On Monday 2014-03-24 01:38, David Miller wrote:
>> Trying to update beyond 3.9 gives me a boot hang on SPARC T1000.
>> The following commit is the result of the bisect:
>>
>> commit 87fa05aeb3a5e8e21b1a5510eef6983650eff092
>> Author: Sam Ravnborg <sam@xxxxxxxxxxxx>
>> Date: Thu Apr 11 21:38:50 2013 +0200
>>
>> sparc: Use generic idle loop
>
>Interesting.
>
>> mptbase: ioc0: Initiating bringup
>> <hangs>
>>
>> after ~1 minute:
>>
>> INFO: rcu_sched self-detected stall on CPU { 0} (t=30061 jiffies
>> g=18446744073709551319 c=18446744073709551318 q=414)
>> INFO: rcu_sched detected stalls on CPUs/tasks:* CPU[ 0]:
>> TSTATE[0000000080001603] TPC[000000000042b9b4] TNPC[000000000042b9b8]
>> TASK[swapper/0:0]
>> TPC[arch_cpu_idle+0x74/0xa0] O7[arch_cpu_idle+0x5c/0xa0]
>> I7[cpu_startup_entry+0x114/0x1a0] RPC[start_kernel+0x384/0x394]
>
>I suspect the cpu yield hypervisor call requires local cpu interrupts
>to be enabled in order to function properly. Prior to this commit
>above, they did.
>
>Please try this:
>
>commit 87fa05aeb3a5e8e21b1a5510eef6983650eff092
This is the same commit as before (both in ID, as well as patch content).
Did you intend to paste another patch?
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