
> [<c087a254>] (component_bind_all) from [<bf0b11d4>] (msm_drm_bind+0x18c/0x5b4 [msm])
> [<bf0b11d4>] (msm_drm_bind [msm]) from [<c0879ea0>] (try_to_bring_up_master+0x200/0x2c8)
> [<c0879ea0>] (try_to_bring_up_master) from [<c087a648>] (component_master_add_with_match+0xc8/0xfc)
> [<c087a648>] (component_master_add_with_match) from [<bf0b0c3c>] (msm_pdev_probe+0x288/0x2c4 [msm])
> [<bf0b0c3c>] (msm_pdev_probe [msm]) from [<c08844cc>] (platform_drv_probe+0x48/0x98)
> [<c08844cc>] (platform_drv_probe) from [<c0881cc4>] (really_probe+0x108/0x528)
> [<c0881cc4>] (really_probe) from [<c0882480>] (driver_probe_device+0x78/0x1d4)
> [<c0882480>] (driver_probe_device) from [<c08828dc>] (device_driver_attach+0xa8/0xb0)
> [<c08828dc>] (device_driver_attach) from [<c0882998>] (__driver_attach+0xb4/0x154)
> [<c0882998>] (__driver_attach) from [<c087fa1c>] (bus_for_each_dev+0x78/0xb8)
> [<c087fa1c>] (bus_for_each_dev) from [<c0880e98>] (bus_add_driver+0x10c/0x208)
> [<c0880e98>] (bus_add_driver) from [<c0883504>] (driver_register+0x88/0x118)
> [<c0883504>] (driver_register) from [<c0302098>] (do_one_initcall+0x50/0x2b0)
> [<c0302098>] (do_one_initcall) from [<c03bace4>] (do_init_module+0x60/0x288)
> [<c03bace4>] (do_init_module) from [<c03bdf1c>] (sys_finit_module+0xd4/0x120)
> [<c03bdf1c>] (sys_finit_module) from [<c0300060>] (ret_fast_syscall+0x0/0x54)
> Exception stack(0xc36e7fa8 to 0xc36e7ff0)
> 7fa0: 00020000 00000000 00000007 b6edd5b0 00000000 b6f2ff20
> 7fc0: 00020000 00000000 0000017b 0000017b b6eef980 bedc3a54 00473c99 00000000
> 7fe0: b6edd5b0 bedc3918 b6ed8a5f b6f6a8b0
> Code: e3c3303f e593300c e1a04000 f590f000 (e1940f9f)
>
> [...]
Here is the summary with links:
- [1/2] drm/msm: Fix null dereference in _msm_gem_new
https://git.kernel.org/qcom/c/a694ffed8765
- [2/2] drm/msm: Ensure get_pages is called when locked
https://git.kernel.org/qcom/c/07fcad0d726d
You are awesome, thank you!
--
Deet-doot-dot, I am a bot.
https://korg.docs.kernel.org/patchwork/pwbot.html
