On 01/05/2018 05:50 AM, akpm@xxxxxxxxxxxxxxxxxxxx wrote: > The mm-of-the-moment snapshot 2018-01-04-16-19 has been uploaded to > > http://www.ozlabs.org/~akpm/mmotm/ > > mmotm-readme.txt says > > README for mm-of-the-moment: > > http://www.ozlabs.org/~akpm/mmotm/ > > This is a snapshot of my -mm patch queue. Uploaded at random hopefully > more than once a week. > > You will need quilt to apply these patches to the latest Linus release (4.x > or 4.x-rcY). The series file is in broken-out.tar.gz and is duplicated in > http://ozlabs.org/~akpm/mmotm/series > > The file broken-out.tar.gz contains two datestamp files: .DATE and > .DATE-yyyy-mm-dd-hh-mm-ss. Both contain the string yyyy-mm-dd-hh-mm-ss, > followed by the base kernel version against which this patch series is to > be applied. > > This tree is partially included in linux-next. To see which patches are > included in linux-next, consult the `series' file. Only the patches > within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in > linux-next. > > A git tree which contains the memory management portion of this tree is > maintained at git://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git Seems like this latest snapshot mmotm-2018-01-04-16-19 has not been updated in this git tree. I could not fetch not it shows up in the http link below. https://git.kernel.org/pub/scm/linux/kernel/git/mhocko/mm.git The last one mmotm-2017-12-22-17-55 seems to have some regression on powerpc with respect to ELF loading of binaries (see below). Seems to be related to recent MAP_FIXED_SAFE (or MAP_FIXED_NOREPLACE as seen now in the code). IIUC (have not been following the series last month) MAP_FIXED_NOREPLACE will fail an allocation request if the hint address cannot be reserve instead of changing existing mappings. Is it possible that ELF loading needs to be fixed at a higher level to deal with these new possible mmap() failures because of MAP_FIXED_NOREPLACE ? [ 22.448068] 9060 (hostname): Uhuuh, elf segment at 0000000010020000 requested but the memory is mapped already [ 22.450135] 9063 (sed): Uhuuh, elf segment at 0000000010030000 requested but the memory is mapped already [ 22.456484] 9066 (hostname): Uhuuh, elf segment at 0000000010020000 requested but the memory is mapped already [ 22.458171] 9069 (sed): Uhuuh, elf segment at 0000000010030000 requested but the memory is mapped already [ 22.505341] 9078 (sed): Uhuuh, elf segment at 0000000010030000 requested but the memory is mapped already [ 22.506961] 9081 (sed): Uhuuh, elf segment at 0000000010030000 requested but the memory is mapped already [ 22.508736] 9084 (sed): Uhuuh, elf segment at 0000000010030000 requested but the memory is mapped already [ 22.510589] 9087 (sed): Uhuuh, elf segment at 0000000010030000 requested but the memory is mapped already [ 22.512442] 9090 (sed): Uhuuh, elf segment at 0000000010030000 requested but the memory is mapped already [ 22.514685] 9093 (sed): Uhuuh, elf segment at 0000000010030000 requested but the memory is mapped already [ 22.565793] 9103 (sed): Uhuuh, elf segment at 0000000010030000 requested but the memory is mapped already [ 22.567874] 9106 (sed): Uhuuh, elf segment at 0000000010030000 requested but the memory is mapped already [ 123.469490] 9173 (fprintd): Uhuuh, elf segment at 0000000010020000 requested but the memory is mapped already [ 137.468372] 9182 (hostname): Uhuuh, elf segment at 0000000010020000 requested but the memory is mapped already [ 137.644647] 9205 (pkg-config): Uhuuh, elf segment at 0000000010020000 requested but the memory is mapped already [ 137.811893] 9219 (sed): Uhuuh, elf segment at 0000000010030000 requested but the memory is mapped already [ 164.739135] 9232 (less): Uhuuh, elf segment at 0000000010040000 requested but the memory is mapped already
