On Fri, Apr 12, 2019 at 10:41:54PM +0800, Liu, Changcheng wrote: > Hi Jason, Please don't do top-posting. > 1. When userspace get "-EACCES" value, it shouldn't continue query > within limited times. There's not much log. What will prevent from me to call such bad application in the loop? > > 2. It's helpful to know the permission problem through kernel logs. It is not kernel problem, but application. Kernel logs is not right place for it. > > 3. I hit one userspace app crash and checked several aspects without > any finding until dynamic trace the kernel to know that why > "permission" is denied in ib_uverbs_write function. It is not different from many other errors returned from the kernel. Thanks
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