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  • Bug#865314: debian-installer-9-netboot-mips: 32bit MIPS (big-endian

    From James Cowgill@21:1/5 to Steve McIntyre on Tue Jun 20 18:20:01 2017
    XPost: linux.debian.bugs.dist, linux.debian.maint.boot
    To: list@bierbaumer.net (Bruno Bierbaumer)
    Copy: 865314@bugs.debian.org
    Copy: debian-mips@lists.debian.org

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    Hi,

    On 20/06/17 15:11, Steve McIntyre wrote:
    On Tue, Jun 20, 2017 at 04:01:26PM +0200, Bruno Bierbaumer wrote:
    Yes, it works perfectly well for Debian Jessie.

    Ok, thanks for confirming.

    mips folks - any clues please? AFAICS we've had ~zero input about mips
    in d-i and image work, and no visible testing. Some help would be appreciated...

    On Tue, 20 Jun 2017 14:47:52 +0100 Steve McIntyre <steve@einval.com> wrote: >>> On Tue, Jun 20, 2017 at 03:43:36PM +0200, Bruno Bierbaumer wrote:
    It also seems to be broken on MIPSEL

    wget
    http://ftp.nl.debian.org/debian/dists/stretch/main/installer-mipsel/current/images/malta/netboot/initrd.gz
    wget
    http://ftp.nl.debian.org/debian/dists/stretch/main/installer-mipsel/current/images/malta/netboot/vmlinux-4.9.0-3-4kc-malta
    qemu-system-mipsel -M malta -m 256 -kernel vmlinux-4.9.0-3-4kc-malta
    -initrd initrd.gz -nographic

    Hi Bruno,

    Did the same setup work with jessie images? I've got ~no background
    with mips stuff here...

    I think I know which error you mean (and I confess I have seen it
    before). The issue is that QEMU loads the initrd into the memory
    immediately after the kernel, but that bit of memory might get
    overwritten by KASLR when the kernel starts and relocates itself.

    You can workaround it by passing "-append nokaslr" to QEMU, but I guess
    that QEMU should be fixed to place the initrd in a higher bit of memory.

    James


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