Part Number: DRA712
Other Parts Discussed in Thread: DRA71
hi all experts,
my board SOC is DRA711, kernel version is 4.14.94, and run VisionSDK0304 on IPU2 when early boot.
now i do reboot test every 6 seconds, but sometime it cause kernel crash, log as following:
Uncompressing Linux... done, booting the kernel. 1:tttttttttttttttttt start_kernel..123.. [ 0.397813] Unhandled fault: asynchronous external abort (0x1211) at 0x00000000 [ 0.397816] pgd = c0003000 [ 0.397820] [00000000] *pgd=80000080004003, *pmd=00000000 [ 0.397833] Internal error: : 1211 [#1] PREEMPT SMP ARM [ 0.397837] Modules linked in: [ 0.397846] CPU: 0 PID: 1 Comm: swapper/0 Tainted: G W 4.14.94-rt50-03028-g6d246d8-dirty #47 [ 0.397848] Hardware name: Generic DRA72X (Flattened Device Tree) [ 0.397852] task: dd068000 task.stack: dd066000 [ 0.397864] PC is at regmap_mmio_read32le+0x1c/0x20 [ 0.397871] LR is at regmap_mmio_read+0x40/0x5c [ 0.397875] pc : [<c0588da4>] lr : [<c0588f64>] psr: 20000013 [ 0.397879] sp : dd067ca8 ip : dd067cb8 fp : dd067cb4 [ 0.397883] r10: 00000000 r9 : 0000ffff r8 : 00000000 [ 0.397887] r7 : dd3de200 r6 : dd067d0c r5 : 0000002c r4 : dd3ddbc0 [ 0.397890] r3 : fa44a000 r2 : dd067d0c r1 : fa44a02c r0 : 00000000 [ 0.397896] Flags: nzCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user [ 0.397901] Control: 30c5387d Table: 80003000 DAC: fffffffd [ 0.397905] Process swapper/0 (pid: 1, stack limit = 0xdd066210) [ 0.397909] Stack: (0xdd067ca8 to 0xdd068000) [ 0.397916] 7ca0: dd067cd4 dd067cb8 c0588f64 c0588d94 dd3de200 0000002c [ 0.397922] 7cc0: dd067d0c dd3de200 dd067ce4 dd067cd8 c058366c c0588f30 dd067d04 dd067ce8 [ 0.397930] 7ce0: c0584e88 c058365c 00000000 dd3de200 0000002c 0000aaaa dd067d3c dd067d08 [ 0.397936] 7d00: c0585208 c0584e2c c0759efc c024ffd0 dd3de200 dd3de200 0000002c 00000000 [ 0.397943] 7d20: 0000ffff 00000000 0000aaaa 00000000 dd067d74 dd067d40 c058626c c0585180 [ 0.397950] 7d40: 00000000 00000000 dd067d74 00000000 dd1e3410 dd1e3400 dd398510 dfcc515c [ 0.397957] 7d60: dd1e3410 c0c24104 dd067dcc dd067d78 c04b18b4 c0586220 00000000 00000000 [ 0.397963] 7d80: 00000000 00000000 dd067dbc dd067d98 c039cb34 c0399000 dd1e3410 00000000 [ 0.397970] 7da0: dd1e3418 dd1e3410 ffffffed c0c240bc fffffdfb c0c240bc 00000000 00000000 [ 0.397976] 7dc0: dd067dec dd067dd0 c056ef1c c04b17d4 dd1e3410 c0c978dc c0c978f4 00000000 [ 0.397983] 7de0: dd067e1c dd067df0 c056d424 c056eed0 00000000 dd1e3410 c0c240bc dd1e3444 [ 0.397990] 7e00: 00000000 c0a37834 00000075 c0c3d000 dd067e3c dd067e20 c056d59c c056d218 [ 0.397996] 7e20: 00000000 c0c240bc c056d4f0 00000000 dd067e64 dd067e40 c056b74c c056d4fc [ 0.398003] 7e40: dd04486c dd1d6b48 c075a0c0 c0c240bc dd398480 c0c2d050 dd067e74 dd067e68 [ 0.398009] 7e60: c056cdd0 c056b704 dd067e9c dd067e78 c056c8c8 c056cdb8 c0939224 dd067e88 [ 0.398016] 7e80: c0c240bc 00000000 c0a1d9d4 c0c3d000 dd067eb4 dd067ea0 c056df10 c056c744 [ 0.398023] 7ea0: c0c2d050 00000000 dd067ecc dd067eb8 c056ee74 c056de9c ffffe000 00000000 [ 0.398029] 7ec0: dd067edc dd067ed0 c0a1d9f0 c056ee38 dd067f4c dd067ee0 c0201860 c0a1d9e0 [ 0.398036] 7ee0: dd067f4c dd067ef0 c0247f00 c0a00624 c0919a4c c0919a2c c0919a78 c0922ed8 [ 0.398042] 7f00: 00000000 c0919a04 00000006 00000006 c0955554 c09a54d0 dfcff992 dfcff9a5 [ 0.398049] 7f20: c0270148 c09a54d0 00000007 c09a54d0 c0a46494 00000007 c0c3d000 c0a37834 [ 0.398055] 7f40: dd067f94 dd067f50 c0a00f80 c0201820 00000006 00000006 00000000 c0a00618 [ 0.398062] 7f60: 00000000 c0a00618 00000000 00000000 c0754ab0 00000000 00000000 00000000 [ 0.398069] 7f80: 00000000 00000000 dd067fac dd067f98 c0754ac0 c0a00d64 00000000 c0754ab0 [ 0.398075] 7fa0: 00000000 dd067fb0 c0207aa0 c0754abc 00000000 00000000 00000000 00000000 [ 0.398081] 7fc0: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000 [ 0.398087] 7fe0: 00000000 00000000 00000000 00000000 00000013 00000000 00000000 00000000 [ 0.398089] Backtrace: [ 0.398104] [<c0588d88>] (regmap_mmio_read32le) from [<c0588f64>] (regmap_mmio_read+0x40/0x5c) [ 0.398115] [<c0588f24>] (regmap_mmio_read) from [<c058366c>] (_regmap_bus_reg_read+0x1c/0x20) [ 0.398122] r7:dd3de200 r6:dd067d0c r5:0000002c r4:dd3de200 [ 0.398131] [<c0583650>] (_regmap_bus_reg_read) from [<c0584e88>] (_regmap_read+0x68/0xc0) [ 0.398141] [<c0584e20>] (_regmap_read) from [<c0585208>] (_regmap_update_bits+0x94/0xcc) [ 0.398146] r7:0000aaaa r6:0000002c r5:dd3de200 r4:00000000 [ 0.398157] [<c0585174>] (_regmap_update_bits) from [<c058626c>] (regmap_update_bits_base+0x58/0x7c) [ 0.398164] r10:00000000 r9:0000aaaa r8:00000000 r7:0000ffff r6:00000000 r5:0000002c [ 0.398167] r4:dd3de200 [ 0.398178] [<c0586214>] (regmap_update_bits_base) from [<c04b18b4>] (ti_iodelay_probe+0xec/0x468) [ 0.398185] r10:c0c24104 r9:dd1e3410 r8:dfcc515c r7:dd398510 r6:dd1e3400 r5:dd1e3410 [ 0.398188] r4:00000000 [ 0.398197] [<c04b17c8>] (ti_iodelay_probe) from [<c056ef1c>] (platform_drv_probe+0x58/0xb4) [ 0.398204] r10:00000000 r9:00000000 r8:c0c240bc r7:fffffdfb r6:c0c240bc r5:ffffffed [ 0.398207] r4:dd1e3410 [ 0.398219] [<c056eec4>] (platform_drv_probe) from [<c056d424>] (driver_probe_device+0x218/0x2e4) [ 0.398224] r7:00000000 r6:c0c978f4 r5:c0c978dc r4:dd1e3410 [ 0.398235] [<c056d20c>] (driver_probe_device) from [<c056d59c>] (__driver_attach+0xac/0xb0) [ 0.398242] r10:c0c3d000 r9:00000075 r8:c0a37834 r7:00000000 r6:dd1e3444 r5:c0c240bc [ 0.398245] r4:dd1e3410 r3:00000000 [ 0.398256] [<c056d4f0>] (__driver_attach) from [<c056b74c>] (bus_for_each_dev+0x54/0xa4) [ 0.398262] r7:00000000 r6:c056d4f0 r5:c0c240bc r4:00000000 [ 0.398271] [<c056b6f8>] (bus_for_each_dev) from [<c056cdd0>] (driver_attach+0x24/0x28) [ 0.398276] r6:c0c2d050 r5:dd398480 r4:c0c240bc [ 0.398286] [<c056cdac>] (driver_attach) from [<c056c8c8>] (bus_add_driver+0x190/0x214) [ 0.398296] [<c056c738>] (bus_add_driver) from [<c056df10>] (driver_register+0x80/0xfc) [ 0.398301] r7:c0c3d000 r6:c0a1d9d4 r5:00000000 r4:c0c240bc [ 0.398310] [<c056de90>] (driver_register) from [<c056ee74>] (__platform_driver_register+0x48/0x50) [ 0.398314] r5:00000000 r4:c0c2d050 [ 0.398326] [<c056ee2c>] (__platform_driver_register) from [<c0a1d9f0>] (ti_iodelay_driver_init+0x1c/0x20) [ 0.398330] r5:00000000 r4:ffffe000 [ 0.398339] [<c0a1d9d4>] (ti_iodelay_driver_init) from [<c0201860>] (do_one_initcall+0x4c/0x170) [ 0.398347] [<c0201814>] (do_one_initcall) from [<c0a00f80>] (kernel_init_freeable+0x228/0x2c4) [ 0.398353] r8:c0a37834 r7:c0c3d000 r6:00000007 r5:c0a46494 r4:c09a54d0 [ 0.398364] [<c0a00d58>] (kernel_init_freeable) from [<c0754ac0>] (kernel_init+0x10/0x114) [ 0.398370] r10:00000000 r9:00000000 r8:00000000 r7:00000000 r6:00000000 r5:c0754ab0 [ 0.398372] r4:00000000 [ 0.398382] [<c0754ab0>] (kernel_init) from [<c0207aa0>] (ret_from_fork+0x14/0x34) [ 0.398386] r5:c0754ab0 r4:00000000 [ 0.398394] Code: e5903000 e0831001 e5910000 f57ff04f (e89da800) [ 1.021105] ---[ end trace 0000000000000002 ]--- [ 1.021266] Kernel panic - not syncing: Attempted to kill init! exitcode=0x0000000b [ 1.021266]
objdump the kernel assembly code of "regmap_mmio_read32le" function as following:
c0592228 <regmap_mmio_read32le>:
c0592228: e1a0c00d mov ip, sp
c059222c: e92dd800 push {fp, ip, lr, pc}
c0592230: e24cb004 sub fp, ip, #4
c0592234: e5903000 ldr r3, [r0]
c0592238: e0831001 add r1, r3, r1
c059223c: e5910000 ldr r0, [r1]
c0592240: f57ff04f dsb sy
c0592244: e89da800 ldm sp, {fp, sp, pc}
static unsigned int regmap_mmio_read32le(struct regmap_mmio_context *ctx,
unsigned int reg)
{
return readl(ctx->regs + reg);
}
it is very simple function, and the assembly code is simple too, why register r0 turn into 000000, but execute "ldr r3, [r0]" is not 00000?
could anyone give me a hint? what cause this problem?
best regards!
