Hi,
what does the entry
{.text.lock.spinlock+14}
in the following call trace mean?
Was the CPU waiting in a spinlock?
Thanks in advance,
best regards,
Erich
Call Trace:<ffffffff801115fc>{show_stack+241}
<ffffffff80111726>{show_registers+277}
<ffffffff80111a2d>{die_nmi+130} <ffffffff8011c8cd>{nmi_watchdog_tick+210}
<ffffffff80112304>{default_do_nmi+122} <ffffffff8011c983>{do_nmi+115}
<ffffffff80110f0f>{paranoid_exit+0} <ffffffff8025024f>{cfq_merge+0}
<ffffffff803045a2>{.text.lock.spinlock+14} <EOE>
<ffffffff8015c2ff>{buffered_rmqueue+126}
<ffffffff8015c6ed>{__alloc_pages+505}
<ffffffff80171b47>{alloc_page_interleave+61}
<ffffffff8015c8d9>{__get_free_pages+11} <ffffffff8015f850>{kmem_getpages+36}
<ffffffff8025024f>{cfq_merge+0} <ffffffff8025024f>{cfq_merge+0}
<ffffffff8015ffe5>{cache_alloc_refill+609}
<ffffffff8015fd23>{kmem_cache_alloc+90}
<ffffffff8015b284>{mempool_alloc+129}
<ffffffff8013474a>{autoremove_wake_function+0}
<ffffffff8013474a>{autoremove_wake_function+0}
<ffffffff80248b62>{get_request+300}
<ffffffff802499c8>{__make_request+794}
<ffffffff80249d7a>{generic_make_request+355}
<ffffffffa003fa28>{:raid1:make_request+737}
<ffffffff8015b284>{mempool_alloc+129}
<ffffffff80249d7a>{generic_make_request+355}
<ffffffff8013474a>{autoremove_wake_function+0}
<ffffffff80249e86>{submit_bio+247}
<ffffffff8015e0b3>{test_set_page_writeback+197}
<ffffffff8016e326>{get_swap_bio+74} <ffffffff8016e4a0>{swap_writepage+178}
<ffffffff801638d7>{shrink_zone+3095} <ffffffff803037b4>{thread_return+42}
<ffffffff8013edbc>{del_timer_sync+31}
<ffffffff8013ee5c>{del_singleshot_timer_sync+21}
<ffffffff80303e17>{schedule_timeout+252}
<ffffffff801641ef>{balance_pgdat+506}
<ffffffff80164439>{kswapd+252}
<ffffffff8013474a>{autoremove_wake_function+0}
<ffffffff80131c95>{finish_task_switch+55}
<ffffffff8013474a>{autoremove_wake_function+0}
<ffffffff80131ce4>{schedule_tail+11} <ffffffff80110ce3>{child_rip+8}
<ffffffff8016433d>{kswapd+0} <ffffffff80110cdb>{child_rip+0}
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