Eric Lee / smarc-fsl-linux-kernel

16 May, 2006

1 commit

  • 5e3766138   [PATCH] symbol_put_addr() locks kernel ... Browse Code »

    Even since a previous patch:

    Fix race between CONFIG_DEBUG_SLABALLOC and modules
    Sun, 27 Jun 2004 17:55:19 +0000 (17:55 +0000)
    http://www.kernel.org/git/?p=linux/kernel/git/torvalds/old-2.6-bkcvs.git;a=commit;h=92b3db26d31cf21b70e3c1eadc56c179506d8fbe

    The function symbol_put_addr() will deadlock the kernel.

    symbol_put_addr() would acquire modlist_lock, then while holding the lock call
    two functions kernel_text_address() and module_text_address() which also try
    to acquire the same lock. This deadlocks the kernel of course.

    This patch changes symbol_put_addr() to not acquire the modlist_lock, it
    doesn't need it since it never looks at the module list directly. Also, it
    now uses core_kernel_text() instead of kernel_text_address(). The latter has
    an additional check for addr inside a module, but we don't need to do that
    since we call module_text_address() (the same function kernel_text_address
    uses) ourselves.

    Signed-off-by: Trent Piepho
    Cc: Zwane Mwaikambo
    Acked-by: Rusty Russell
    Cc: Johannes Stezenbach
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Trent Piepho
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds