Hi,
After resuming from deep sleep, sometimes I face this warning
[ 333.439727] ------------[ cut here ]------------
[ 333.444631] WARNING: CPU: 0 PID: 1028 at drivers/bus/omap_l3_noc.c:147 l3_interrupt_handler+0x24c/0x394()
[ 333.454713] 44000000.ocp:L3 Standard Error: MASTER M1 (128-bit) TARGET EMIF (Write Non-Posted): At Address: 0x5BA4ABF0 :s
[ 333.470752] Modules linked in: mmc_block uinput ipv6 bcmdhd cfg80211 usb_f_acm u_serial usb_f_rndis u_ether libcomposite)
[ 333.563832] CPU: 0 PID: 1028 Comm: secins Tainted: G O 3.14.43 #1
[ 333.571169] Backtrace:
[ 333.573770] [<c010a6a0>] (dump_backtrace+0x0/0x10c) from [<c010a83c>] (show_stack+0x18/0x1c)
[ 333.582670] r6:00000093 r5:00000009 r4:dda43bd8 r3:e0945bd9
[ 333.588662] [<c010a824>] (show_stack+0x0/0x1c) from [<c04b02c0>] (dump_stack+0x20/0x28)
[ 333.597107] [<c04b02a0>] (dump_stack+0x0/0x28) from [<c0133180>] (warn_slowpath_common+0x6c/0x8c)
[ 333.606471] [<c0133114>] (warn_slowpath_common+0x0/0x8c) from [<c0133244>] (warn_slowpath_fmt+0x38/0x40)
[ 333.616465] r8:c05b2618 r7:c05b2220 r6:c04dba28 r5:80080001 r4:de91f790
[ 333.623544] [<c0133210>] (warn_slowpath_fmt+0x4/0x40) from [<c0327814>] (l3_interrupt_handler+0x24c/0x394)
[ 333.633727] r3:de91fa00 r2:c05b22ec
[ 333.637515] [<c03275c8>] (l3_interrupt_handler+0x0/0x394) from [<c0169ba0>] (handle_irq_event_percpu+0x54/0x1c4)
[ 333.648246] r10:de807e00 r9:c073cbdb r8:0000003a r7:00000000 r6:00000000 r5:de91f400
[ 333.656515] r4:de91f400
[ 333.659191] [<c0169b4c>] (handle_irq_event_percpu+0x0/0x1c4) from [<c0169d68>] (handle_irq_event+0x58/0x8c)
[ 333.669459] r10:00000000 r9:00000000 r8:00000000 r7:dda43d9c r6:00000000 r5:de91f400
[ 333.677733] r4:de807e00
[ 333.680413] [<c0169d10>] (handle_irq_event+0x0/0x8c) from [<c016ca0c>] (handle_fasteoi_irq+0x7c/0x160)
[ 333.690223] r5:0000003a r4:de807e00
[ 333.694006] [<c016c990>] (handle_fasteoi_irq+0x0/0x160) from [<c01693f4>] (generic_handle_irq+0x28/0x38)
[ 333.704000] r4:0000003a r3:c016c990
[ 333.707781] [<c01693cc>] (generic_handle_irq+0x0/0x38) from [<c0107880>] (handle_IRQ+0x38/0x8c)
[ 333.716952] r4:c072a8c0 r3:00000218
[ 333.720734] [<c0107848>] (handle_IRQ+0x0/0x8c) from [<c0100808>] (gic_handle_irq+0x3c/0x54)
[ 333.729540] r6:dda43d68 r5:c070841c r4:fa24010c r3:00000100
[ 333.735527] [<c01007cc>] (gic_handle_irq+0x0/0x54) from [<c010b5b8>] (__irq_svc+0x78/0xd4)
[ 333.744234] Exception stack(0xdda43d68 to 0xdda43db0)
[ 333.749562] 3d60: 00000000 00000000 00000000 00000000 00000000 00000000
[ 333.758188] 3d80: 00000000 00000000 00000000 00000000 00000000 00000000 00000000 dda43db8
[ 333.766812] 3da0: c0120ff0 c0120f14 800f0193 ffffffff
What could be the cause?
In addition, checking System.map , addresses present in the exception stack, c0120ff0 and c0120f14 are always related to omap2_smc and omap_secure_dispatcher
BR
Claudio
