8e70975f90
The Linux kernel watchdog will automatically dump a backtrace for any process while sleeps for over 120s in an uninterruptible state. The solution is for the prefetch thread to sleep in an interruptible state. The way the existing code was written this is safe because when woken it will always reevaluate its conditional. As a general rule it is preferable to sleep in an interruptible when possible. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #3450 Closes #3402 |
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