lkml.org 
[lkml]   [2015]   [Jul]   [9]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Build failure on ARM64 for Linux 4.2-rc1 was: Linux 4.2-rc1
    On 07/07/2015 07:56 AM, Mark Langsdorf wrote:
    > On 07/05/2015 03:22 PM, Linus Torvalds wrote:
    >> It's Sunday, two weeks have passed, and the merge window is closed. I
    >> just pushed out the tag to the git trees, and tar-balls and patches
    >> should be mirroring out too.
    >
    > I'm seeing a build regression on arm64 for tools/perf.
    >
    > On linux-4.1, it builds fine.
    >
    > On linux-4.2-rc1, it dies with this relevant message (skipping the
    > missing defines, etc):
    >
    > /home/mlangsdorf/tmp/linux-4.2/include/linux/preempt.h: At top level:
    > /home/mlangsdorf/tmp/linux-4.2/include/linux/preempt.h:64:25: fatal
    > error: asm/preempt.h: No such file or directory
    > #include <asm/preempt.h>
    >
    > On both versions, arch/arm64/include/generated/asm/preempt.h
    > exists. I'm guessing something changed in the build system so
    > that's its not being picked up for 4.2-rc1 but I'm not sure where
    > to look.

    Hi Peter,

    I did a git bisect and it looks like the faulty patch is
    d72da4a4d973d8a0a0d3c97e7cdebf287fbe3a99, "rbtree: Make lockless
    searches non-fatal". I can't see why it causes my builds to fail,
    but if I revert that patch and the related series, then I can
    build the kernel and build tools/perf successfully.

    Any insight into a less intensive way of fixing my build would
    be appreciated.

    --Mark Langsdorf


    \
     
     \ /
      Last update: 2015-07-09 19:21    [W:4.252 / U:0.056 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site