1. 21 May, 2012 34 commits
  2. 20 May, 2012 1 commit
  3. 19 May, 2012 5 commits
    • Linus Torvalds's avatar
      Merge tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6 · d6c77973
      Linus Torvalds authored
      Pull PA-RISC fixes from James Bottomley:
       "This is a set of three bug fixes that gets parisc running again on
        systems with PA1.1 processors.
      
        Two fix regressions introduced in 2.6.39 and one fixes a prefetch bug
        that only affects PA7300LC processors.  We also have another pending
        fix to do with the sectional arrangement of vmlinux.lds, but there's a
        query on it during testing on one particular system type, so I'll hold
        off sending it in for now."
      
      * tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
        [PARISC] fix panic on prefetch(NULL) on PA7300LC
        [PARISC] fix crash in flush_icache_page_asm on PA1.1
        [PARISC] fix PA1.1 oops on boot
      d6c77973
    • Linus Torvalds's avatar
      Merge branch 'x86/ld-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip · 5d120458
      Linus Torvalds authored
      Pull x86 linker bug workarounds from Peter Anvin.
      
      GNU ld-2.22.52.0.[12] (*) has an unfortunate bug where it incorrectly
      turns certain relocation entries absolute.  Section-relative symbols
      that are part of otherwise empty sections are silently changed them to
      absolute.  We rely on section-relative symbols staying section-relative,
      and actually have several sections in the linker script solely for this
      purpose.
      
      See for example
      
         http://sourceware.org/bugzilla/show_bug.cgi?id=14052
      
      We could just black-list the buggy linker, but it appears that it got
      shipped in at least F17, and possibly other distros too, so it's sadly
      not some rare unusual case.
      
      This backports the workaround from the x86/trampoline branch, and as
      Peter says: "This is not a minimal fix, not at all, but it is a tested
      code base."
      
      * 'x86/ld-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
        x86, relocs: When printing an error, say relative or absolute
        x86, relocs: Workaround for binutils 2.22.52.0.1 section bug
        x86, realmode: 16-bit real-mode code support for relocs tool
      
      (*) That's a manly release numbering system. Stupid, sure. But manly.
      5d120458
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.dk/linux-block · 14e931a2
      Linus Torvalds authored
      Pull block layer fixes from Jens Axboe:
       "A few small, but important fixes.  Most of them are marked for stable
        as well
      
         - Fix failure to release a semaphore on error path in mtip32xx.
         - Fix crashable condition in bio_get_nr_vecs().
         - Don't mark end-of-disk buffers as mapped, limit it to i_size.
         - Fix for build problem with CONFIG_BLOCK=n on arm at least.
         - Fix for a buffer overlow on UUID partition printing.
         - Trivial removal of unused variables in dac960."
      
      * 'for-linus' of git://git.kernel.dk/linux-block:
        block: fix buffer overflow when printing partition UUIDs
        Fix blkdev.h build errors when BLOCK=n
        bio allocation failure due to bio_get_nr_vecs()
        block: don't mark buffers beyond end of disk as mapped
        mtip32xx: release the semaphore on an error path
        dac960: Remove unused variables from DAC960_CreateProcEntries()
      14e931a2
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net · a2ae9787
      Linus Torvalds authored
      Pull one more networking bug-fix from David Miller:
       "One last straggler.
      
        Eric Dumazet's pktgen unload oops fix was not entirely complete, but
        all the cases should be handled properly now....  fingers crossed."
      
      * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
        pktgen: fix module unload for good
      a2ae9787
    • Hugh Dickins's avatar
      memcg,thp: fix res_counter:96 regression · 62ade86a
      Hugh Dickins authored
      Occasionally, testing memcg's move_charge_at_immigrate on rc7 shows
      a flurry of hundreds of warnings at kernel/res_counter.c:96, where
      res_counter_uncharge_locked() does WARN_ON(counter->usage < val).
      
      The first trace of each flurry implicates __mem_cgroup_cancel_charge()
      of mc.precharge, and an audit of mc.precharge handling points to
      mem_cgroup_move_charge_pte_range()'s THP handling in commit 12724850
      ("memcg: avoid THP split in task migration").
      
      Checking !mc.precharge is good everywhere else, when a single page is to
      be charged; but here the "mc.precharge -= HPAGE_PMD_NR" likely to
      follow, is liable to result in underflow (a lot can change since the
      precharge was estimated).
      
      Simply check against HPAGE_PMD_NR: there's probably a better
      alternative, trying precharge for more, splitting if unsuccessful; but
      this one-liner is safer for now - no kernel/res_counter.c:96 warnings
      seen in 26 hours.
      Signed-off-by: default avatarHugh Dickins <hughd@google.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      62ade86a