Closed wangjianxin-canaan closed 1 year ago
fix boot probability crash
解决系统启动时低概率crash问题，crash信息类似如下： [ 13.547009] k510-isp 92600000.isp1: k510isp_pipeline_set_stream:state(1) [ 13.554160] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 13.563132] Oops [#1] [ 13.565418] Modules linked in: [ 13.568526] CPU: 1 PID: 166 Comm: v4l2_drm.out Not tainted 4.17.0 #6 [ 13.574928] sepc: 0000000000000000 ra : 0000000000000001 sp : ffffffe009d6d9d0 [ 13.582174] gp : ffffffe000a2c458 tp : ffffffe0099d1280 t0 : 0000000000000000 [ 13.589428] t1 : fffffffffffeffff t2 : 0000000000000000 s0 : ffffffe00a3e6330 [ 13.596677] s1 : ffffffe00a3e2010 a0 : 0000000000000000 a1 : 0000000000000002 [ 13.603908] a2 : ffffffe000a2d7ac a3 : 0000000000000000 a4 : ffffffffffffffff [ 13.611135] a5 : 0000000000000000 a6 : ffffffd0045d0014 a7 : 0000000000000008 [ 13.618362] s2 : ffffffe00a3e0018 s3 : ffffffe00a3c9100 s4 : 0000000000000001 [ 13.625588] s5 : 0000000000000005 s6 : 0000000000000001 s7 : 0000000000000001 [ 13.632816] s8 : ffffffe009d6d9c0 s9 : ffffffe000df6000 s10: 0000000200000022 [ 13.640042] s11: ffffffe00a3e0018 t3 : 0000000000000000 t4 : 0000000000000000 [ 13.647268] t5 : 0000000000000000 t6 : 0000000000000001 [ 13.652584] sstatus: 0000000200000120 sbadaddr: 0000000000000000 scause: 000000000000000c [ 13.660772] CPU: 1 PID: 166 Comm: v4l2_drm.out Not tainted 4.17.0 #6 [ 13.667128] Call Trace: [ 13.669602] [] walk_stackframe+0x0/0xa4 [ 13.675012] [] show_stack+0x2c/0x38 [ 13.680073] [] dump_stack+0x64/0x80 [ 13.685133] [] die+0x70/0xf8 [ 13.689588] [] do_page_fault+0x24c/0x358 [ 13.695083] [] ret_from_exception+0x0/0xc [ 13.700752] ---[ end trace 67e47d6cb31794e8 ]--- [ 13.705394] Kernel panic - not syncing: Fatal exception in interrupt
fix #420
PR描述:
fix boot probability crash
详细描述:
解决系统启动时低概率crash问题，crash信息类似如下： [ 13.547009] k510-isp 92600000.isp1: k510isp_pipeline_set_stream:state(1) [ 13.554160] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000 [ 13.563132] Oops [#1] [ 13.565418] Modules linked in: [ 13.568526] CPU: 1 PID: 166 Comm: v4l2_drm.out Not tainted 4.17.0 #6 [ 13.574928] sepc: 0000000000000000 ra : 0000000000000001 sp : ffffffe009d6d9d0 [ 13.582174] gp : ffffffe000a2c458 tp : ffffffe0099d1280 t0 : 0000000000000000 [ 13.589428] t1 : fffffffffffeffff t2 : 0000000000000000 s0 : ffffffe00a3e6330 [ 13.596677] s1 : ffffffe00a3e2010 a0 : 0000000000000000 a1 : 0000000000000002 [ 13.603908] a2 : ffffffe000a2d7ac a3 : 0000000000000000 a4 : ffffffffffffffff [ 13.611135] a5 : 0000000000000000 a6 : ffffffd0045d0014 a7 : 0000000000000008 [ 13.618362] s2 : ffffffe00a3e0018 s3 : ffffffe00a3c9100 s4 : 0000000000000001 [ 13.625588] s5 : 0000000000000005 s6 : 0000000000000001 s7 : 0000000000000001 [ 13.632816] s8 : ffffffe009d6d9c0 s9 : ffffffe000df6000 s10: 0000000200000022 [ 13.640042] s11: ffffffe00a3e0018 t3 : 0000000000000000 t4 : 0000000000000000 [ 13.647268] t5 : 0000000000000000 t6 : 0000000000000001 [ 13.652584] sstatus: 0000000200000120 sbadaddr: 0000000000000000 scause: 000000000000000c [ 13.660772] CPU: 1 PID: 166 Comm: v4l2_drm.out Not tainted 4.17.0 #6 [ 13.667128] Call Trace: [ 13.669602] [] walk_stackframe+0x0/0xa4
[ 13.675012] [] show_stack+0x2c/0x38
[ 13.680073] [] dump_stack+0x64/0x80
[ 13.685133] [] die+0x70/0xf8
[ 13.689588] [] do_page_fault+0x24c/0x358
[ 13.695083] [] ret_from_exception+0x0/0xc
[ 13.700752] ---[ end trace 67e47d6cb31794e8 ]---
[ 13.705394] Kernel panic - not syncing: Fatal exception in interrupt
关联issue:
fix #420