Eric Lee / smarc-fsl-linux-kernel

11 Sep, 2015

1 commit

  • 2d3862d26   lib/decompressors: use real out buf size for gunzip with kernel ... Browse Code »

    When loading x86 64bit kernel above 4GiB with patched grub2, got kernel
    gunzip error.

    | early console in decompress_kernel
    | decompress_kernel:
    | input: [0x807f2143b4-0x807ff61aee]
    | output: [0x807cc00000-0x807f3ea29b] 0x027ea29c: output_len
    | boot via startup_64
    | KASLR using RDTSC...
    | new output: [0x46fe000000-0x470138cfff] 0x0338d000: output_run_size
    | decompress: [0x46fe000000-0x47007ea29b]
    Cc: Alexandre Courbot
    Cc: Jon Medhurst
    Cc: Stephen Warren
    Cc: "H. Peter Anvin"
    Cc: Thomas Gleixner
    Cc: Ingo Molnar
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yinghai Lu
     

14 Dec, 2014

1 commit

  • b5c8afe5b   decompress_bunzip2: off by one in get_next_block() ... Browse Code »

    "origPtr" is used as an offset into the bd->dbuf[] array. That array is
    allocated in start_bunzip() and has "bd->dbufSize" number of elements so
    the test here should be >= instead of >.

    Later we check "origPtr" again before using it as an offset so I don't
    know if this bug can be triggered in real life.

    Fixes: bc22c17e12c1 ('bzip2/lzma: library support for gzip, bzip2 and lzma decompression')
    Signed-off-by: Dan Carpenter
    Cc: Alain Knaff
    Cc: Yinghai Lu
    Cc: "H. Peter Anvin"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dan Carpenter
     

09 Aug, 2014

1 commit

  • d97b07c54   initramfs: support initramfs that is bigger than 2GiB ... Browse Code »

    Now with 64bit bzImage and kexec tools, we support ramdisk that size is
    bigger than 2g, as we could put it above 4G.

    Found compressed initramfs image could not be decompressed properly. It
    turns out that image length is int during decompress detection, and it
    will become < 0 when length is more than 2G. Furthermore, during
    decompressing len as int is used for inbuf count, that has problem too.

    Change len to long, that should be ok as on 32 bit platform long is
    32bits.

    Tested with following compressed initramfs image as root with kexec.
    gzip, bzip2, xz, lzma, lzop, lz4.
    run time for populate_rootfs():
    size name Nehalem-EX Westmere-EX Ivybridge-EX
    9034400256 root_img : 26s 24s 30s
    3561095057 root_img.lz4 : 28s 27s 27s
    3459554629 root_img.lzo : 29s 29s 28s
    3219399480 root_img.gz : 64s 62s 49s
    2251594592 root_img.xz : 262s 260s 183s
    2226366598 root_img.lzma: 386s 376s 277s
    2901482513 root_img.bz2 : 635s 599s

    Signed-off-by: Yinghai Lu
    Cc: "H. Peter Anvin"
    Cc: Ingo Molnar
    Cc: Rashika Kheria
    Cc: Josh Triplett
    Cc: Kyungsik Lee
    Cc: P J P
    Cc: Al Viro
    Cc: Tetsuo Handa
    Cc: "Daniel M. Weeks"
    Cc: Alexandre Courbot
    Cc: Jan Beulich
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Yinghai Lu
     

06 Dec, 2011

2 commits

14 Jan, 2011

2 commits

  • 2b6b5caa6   Decompressors: include <linux/slab.h> in <linux/decompress/mm.h> ... Browse Code »

    Currently users of mm.h need to include to use the macros
    malloc() and free() provided by mm.h. This fixes it.

    Signed-off-by: Lasse Collin
    Cc: "H. Peter Anvin"
    Cc: Alain Knaff
    Cc: Albin Tonnerre
    Cc: Phillip Lougher
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Lasse Collin
     
  • 93685ad24   Decompressors: get rid of set_error_fn() macro ... Browse Code »

    set_error_fn() has become a useless complication after c1e7c3ae59
    ("bzip2/lzma/gzip: pre-boot malloc doesn't return NULL on failure") fixed
    the use of error() in malloc(). Only decompress_unlzma.c had some use for
    it and that was easy to change too.

    This also gets rid of the static function pointer "error", which
    should have been marked as __initdata.

    Signed-off-by: Lasse Collin
    Cc: "H. Peter Anvin"
    Cc: Alain Knaff
    Cc: Albin Tonnerre
    Cc: Phillip Lougher
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Lasse Collin
     

11 Aug, 2010

1 commit

  • dd21e9bdf   lib/decompress_bunzip2.c: fix checkstack warning ... Browse Code »

    Fix checkstack error:

    lib/decompress_bunzip2.c: In function `get_next_block':
    lib/decompress_bunzip2.c:511: warning: the frame size of 1932 bytes is larger than 1024 bytes

    byteCount, symToByte, and mtfSymbol cannot be declared static or allocated
    dynamically so place them in the bunzip_data struct.

    Signed-off-by: Prarit Bhargava
    Cc: Phillip Lougher
    Cc: "H. Peter Anvin"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Prarit Bhargava