lkml.org 
[lkml]   [2007]   [Jun]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: Device hang when offlining a CPU due to IRQ misrouting
    On Mon, Jun 18, 2007 at 04:54:34PM -0700, Siddha, Suresh B wrote:

    > > <call to set_affinity>
    > > [ 256.298787] irq=4341 affinity=d
    > > <ethernet on irq 4341 stops working>
    >
    > And just to make sure, at this point, your MSI irq 4341 affinity
    > (/proc/irq/4341/smp_affinity) still points to '2'?

    Actually, it's 0xD. From the kernel's perspective the mask has been
    updated (and I even stuck a printk into set_msi_irq_affinity to verify
    that the writes are happening) but ... the hardware doesn't seem to
    reflect this. I also tried putting read_msi_msg right afterwards to
    compare contents, though it complained about all the MSIs _except_ for
    4341. (Of course, I could just be way off on the effectiveness of
    that.)

    --D
    [unhandled content-type:application/pgp-signature]
    \
     
     \ /
      Last update: 2007-06-19 02:53    [W:3.653 / U:0.044 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site