Messages in this thread Patch in this message | | | Date | Fri, 23 Apr 1999 16:22:44 +0200 (CEST) | From | Andrea Arcangeli <> | Subject | Re: SMP lockup & 3c509 on 2.2.x [aka. the Deadly 'ping -f'] |
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On Mon, 19 Apr 1999, M.H.VanLeeuwen wrote:
>wait_on_irq, CPU 0 > irq 2[0,2] > bh 2[0,0] ><[c0109ca1]> <[c0109bde]>.... > >c0109ca1 <__global_cli+bd/14c> >c0109bde <synchronize_irq+e/14> >c0109ed1 <disable_irq+61/68> >c015ed4d <qdisc_restart+39/6c> >c015aa43 <dev_queue_xmit+3b/c8> >c0164719 <ip_output+85/b8> >c016521a <ip_build_xmit+29a/2cc>
I want a larger view on the trace, please apply this patch, and hope to get a longer trace at the next lockup ;).
Index: irq.c =================================================================== RCS file: /var/cvs/linux/arch/i386/kernel/irq.c,v retrieving revision 1.1.2.14 diff -u -r1.1.2.14 irq.c --- irq.c 1999/04/17 14:58:41 1.1.2.14 +++ linux/arch/i386/kernel/irq.c 1999/04/23 14:21:01 @@ -478,11 +478,13 @@ printk("bh: %d [%d %d]\n", atomic_read(&global_bh_count), local_bh_count[0], local_bh_count[1]); stack = (unsigned long *) &stack; - for (i = 40; i ; i--) { + for (;;) { unsigned long x = *++stack; if (x > (unsigned long) &get_options && x < (unsigned long) &vsprintf) { printk("<[%08lx]> ", x); } + if (!(x & 0x2000)) /* break if we finished the stack */ + break; } } Andrea Arcangeli
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