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    SubjectRe: 2.6.18-rc4-mm1: eth0: trigger_send() called with the transmitter busy
    Date
    On Monday 14 August 2006 22:06, Laurent Riffard wrote:
    > Le 14.08.2006 19:47, Laurent Riffard a écrit :
    > > Le 14.08.2006 18:50, Andrew Morton a écrit :
    > >> On Mon, 14 Aug 2006 16:38:47 +0200
    > >> Laurent Riffard <laurent.riffard@free.fr> wrote:
    > >>
    > >>> Le 13.08.2006 10:24, Andrew Morton a __crit :
    > >>>> ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.18-rc4/2.6.18-rc4-mm1/
    > >>> Hello,
    > >>>
    > >>> This morning, while trying to suspend to disk, my box started to loop
    > >>> displaying the following message:
    > >>> eth0: trigger_send() called with the transmitter busy.
    > >>>
    > >>> Here is the scenario. I booted 2.6.18-rc4-mm1 with this command line:
    > >>> root=/dev/vglinux1/lvroot video=vesafb:ywrap,mtrr splash=silent resume=/dev/hdb7 netconsole=@192.163.0.3/,@192.168.0.1/00:0E:9B:91:ED:72 init 1
    > >>>
    > >>> Then I issued:
    > >>> # echo 6 > /proc/sys/kernel/printk
    > >>> # echo disk > /sys/power/state
    > >> ne2k isn't <ahem> the most actively-maintained driver.
    > >>
    > >> But most (I think all) net drivers have problems during suspend when
    > >> netconsole is active. Does disabling netconsole help?
    > >
    > > Yes it does.
    > >
    > >> Did this operation work OK in earlier kernels, with netconsole enabled?
    > >
    > > It's the first time I see such a message. I can't speak for 2.6.18-rc3-mm2
    > > because it could not suspend at all (did hang right after
    > > "echo disk > /sys/power/state"), but it worked in earlier kernels.
    > >
    > > I'll try with plain 2.6.18-rc4.
    >
    > Same problem with 2.6.18-rc4.

    I think something like this will help (untested):

    kernel/power/disk.c | 7 +++++++
    1 files changed, 7 insertions(+)

    Index: linux-2.6.18-rc4-mm1/kernel/power/disk.c
    ===================================================================
    --- linux-2.6.18-rc4-mm1.orig/kernel/power/disk.c
    +++ linux-2.6.18-rc4-mm1/kernel/power/disk.c
    @@ -119,8 +119,10 @@ int pm_suspend_disk(void)
    if (error)
    return error;

    + suspend_console();
    error = device_suspend(PMSG_FREEZE);
    if (error) {
    + resume_console();
    printk("Some devices failed to suspend\n");
    unprepare_processes();
    return error;
    @@ -133,6 +135,7 @@ int pm_suspend_disk(void)

    if (in_suspend) {
    device_resume();
    + resume_console();
    pr_debug("PM: writing image.\n");
    error = swsusp_write();
    if (!error)
    @@ -148,6 +151,7 @@ int pm_suspend_disk(void)
    swsusp_free();
    Done:
    device_resume();
    + resume_console();
    unprepare_processes();
    return error;
    }
    @@ -212,7 +216,9 @@ static int software_resume(void)

    pr_debug("PM: Preparing devices for restore.\n");

    + suspend_console();
    if ((error = device_suspend(PMSG_PRETHAW))) {
    + resume_console();
    printk("Some devices failed to suspend\n");
    swsusp_free();
    goto Thaw;
    @@ -224,6 +230,7 @@ static int software_resume(void)
    swsusp_resume();
    pr_debug("PM: Restore failed, recovering.n");
    device_resume();
    + resume_console();
    Thaw:
    unprepare_processes();
    Done:
    -
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