100s tina 3.5.1 跑fbtft spi接口屏，LVGL 做长跑测试出现报错

wyljkl LV 7

[96359.536592] INFO: task kworker/0:1:9 blocked for more than 120 seconds.
[96359.544009] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[96359.552774] kworker/0:1     D c0358d3c     0     9      2 0x00000000
[96359.559933] Workqueue: events fb_deferred_io_work
[96359.565154] Backtrace: 
[96359.567978] [<c0358aac>] (__schedule+0x0/0x360) from [<c0358e94>] (schedule+0x88/0x8c)
[96359.576835] [<c0358e0c>] (schedule+0x0/0x8c) from [<c0357b78>] (schedule_timeout+0x20/0x130)
[96359.586224] [<c0357b58>] (schedule_timeout+0x0/0x130) from [<c0359118>] (wait_for_common+0xe0/0x16c)
[96359.596395]  r9:00000000 r8:00000000 r7:00000002 r6:c0c5a000 r5:c0c5bd34
r4:7fffffff
[96359.605215] [<c0359038>] (wait_for_common+0x0/0x16c) from [<c03591bc>] (wait_for_completion+0x18/0x1c)
[96359.615583]  r9:c1800000 r8:c0c5bd34 r7:00000000 r6:c0d800f8 r5:00000000
r4:c0c5bd9c
[96359.624384] [<c03591a4>] (wait_for_completion+0x0/0x1c) from [<c020fa2c>] (spi_sync+0x74/0x8c)
[96359.634012] [<c020f9b8>] (spi_sync+0x0/0x8c) from [<c0194550>] (fbtft_write_spi+0xec/0xfc)
[96359.643219]  r8:00002000 r7:c2820000 r6:c1800000 r5:c0c5bd9c r4:c0d2331c
[96359.650771] [<c0194464>] (fbtft_write_spi+0x0/0xfc) from [<c0194404>] (fbtft_write_vmem16_bus8+0x104/0x134)
[96359.661640]  r6:00000000 r5:00002000 r4:c0d2331c
[96359.666855] [<c0194300>] (fbtft_write_vmem16_bus8+0x0/0x134) from [<c0191010>] (fbtft_update_display+0x144/0x304)
[96359.678299] [<c0190ecc>] (fbtft_update_display+0x0/0x304) from [<c0190a48>] (fbtft_deferred_io+0x6c/0x100)
[96359.689066] [<c01909dc>] (fbtft_deferred_io+0x0/0x100) from [<c0190434>] (fb_deferred_io_work+0x48/0xd8)
[96359.699654] [<c01903ec>] (fb_deferred_io_work+0x0/0xd8) from [<c0031d68>] (process_one_work+0x1e8/0x330)
[96359.710205]  r9:c0c5a000 r8:c052b600 r7:00000000 r6:c0485024 r5:c0d232b0
r4:c0c22f00
[96359.719039] [<c0031b80>] (process_one_work+0x0/0x330) from [<c0032c0c>] (worker_thread+0x1cc/0x358)
[96359.729155] [<c0032a40>] (worker_thread+0x0/0x358) from [<c0037da0>] (kthread+0xa8/0xb4)
[96359.738215] [<c0037cf8>] (kthread+0x0/0xb4) from [<c000f930>] (ret_from_fork+0x14/0x24)
[96359.747134]  r7:00000000 r6:00000000 r5:c0037cf8 r4:c0c49e7c
[96359.753468] INFO: task 86t2_f1c200s:192 blocked for more than 120 seconds.
[96359.761132] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[96359.769851] 86t2_f1c200s    D c0358d3c     0   192      1 0x00000000
[96359.776956] Backtrace: 
[96359.779726] [<c0358aac>] (__schedule+0x0/0x360) from [<c0358e94>] (schedule+0x88/0x8c)
[96359.788593] [<c0358e0c>] (schedule+0x0/0x8c) from [<c03592d0>] (schedule_preempt_disabled+0x10/0x14)
[96359.798803] [<c03592c0>] (schedule_preempt_disabled+0x0/0x14) from [<c0358260>] (__mutex_lock_slowpath+0x6c/0xb8)
[96359.810254] [<c03581f4>] (__mutex_lock_slowpath+0x0/0xb8) from [<c03582e8>] (mutex_lock+0x3c/0x40)
[96359.820228]  r8:c04f42c0 r7:c01904c4 r6:c0d93494 r5:c0d23000 r4:c0d93494
[96359.827764] [<c03582ac>] (mutex_lock+0x0/0x40) from [<c01904f0>] (fb_deferred_io_mkwrite+0x2c/0xf8)
[96359.837847]  r5:c0d23000 r4:c0d93490
[96359.841853] [<c01904c4>] (fb_deferred_io_mkwrite+0x0/0xf8) from [<c0081368>] (handle_pte_fault+0x774/0xa48)
[96359.852693]  r9:c0f463e8 r8:80d9618f r7:c01904c4 r6:b6afa000 r5:c0e65160
r4:c04f42c0
[96359.861471] [<c0080bf4>] (handle_pte_fault+0x0/0xa48) from [<c00816f0>] (handle_mm_fault+0xb4/0xd8)
[96359.871570] [<c008163c>] (handle_mm_fault+0x0/0xd8) from [<c0016510>] (do_page_fault+0x1d4/0x278)
[96359.881474] [<c001633c>] (do_page_fault+0x0/0x278) from [<c000a1d0>] (do_DataAbort+0x40/0xa4)
[96359.890997] [<c000a190>] (do_DataAbort+0x0/0xa4) from [<c000f660>] (__dabt_usr+0x40/0x60)
[96359.900123] Exception stack(0xc0981fb0 to 0xc0981ff8)
[96359.922359] 1fa0:                                     b6afa17a 00281d5c 00000062 ffbcffbc
[96359.932683] 1fc0: 00000000 00000000 00231928 00000066 000000bd 0000013f b6afa000 00000066
[96359.943117] 1fe0: 00000010 b6bb95c8 00000010 b6f1f12c 60000010 ffffffff
[96359.950646]  r7:00000066 r6:ffffffff r5:60000010 r4:b6f1f12c
[96359.957087] INFO: task kworker/u2:2:8590 blocked for more than 120 seconds.
[96359.964834] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[96359.973574] kworker/u2:2    D c0358d3c     0  8590      2 0x00000000
[96359.980715] Workqueue: spi1 sunxi_spi_work
[96359.985260] Backtrace: 
[96359.988081] [<c0358aac>] (__schedule+0x0/0x360) from [<c0358e94>] (schedule+0x88/0x8c)
[96359.996939] [<c0358e0c>] (schedule+0x0/0x8c) from [<c0357b78>] (schedule_timeout+0x20/0x130)
[96360.006325] [<c0357b58>] (schedule_timeout+0x0/0x130) from [<c0359118>] (wait_for_common+0xe0/0x16c)
[96360.016518]  r9:00000000 r8:00000000 r7:00000002 r6:c0fe6000 r5:c0d807e8
r4:7fffffff
[96360.025279] [<c0359038>] (wait_for_common+0x0/0x16c) from [<c03591bc>] (wait_for_completion+0x18/0x1c)
[96360.035644]  r9:00000000 r8:c0c5bdbc r7:f1c06018 r6:c0c5bd78 r5:c0d80168
r4:f1c06000
[96360.044450] [<c03591a4>] (wait_for_completion+0x0/0x1c) from [<c0212830>] (sunxi_spi_work+0x4b4/0x7fc)
[96360.054850] [<c021237c>] (sunxi_spi_work+0x0/0x7fc) from [<c0031d68>] (process_one_work+0x1e8/0x330)
[96360.065063] [<c0031b80>] (process_one_work+0x0/0x330) from [<c0032c0c>] (worker_thread+0x1cc/0x358)
[96360.075175] [<c0032a40>] (worker_thread+0x0/0x358) from [<c0037da0>] (kthread+0xa8/0xb4)
[96360.084257] [<c0037cf8>] (kthread+0x0/0xb4) from [<c000f930>] (ret_from_fork+0x14/0x24)
[96360.093185]  r7:00000000 r6:00000000 r5:c0037cf8 r4:c0adde7c
[96480.095636] INFO: task kworker/0:1:9 blocked for more than 120 seconds.
[96480.103042] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[96480.111804] kworker/0:1     D c0358d3c     0     9      2 0x00000000
[96480.118951] Workqueue: events fb_deferred_io_work
[96480.124203] Backtrace: 
[96480.127032] [<c0358aac>] (__schedule+0x0/0x360) from [<c0358e94>] (schedule+0x88/0x8c)
[96480.135930] [<c0358e0c>] (schedule+0x0/0x8c) from [<c0357b78>] (schedule_timeout+0x20/0x130)
[96480.145320] [<c0357b58>] (schedule_timeout+0x0/0x130) from [<c0359118>] (wait_for_common+0xe0/0x16c)
[96480.155496]  r9:00000000 r8:00000000 r7:00000002 r6:c0c5a000 r5:c0c5bd34
r4:7fffffff
[96480.164297] [<c0359038>] (wait_for_common+0x0/0x16c) from [<c03591bc>] (wait_for_completion+0x18/0x1c)
[96480.174660]  r9:c1800000 r8:c0c5bd34 r7:00000000 r6:c0d800f8 r5:00000000
r4:c0c5bd9c
[96480.183456] [<c03591a4>] (wait_for_completion+0x0/0x1c) from [<c020fa2c>] (spi_sync+0x74/0x8c)
[96480.193084] [<c020f9b8>] (spi_sync+0x0/0x8c) from [<c0194550>] (fbtft_write_spi+0xec/0xfc)
[96480.202306]  r8:00002000 r7:c2820000 r6:c1800000 r5:c0c5bd9c r4:c0d2331c
[96480.209853] [<c0194464>] (fbtft_write_spi+0x0/0xfc) from [<c0194404>] (fbtft_write_vmem16_bus8+0x104/0x134)
[96480.220687]  r6:00000000 r5:00002000 r4:c0d2331c
[96480.225889] [<c0194300>] (fbtft_write_vmem16_bus8+0x0/0x134) from [<c0191010>] (fbtft_update_display+0x144/0x304)
[96480.237329] [<c0190ecc>] (fbtft_update_display+0x0/0x304) from [<c0190a48>] (fbtft_deferred_io+0x6c/0x100)
[96480.248095] [<c01909dc>] (fbtft_deferred_io+0x0/0x100) from [<c0190434>] (fb_deferred_io_work+0x48/0xd8)
[96480.258685] [<c01903ec>] (fb_deferred_io_work+0x0/0xd8) from [<c0031d68>] (process_one_work+0x1e8/0x330)
[96480.269243]  r9:c0c5a000 r8:c052b600 r7:00000000 r6:c0485024 r5:c0d232b0
r4:c0c22f00
[96480.278030] [<c0031b80>] (process_one_work+0x0/0x330) from [<c0032c0c>] (worker_thread+0x1cc/0x358)
[96480.288137] [<c0032a40>] (worker_thread+0x0/0x358) from [<c0037da0>] (kthread+0xa8/0xb4)
[96480.297195] [<c0037cf8>] (kthread+0x0/0xb4) from [<c000f930>] (ret_from_fork+0x14/0x24)
[96480.306111]  r7:00000000 r6:00000000 r5:c0037cf8 r4:c0c49e7c
[96480.312444] INFO: task 86t2_f1c200s:192 blocked for more than 120 seconds.
[96480.320124] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[96480.328848] 86t2_f1c200s    D c0358d3c     0   192      1 0x00000000
[96480.335940] Backtrace: 
[96480.338710] [<c0358aac>] (__schedule+0x0/0x360) from [<c0358e94>] (schedule+0x88/0x8c)
[96480.347568] [<c0358e0c>] (schedule+0x0/0x8c) from [<c03592d0>] (schedule_preempt_disabled+0x10/0x14)
[96480.357773] [<c03592c0>] (schedule_preempt_disabled+0x0/0x14) from [<c0358260>] (__mutex_lock_slowpath+0x6c/0xb8)
[96480.369225] [<c03581f4>] (__mutex_lock_slowpath+0x0/0xb8) from [<c03582e8>] (mutex_lock+0x3c/0x40)
[96480.379221]  r8:c04f42c0 r7:c01904c4 r6:c0d93494 r5:c0d23000 r4:c0d93494
[96480.386767] [<c03582ac>] (mutex_lock+0x0/0x40) from [<c01904f0>] (fb_deferred_io_mkwrite+0x2c/0xf8)
[96480.396839]  r5:c0d23000 r4:c0d93490
[96480.400844] [<c01904c4>] (fb_deferred_io_mkwrite+0x0/0xf8) from [<c0081368>] (handle_pte_fault+0x774/0xa48)
[96480.411698]  r9:c0f463e8 r8:80d9618f r7:c01904c4 r6:b6afa000 r5:c0e65160
r4:c04f42c0
[96480.420490] [<c0080bf4>] (handle_pte_fault+0x0/0xa48) from [<c00816f0>] (handle_mm_fault+0xb4/0xd8)
[96480.430607] [<c008163c>] (handle_mm_fault+0x0/0xd8) from [<c0016510>] (do_page_fault+0x1d4/0x278)
[96480.440536] [<c001633c>] (do_page_fault+0x0/0x278) from [<c000a1d0>] (do_DataAbort+0x40/0xa4)
[96480.450071] [<c000a190>] (do_DataAbort+0x0/0xa4) from [<c000f660>] (__dabt_usr+0x40/0x60)
[96480.459186] Exception stack(0xc0981fb0 to 0xc0981ff8)
[96480.484248] 1fa0:                                     b6afa17a 00281d5c 00000062 ffbcffbc
[96480.494706] 1fc0: 00000000 00000000 00231928 00000066 000000bd 0000013f b6afa000 00000066
[96480.505143] 1fe0: 00000010 b6bb95c8 00000010 b6f1f12c 60000010 ffffffff
[96480.512684]  r7:00000066 r6:ffffffff r5:60000010 r4:b6f1f12c
[96480.519097] INFO: task kworker/u2:2:8590 blocked for more than 120 seconds.
[96480.526862] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[96480.535614] kworker/u2:2    D c0358d3c     0  8590      2 0x00000000
[96480.542717] Workqueue: spi1 sunxi_spi_work
[96480.547319] Backtrace: 
[96480.550090] [<c0358aac>] (__schedule+0x0/0x360) from [<c0358e94>] (schedule+0x88/0x8c)
[96480.558970] [<c0358e0c>] (schedule+0x0/0x8c) from [<c0357b78>] (schedule_timeout+0x20/0x130)
[96480.568413] [<c0357b58>] (schedule_timeout+0x0/0x130) from [<c0359118>] (wait_for_common+0xe0/0x16c)
[96480.578578]  r9:00000000 r8:00000000 r7:00000002 r6:c0fe6000 r5:c0d807e8
r4:7fffffff
[96480.587373] [<c0359038>] (wait_for_common+0x0/0x16c) from [<c03591bc>] (wait_for_completion+0x18/0x1c)
[96480.597731]  r9:00000000 r8:c0c5bdbc r7:f1c06018 r6:c0c5bd78 r5:c0d80168
r4:f1c06000
[96480.606531] [<c03591a4>] (wait_for_completion+0x0/0x1c) from [<c0212830>] (sunxi_spi_work+0x4b4/0x7fc)
[96480.616961] [<c021237c>] (sunxi_spi_work+0x0/0x7fc) from [<c0031d68>] (process_one_work+0x1e8/0x330)
[96480.627173] [<c0031b80>] (process_one_work+0x0/0x330) from [<c0032c0c>] (worker_thread+0x1cc/0x358)
[96480.637287] [<c0032a40>] (worker_thread+0x0/0x358) from [<c0037da0>] (kthread+0xa8/0xb4)
[96480.646343] [<c0037cf8>] (kthread+0x0/0xb4) from [<c000f930>] (ret_from_fork+0x14/0x24)
[96480.655218]  r7:00000000 r6:00000000 r5:c0037cf8 r4:c0adde7c
[96600.654690] INFO: task kworker/0:1:9 blocked for more than 120 seconds.
[96600.662100] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[96600.670854] kworker/0:1     D c0358d3c     0     9      2 0x00000000
[96600.678020] Workqueue: events fb_deferred_io_work
[96600.683278] Backtrace: 
[96600.686101] [<c0358aac>] (__schedule+0x0/0x360) from [<c0358e94>] (schedule+0x88/0x8c)
[96600.694973] [<c0358e0c>] (schedule+0x0/0x8c) from [<c0357b78>] (schedule_timeout+0x20/0x130)
[96600.704360] [<c0357b58>] (schedule_timeout+0x0/0x130) from [<c0359118>] (wait_for_common+0xe0/0x16c)
[96600.714552]  r9:00000000 r8:00000000 r7:00000002 r6:c0c5a000 r5:c0c5bd34
r4:7fffffff
[96600.723362] [<c0359038>] (wait_for_common+0x0/0x16c) from [<c03591bc>] (wait_for_completion+0x18/0x1c)
[96600.733745]  r9:c1800000 r8:c0c5bd34 r7:00000000 r6:c0d800f8 r5:00000000
r4:c0c5bd9c
[96600.742571] [<c03591a4>] (wait_for_completion+0x0/0x1c) from [<c020fa2c>] (spi_sync+0x74/0x8c)
[96600.752203] [<c020f9b8>] (spi_sync+0x0/0x8c) from [<c0194550>] (fbtft_write_spi+0xec/0xfc)
[96600.761413]  r8:00002000 r7:c2820000 r6:c1800000 r5:c0c5bd9c r4:c0d2331c
[96600.768946] [<c0194464>] (fbtft_write_spi+0x0/0xfc) from [<c0194404>] (fbtft_write_vmem16_bus8+0x104/0x134)
[96600.779782]  r6:00000000 r5:00002000 r4:c0d2331c
[96600.784983] [<c0194300>] (fbtft_write_vmem16_bus8+0x0/0x134) from [<c0191010>] (fbtft_update_display+0x144/0x304)
[96600.796438] [<c0190ecc>] (fbtft_update_display+0x0/0x304) from [<c0190a48>] (fbtft_deferred_io+0x6c/0x100)
[96600.807210] [<c01909dc>] (fbtft_deferred_io+0x0/0x100) from [<c0190434>] (fb_deferred_io_work+0x48/0xd8)
[96600.817787] [<c01903ec>] (fb_deferred_io_work+0x0/0xd8) from [<c0031d68>] (process_one_work+0x1e8/0x330)
[96600.828338]  r9:c0c5a000 r8:c052b600 r7:00000000 r6:c0485024 r5:c0d232b0
r4:c0c22f00
[96600.837120] [<c0031b80>] (process_one_work+0x0/0x330) from [<c0032c0c>] (worker_thread+0x1cc/0x358)
[96600.847227] [<c0032a40>] (worker_thread+0x0/0x358) from [<c0037da0>] (kthread+0xa8/0xb4)
[96600.856299] [<c0037cf8>] (kthread+0x0/0xb4) from [<c000f930>] (ret_from_fork+0x14/0x24)
[96600.865222]  r7:00000000 r6:00000000 r5:c0037cf8 r4:c0c49e7c
[96600.871552] INFO: task 86t2_f1c200s:192 blocked for more than 120 seconds.
[96600.879218] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[96600.887933] 86t2_f1c200s    D c0358d3c     0   192      1 0x00000000
[96600.895028] Backtrace: 
[96600.897799] [<c0358aac>] (__schedule+0x0/0x360) from [<c0358e94>] (schedule+0x88/0x8c)
[96600.906659] [<c0358e0c>] (schedule+0x0/0x8c) from [<c03592d0>] (schedule_preempt_disabled+0x10/0x14)
[96600.916883] [<c03592c0>] (schedule_preempt_disabled+0x0/0x14) from [<c0358260>] (__mutex_lock_slowpath+0x6c/0xb8)
[96600.928340] [<c03581f4>] (__mutex_lock_slowpath+0x0/0xb8) from [<c03582e8>] (mutex_lock+0x3c/0x40)
[96600.938314]  r8:c04f42c0 r7:c01904c4 r6:c0d93494 r5:c0d23000 r4:c0d93494
[96600.945847] [<c03582ac>] (mutex_lock+0x0/0x40) from [<c01904f0>] (fb_deferred_io_mkwrite+0x2c/0xf8)
[96600.955936]  r5:c0d23000 r4:c0d93490
[96600.959944] [<c01904c4>] (fb_deferred_io_mkwrite+0x0/0xf8) from [<c0081368>] (handle_pte_fault+0x774/0xa48)
[96600.970798]  r9:c0f463e8 r8:80d9618f r7:c01904c4 r6:b6afa000 r5:c0e65160
r4:c04f42c0
[96600.979604] [<c0080bf4>] (handle_pte_fault+0x0/0xa48) from [<c00816f0>] (handle_mm_fault+0xb4/0xd8)
[96600.989711] [<c008163c>] (handle_mm_fault+0x0/0xd8) from [<c0016510>] (do_page_fault+0x1d4/0x278)
[96600.999634] [<c001633c>] (do_page_fault+0x0/0x278) from [<c000a1d0>] (do_DataAbort+0x40/0xa4)
[96601.009164] [<c000a190>] (do_DataAbort+0x0/0xa4) from [<c000f660>] (__dabt_usr+0x40/0x60)
[96601.018275] Exception stack(0xc0981fb0 to 0xc0981ff8)
[96601.041527] 1fa0:                                     b6afa17a 00281d5c 00000062 ffbcffbc
[96601.051893] 1fc0: 00000000 00000000 00231928 00000066 000000bd 0000013f b6afa000 00000066
[96601.062222] 1fe0: 00000010 b6bb95c8 00000010 b6f1f12c 60000010 ffffffff
[96601.069752]  r7:00000066 r6:ffffffff r5:60000010 r4:b6f1f12c
[96601.076175] INFO: task kworker/u2:2:8590 blocked for more than 120 seconds.
[96601.083892] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[96601.092631] kworker/u2:2    D c0358d3c     0  8590      2 0x00000000
[96601.099801] Workqueue: spi1 sunxi_spi_work
[96601.104347] Backtrace: 
[96601.107176] [<c0358aac>] (__schedule+0x0/0x360) from [<c0358e94>] (schedule+0x88/0x8c)
[96601.116044] [<c0358e0c>] (schedule+0x0/0x8c) from [<c0357b78>] (schedule_timeout+0x20/0x130)
[96601.125485] [<c0357b58>] (schedule_timeout+0x0/0x130) from [<c0359118>] (wait_for_common+0xe0/0x16c)
[96601.135651]  r9:00000000 r8:00000000 r7:00000002 r6:c0fe6000 r5:c0d807e8
r4:7fffffff
[96601.144409] [<c0359038>] (wait_for_common+0x0/0x16c) from [<c03591bc>] (wait_for_completion+0x18/0x1c)
[96601.154791]  r9:00000000 r8:c0c5bdbc r7:f1c06018 r6:c0c5bd78 r5:c0d80168
r4:f1c06000
[96601.163551] [<c03591a4>] (wait_for_completion+0x0/0x1c) from [<c0212830>] (sunxi_spi_work+0x4b4/0x7fc)
[96601.173951] [<c021237c>] (sunxi_spi_work+0x0/0x7fc) from [<c0031d68>] (process_one_work+0x1e8/0x330)
[96601.184165] [<c0031b80>] (process_one_work+0x0/0x330) from [<c0032c0c>] (worker_thread+0x1cc/0x358)
[96601.194278] [<c0032a40>] (worker_thread+0x0/0x358) from [<c0037da0>] (kthread+0xa8/0xb4)
[96601.203341] [<c0037cf8>] (kthread+0x0/0xb4) from [<c000f930>] (ret_from_fork+0x14/0x24)
[96601.212259]  r7:00000000 r6:00000000 r5:c0037cf8 r4:c0adde7c
[96721.213767] INFO: task kworker/0:1:9 blocked for more than 120 seconds.
[96721.221178] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[96721.229937] kworker/0:1     D c0358d3c     0     9      2 0x00000000
[96721.237106] Workqueue: events fb_deferred_io_work
[96721.242326] Backtrace: 
[96721.245150] [<c0358aac>] (__schedule+0x0/0x360) from [<c0358e94>] (schedule+0x88/0x8c)
[96721.254023] [<c0358e0c>] (schedule+0x0/0x8c) from [<c0357b78>] (schedule_timeout+0x20/0x130)
[96721.263443] [<c0357b58>] (schedule_timeout+0x0/0x130) from [<c0359118>] (wait_for_common+0xe0/0x16c)
[96721.273673]  r9:00000000 r8:00000000 r7:00000002 r6:c0c5a000 r5:c0c5bd34
r4:7fffffff
[96721.282437] [<c0359038>] (wait_for_common+0x0/0x16c) from [<c03591bc>] (wait_for_completion+0x18/0x1c)
[96721.292829]  r9:c1800000 r8:c0c5bd34 r7:00000000 r6:c0d800f8 r5:00000000
r4:c0c5bd9c
[96721.301637] [<c03591a4>] (wait_for_completion+0x0/0x1c) from [<c020fa2c>] (spi_sync+0x74/0x8c)
[96721.311269] [<c020f9b8>] (spi_sync+0x0/0x8c) from [<c0194550>] (fbtft_write_spi+0xec/0xfc)
[96721.320479]  r8:00002000 r7:c2820000 r6:c1800000 r5:c0c5bd9c r4:c0d2331c
[96721.328011] [<c0194464>] (fbtft_write_spi+0x0/0xfc) from [<c0194404>] (fbtft_write_vmem16_bus8+0x104/0x134)
[96721.338845]  r6:00000000 r5:00002000 r4:c0d2331c
[96721.344056] [<c0194300>] (fbtft_write_vmem16_bus8+0x0/0x134) from [<c0191010>] (fbtft_update_display+0x144/0x304)
[96721.355498] [<c0190ecc>] (fbtft_update_display+0x0/0x304) from [<c0190a48>] (fbtft_deferred_io+0x6c/0x100)
[96721.366264] [<c01909dc>] (fbtft_deferred_io+0x0/0x100) from [<c0190434>] (fb_deferred_io_work+0x48/0xd8)
[96721.376838] [<c01903ec>] (fb_deferred_io_work+0x0/0xd8) from [<c0031d68>] (process_one_work+0x1e8/0x330)
[96721.387395]  r9:c0c5a000 r8:c052b600 r7:00000000 r6:c0485024 r5:c0d232b0
r4:c0c22f00
[96721.396181] [<c0031b80>] (process_one_work+0x0/0x330) from [<c0032c0c>] (worker_thread+0x1cc/0x358)
[96721.406300] [<c0032a40>] (worker_thread+0x0/0x358) from [<c0037da0>] (kthread+0xa8/0xb4)
[96721.415364] [<c0037cf8>] (kthread+0x0/0xb4) from [<c000f930>] (ret_from_fork+0x14/0x24)
[96721.424283]  r7:00000000 r6:00000000 r5:c0037cf8 r4:c0c49e7c

大佬们，帮忙瞧瞧，给点指导意见，非常感谢

Jingyan LV 5

@wyljkl 看上去是驱动有问题导致锁有竞争，可以把相应得debug打开看下有没有有效信息