[meta-freescale] BUG: scheduling while atomic in _cpu_down
zhenhua.luo at freescale.com
zhenhua.luo at freescale.com
Thu Jan 15 18:25:22 PST 2015
Hi Tudor,
Can you please check if the issue can be reproduced in dizzy branch which includes the latest QorIQ SDK recipes? Can the issue be reproduced without PREEMPT__LL?
Please try to avoid word-wrapping logs. It's hard to read.
Best Regards,
Zhenhua
> -----Original Message-----
> From: meta-freescale-bounces at yoctoproject.org [mailto:meta-freescale-
> bounces at yoctoproject.org] On Behalf Of Tudor Florea
> Sent: Tuesday, January 13, 2015 7:40 AM
> To: meta-freescale at yoctoproject.org
> Subject: [meta-freescale] BUG: scheduling while atomic in _cpu_down
>
> Hi,
> The "reboot" command produce the exception below on Linux-qoriq, low
> latency preemption on daisy branch.
> Is this a known issue? Does anyone have a hint to fix this?
> Thank you very much.
> Regards,
> Tudor
>
> # uname -a
> Linux m2020 3.8.13-rt9+ #2 SMP PREEMPT Wed Jan 7 12:10:54 CET 2015 ppc
> GNU/Linux
>
> #zcat /proc/config.gz | grep PREEMPT
> CONFIG_TREE_PREEMPT_RCU=y
> CONFIG_PREEMPT_RCU=y
> CONFIG_PREEMPT=y
> CONFIG_HAVE_PREEMPT_LAZY=y
> # CONFIG_PREEMPT_NONE is not set
> # CONFIG_PREEMPT_VOLUNTARY is not set
> CONFIG_PREEMPT__LL=y
> # CONFIG_PREEMPT_RTB is not set
> # CONFIG_PREEMPT_RT_FULL is not set
> CONFIG_PREEMPT_COUNT=y
> CONFIG_DEBUG_PREEMPT=y
> CONFIG_PREEMPT_TRACER=y
> # CONFIG_PREEMPT_OFF_HIST is not set
> Rebooting... Disabling non-boot CPUs ...
> BUG: scheduling while atomic: reboot/2286/0x00000002 Modules linked in:
> Preemption disabled at:[< (null)>] (null)
>
> Call Trace:
> [ee471aa0] [c000d3c4] show_stack+0x180/0x2c4 (unreliable) [ee471af0]
> [c00dc594] __schedule_bug+0xf0/0x150 [ee471b10] [c0a7ad4c]
> __schedule+0xdc/0x1018 [ee471c30] [c0a79728]
> schedule_timeout+0x360/0x3b4 [ee471ca0] [c0a7a9e0]
> wait_for_common+0x120/0x228 [ee471cf0] [c00c4e20]
> kthread_create_on_node+0x9c/0x15c [ee471d60] [c01b80b4]
> _cpu_down+0x6dc/0x7bc [ee471dd0] [c0084e8c]
> disable_nonboot_cpus+0x108/0x1fc [ee471e10] [c00a9960]
> kernel_restart+0x28/0xbc [ee471e20] [c00a9b4c] sys_reboot+0x12c/0x24c
> [ee471f40] [c0018380] ret_from_syscall+0x0/0x3c
> --- Exception: c01 at 0xff06a6c
> LR = 0x10000c24
> BUG: scheduling while atomic: reboot/2286/0x00000002 Modules linked in:
> Preemption disabled at:[< (null)>] (null)
>
> Call Trace:
> [ee471b10] [c000d3c4] show_stack+0x180/0x2c4 (unreliable) [ee471b60]
> [c00dc594] __schedule_bug+0xf0/0x150 [ee471b80] [c0a7ad4c]
> __schedule+0xdc/0x1018 [ee471ca0] [c0a79728]
> schedule_timeout+0x360/0x3b4 [ee471d10] [c0a7a9e0]
> wait_for_common+0x120/0x228 [ee471d60] [c01b7e20]
> _cpu_down+0x448/0x7bc [ee471dd0] [c0084e8c]
> disable_nonboot_cpus+0x108/0x1fc [ee471e10] [c00a9960]
> kernel_restart+0x28/0xbc [ee471e20] [c00a9b4c] sys_reboot+0x12c/0x24c
> [ee471f40] [c0018380] ret_from_syscall+0x0/0x3c
> --- Exception: c01 at 0xff06a6c
> LR = 0x10000c24
> BUG: scheduling while atomic: reboot/2286/0x00000002 Modules linked in:
> Preemption disabled at:[< (null)>] (null)
>
> Call Trace:
> [ee471a70] [c000d3c4] show_stack+0x180/0x2c4 (unreliable) [ee471ac0]
> [c00dc594] __schedule_bug+0xf0/0x150 [ee471ae0] [c0a7ad4c]
> __schedule+0xdc/0x1018 [ee471c00] [c0a79728]
> schedule_timeout+0x360/0x3b4 [ee471c70] [c0a7a9e0]
> wait_for_common+0x120/0x228 [ee471cc0] [c00b5710]
> flush_work+0x1e0/0x2cc [ee471d10] [c0a97a14]
> workqueue_cpu_down_callback+0x54/0x70
> [ee471d30] [c0a857f8] notifier_call_chain+0xc8/0x124 [ee471d60] [c01b7e44]
> _cpu_down+0x46c/0x7bc [ee471dd0] [c0084e8c]
> disable_nonboot_cpus+0x108/0x1fc [ee471e10] [c00a9960]
> kernel_restart+0x28/0xbc [ee471e20] [c00a9b4c] sys_reboot+0x12c/0x24c
> [ee471f40] [c0018380] ret_from_syscall+0x0/0x3c
> --- Exception: c01 at 0xff06a6c
> LR = 0x10000c24
> BUG: scheduling while atomic: reboot/2286/0x00000002 Modules linked in:
> Preemption disabled at:[< (null)>] (null)
>
> Call Trace:
> [ee471ad0] [c000d3c4] show_stack+0x180/0x2c4 (unreliable) [ee471b20]
> [c00dc594] __schedule_bug+0xf0/0x150 [ee471b40] [c0a7ad4c]
> __schedule+0xdc/0x1018 [ee471c60] [c0a79728]
> schedule_timeout+0x360/0x3b4 [ee471cd0] [c0a7a9e0]
> wait_for_common+0x120/0x228 [ee471d20] [c00c5dd0]
> kthread_park+0x188/0x18c [ee471d40] [c00d7390]
> smpboot_park_threads+0x90/0xb8 [ee471d60] [c01b7e64]
> _cpu_down+0x48c/0x7bc [ee471dd0] [c0084e8c]
> disable_nonboot_cpus+0x108/0x1fc [ee471e10] [c00a9960]
> kernel_restart+0x28/0xbc [ee471e20] [c00a9b4c] sys_reboot+0x12c/0x24c
> [ee471f40] [c0018380] ret_from_syscall+0x0/0x3c
> --- Exception: c01 at 0xff06a6c
> LR = 0x10000c24
> BUG: scheduling while atomic: reboot/2286/0x00000002 Modules linked in:
> Preemption disabled at:[< (null)>] (null)
>
> Call Trace:
> [ee471b10] [c000d3c4] show_stack+0x180/0x2c4 (unreliable) [ee471b60]
> [c00dc594] __schedule_bug+0xf0/0x150 [ee471b80] [c0a7ad4c]
> __schedule+0xdc/0x1018 [ee471ca0] [c0a79728]
> schedule_timeout+0x360/0x3b4 [ee471d10] [c0a7a9e0]
> wait_for_common+0x120/0x228 [ee471d60] [c01b7ea8]
> _cpu_down+0x4d0/0x7bc [ee471dd0] [c0084e8c]
> disable_nonboot_cpus+0x108/0x1fc [ee471e10] [c00a9960]
> kernel_restart+0x28/0xbc [ee471e20] [c00a9b4c] sys_reboot+0x12c/0x24c
> [ee471f40] [c0018380] ret_from_syscall+0x0/0x3c
> --- Exception: c01 at 0xff06a6c
> LR = 0x10000c24
> BUG: scheduling while atomic: reboot/2286/0x00000002 Modules linked in:
> Preemption disabled at:[< (null)>] (null)
>
> Call Trace:
> [ee471ae0] [c000d3c4] show_stack+0x180/0x2c4 (unreliable) [ee471b30]
> [c00dc594] __schedule_bug+0xf0/0x150 [ee471b50] [c0a7ad4c]
> __schedule+0xdc/0x1018 [ee471c70] [c0a79728]
> schedule_timeout+0x360/0x3b4 [ee471ce0] [c0a7a9e0]
> wait_for_common+0x120/0x228 [ee471d30] [c00c5a40]
> kthread_stop+0x324/0x354 [ee471d60] [c01b7eb0] _cpu_down+0x4d8/0x7bc
> [ee471dd0] [c0084e8c] disable_nonboot_cpus+0x108/0x1fc [ee471e10]
> [c00a9960] kernel_restart+0x28/0xbc [ee471e20] [c00a9b4c]
> sys_reboot+0x12c/0x24c [ee471f40] [c0018380] ret_from_syscall+0x0/0x3c
> --- Exception: c01 at 0xff06a6c
> LR = 0x10000c24
> BUG: scheduling while atomic: reboot/2286/0x00000002 Modules linked in:
> Preemption disabled at:[< (null)>] (null)
>
> Call Trace:
> [ee471b20] [c000d3c4] show_stack+0x180/0x2c4 (unreliable) [ee471b70]
> [c00dc594] __schedule_bug+0xf0/0x150 [ee471b90] [c0a7ad4c]
> __schedule+0xdc/0x1018 [ee471cb0] [c0133814]
> wait_for_stop_done+0x40/0x8c [ee471cc0] [c0133e00]
> __stop_cpus+0x6c/0x94 [ee471cf0] [c01342bc] stop_cpus+0x4c/0x70
> [ee471d10] [c0134554] __stop_machine+0x1d0/0x1e4 [ee471d60] [c01b7ecc]
> _cpu_down+0x4f4/0x7bc [ee471dd0] [c0084e8c]
> disable_nonboot_cpus+0x108/0x1fc [ee471e10] [c00a9960]
> kernel_restart+0x28/0xbc [ee471e20] [c00a9b4c] sys_reboot+0x12c/0x24c
> [ee471f40] [c0018380] ret_from_syscall+0x0/0x3c
> --- Exception: c01 at 0xff06a6c
> LR = 0x10000c24
> BUG: scheduling while atomic: reboot/2286/0x00000002 Modules linked in:
> Preemption disabled at:[< (null)>] (null)
>
> Call Trace:
> [ee471b30] [c000d3c4] show_stack+0x180/0x2c4 (unreliable) [ee471b80]
> [c00dc594] __schedule_bug+0xf0/0x150 [ee471ba0] [c0a7ad4c]
> __schedule+0xdc/0x1018 [ee471cc0] [c0a7962c]
> schedule_timeout+0x264/0x3b4 [ee471d30] [c009d720] msleep+0x34/0x50
> [ee471d40] [c001ac34] generic_cpu_die+0x48/0xc4 [ee471d60] [c01b7f34]
> _cpu_down+0x55c/0x7bc [ee471dd0] [c0084e8c]
> disable_nonboot_cpus+0x108/0x1fc [ee471e10] [c00a9960]
> kernel_restart+0x28/0xbc [ee471e20] [c00a9b4c] sys_reboot+0x12c/0x24c
> [ee471f40] [c0018380] ret_from_syscall+0x0/0x3c
> --- Exception: c01 at 0xff06a6c
> LR = 0x10000c24
> Restarting system.
> --
> _______________________________________________
> meta-freescale mailing list
> meta-freescale at yoctoproject.org
> https://lists.yoctoproject.org/listinfo/meta-freescale
More information about the meta-freescale
mailing list