> On Sep 21, 2015, at 1:24 PM, Brian King <brking@xxxxxxxxxxxxxxxxxx> wrote: > On 09/16/2015 04:30 PM, Matthew R. Ochs wrote: >> Borrowing the TMF waitq's spinlock causes a stall condition when >> waiting for the TMF to complete. To remedy, introduce our own spin >> lock to serialize TMF and use the appropriate wait services. > > Can you clarify what stall condition you were seeing. Its not obvious > to me what this fixes. Do you have soft lockup logs from the failure? I believe we saw cascading RCU stalls. I couldn't find any more details in my notes or development commits. Unfortunately the logs are long gone as this was fixed in June. -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
