lkml.org 
[lkml]   [2000]   [Jan]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: 2.3.41: kmalloc: Size (33554432) too large.
    On Mon, 31 Jan 2000, Tigran Aivazian wrote:
    > Why is it wrong? Let's assume we have nfds=1024, then since sizeof(struct
    > pollfd) = 8 we need 8192 bytes i.e. 2 pages to store all struct pollfd.
    > This means two full "chunks", fds[0] and fds[1] (nchunks=1), i.e. just two
    > pointers. ~~~~~~~~~

    I meant nchunks=2, nleft=0. Btw, the value you reported could occur only
    if the userspace passed nfds=2G-512,2G-511,...,2G-1, but that should have
    been caught by the clause:

    if (nfds > current->files->max_fds)
    return -EINVAL;

    So, it is still an open problem; I will try to see what may go wrong but
    any extra data (especially strace output containing calls to poll(2))
    would help greatly.

    Regards,
    Tigran.


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

    \
     
     \ /
      Last update: 2005-03-22 13:56    [W:0.045 / U:0.204 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site