On 25/07/17 03:34, Shawn Lin wrote: > Hi > > On 2017/7/24 18:09, Adrian Hunter wrote: >> On 24/07/17 12:17, Shawn Lin wrote: >>> Hi Adrian, >>> >>> On 2017/7/21 17:49, Adrian Hunter wrote: >>>> Hi >>>> >>>> Here is V4 of the hardware command queue patches without the software >>>> command queue patches. >>>> >>> >>> I see this log for the reboot test last weekend. One of my boards >>> seems to easily trigger this WARN_ONCE. >>> >>> [ 10.012778] mmc1: cqhci: spurious TCN for tag 31 >> >> Tag 31 is DCMD. DCMD can be problematic which is one of the reasons it is >> optional. In this case it looks like you are getting a TCN before the DCMD >> is actually finished. You should be able to see if that is the case by > > yes, it is that case you refer to. > >> dumping the registers when it happens, although you will need to stop >> messages going to the console because that will be too slow. > > okay, I will remove DCMD caps for the test and see what we could > do to make DCMD more robust later. > Are you going to do more review of CQ? -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
