On 22/09/08 08:51AM, Alexey Lyahkov wrote: > Hi Ritesh, > > This was hit on the Lustre OSS node when we have ton’s of short write with sync/(journal commit) in parallel. > Each write was done from own thread (like 1k-2k threads in parallel). > It caused a situation when only few/some threads make a wakeup and enter to the transaction until it will be T_LOCKED. > In our’s observation all handles from head was waked and it’s handles added recently, while old handles still in list and Thanks Alexey for providing the details. > It caused a soft lockup messages on console. Did you mean hung task timeout? I was wondering why will there be soft lockup warning, because these old handles are anyway in a waiting state right. Am I missing something? -ritesh
