lkml.org 
[lkml]   [2006]   [Jun]   [29]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: [BUG] Linux-2.6.17-rt3 on arm ixdp465
    From
    Date
    > >
    > > > Thank you for your answer, I look at it too...
    > > >
    > >
    > > eepro100 seems to be SMP safe, so it shouldn't be there.
    > > Have anyone else used eepro100 with preempt-realtime?

    > I use to use it a while back ago, when e100 would screw up my network
    > card. But that has been fixed so I don't use eepro100 and I would
    > recommend anyone else to switch to e100.

    I have been using it because the same reason as you, but simply didn't
    noticed that e100 works now ;-)

    I switched to e100 and turned debug messages on and got many of these:

    BUG: scheduling with irqs disabled: softirq-net-rx//0x00000000/6
    caller is schedule+0x10/0x114
    [<c0024e24>] (dump_stack+0x0/0x28) from [<c01ae528>] (schedule+0xf8/0x114)
    [<c01ae430>] (schedule+0x0/0x114) from [<c01afb60>]
    (rt_lock_slowlock+0x100/0x240)
    r5 = C01F070C r4 = C4150000
    [<c01afa60>] (rt_lock_slowlock+0x0/0x240) from [<c01aff28>]
    (__lock_text_start+0x18/0x1c)
    [<c01aff10>] (__lock_text_start+0x0/0x1c) from [<c0078b08>]
    (kfree+0x2c/0x84)
    [<c0078adc>] (kfree+0x0/0x84) from [<c002aab0>]
    (dma_unmap_single+0x110/0x1a8)
    r5 = C4124BE0 r4 = C7C4B6E0
    [<c002a9a0>] (dma_unmap_single+0x0/0x1a8) from [<c012766c>]
    (e100_poll+0x2e0/0x59c)
    r8 = C432A3A0 r7 = C41C9BA0 r6 = C41C9B60 r5 = 00000001
    r4 = FFC881C0
    [<c012738c>] (e100_poll+0x0/0x59c) from [<c0148280>]
    (net_rx_action+0xa0/0x1a4)
    [<c01481e0>] (net_rx_action+0x0/0x1a4) from [<c0039020>]
    (ksoftirqd+0x110/0x1b0)
    [<c0038f10>] (ksoftirqd+0x0/0x1b0) from [<c00490d8>] (kthread+0x110/0x13c)
    [<c0048fc8>] (kthread+0x0/0x13c) from [<c0035054>] (do_exit+0x0/0x998)
    r8 = 00000000 r7 = 00000000 r6 = 00000000 r5 = 00000000
    r4 = 00000000
    ---------------------------
    | preempt count: 00000000 ]
    | 0-level deep critical section nesting:
    ----------------------------------------

    These messages are different as their source seems to be softirq-net-rx. I
    cannot reproduce
    the original bug now...


    PS: Is latency tracing working on arm platform? I'm unable to get this
    statistic...

    Milan


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

    \
     
     \ /
      Last update: 2006-06-29 12:20    [W:0.022 / U:32.876 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site