lkml.org 
[lkml]   [2006]   [Feb]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    From
    SubjectRe: [discuss] mmap, mbind and write to mmap'ed memory crashes 2.6.16-rc1[2] on 2 node X86_64
    Date
    On Sunday 05 February 2006 17:36, Bharata B Rao wrote:
    > Hi,
    >
    > I am seeing a kernel crash with 2.6.16-rc1 and rc2 but not on any
    > 2.6.15 kernels (rc and 2.6.15.2). Arch is x86_64.
    >
    > The kernel crashes when I run an application which does:
    > - mmap (0, size, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS)
    > - mbind the memory to the 1st node with policy MPOL_BIND
    > - write to that memory
    >
    > The crash time log on 2.6.16-rc2 looks like this:
    >
    > Unable to handle kernel NULL pointer dereference at 0000000000000008 RIP:
    > <ffffffff801614df>{__rmqueue+63}

    There's another report of it. The boot logs seem ok, so I guess
    mbind broke somehow. I suppose it's related to the mempolicy changes
    that went into 2.6.16-rc1. I'll try to take a look tomorrow if
    Christoph doesn't beat it.

    OOM with mbind seems to have broken also - it oopses too.

    -Andi
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2006-02-05 18:08    [W:5.127 / U:0.012 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site