BUG: scheduling while atomic: dslmgmt/53â8/0x000002â01

From: Mushtaq Khan
Date: Tue Sep 16 2014 - 07:49:47 EST


Hi,

I see the error message "BUG: scheduling while atomic: dslmgmt"
intermittently. As per other post on similar issue, this happens when
schedule() is called from either interrupt context or some other
atomic operation (Might be after acquiring spinlock).
But from the call trace am not getting any clue, please help me guide
on this issue.

BUG: scheduling while atomic: dslmgmt/538/0x00000201
Modules linked in: iptable_mangle init_addr( (null) - (null)),
core_addr(c036
9000 - c0369210)
iptable_filter init_addr( (null) - (null)), core_addr(c0362000 - c03620b0)
ip_tables init_addr( (null) - (null)), core_addr(c0359000 - c035b618)
xt_multiport init_addr( (null) - (null)), core_addr(c034f000 - c034f2d8)
pktflow(P) init_addr( (null) - (null)), core_addr(c0067000 - c0074800)
bcm_bpm(P) init_addr( (null) - (null)), core_addr(c0045000 - c0046470)
bcm_ingqos(P) init_addr( (null) - (null)), core_addr(c003a000 - c003b070)
chipinfo(P) init_addr( (null) - (null)), core_addr(c0031000 - c0031198)

Call Trace:
[<802a0d6c>] printk+0x24/0x30
[<80074714>] print_modules+0x88/0x144
[<802a43c8>] __schedule+0x54c/0x58c
[<802a12d0>] __schedule_bug+0x38/0x54
[<802a0b30>] dump_stack+0x8/0x34
[<802a43c8>] __schedule+0x54c/0x58c
[<8017d0f0>] do_output_char+0x1b4/0x220
[<801876ec>] uart_write+0xd8/0x15c
[<8017d19c>] process_output+0x40/0x6c
[<802a4580>] schedule+0x58/0xb4
[<800f1dc0>] fsnotify+0x1b0/0x2dc
[<802a3514>] do_nanosleep+0xf8/0x13c
[<80055c98>] hrtimer_nanosleep+0xb4/0x158
[<80054dd8>] hrtimer_wakeup+0x0/0x2c
[<80044f00>] sys_rt_sigaction+0x78/0xd4
[<80055da8>] sys_nanosleep+0x6c/0x94
[<8001b95c>] stack_done+0x20/0x40
Call Trace:
[<802a0b30>] dump_stack+0x8/0x34
[<802a43c8>] __schedule+0x54c/0x58c
[<802a4580>] schedule+0x58/0xb4
[<802a3514>] do_nanosleep+0xf8/0x13c
[<80055c98>] hrtimer_nanosleep+0xb4/0x158
[<80055da8>] sys_nanosleep+0x6c/0x94
[<8001b95c>] stack_done+0x20/0x40

Regards,
Mushtaq Khan
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