![]() ![]() CPU: 0 PID: 1 Comm: swapper Not tainted 3.19.0-gec1fe39 #1 | IP-Config:Auto-configuration_of_network_failed | 0 | 0 | 1 | | backtrace:kernel_init_freeable | 0 | 9 | 9 | | backtrace:async_run_entry_fn | 18 | 2 | | | backtrace:floppy_async_init | 18 | 2 | | | WARNING:at_drivers/block/floppy.c:#schedule_bh() | 18 | 2 | | | backtrace:ring_buffer_producer_thread | 8 | 1 | | | Kernel_panic-not_syncing:hung_task:blocked_tasks | 8 | 1 | | | INFO:task_blocked_for_more_than#seconds | 8 | 1 | | Warnings if there are no pendings callbacks. Note that the check for pending callback is necessary to avoid spurious Jiffies_stall (jiffies at next stall) correctly updated. With this fix INFO about the stall is printed and Should check rcp->rcucblist for the presence of pending callbacks which ![]() It is however a tail pointer and thus NULL by definition. The tiny RCU CPU stall detection depends on *rcp->curtail not being ![]() Rcu: Fix RCU CPU stall detection in tiny implementation McKenney, linux-kernel, LKPÄ day kernel testing robot got the below dmesg and the first bad commit is To: Miroslav Benes +Cc: fengguang.wu, Paul E. INFO: rcu_sched stall on CPU (30000 ticks this GP) idle=140000000000001 (t=30000 jiffies q=1) All of help / color / mirror / Atom feed * INFO: rcu_sched stall on CPU (30000 ticks this GP) idle=140000000000001 (t=30000 jiffies q=1) 12:44 ` Fengguang Wu 0 siblings, 0 replies 4+ messages in thread ![]()
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