I'm having trouble with the 2.6.31 kernel running on an OMAP2430 board. I was able to get the board to boot using 2.6.31rc1, but am having some issue with 2.6.31. With low-level debugging enabled, I get the output below. It appears to be an issue with the new hwmod system, which didn't exist in 2.6.31rc1. It dies during the initialization of mpu_hwmod. Specifically, it fails on the call to pwrdm_add_sleepdep() within _add_initiator_dep(). Anyone have any suggestions as to how to fix this or what to try? Thanks, Chris ------------------------------------------------------------------------------------------------------------------------------------------------------ Starting kernel ... Uncompressing Linux..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... done, booting the kernel. <5>Linux version 2.6.31-omap1 (cbanker@vcaeng05) (gcc version 4.3.3 (GCC) ) #27 Wed Nov 18 17:23:18 PST 2009 CPU: ARMv6-compatible processor [4107b366] revision 6 (ARMv6TEJ), cr=00c5387f CPU: VIPT aliasing data cache, VIPT aliasing instruction cache Machine: BFT Digital Modem Memory policy: ECC disabled, Data cache writeback <7>On node 0 totalpages: 32768 <7>free_area_init_node: node 0, pgdat c0f10848, node_mem_map c0f35000 <7> Normal zone: 256 pages used for memmap <7> Normal zone: 0 pages reserved <7> Normal zone: 32512 pages, LIFO batch:7 <6>OMAP2430<6> <6>SRAM: Mapped pa 0x40200000 to va 0xe3000000 size: 0x100000 Built 1 zonelists in Zone order, mobility grouping on. Total pages: 32512 <5>Kernel command line: root=/dev/ram0 rw console=ttys2,115200n8 PID hash table entries: 512 (order: 9, 2048 bytes) <6>Dentry cache hash table entries: 16384 (order: 4, 65536 bytes) <6>Inode-cache hash table entries: 8192 (order: 3, 32768 bytes) <6>Memory: 128MB = 128MB total <5>Memory: 114232KB available (3084K code, 327K data, 12124K init, 0K highmem) <6>NR_IRQS:384 <6>Clocking rate (Crystal/DPLL/MPU): 19.2/660/330 MHz <1>Unable to handle kernel NULL pointer dereference at virtual address 00000004 <1>pgd = c0004000 <1>[00000004] *pgd=00000000 Internal error: Oops: 5 [#1] <d>Modules linked in: CPU: 0 Not tainted (2.6.31-omap1 #27) PC is at _enable+0x78/0x208 LR is at release_console_sem+0x1a8/0x204 pc : [<c0be9098>] lr : [<c0bff998>] psr: a00001d3 sp : c0ee3f38 ip : c0ee3e80 fp : c0ee3f4c r10: 80022140 r9 : 4107b366 r8 : 80022174 r7 : c0ee86b4 r6 : c0be95cc r5 : c0ee6154 r4 : c0ee6154 r3 : 00000000 r2 : 00000000 r1 : 000005b2 r0 : 0000001f Flags: NzCv IRQs off FIQs off Mode SVC_32 ISA ARM Segment kernel Control: 00c5387f Table: 80004000 DAC: 00000017 Process swapper (pid: 0, stack limit = 0xc0ee2260) Stack: (0xc0ee3f38 to 0xc0ee4000) 3f20: c0ee6634 c0ee6154 3f40: c0ee3f68 c0ee3f50 c0be9648 c0be902c 00000000 c0ee6154 c0be95cc c0ee3f88 3f60: c0ee3f6c c0be8a6c c0be95d8 c0eece48 c0eece48 c0bdbe08 c0ee5b34 c0ee3f98 3f80: c0ee3f8c c0be98f4 c0be8a44 c0ee3fb0 c0ee3f9c c000dfc4 c0be98a0 c0f11190 3fa0: c0f11184 c0ee3fc0 c0ee3fb4 c000ef0c c000df50 c0ee3fd0 c0ee3fc4 c000b878 3fc0: c000eee8 c0ee3ff4 c0ee3fd4 c0008a2c c000b84c c0008658 c0bdbe08 00c5387d 3fe0: c0f11440 c0bdc20c 00000000 c0ee3ff8 80008034 c00088fc 00000000 00000000 Backtrace: [<c0be9020>] (_enable+0x0/0x208) from [<c0be9648>] (_setup+0x7c/0xb0) r4:c0ee6154 [<c0be95cc>] (_setup+0x0/0xb0) from [<c0be8a6c>] (omap_hwmod_for_each+0x34/0x78) r6:c0be95cc r5:c0ee6154 r4:00000000 [<c0be8a38>] (omap_hwmod_for_each+0x0/0x78) from [<c0be98f4>] (omap_hwmod_late_init+0x60/0x8c) r7:c0ee5b34 r6:c0bdbe08 r5:c0eece48 r4:c0eece48 [<c0be9894>] (omap_hwmod_late_init+0x0/0x8c) from [<c000dfc4>] (omap2_init_common_hw+0x80/0xbc) [<c000df44>] (omap2_init_common_hw+0x0/0xbc) from [<c000ef0c>] (omap2430bft_init_irq+0x30/0x1c4) r5:c0f11184 r4:c0f11190 [<c000eedc>] (omap2430bft_init_irq+0x0/0x1c4) from [<c000b878>] (init_IRQ+0x38/0x44) [<c000b840>] (init_IRQ+0x0/0x44) from [<c0008a2c>] (start_kernel+0x13c/0x2ac) [<c00088f0>] (start_kernel+0x0/0x2ac) from [<80008034>] (0x80008034) r6:c0bdc20c r5:c0f11440 r4:00c5387d Code: 0a000005 e5933020 e592205c e593305c (e5920004) <4>---[ end trace 1b75b31a2719ed1c ]--- <0>Kernel panic - not syncing: Attempted to kill the idle task! -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
