On Tue, Sep 23, 2014 at 01:01:28PM -0700, Andrew Morton wrote: > On Tue, 23 Sep 2014 12:02:22 -0700 Guenter Roeck <linux@xxxxxxxxxxxx> wrote: > > > On Mon, Sep 22, 2014 at 05:02:56PM -0700, akpm@xxxxxxxxxxxxxxxxxxxx wrote: > > > The mm-of-the-moment snapshot 2014-09-22-16-57 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. > > > > > Sine I started testing this branch, I figure I might as well share the results. > > > > Build results: > > total: 133 pass: 115 fail: 18 > > Failed builds: > > alpha:defconfig > > alpha:allmodconfig > > arm:imx_v6_v7_defconfig > > arm:imx_v4_v5_defconfig > > i386:allyesconfig > > i386:allmodconfig > > m68k:allmodconfig > > mips:nlm_xlp_defconfig > > parisc:a500_defconfig > > powerpc:cell_defconfig > > powerpc:ppc6xx_defconfig > > powerpc:mpc85xx_defconfig > > powerpc:mpc85xx_smp_defconfig > > tile:tilegx_defconfig > > > > Qemu test results: > > total: 24 pass: 23 fail: 1 > > Failed tests: > > alpha:alpha_defconfig > > > > More information is available at http://server.roeck-us.net:8010/builders. > > Note that powerpc failures are counted twice because they are built twice, > > once with binutils 2.23 and once with 2.24. > > > > The most scary problem (in my opinion) is the failed mips:nlm_xlp_defconfig > > build. It is caused by 'scsi_netlink : Make SCSI_NETLINK dependent on NET > > instead of selecting NET', which effectively disables CONFIG_NET for around > > 30 configurations (assuming I found them all). The practical impact is that > > the affected configurations won't really work anymore, even if they compile. > > cc'ing Anish Bhatt. > He knows about it, as do David Miller and Randy Dunlap (who proposed it) [1]. There just doesn't seem to be an agreement on how to fix the problem. A simple revert doesn't work anymore since there are multiple follow-up patches, and if I understand correctly David is opposed to a revert anyway. I submitted a set of RFC patches in an attempt to fix the problem for MIPS [2], but I did not yet get any feedback. Since then I identified 20 more affected (non-mips) configurations. > > Guenter > > > > --- > > Details: > > > > alpha (including qemu) > > > > drivers/tty/serial/8250/8250_core.c: In function 'serial8250_ioctl': > > drivers/tty/serial/8250/8250_core.c:2874:7: error: 'TIOCSRS485' undeclared > > > > arm:imx_v6_v7_defconfig > > arm:imx_v4_v5_defconfig > > > > drivers/media/platform/coda/coda-bit.c: In function 'coda_fill_bitstream': > > drivers/media/platform/coda/coda-bit.c:231:4: error: implicit declaration of function 'kmalloc' > > drivers/media/platform/coda/coda-bit.c: In function 'coda_alloc_framebuffers': > > drivers/media/platform/coda/coda-bit.c:312:3: error: implicit declaration of function 'kfree' > > That's odd - it includes slab.h. Cc Fabio. > Turns out that include is in next-20149023, and the problem is gone there. Maybe your tree just missed the necessary patch. > > i386:allyesconfig > > > > drivers/built-in.o: In function `_scsih_qcmd': > > mpt2sas_scsih.c:(.text+0xf5327d): undefined reference to `__udivdi3' > > mpt2sas_scsih.c:(.text+0xf532b0): undefined reference to `__umoddi3' > > > > i386:allmodconfig > > > > ERROR: "__udivdi3" [drivers/scsi/mpt2sas/mpt2sas.ko] undefined! > > ERROR: "__umoddi3" [drivers/scsi/mpt2sas/mpt2sas.ko] undefined! > > Sigh. > A patch to fix a problem was submitted. Two times, actually, if I recall correctly. Should be somewhere in the queue. > > m68k:allmodconfig > > > > drivers/tty/serial/st-asc.c: In function 'asc_in': > > drivers/tty/serial/st-asc.c:154:2: error: implicit declaration of function 'readl_relaxed' > > > > mips:nlm_xlp_defconfig > > > > ERROR: "scsi_is_fc_rport" [drivers/scsi/libfc/libfc.ko] undefined! > > ERROR: "fc_get_event_number" [drivers/scsi/libfc/libfc.ko] undefined! > > ERROR: "skb_trim" [drivers/scsi/libfc/libfc.ko] undefined! > > ERROR: "fc_host_post_event" [drivers/scsi/libfc/libfc.ko] undefined! > > > > [and many more] > > > > parisc:a500_defconfig > > > > ERROR: "csum_partial" [drivers/scsi/scsi_debug.ko] undefined! > > > > powerpc:cell_defconfig > > powerpc:mpc85xx_defconfig > > powerpc:mpc85xx_smp_defconfig > > > > arch/powerpc/mm/hugetlbpage.c:710:1: error: conflicting types for 'follow_huge_pud' > > follow_huge_pud(struct mm_struct *mm, unsigned long address, > > ^ > > In file included from arch/powerpc/mm/hugetlbpage.c:14:0: include/linux/hugetlb.h:103:14: > > note: previous declaration of 'follow_huge_pud' was here > > struct page *follow_huge_pud(struct mm_struct *mm, unsigned long address, > ^ > > Naoya, please check: > > --- a/arch/powerpc/mm/hugetlbpage.c~mm-hugetlb-reduce-arch-dependent-code-around-follow_huge_-fix > +++ a/arch/powerpc/mm/hugetlbpage.c > @@ -708,7 +708,7 @@ follow_huge_pmd(struct mm_struct *mm, un > > struct page * > follow_huge_pud(struct mm_struct *mm, unsigned long address, > - pmd_t *pmd, int write) > + pud_t *pud, int write) > { > BUG(); > return NULL; > _ > > > powerpc:ppc6xx_defconfig > > > > In file included from include/linux/kernel.h:13:0, from mm/debug.c:8: > > mm/debug.c: In function 'dump_mm': > > mm/debug.c:212:5: error: 'const struct mm_struct' has no member named 'owner' > > I fixed that. > > > tile:tilegx_defconfig > > > > mm/debug.c: In function 'dump_mm': > > mm/debug.c:169:2: error: expected ')' before 'mm' > > Don't have a clue. In my tree that's > > pr_emerg("mm %p mmap %p seqnum %d task_size %lu\n" > Culprit is +#if defined(CONFIG_NUMA_BALANCING) || defined(CONFIG_COMPACTION) + "tlb_flush_pending %d\n", +#endif This is due to Sasha Levin's patch 'mm: introduce VM_BUG_ON_MM'. The above doesn't work if neither CONFIG_NUMA_BALANCING nor CONFIG_COMPACTION are defined due to the ',' at the end with is missing in that case. Guenter --- [1] https://lkml.org/lkml/2014/9/19/558 [2] https://lkml.org/lkml/2014/9/20/215 -- 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>