Armadilloフォーラム

樺沢と申します。

armadillo-x1（Linux version 4.9.133-at6 (atmark@atde7)）で起動時に
kern.logの中に以下のスタックトレースが出ているのですが、
発生する原因はなんでしょうか？
また対策方法などはありますでしょうか？

------------[ cut here ]------------
WARNING: CPU: 1 PID: 1 at drivers/cpufreq/cpufreq_interactive.c:371
irq_work+0x460/0x4c0
Modules linked in:
CPU: 1 PID: 1 Comm: swapper/0 Not tainted 4.9.133-at6 #394 Hardware name: Freescale i.MX7 Dual (Device Tree) [<8010f8e0>] (unwind_backtrace) from [<8010b478>] (show_stack+0x10/0x14) [<8010b478>] (show_stack) from [<803ec7ac>] (dump_stack+0x78/0x8c) [<803ec7ac>] (dump_stack) from [<80130cfc>] (__warn+0xe8/0x100) [<80130cfc>] (__warn) from [<80130dc4>] (warn_slowpath_null+0x20/0x28) [<80130dc4>] (warn_slowpath_null) from [<807cbad0>] (irq_work+0x460/0x4c0) [<807cbad0>] (irq_work) from [<801b3fd8>] (irq_work_run_list+0x7c/0xb8) [<801b3fd8>] (irq_work_run_list) from [<801b4040>] (irq_work_run+0x2c/0x44) [<801b4040>] (irq_work_run) from [<8010e608>] (handle_IPI+0xa0/0x1ac) [<8010e608>] (handle_IPI) from [<80101524>] (gic_handle_irq+0x88/0x8c) [<80101524>] (gic_handle_irq) from [<8010be4c>] (__irq_svc+0x6c/0xa8) Exception stack(0xa8089e18 to 0xa8089e60)
9e00: 815a6348 00000000
hub 2-1:1.0: 3 ports detected
9e20: ffb0e600 8085d44c 815fafa8 00001f3f 036445ab 815a6558 f5380000 30380000
9e40: f57a0000 307a0000 9667ffea a8089e68 803ea5f8 8010f220 a0010013 ffffffff [<8010be4c>] (__irq_svc) from [<8010f220>]
(arch_timer_read_counter_long+0x10/0x18)
[<8010f220>] (arch_timer_read_counter_long) from [<803ea5f8>]
(__timer_delay+0x48/0x58)
[<803ea5f8>] (__timer_delay) from [<8011cf00>] (imx7d_enable_rcosc+0x54/0x9c) [<8011cf00>] (imx7d_enable_rcosc) from [<8120a760>]
(imx7d_cpuidle_init+0x15c/0x1c8)
[<8120a760>] (imx7d_cpuidle_init) from [<8120bfdc>]
(imx7d_init_late+0x38/0x40)
[<8120bfdc>] (imx7d_init_late) from [<8120365c>]
(init_machine_late+0x20/0x90)
[<8120365c>] (init_machine_late) from [<801017fc>]
(do_one_initcall+0x44/0x16c)
[<801017fc>] (do_one_initcall) from [<81200e4c>]
(kernel_init_freeable+0x1cc/0x258)
[<81200e4c>] (kernel_init_freeable) from [<80bafccc>] (kernel_init+0x8/0x110) [<80bafccc>] (kernel_init) from [<80107790>] (ret_from_fork+0x14/0x24) ---[ end trace 8ba44c3cdbd2aa35 ]---