On 2014/5/29 4:09, Aaro Koskinen wrote: > Hi, > > On Tue, May 27, 2014 at 12:16:30PM +0800, Li Zefan wrote: >> On 2014/5/21 13:36, Yong Zhang wrote: >>> asid_cache must be unsigned long otherwise on 64bit system >>> it will become 0 if the value in get_new_mmu_context() >>> reaches 0xffffffff and in the end the assumption of >>> ASID_FIRST_VERSION is not true anymore thus leads to >>> more dangerous things. >> >> We should describe what problem this bug can lead to, which >> will help people who encounter the same problem and google it. > > Please describe it, then. Even if the patch is already committed, > googling would probably still find this e-mail thread. > I don't think Ralf has committed it, so we'll send out a fix with detailed changelog.
