Hi,
we are seeing this behavior when mpurate=1000, but the kernel boots fine if mpurate=800 and below. Is was seen on both the EVM and the customer board. Besides the kernel panic, I would also like to understand why somehow the L3 clock cannot be set up correctly to 400MHz?
Unable to set L3 frequency (400000000)
Switched to new clocking rate (Crystal/Core/MPU): 26.0/200/1000 MHz
IVA2 clocking rate: 800 MHz
Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c0004000 [00000000] *pgd=00000000 Internal error: Oops: 805 [#1] last sysfs file:
Modules linked in:
CPU: 0 Not tainted (2.6.32-3.2 #3.2-mydevice.1)
PC is at hrtimer_interrupt+0x8/0x304
LR is at omap2_gp_timer_interrupt+0x24/0x34
pc : [<c00736e0>] lr : [<c003d128>] psr: 00000193
sp : cf823ea4 ip : cf823ef0 fp : c04497cc
r10: c0449704 r9 : c0449768 r8 : 3b9aca00
r7 : 00000025 r6 : c0452f28 r5 : 00000000 r4 : c0447b40
r3 : c0447b68 r2 : c0488440 r1 : 00000002 r0 : c0447b68
Flags: nzcv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel
Control: 10c5387d Table: 80004019 DAC: 00000017 Process swapper (pid: 1, stack limit = 0xcf8222e8)
Stack: (0xcf823ea4 to 0xcf824000)
3ea0: c0447b40 00000000 00000000 00000025 3b9aca00 c0449768
c0449704
3ec0: c04497cc c003d128 0000001c c0086030 00000000 c04541e4 00000025 c0452710
3ee0: c0445a00 c0087b0c c0062908 00000025 00000000 c0031074 c0449780 ffffffff
3f00: fa200000 c0031af0 00004000 00000001 ffff6c60 ffff6c60 ffff6c60 c0452710
3f20: c0452710 c0445a00 3b9aca00 c0449768 c0449704 c04497cc 0000315b cf823f50
3f40: c0027680 c0027670 60000013 ffffffff c04497cc 000000c8 00000000 0bebc200
3f60: 0000001a 3b9aca00 c0449704 c0010a88 000003e8 c0447dfc 00000004 c044a7d0
3f80: 00000000 c0447dfc c0447e40 c0010398 00000000 00000000 00000000 00000000
3fa0: 00000000 c0010478 c0028ab0 08028af8 c000f9e8 c0028ab4 c0028af8 c003135c
3fc0: 00000000 00000192 c0453650 00000000 00000000 c0028ab4 c0028af8 00000000
3fe0: 00000000 c0008584 00000000 00000000 00000000 c0032f40 00a000a0 00501020 [<c00736e0>] (hrtimer_interrupt+0x8/0x304) from [<00000000>] (0x0)
Code: c4653600 3b9ac9ff e92d4ff0 e59f62d8 (e24dd02c) ---[ end trace 71cc34b0ee99df8d ]--- Kernel panic - not syncing: Fatal exception in interrupt
Thanks,
--Gunter