Hi,
I have a at91sam9260-ek and I use linux-2.6.21. I try to use my board as a USB Mass Storage device. So I load g_file_storage, … All is OK : I see the board on my PC, I can read, write, … So I umount the board to my desktop … All is again OK on my board and on the PC but when I unplug the board to the PC I have an error on the board :

BUG: soft lockup detected on CPU#0!
[<c0024a7c>] (dump_stack+0x0/0x14) from [<c005aabc>] (softlockup_tick+0xa8/0xe8)
[<c005aa14>] (softlockup_tick+0x0/0xe8) from [<c00410e8>] (run_local_timers+0x18/0x1c)
r8 = 00000103 r7 = 00000001 r6 = 00000000 r5 = 00000000
r4 = C02B7E88
[<c00410d0>] (run_local_timers+0x0/0x1c) from [<c004113c>] (update_process_times+0x50/0x78)
[<c00410ec>] (update_process_times+0x0/0x78) from [<c0024990>] (timer_tick+0xc8/0xe8)
r6 = 00000000 r5 = FEFFC000 r4 = C02D66F0
[<c00248c8>] (timer_tick+0x0/0xe8) from [<c002ba38>] (at91sam926x_timer_interrupt+0x50/0xa8)
r5 = FEFFC000 r4 = C02D66F0
[<c002b9e8>] (at91sam926x_timer_interrupt+0x0/0xa8) from [<c005afbc>] (handle_IRQ_event+0x44/0x80)
r5 = 00000000 r4 = C02B9A60
[<c005af78>] (handle_IRQ_event+0x0/0x80) from [<c005c624>] (handle_level_irq+0xe0/0x15c)
r7 = C02B9A60 r6 = 00000000 r5 = 00000001 r4 = C02B4080
[<c005c544>] (handle_level_irq+0x0/0x15c) from [<c00215c0>] (asm_do_IRQ+0x40/0x70)
r7 = C02B3F54 r6 = C02DA680 r5 = 00000001 r4 = C02B4080
[<c0021580>] (asm_do_IRQ+0x0/0x70) from [<c0020858>] (__irq_svc+0x38/0x64)
r7 = 00000104 r6 = 00000001 r5 = FEFFF000 r4 = FFFFFFFF
[<c003c950>] (__do_softirq+0x0/0xcc) from [<c003cbec>] (irq_exit+0x44/0x58)
r7 = 00000000 r6 = C02DA680 r5 = 00000001 r4 = C02B4080
[<c003cba8>] (irq_exit+0x0/0x58) from [<c00215d4>] (asm_do_IRQ+0x54/0x70)
[<c0021580>] (asm_do_IRQ+0x0/0x70) from [<c0020858>] (__irq_svc+0x38/0x64)
r7 = 00000002 r6 = 00000001 r5 = FEFFF000 r4 = FFFFFFFF
[<c00217bc>] (default_idle+0x0/0x54) from [<c0021858>] (cpu_idle+0x48/0x74)
[<c0021810>] (cpu_idle+0x0/0x74) from [<c0020038>] (__init_end+0x38/0x40)
r5 = C02D0848 r4 = C02D8CFC
[<c0020000>] (__init_end+0x0/0x40) from [<c000890c>] (start_kernel+0x250/0x2b8)
[<c00086bc>] (start_kernel+0x0/0x2b8) from [<20008030>] (0x20008030)

I don’t know what it is. Have you ever see this error? Could you help me please?

Thanks in advance

Pierre