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On Sat, Aug 29, 2015 at 3:09 PM, Peter Weilbacher |
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<newsspam@××××××××××.org> wrote: |
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> On Tue, 25 Aug 2015, Alexander Kapshuk wrote: |
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> |
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>> I've never experienced this particular kernel trouble myself, so I'm |
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>> not sure if my input would be of much help. |
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>> Here's what the kernel documentation has to say about this kind of issue: |
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>> |
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>> /usr/src/linux/Documentation/RCU/stallwarn.txt:29,33 |
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> [...] |
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>> Have a look for possibly stack traces in these log files: |
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>> /var/log/{messages,dmesg}. |
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>> |
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>> Hopefully, someone else with more kernel debugging experience will |
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>> have something more substantial to say about this. |
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> |
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> Thanks for the reply, Alex. I had googled for those messages, too, and |
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> had found that RCU info. Unfortunately, I have no idea what to do with |
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> it, since it stops right at the booting stage, right before init starts, |
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> so before I can do anything interactive. |
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> |
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> I have posted a message to the LKML, maybe someone there has a hint. |
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> (The machine is old and rarely used, but I would still like to run the |
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> newest software because it is connected to the net.) |
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> |
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> Peter. |
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> |
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|
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Hope you do get this sorted. |
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|
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You probably did look into this yourself, but did you double-check |
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your /etc/lilo.conf? Is everything fine there? |
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|
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Here are my RCU kernel config options. What do yours look like? |
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% uname -r |
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4.1.6-vanilla |
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% grep RCU .config |
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# RCU Subsystem |
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CONFIG_TREE_RCU=y |
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CONFIG_SRCU=y |
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# CONFIG_TASKS_RCU is not set |
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CONFIG_RCU_STALL_COMMON=y |
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CONFIG_RCU_FANOUT=32 |
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CONFIG_RCU_FANOUT_LEAF=16 |
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# CONFIG_RCU_FANOUT_EXACT is not set |
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# CONFIG_RCU_FAST_NO_HZ is not set |
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# CONFIG_TREE_RCU_TRACE is not set |
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CONFIG_RCU_KTHREAD_PRIO=0 |
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# CONFIG_RCU_NOCB_CPU is not set |
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# CONFIG_RCU_EXPEDITE_BOOT is not set |
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# RCU Debugging |
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# CONFIG_PROVE_RCU is not set |
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# CONFIG_SPARSE_RCU_POINTER is not set |
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# CONFIG_RCU_TORTURE_TEST is not set |
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CONFIG_RCU_CPU_STALL_TIMEOUT=21 |
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# CONFIG_RCU_CPU_STALL_INFO is not set |
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# CONFIG_RCU_TRACE is not set |