Re: 2.6.12.1 problems I meet (please CC: me)

From: Wang Jian (larkwang_at_gmail.com)
Date: 06/30/05

  • Next message: Steven Rostedt: "Re: PREEMPT_RT and I-PIPE: the numbers, take 3" 
    Date:	Thu, 30 Jun 2005 14:44:12 +0800
To: Jens Axboe <axboe@suse.de>

    [root@devel root]# gcc --version
    gcc (GCC) 3.3.2 (Mandrake Linux 10.0 3.3.2-6mdk)

    I will try 2.6.12.2 and report back.

    On 6/30/05, Jens Axboe <axboe@suse.de> wrote:
    > On Thu, Jun 30 2005, Wang Jian wrote:
    > > Hi,
    > >
    > > I use a customized kernel to do packets analysis. The analysis code is
    > > linked into kernel. It will vmalloc() nearly 128M (a little less) when
    > > initialized.
    > >
    > > The original code runs on 2.6.10 and works fine. The platform is a
    > > general P4 with 100M ethernet. The user space system is a 8M compressed
    > > ramdisk image which is a 32M filesystem.
    > >
    > > Now I want to make it work on 2.6.12+ and on Athlon64 platform, for
    > > better driver and better CPU/NIC performance.
    > >
    > > I have a P4 box (compilation bed, CB), a 2-way Athlon64 box (test bed,
    > > TB).
    > >
    > > The problems are:
    > >
    > > 1. I port the code directly to 2.6.12.1 on CB, and it compiles ok. But
    > > during boot, the kernel boot with error "unknown bus type 0" and freeze.
    > > Especially, it can't detect harddisk's partition table. I use "quiet" to
    > > strip non-error message and hand copy error messages
    >
    > Which compiler? 2.6.12.2 should work for you, looks like you are hit my
    > the memcpy reordering bug.
    >
    > --
    > Jens Axboe
    >
    >
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