Comment 22 for bug 1097213

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Naresh Kamboju (naresh-kamboju) wrote : Re: switcher_off_hotplug_cpu.sh failed on IKS kernel

bug has reproduced on https://android-build.linaro.org/builds/~linaro-android-restricted/vexpress-linaro-iks/#build=131

Linux kernel:
Linux localhost 3.7.6-00698-gb0bdf24 #1 SMP Tue Feb 26 05:46:17 UTC 2013 armv7

i can see kernel crash dump this time.

[ 188.408249] CPU3: shutdown
[ 188.480902] CPU4: shutdown
[ 188.491961] CPU1: Booted secondary processor
[ 188.505343] arm_big_little: bl_cpufreq_init: Initialized, cpu: 1, cluster 0
[ 188.528721] CPU2: Booted secondary processor
[ 188.545184] arm_big_little: bl_cpufreq_init: Initialized, cpu: 2, cluster 1
[ 188.575739] CPU3: Booted secondary processor
[ 188.592186] arm_big_little: bl_cpufreq_init: Initialized, cpu: 3, cluster 1
[ 188.685424] CPU4: Booted secondary processor
[ 188.698672] arm_big_little: bl_cpufreq_init: Initialized, cpu: 4, cluster 1
[ 188.772464] CPU1: shutdown
[ 188.877050] arm_big_little: bl_cpufreq_init: Initialized, cpu: 3, cluster 1
[ 248.957718] INFO: rcu_sched detected stalls on CPUs/tasks: { 4} (detected by)
[ 248.983812] Backtrace for cpu 0 (current):
[ 248.996080] [<c001469c>] (unwind_backtrace+0x0/0xf8) from [<c00135b8>] (smp_)
[ 249.025786] [<c00135b8>] (smp_send_all_cpu_backtrace+0x60/0xcc) from [<c0087)
[ 249.057055] [<c0087064>] (rcu_check_callbacks+0x584/0x6b0) from [<c0032cfc>])
[ 249.086759] [<c0032cfc>] (update_process_times+0x38/0x68) from [<c006abb0>] )
[ 249.115162] [<c006abb0>] (tick_sched_timer+0x80/0xec) from [<c0047470>] (__r)
[ 249.142001] [<c0047470>] (__run_hrtimer+0x84/0x1b4) from [<c0048050>] (hrtim)
[ 249.169620] [<c0048050>] (hrtimer_interrupt+0x110/0x2d8) from [<c001401c>] ()
[ 249.199584] [<c001401c>] (arch_timer_handler_virt+0x30/0x38) from [<c0082504)
[ 249.230852] [<c0082504>] (handle_percpu_devid_irq+0x90/0x130) from [<c007ed1)
[ 249.260818] [<c007ed10>] (generic_handle_irq+0x20/0x30) from [<c000ea68>] (h)
[ 249.287135] [<c000ea68>] (handle_IRQ+0x4c/0xb0) from [<c0008570>] (gic_handl)
[ 249.312410] [<c0008570>] (gic_handle_irq+0x28/0x5c) from [<c000ddc0>] (__irq)
[ 249.337421] Exception stack(0xc056fef8 to 0xc056ff40)

full log can be found at:
https://pastebin.linaro.org/1826/