i.MX ProcessorsのトピックRe: imx6q Android4.4.2 reboot https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669477#M103041 <HTML><HEAD></HEAD><BODY><P>among other reasons may be power supplies, please check its requirements in</P><P>i.MX6 System Development User’s Guide</P><P><A href="https://community.nxp.com/external-link.jspa?url=http%3A%2F%2Fcache.freescale.com%2Ffiles%2F32bit%2Fdoc%2Fuser_guide%2FIMX6DQ6SDLHDG.pdf" rel="nofollow" target="_blank">http://cache.freescale.com/files/32bit/doc/user_guide/IMX6DQ6SDLHDG.pdf</A></P><P></P><P>Best regards<BR />igor</P></BODY></HTML> Tue, 18 Jul 2017 06:27:45 GMT igorpadykov 2017-07-18T06:27:45Z imx6q Android4.4.2 reboot https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669474#M103038 <HTML><HEAD></HEAD><BODY><P>hello,</P><P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; my board is designed accroding sabre sd board, on which run Android_kk4.4.2 （kernel 3.0.35）.I come cross a problem that the board usually reboot (first ,the desktop is stopping ,can't do anything&nbsp; then it reboot)when&nbsp;I operrate&nbsp;on android desktop&nbsp;only&nbsp;one to three minutes.&nbsp;before it reboot ,the log print :</P><DIV><BR />[&nbsp;&nbsp; 71.742086] Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP<BR />[&nbsp;&nbsp; 71.749510] Modules linked in: rtk_btusb [last unloaded: 8723bu]<BR />[&nbsp;&nbsp; 71.755794] CPU: 0&nbsp;&nbsp;&nbsp; Tainted: G&nbsp;&nbsp;&nbsp; B&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (3.0.35 #231)<BR />[&nbsp;&nbsp; 71.761393] PC is at 0xc80e1640<BR />[&nbsp;&nbsp; 71.764593] LR is at 0xc80e1640<BR />[&nbsp;&nbsp; 71.767795] pc : [&lt;c80e1640&gt;]&nbsp;&nbsp;&nbsp; lr : [&lt;c80e1640&gt;]&nbsp;&nbsp;&nbsp; psr: 200f0193<BR />[&nbsp;&nbsp; 71.767800] sp : c093bf48&nbsp; ip : d61f360c&nbsp; fp : 00000000<BR />[&nbsp;&nbsp; 71.779458] r10: 00000000&nbsp; r9 : c093a000&nbsp; r8 : 00000000<BR />[&nbsp;&nbsp; 71.784796] r7 : 00000044&nbsp; r6 : c093a000&nbsp; r5 : c0054dc4&nbsp; r4 : c09507d0<BR />[&nbsp;&nbsp; 71.791437] r3 : 00000002&nbsp; r2 : 00010002&nbsp; r1 : 00000044&nbsp; r0 : c093e34c<BR />[&nbsp;&nbsp; 71.798027] Flags: nzCv&nbsp; IRQs off&nbsp; FIQs on&nbsp; Mode SVC_32&nbsp; ISA ARM&nbsp; Segment kernel<BR />[&nbsp;&nbsp; 71.805537] Control: 10c53c7d&nbsp; Table: 2219804a&nbsp; DAC: 00000015<BR />[&nbsp;&nbsp; 71.811344] <BR />[&nbsp;&nbsp; 71.811346] PC: 0xc80e15c0:<BR />[&nbsp;&nbsp; 71.815795] 15c0&nbsp; d7cfffef 7a6ff8fa fdfe7f63 bfbfde9f fafff67e f9cf1ebf ffb7f973 af6f7ffb<BR />[&nbsp;&nbsp; 71.824675] 15e0&nbsp; 33775bb8 7cbcfbfd dbcd7fb9 7ffa4db6 aeff6bbb 5f76ef64 fbbffd7f 7df6b3fe<BR />[&nbsp;&nbsp; 71.833607] 1600&nbsp; e2cffd3f edfdffdb f6befaef affdebf9 effffd8f ed7dffef f7fdfeba bffdd9ff<BR />[&nbsp;&nbsp; 71.842536] 1620&nbsp; ecddf5f9 dffe7ff7 efffad6f ffae6777 dbbeb3f2 ddbefffd ffcfe7df 6deffeff<BR />[&nbsp;&nbsp; 71.851463] 1640&nbsp; ff7f1ac9 d89fd717 5dff4eb9 e7fafdf7 fb766bcb 20ffffb7 6beb3abb fbc3fefb<BR />[&nbsp;&nbsp; 71.860339] 1660&nbsp; f5feaacf 6ff7fffb f7ffabdf 7fdd7fff affef26b fedf7977 f7ff7f4a cbf77fdf<BR />[&nbsp;&nbsp; 71.869218] 1680&nbsp; df7fe7f7 fb76fd74 fcee2c53 dadefbff 768f4f7d b8def9fc fffeaedf a267cfb7<BR />[&nbsp;&nbsp; 71.878144] 16a0&nbsp; eefe73ff ad5fef77 fdfdf5ef 9d5f5bf6 7ef638ea 8aff7ffa 7fbf71bf bff57fde<BR />[&nbsp;&nbsp; 71.887020] <BR />[&nbsp;&nbsp; 71.887022] LR: 0xc80e15c0:<BR />[&nbsp;&nbsp; 71.891470] 15c0&nbsp; d7cfffef 7a6ff8fa fdfe7f63 bfbfde9f fafff67e f9cf1ebf ffb7f973 af6f7ffb<BR />[&nbsp;&nbsp; 71.900404] 15e0&nbsp; 33775bb8 7cbcfbfd dbcd7fb9 7ffa4db6 aeff6bbb 5f76ef64 fbbffd7f 7df6b3fe<BR />[&nbsp;&nbsp; 71.909280] 1600&nbsp; e2cffd3f edfdffdb f6befaef affdebf9 effffd8f ed7dffef f7fdfeba bffdd9ff<BR />[&nbsp;&nbsp; 71.918154] 1620&nbsp; ecddf5f9 dffe7ff7 efffad6f ffae6777 dbbeb3f2 ddbefffd ffcfe7df 6deffeff<BR />[&nbsp;&nbsp; 71.927083] 1640&nbsp; ff7f1ac9 d89fd717 5dff4eb9 e7fafdf7 fb766bcb 20ffffb7 6beb3abb fbc3fefb<BR />[&nbsp;&nbsp; 71.935959] 1660&nbsp; f5feaacf 6ff7fffb f7ffabdf 7fdd7fff affef26b fedf7977 f7ff7f4a cbf77fdf<BR />[&nbsp;&nbsp; 71.944887] 1680&nbsp; df7fe7f7 fb76fd74 fcee2c53 dadefbff 768f4f7d b8def9fc fffeaedf a267cfb7<BR />[&nbsp;&nbsp; 71.953817] 16a0&nbsp; eefe73ff ad5fef77 fdfdf5ef 9d5f5bf6 7ef638ea 8aff7ffa 7fbf71bf bff57fde<BR />[&nbsp;&nbsp; 71.962745] <BR />[&nbsp;&nbsp; 71.962747] SP: 0xc093bec8:<BR />[&nbsp;&nbsp; 71.967145] bec8&nbsp; 000000a4 00000044 00000000 c093e34c 00000044 00000001 00000000 c093a000<BR />[&nbsp;&nbsp; 71.976076] bee8&nbsp; c093a000 00010003 00000000 c093a050 00000001 c005c444 c093e34c 00000044<BR />[&nbsp;&nbsp; 71.984948] bf08&nbsp; 00010002 00000002 c09507d0 c0054dc4 c093a000 00000044 00000000 c093a000<BR />[&nbsp;&nbsp; 71.993877] bf28&nbsp; 00000000 00000000 d61f360c c093bf48 c80e1640 c80e1640 200f0193 ffffffff<BR />[&nbsp;&nbsp; 72.002808] bf48&nbsp; 00000270 c005d1b0 ffffffff f2a00100 00000044 00000002 00000001 c005c34c<BR />[&nbsp;&nbsp; 72.011733] bf68&nbsp; c09e4548 800f0093 00000001 00000000 c093a000 c09cffe4 c094fa70 c06bdea4<BR />[&nbsp;&nbsp; 72.020615] bf88&nbsp; c0958084 412fc09a 00000000 00000000 00000000 c093bfb0 c006c284 c005d468<BR />[&nbsp;&nbsp; 72.029541] bfa8&nbsp; 400f0013 ffffffff c005d444 c005d790 c095061c 00000000 c003b2fc c1367180<BR />[&nbsp;&nbsp; 72.038469] <BR />[&nbsp;&nbsp; 72.038471] IP: 0xd61f358c:<BR />[&nbsp;&nbsp; 72.042869] 358c&nbsp; 00000000 00000000 00000000 00000000 2d786d69 00633269 00000000 00000000<BR />[&nbsp;&nbsp; 72.051797] 35ac&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.060722] 35cc&nbsp; 00000000 00000000 00000000 00000000 00000000 00000001 00000000 00000000<BR />[&nbsp;&nbsp; 72.069598] 35ec&nbsp; d61f35ec d61f35ec 00000000 d61f35f8 d61f35f8 d6184e60 c095d2f4 d981e000<BR />[&nbsp;&nbsp; 72.078533] 360c&nbsp; 00000044 00000000 00000000 d61f3618 d61f3618 000000a6 0000000b 00000000<BR />[&nbsp;&nbsp; 72.087468] 362c&nbsp; 00000032 014fb180 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.096403] 364c&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.105279] 366c&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.114209] <BR />[&nbsp;&nbsp; 72.114211] R0: 0xc093e2cc:<BR />[&nbsp;&nbsp; 72.118609] e2cc&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.127543] e2ec&nbsp; 00000000 00000000 d6093a20 00000000 00000000 00000044 00000000 00000000<BR />[&nbsp;&nbsp; 72.136474] e30c&nbsp; c0958b60 00000000 c094fa90 00000000 0000000f 00000000 c0057b64 c00e429c<BR />[&nbsp;&nbsp; 72.145403] e32c&nbsp; d62947e0 00000000 00000000 00000000 00000000 0000058a 00000000 00000000<BR />[&nbsp;&nbsp; 72.154282] e34c&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.163212] e36c&nbsp; c093e36c c093e36c d6093720 00000000 00000000 00000045 00000000 00000000<BR />[&nbsp;&nbsp; 72.172089] e38c&nbsp; c0958b60 00000000 c094fa90 00000000 0000000f 00000000 c0057b68 c00e429c<BR />[&nbsp;&nbsp; 72.180964] e3ac&nbsp; d6294760 00000000 00000000 00000000 00000000 000003d6 00000000 00000000<BR />[&nbsp;&nbsp; 72.189897] <BR />[&nbsp;&nbsp; 72.189899] R4: 0xc0950750:<BR />[&nbsp;&nbsp; 72.194351] 0750&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.203226] 0770&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.212158] 0790&nbsp; 00000064 00008000 0000000f c1389020 00000008 00000004 c1389000 c1381000<BR />[&nbsp;&nbsp; 72.221033] 07b0&nbsp; c136a000 0000002c c1371000 c1379000 00000001 00001000 00000000 00000003<BR />[&nbsp;&nbsp; 72.229909] 07d0&nbsp; 01316000 0131e000 01326000 0132e000 0001a500 00000002 00028ffb 0004ffff<BR />[&nbsp;&nbsp; 72.238843] 07f0&nbsp; 00000001 00000032 0000fffa 00000001 d625dae0 d625da80 00000000 d6018f20<BR />[&nbsp;&nbsp; 72.247775] 0810&nbsp; 0000000f d601d580 d625da20 d6000a20 00000010 c138b120 0000ffff 00000064<BR />[&nbsp;&nbsp; 72.256703] 0830&nbsp; d6000a80 0000000f c13cb120 00007fff d6018f80 00100000 d601b000 0000000f<BR />[&nbsp;&nbsp; 72.265579] <BR />[&nbsp;&nbsp; 72.265581] R5: 0xc0054d44:<BR />[&nbsp;&nbsp; 72.270032] 4d44&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.278907] 4d64&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 0000001c<BR />[&nbsp;&nbsp; 72.287837] 4d84&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 ea020000 00440607<BR />[&nbsp;&nbsp; 72.296764] 4da4&nbsp; 00000000 0000001a 00000000 696c6573 0078756e 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.305692] 4dc4&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.314567] 4de4&nbsp; 626f3a75 7463656a 733a725f 65747379 69665f6d 733a656c 00000030 000081a4<BR />[&nbsp;&nbsp; 72.323493] 4e04&nbsp; 000006b8 5959ea63 5959ea63 5959ea63 00000000 00010000 00000008 00080080<BR />[&nbsp;&nbsp; 72.332422] 4e24&nbsp; 00000000 0001f30a 00000003 00000000 00000000 00000001 0000fc0d 00000000<BR />[&nbsp;&nbsp; 72.341351] <BR />[&nbsp;&nbsp; 72.341353] R6: 0xc0939f80:<BR />[&nbsp;&nbsp; 72.345750] 9f80&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.354675] 9fa0&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.363548] 9fc0&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.372476] 9fe0&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.381404] a000&nbsp; 00000002 00010004 00000000 c0956e80 c096d7b4 00000000 00000015 c0956e80<BR />[&nbsp;&nbsp; 72.390331] a020&nbsp; c136b320 00000000 c093a000 6142b3eb d617d140 c0957120 c093bfb4 c093bf00<BR />[&nbsp;&nbsp; 72.399200] a040&nbsp; c06b8a20 00000000 00000000 00000000 00000000 00000000 00010000 00000000<BR />[&nbsp;&nbsp; 72.408128] a060&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.417057] <BR />[&nbsp;&nbsp; 72.417059] R9: 0xc0939f80:<BR />[&nbsp;&nbsp; 72.421455] 9f80&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.430383] 9fa0&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.439308] 9fc0&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.448181] 9fe0&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.457111] a000&nbsp; 00000002 00010004 00000000 c0956e80 c096d7b4 00000000 00000015 c0956e80<BR />[&nbsp;&nbsp; 72.466040] a020&nbsp; c136b320 00000000 c093a000 6142b3eb d617d140 c0957120 c093bfb4 c093bf00<BR />[&nbsp;&nbsp; 72.474917] a040&nbsp; c06b8a20 00000000 00000000 00000000 00000000 00000000 00010000 00000000<BR />[&nbsp;&nbsp; 72.483846] a060&nbsp; 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000<BR />[&nbsp;&nbsp; 72.492780] Process swapper (pid: 0, stack limit = 0xc093a2f0)<BR />[&nbsp;&nbsp; 72.498674] Stack: (0xc093bf48 to 0xc093c000)<BR />[&nbsp;&nbsp; 72.503145] bf40:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 00000270 c005d1b0 ffffffff f2a00100 00000044 00000002<BR />[&nbsp;&nbsp; 72.511439] bf60: 00000001 c005c34c c09e4548 800f0093 00000001 00000000 c093a000 c09cffe4<BR />[&nbsp;&nbsp; 72.519681] bf80: c094fa70 c06bdea4 c0958084 412fc09a 00000000 00000000 00000000 c093bfb0<BR />[&nbsp;&nbsp; 72.527975] bfa0: c006c284 c005d468 400f0013 ffffffff c005d444 c005d790 c095061c 00000000<BR />[&nbsp;&nbsp; 72.536270] bfc0: c003b2fc c1367180 1000406a c00088bc c00082f8 00000000 00000000 c003b2fc<BR />[&nbsp;&nbsp; 72.544512] bfe0: 00000000 10c53c7d c094fa6c c003b2f8 c095807c 10008040 00000000 00000000<BR />[&nbsp;&nbsp; 72.552808] Code: dbbeb3f2 ddbefffd ffcfe7df 6deffeff (ff7f1ac9) <BR />[&nbsp;&nbsp; 72.559069] ---[ end trace fad26496e1ea4e91 ]---<BR />[&nbsp;&nbsp; 72.563777] Kernel panic - not syncing: Fatal exception in interrupt<BR />[&nbsp;&nbsp; 72.570277] [&lt;c0063fe4&gt;] (unwind_backtrace+0x0/0x138) from [&lt;c06b41ac&gt;] (panic+0x74/0x194)<BR />[&nbsp;&nbsp; 72.578623] [&lt;c06b41ac&gt;] (panic+0x74/0x194) from [&lt;c0060478&gt;] (die+0x220/0x284)<BR />[&nbsp;&nbsp; 72.586067] [&lt;c0060478&gt;] (die+0x220/0x284) from [&lt;c0056134&gt;] (do_undefinstr+0x130/0x140)<BR />[&nbsp;&nbsp; 72.594296] [&lt;c0056134&gt;] (do_undefinstr+0x130/0x140) from [&lt;c005c444&gt;] (__und_svc+0x44/0x60)<BR />[&nbsp;&nbsp; 72.602857] Exception stack(0xc093bf00 to 0xc093bf48)<BR />[&nbsp;&nbsp; 72.607974] bf00: c093e34c 00000044 00010002 00000002 c09507d0 c0054dc4 c093a000 00000044<BR />[&nbsp;&nbsp; 72.616279] bf20: 00000000 c093a000 00000000 00000000 d61f360c c093bf48 c80e1640 c80e1640<BR />[&nbsp;&nbsp; 72.624530] bf40: 200f0193 ffffffff<BR />[&nbsp;&nbsp; 72.628137] [&lt;c005c444&gt;] (__und_svc+0x44/0x60) from [&lt;c80e1640&gt;] (0xc80e1640)<BR />[&nbsp;&nbsp; 72.635351] CPU1: stopping<BR />[&nbsp;&nbsp; 72.638188] [&lt;c0063fe4&gt;] (unwind_backtrace+0x0/0x138) from [&lt;c00563a8&gt;] (do_IPI+0x1d4/0x208)<BR />[&nbsp;&nbsp; 72.646695] [&lt;c00563a8&gt;] (do_IPI+0x1d4/0x208) from [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8)<BR />[&nbsp;&nbsp; 72.654639] Exception stack(0xd6065ee8 to 0xd6065f30)<BR />[&nbsp;&nbsp; 72.659754] 5ee0:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 00000000 c09e2c00 00000000 c09e2c20 00000202 d6064000<BR />[&nbsp;&nbsp; 72.668049] 5f00: d6064000 00000000 00000001 d6065f90 00000000 00000000 c0063770 d6065f30<BR />[&nbsp;&nbsp; 72.676341] 5f20: c00a3ea0 c00a37f0 20070113 ffffffff<BR />[&nbsp;&nbsp; 72.681459] [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8) from [&lt;c00a37f0&gt;] (__do_softirq+0x60/0x25c)<BR />[&nbsp;&nbsp; 72.689841] [&lt;c00a37f0&gt;] (__do_softirq+0x60/0x25c) from [&lt;c00a3ea0&gt;] (irq_exit+0x98/0xa0)<BR />[&nbsp;&nbsp; 72.698136] [&lt;c00a3ea0&gt;] (irq_exit+0x98/0xa0) from [&lt;c0056324&gt;] (do_IPI+0x150/0x208)<BR />[&nbsp;&nbsp; 72.705998] [&lt;c0056324&gt;] (do_IPI+0x150/0x208) from [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8)<BR />[&nbsp;&nbsp; 72.713889] Exception stack(0xd6065f90 to 0xd6065fd8)<BR />[&nbsp;&nbsp; 72.719054] 5f80:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c09e4548 80070093 00000001 00000000<BR />[&nbsp;&nbsp; 72.727295] 5fa0: d6064000 c09cffe4 c094fa70 c06bdea4 c0958084 412fc09a 00000000 00000000<BR />[&nbsp;&nbsp; 72.735586] 5fc0: 00000000 d6065fd8 c006c284 c005d468 40070013 ffffffff<BR />[&nbsp;&nbsp; 72.742321] [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8) from [&lt;c005d468&gt;] (default_idle+0x24/0x28)<BR />[&nbsp;&nbsp; 72.750567] [&lt;c005d468&gt;] (default_idle+0x24/0x28) from [&lt;c005d790&gt;] (cpu_idle+0xe0/0x124)<BR />[&nbsp;&nbsp; 72.758862] [&lt;c005d790&gt;] (cpu_idle+0xe0/0x124) from [&lt;106afbd4&gt;] (0x106afbd4)<BR />[&nbsp;&nbsp; 72.766113] CPU2: stopping<BR />[&nbsp;&nbsp; 72.768896] [&lt;c0063fe4&gt;] (unwind_backtrace+0x0/0x138) from [&lt;c00563a8&gt;] (do_IPI+0x1d4/0x208)<BR />[&nbsp;&nbsp; 72.777455] [&lt;c00563a8&gt;] (do_IPI+0x1d4/0x208) from [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8)<BR />[&nbsp;&nbsp; 72.785346] Exception stack(0xd6071ee8 to 0xd6071f30)<BR />[&nbsp;&nbsp; 72.790513] 1ee0:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 00000000 c09e2c00 00000000 c09e2c40 00000202 d6070000<BR />[&nbsp;&nbsp; 72.798807] 1f00: d6070000 00000000 00000002 d6071f90 00000000 00000000 c0063770 d6071f30<BR />[&nbsp;&nbsp; 72.807046] 1f20: c00a3ea0 c00a37f0 200f0113 ffffffff<BR />[&nbsp;&nbsp; 72.812216] [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8) from [&lt;c00a37f0&gt;] (__do_softirq+0x60/0x25c)<BR />[&nbsp;&nbsp; 72.820600] [&lt;c00a37f0&gt;] (__do_softirq+0x60/0x25c) from [&lt;c00a3ea0&gt;] (irq_exit+0x98/0xa0)<BR />[&nbsp;&nbsp; 72.828843] [&lt;c00a3ea0&gt;] (irq_exit+0x98/0xa0) from [&lt;c0056324&gt;] (do_IPI+0x150/0x208)<BR />[&nbsp;&nbsp; 72.836706] [&lt;c0056324&gt;] (do_IPI+0x150/0x208) from [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8)<BR />[&nbsp;&nbsp; 72.844650] Exception stack(0xd6071f90 to 0xd6071fd8)<BR />[&nbsp;&nbsp; 72.849762] 1f80:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c09e4548 600f0093 00000001 00000000<BR />[&nbsp;&nbsp; 72.858056] 1fa0: d6070000 c09cffe4 c094fa70 c06bdea4 c0958084 412fc09a 00000000 00000000<BR />[&nbsp;&nbsp; 72.866349] 1fc0: 00000000 d6071fd8 c006c284 c005d468 400f0013 ffffffff<BR />[&nbsp;&nbsp; 72.873030] [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8) from [&lt;c005d468&gt;] (default_idle+0x24/0x28)<BR />[&nbsp;&nbsp; 72.881327] [&lt;c005d468&gt;] (default_idle+0x24/0x28) from [&lt;c005d790&gt;] (cpu_idle+0xe0/0x124)<BR />[&nbsp;&nbsp; 72.889623] [&lt;c005d790&gt;] (cpu_idle+0xe0/0x124) from [&lt;106afbd4&gt;] (0x106afbd4)<BR />[&nbsp;&nbsp; 72.896820] CPU3: stopping<BR />[&nbsp;&nbsp; 72.899603] [&lt;c0063fe4&gt;] (unwind_backtrace+0x0/0x138) from [&lt;c00563a8&gt;] (do_IPI+0x1d4/0x208)<BR />[&nbsp;&nbsp; 72.908162] [&lt;c00563a8&gt;] (do_IPI+0x1d4/0x208) from [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8)<BR />[&nbsp;&nbsp; 72.916105] Exception stack(0xd609bee8 to 0xd609bf30)<BR />[&nbsp;&nbsp; 72.921219] bee0:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 00000000 c09e2c00 00000000 c09e2c60 00000282 d609a000<BR />[&nbsp;&nbsp; 72.929512] bf00: d609a000 00000000 00000003 d609bf90 00000000 00000000 c0063770 d609bf30<BR />[&nbsp;&nbsp; 72.937806] bf20: c00a3ea0 c00a37f0 200d0113 ffffffff<BR />[&nbsp;&nbsp; 72.942924] [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8) from [&lt;c00a37f0&gt;] (__do_softirq+0x60/0x25c)<BR />[&nbsp;&nbsp; 72.951305] [&lt;c00a37f0&gt;] (__do_softirq+0x60/0x25c) from [&lt;c00a3ea0&gt;] (irq_exit+0x98/0xa0)<BR />[&nbsp;&nbsp; 72.959599] [&lt;c00a3ea0&gt;] (irq_exit+0x98/0xa0) from [&lt;c0056324&gt;] (do_IPI+0x150/0x208)<BR />[&nbsp;&nbsp; 72.967408] [&lt;c0056324&gt;] (do_IPI+0x150/0x208) from [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8)<BR />[&nbsp;&nbsp; 72.975351] Exception stack(0xd609bf90 to 0xd609bfd8)<BR />[&nbsp;&nbsp; 72.980517] bf80:&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; c09e4548 600d0093 00000001 00000000<BR />[&nbsp;&nbsp; 72.988759] bfa0: d609a000 c09cffe4 c094fa70 c06bdea4 c0958084 412fc09a 00000000 00000000<BR />[&nbsp;&nbsp; 72.997053] bfc0: 00000000 d609bfd8 c006c284 c005d468 400d0013 ffffffff<BR />[&nbsp;&nbsp; 73.003857] [&lt;c005c34c&gt;] (__irq_svc+0x4c/0xe8) from [&lt;c005d468&gt;] (default_idle+0x24/0x28)<BR />[&nbsp;&nbsp; 73.012101] [&lt;c005d468&gt;] (default_idle+0x24/0x28) from [&lt;c005d790&gt;] (cpu_idle+0xe0/0x124)<BR />[&nbsp;&nbsp; 73.020397] [&lt;c005d790&gt;] (cpu_idle+0xe0/0x124) from [&lt;106afbd4&gt;] (0x106afbd4)</DIV><DIV> </DIV><DIV>please help me to analyze the problem,and how to resolve it .Thank you very much!</DIV></BODY></HTML> Fri, 14 Jul 2017 07:31:24 GMT https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669474#M103038 pengxingwei 2017-07-14T07:31:24Z Re: imx6q Android4.4.2 reboot https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669475#M103039 <HTML><HEAD></HEAD><BODY><P>Hi peng</P><P></P><P>this may be caused by ddr errors, please run ddr test</P><P><A class="link-titled" href="https://community.freescale.com/docs/DOC-105652" title="https://community.freescale.com/docs/DOC-105652">https://community.freescale.com/docs/DOC-105652</A>&nbsp;</P><P>and rebuild image with new calibration coefficients.</P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Fri, 14 Jul 2017 10:46:01 GMT https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669475#M103039 igorpadykov 2017-07-14T10:46:01Z Re: imx6q Android4.4.2 reboot https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669476#M103040 <HTML><HEAD></HEAD><BODY><P>Hi igorpadyko</P><P>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; I have modfied relative ddr value accroding the ddr test,this has about 80 machine running long time,but there are still several machines that&nbsp; reboot&nbsp; ,Is there any other reason for this reboot problem? thanks</P></BODY></HTML> Tue, 18 Jul 2017 02:34:47 GMT https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669476#M103040 pengxingwei 2017-07-18T02:34:47Z Re: imx6q Android4.4.2 reboot https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669477#M103041 <HTML><HEAD></HEAD><BODY><P>among other reasons may be power supplies, please check its requirements in</P><P>i.MX6 System Development User’s Guide</P><P><A href="https://community.nxp.com/external-link.jspa?url=http%3A%2F%2Fcache.freescale.com%2Ffiles%2F32bit%2Fdoc%2Fuser_guide%2FIMX6DQ6SDLHDG.pdf" rel="nofollow" target="_blank">http://cache.freescale.com/files/32bit/doc/user_guide/IMX6DQ6SDLHDG.pdf</A></P><P></P><P>Best regards<BR />igor</P></BODY></HTML> Tue, 18 Jul 2017 06:27:45 GMT https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669477#M103041 igorpadykov 2017-07-18T06:27:45Z Re: imx6q Android4.4.2 reboot https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669478#M103042 <HTML><HEAD></HEAD><BODY><P>Hi, if I want to change the ddr3 frequency from 528M to 400M ,how to modify the file for uboot-2009,thanks</P></BODY></HTML> Tue, 18 Jul 2017 06:49:20 GMT https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669478#M103042 pengxingwei 2017-07-18T06:49:20Z Re: imx6q Android4.4.2 reboot https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669479#M103043 <HTML><HEAD></HEAD><BODY><P>is it working good without gpu ? As since this old kernel many gpu</P><P>bugs were found and fixed on last android releases.</P><P></P><P>~igor</P></BODY></HTML> Tue, 18 Jul 2017 09:23:23 GMT https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669479#M103043 igorpadykov 2017-07-18T09:23:23Z Re: imx6q Android4.4.2 reboot https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669480#M103044 <HTML><HEAD></HEAD><BODY><P>hi，<A _jive_internal="true" class="" data-content-finding="Community" data-userid="253212" data-username="pengxingwei" href="https://community.nxp.com/people/pengxingwei" style="color: #5e89c1; background-color: #ffffff; border: 0px; font-weight: 200; text-decoration: none; font-size: 1.286rem;">peng xingwei</A>:</P><P>I have the same problem like yours.</P><P>I tested my board use linux,it is work ok when used linux. Never hang.</P><P>Only crashed in android.</P><P>How to resolve it??</P><P>Thanks !!</P></BODY></HTML> Wed, 01 Nov 2017 14:06:35 GMT https://community.nxp.com/t5/i-MX-Processors/imx6q-Android4-4-2-reboot/m-p/669480#M103044 HaohuaQIN 2017-11-01T14:06:35Z