On Thu, Jan 22, 2015 at 09:04:45PM -0800, Guenter Roeck wrote: > On Thu, Jan 22, 2015 at 03:05:17PM -0800, akpm@xxxxxxxxxxxxxxxxxxxx wrote: > > The mm-of-the-moment snapshot 2015-01-22-15-04 has been uploaded to > > > > http://www.ozlabs.org/~akpm/mmotm/ > > > qemu:sh fails to shut down. > > bisect log: > > # bad: [03586ad04b2170ee816e6936981cc7cd2aeba129] pci: test for unexpectedly disabled bridges > # good: [ec6f34e5b552fb0a52e6aae1a5afbbb1605cc6cc] Linux 3.19-rc5 > git bisect start 'HEAD' 'v3.19-rc5' > # bad: [d113ba21d15c7d3615fd88490d1197615bb39fc0] mm: remove lock validation check for MADV_FREE > git bisect bad d113ba21d15c7d3615fd88490d1197615bb39fc0 > # good: [17351d1625a5030fa16f1346b77064c03b51f107] mm:add KPF_ZERO_PAGE flag for /proc/kpageflags > git bisect good 17351d1625a5030fa16f1346b77064c03b51f107 > # good: [ad18ad1fce6f241a9cbd4adfd6b16c9283181e39] memcg: add BUILD_BUG_ON() for string tables > git bisect good ad18ad1fce6f241a9cbd4adfd6b16c9283181e39 > # bad: [aa7e7cbfa43b74f6faef04ff730b5098544a4f77] mm/compaction: enhance tracepoint output for compaction begin/end > git bisect bad aa7e7cbfa43b74f6faef04ff730b5098544a4f77 > # good: [a40d0d2cf21e2714e9a6c842085148c938bf36ab] mm: memcontrol: remove unnecessary soft limit tree node test > git bisect good a40d0d2cf21e2714e9a6c842085148c938bf36ab > # good: [4ec4aa2e07c1d6eee61f6cace29401c6febcb6c5] mm: make FIRST_USER_ADDRESS unsigned long on all archs > git bisect good 4ec4aa2e07c1d6eee61f6cace29401c6febcb6c5 > # bad: [22310c209483224a64436a6e815a86feda681659] mm: account pmd page tables to the process > git bisect bad 22310c209483224a64436a6e815a86feda681659 > # good: [19a41261b1dcd8d12372d9c57c2035144608a599] arm: define __PAGETABLE_PMD_FOLDED for !LPAE > git bisect good 19a41261b1dcd8d12372d9c57c2035144608a599 > # first bad commit: [22310c209483224a64436a6e815a86feda681659] mm: account pmd page tables to the process > > --- > > qemu:microblaze generates warnings to the console. > > WARNING: CPU: 0 PID: 32 at mm/mmap.c:2858 exit_mmap+0x184/0x1a4() > > with various call stacks. See > http://server.roeck-us.net:8010/builders/qemu-microblaze-mmotm/builds/15/steps/qemubuildcommand/logs/stdio > for details. Could you try patch below? Completely untested. >From b584bb8d493794f67484c0b57c161d61c02599bc Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" <kirill.shutemov@xxxxxxxxxxxxxxx> Date: Fri, 23 Jan 2015 13:08:26 +0200 Subject: [PATCH] microblaze: define __PAGETABLE_PMD_FOLDED Microblaze uses custom implementation of PMD folding, but doesn't define __PAGETABLE_PMD_FOLDED, which generic code expects to see. Let's fix it. Defining __PAGETABLE_PMD_FOLDED will drop out unused __pmd_alloc(). It also fixes problems with recently-introduced pmd accounting. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> Reported-by: Guenter Roeck <linux@xxxxxxxxxxxx> --- arch/microblaze/include/asm/pgtable.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h index 46637bb090eb..e53b8532353c 100644 --- a/arch/microblaze/include/asm/pgtable.h +++ b/arch/microblaze/include/asm/pgtable.h @@ -61,6 +61,8 @@ extern int mem_init_done; #include <asm-generic/4level-fixup.h> +#define __PAGETABLE_PMD_FOLDED + #ifdef __KERNEL__ #ifndef __ASSEMBLY__ -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>